Сөздік ендірулер
Related Papers
Event Role Labelling using a Neural Network Model (Étiquetage en rôles événementiels fondé sur l’utilisation d’un modèle neuronal) [in French]
. Information Extraction systems must cope with two problems : they heavily depend on the considered domain but the cost of development for a domain-specific system is important. We propose …...
Improved CCG Parsing with Semi-supervised Supertagging
AbstractCurrent supervised parsers are limited by the size of their labelled training data, making improving them with unlabelled data an important goal. We show how a state-of-the-art CCG parser can …...
Learning Sense-specific Word Embeddings By Exploiting Bilingual Resources
Recent work has shown success in learning word embeddings with neural network language models (NNLM). However, the majority of previous NNLMs represent each word with a single embedding, which fails …...
Neural Networks Leverage Corpus-wide Information for Part-of-speech Tagging
We propose a neural network approach to benefit from the non-linearity of corpus- wide statistics for part-of-speech (POS) tagging. We investigated several types of corpus-wide information for the words, such …...
Relation Classification via Convolutional Deep Neural Network
The state-of-the-art methods used for relation classification are primarily based on statistical ma- chine learning, and their performance strongly depends on the quality of the extracted features. The extracted features …...
Semantic Frame Identification with Distributed Word Representations
We present a novel technique for semantic frame identification using distributed rep- resentations of predicates and their syntac- tic context; this technique leverages auto- matic syntactic parses and a generic …...
UniPi: Recognition of Mentions of Disorders in Clinical Text
The paper describes our experiments ad- dressing the SemEval 2014 task on the Analysis of Clinical text. Our approach consists in extending the techniques of NE recognition, based on sequence …...
Using Mined Coreference Chains as a Resource for a Semantic Task
We propose to use coreference chains ex- tracted from a large corpus as a resource for semantic tasks. We extract three mil- lion coreference chains and train word embeddings on …...
Word Embeddings through Hellinger PCA
Word embeddings resulting from neural language models have been shown to be a great asset for a large variety of NLP tasks. However, such architecture might be difficult and time-consuming …...
A Word Embedding Approach to Predicting the Compositionality of Multiword Expressions
This paper presents the first attempt to use word embeddings to predict the composition- ality of multiword expressions. We consider both single- and multi-prototype word em- beddings. Experimental results show …...
Analysis of Word Embeddings and Sequence Features for Clinical Information Extraction
This study investigates the use of unsuper- vised features derived from word embed- ding approaches and novel sequence rep- resentation approaches for improving clin- ical information extraction systems. Our results …...
Better Summarization Evaluation with Word Embeddings for ROUGE
ROUGE is a widely adopted, automatic evaluation measure for text summariza- tion. While it has been shown to corre- late well with human judgements, it is bi- ased towards surface …...
Big Data Small Data, In Domain Out-of Domain, Known Word Unknown Word: The Impact of Word Representations on Sequence Labelling Tasks
Word embeddings — distributed word representations that can be learned from unlabelled data — have been shown to have high utility in many natural language processing applications. In this paper, …...
Combining Word Embeddings and Feature Embeddings for Fine-grained Relation Extraction
Compositional embedding models build a rep- resentation for a linguistic structure based on its component word embeddings. While re- cent work has combined these word embed- dings with hand crafted …...
Comparing Word Representations for Implicit Discourse Relation Classification
This paper presents a detailed compar- ative framework for assessing the use- fulness of unsupervised word representa- tions for identifying so-called implicit dis- course relations. Specifically, we compare standard one-hot …...
Convolutional Sentence Kernel from Word Embeddings for Short Text Categorization
This paper introduces a convolutional sen- tence kernel based on word embeddings. Our kernel overcomes the sparsity issue that arises when classifying short docu- ments or in case of little …...
Deep Multilingual Correlation for Improved Word Embeddings
Word embeddings have been found useful for many NLP tasks, including part-of-speech tagging, named entity recognition, and pars- ing. Adding multilingual context when learn- ing embeddings can improve their quality, …...
Fine-grained Opinion Mining with Recurrent Neural Networks and Word Embeddings
The tasks in fine-grained opinion mining can be regarded as either a token-level se- quence labeling problem or as a semantic compositional task. We propose a gen- eral class of …...
Morphological Word-Embeddings
Linguistic similarity is multi-faceted. For in- stance, two words may be similar with re- spect to semantics, syntax, or morphology in- ter alia. Continuous word-embeddings have been shown to capture …...
Online Learning of Interpretable Word Embeddings
Word embeddings encode semantic mean- ings of words into low-dimension word vectors. In most word embeddings, one cannot interpret the meanings of specific dimensions of those word vectors. Non- negative …...
Reducing Lexical Features in Parsing by Word Embeddings
The high-dimensionality of lexical features in parsing can be memory consuming and cause over-fitting problems. We propose a general framework to replace all lexical feature tem- plates by low-dimensional features …...
Sarcastic or Not: Word Embeddings to Predict the Literal or Sarcastic Meaning of Words
Sarcasm is generally characterized as a figure of speech that involves the substi- tution of a literal by a figurative mean- ing, which is usually the opposite of the original …...
Semi-Supervised Bootstrapping of Relationship Extractors with Distributional Semantics
Semi-supervised bootstrapping techniques for relationship extraction from text iter- atively expand a set of initial seed rela- tionships while limiting the semantic drift. We research bootstrapping for relationship extraction using …...
Syntax-Aware Multi-Sense Word Embeddings for Deep Compositional Models of Meaning
Deep compositional models of meaning acting on distributional representations of words in order to produce vectors of larger text constituents are evolving to a pop- ular area of NLP research. …...
Task-Oriented Learning of Word Embeddings for Semantic Relation Classification
We present a novel learning method for word embeddings designed for relation classification. Our word embeddings are trained by predicting words between noun pairs using lexical relation-specific fea- tures on …...
Unsupervised Most Frequent Sense Detection using Word Embeddings
An acid test for any new Word Sense Disam- biguation (WSD) algorithm is its performance against the Most Frequent Sense (MFS). The field of WSD has found the MFS baseline …...
Unsupervised POS Induction with Word Embeddings
Unsupervised word embeddings have been shown to be valuable as features in supervised learning problems; however, their role in unsu- pervised problems has been less thoroughly ex- plored. In this …...
Wiktionary-based word embeddings
Vectorial representations of words have grown remarkably popular in natural language process- ing and machine translation. The recent surge in deep learning-inspired methods for producing distributed representations has been widely …...
Word Embedding-based Antonym Detection using Thesauri and Distributional Information
This paper proposes a novel approach to train word embeddings to capture antonyms. Word embeddings have shown to capture synonyms and analogies. Such word embeddings, how- ever, cannot capture antonyms …...
A Comparison of Domain-based Word Polarity Estimation using different Word Embeddings
AbstractA key point in Sentiment Analysis is to determine the polarity of the sentiment implied by a certain word or expression. In basic Sentiment Analysis systems this sentiment polarity of …...
AI-KU at SemEval-2016 Task 11: Word Embeddings and Substring Features for Complex Word Identification
We investigate the usage of word embeddings, namely Glove and SCODE, along with sub- string features on Complex Word Identifica- tion task. We introduce two systems: the first system utilizes …...
Are Word Embedding-based Features Useful for Sarcasm Detection?
This paper makes a simple increment to state-of- the-art in sarcasm detection research. Existing ap- proaches are unable to capture subtle forms of con- text incongruity which lies at the …...
Attending to Characters in Neural Sequence Labeling Models
AbstractSequence labeling architectures use word embeddings for capturing similarity, but suffer when handling previously unseen or rare words. We investigate character-level extensions to such models and propose a novel architecture …...
AUEB-ABSA at SemEval-2016 Task 5: Ensembles of Classifiers and Embeddings for Aspect Based Sentiment Analysis
This paper describes our submissions to the Aspect Based Sentiment Analysis task of SemEval-2016. For Aspect Category Detec- tion (Subtask1/Slot1), we used multiple en- sembles, based on Support Vector Machine …...
aueb.twitter.sentiment at SemEval-2016 Task 4: A Weighted Ensemble of SVMs for Twitter Sentiment Analysis
This paper describes the system with which we participated in SemEval-2016 Task 4 (Sen- timent Analysis in Twitter) and specifically the Message Polarity Classification subtask. Our system is a weighted …...
Bad Company—Neighborhoods in Neural Embedding Spaces Considered Harmful
AbstractWe assess the reliability and accuracy of (neural) word embeddings for both modern and historical English and German. Our research provides deeper insights into the empirically justified choice of optimal …...
Bilingual Autoencoders with Global Descriptors for Modeling Parallel Sentences
AbstractParallel sentence representations are important for bilingual and cross-lingual tasks in natural language processing. In this paper, we explore a bilingual autoencoder approach to model parallel sentences. We extract sentence-level …...
Brundlefly at SemEval-2016 Task 12: Recurrent Neural Networks vs. Joint Inference for Clinical Temporal Information Extraction
We submitted two systems to the SemEval- 2016 Task 12: Clinical TempEval challenge, participating in Phase 1, where we identified text spans of time and event expressions in clinical notes …...
Building a Monolingual Parallel Corpus for Text Simplification Using Sentence Similarity Based on Alignment between Word Embeddings
AbstractMethods for text simplification using the framework of statistical machine translation have been extensively studied in recent years. However, building the monolingual parallel corpus necessary for training the model requires …...
Chinese Zero Pronoun Resolution with Deep Neural Networks
While unsupervised anaphoric zero pro- noun (AZP) resolvers have recently been shown to rival their supervised counter- parts in performance, it is relatively diffi- cult to scale them up to …...
Classifying Out-of-vocabulary Terms in a Domain-Specific Social Media Corpus
AbstractIn this paper we consider the problem of out-of-vocabulary term classification in web forum text from the automotive domain. We develop a set of nine domain- and application-specific categories for …...
CNN- and LSTM-based Claim Classification in Online User Comments
AbstractWhen processing arguments in online user interactive discourse, it is often necessary to determine their bases of support. In this paper, we describe a supervised approach, based on deep neural …...
Dialogue Act Classification in Domain-Independent Conversations Using a Deep Recurrent Neural Network
AbstractIn this study, we applied a deep LSTM structure to classify dialogue acts (DAs) in open-domain conversations. We found that the word embeddings parameters, dropout regularization, decay rate and number …...
Distance Metric Learning for Aspect Phrase Grouping
AbstractAspect phrase grouping is an important task in aspect-level sentiment analysis. It is a challenging problem due to polysemy and context dependency. We propose an Attention-based Deep Distance Metric Learning …...
Embeddings for Word Sense Disambiguation: An Evaluation Study
Recent years have seen a dramatic growth in the popularity of word embeddings mainly owing to their ability to capture se- mantic information from massive amounts of textual content. As …...
Encoding Prior Knowledge with Eigenword Embeddings
AbstractCanonical correlation analysis (CCA) is a method for reducing the dimension of data represented using two views. It has been previously used to derive word embeddings, where one view indicates …...
Evaluating Unsupervised Dutch Word Embeddings as a Linguistic Resource
AbstractWord embeddings have recently seen a strong increase in interest as a result of strong performance gains on a variety of tasks. However, most of this research also underlined the …...
Example-based Acquisition of Fine-grained Collocation Resources
AbstractCollocations such as “heavy rain” or “make [a] decision”, are combinations of two elements where one (the base) is freely chosen, while the choice of the other (collocate) is restricted, …...
Exploring Semantic Representation in Brain Activity Using Word Embeddings
In this paper, we utilize distributed word rep- resentations (i.e., word embeddings) to anal- yse the representation of semantics in brain activity. The brain activity data were recorded using functional …...
Implicit Discourse Relation Detection via a Deep Architecture with Gated Relevance Network
Word pairs, which are one of the most eas- ily accessible features between two text segments, have been proven to be very useful for detecting the discourse relations held between …...
Integrating Topic Modeling with Word Embeddings by Mixtures of vMFs
AbstractGaussian LDA integrates topic modeling with word embeddings by replacing discrete topic distribution over word types with multivariate Gaussian distribution on the embedding space. This can take semantic information of …...
Learning principled bilingual mappings of word embeddings while preserving monolingual invariance
Mapping word embeddings of different lan- guages into a single space has multiple appli- cations. In order to map from a source space into a target space, a common approach …...
Learning Word Meta-Embeddings
Word embeddings – distributed represen- tations of words – in deep learning are beneficial for many tasks in NLP. How- ever, different embedding sets vary greatly in quality and characteristics …...
LIMSI-COT at SemEval-2016 Task 12: Temporal relation identification using a pipeline of classifiers
SemEval 2016 Task 12 addresses temporal reasoning in the clinical domain. In this paper, we present our participation for relation ex- traction based on gold standard entities (sub- tasks DR …...
MGNC-CNN: A Simple Approach to Exploiting Multiple Word Embeddings for Sentence Classification
We introduce a novel, simple convolution neu- ral network (CNN) architecture – multi-group norm constraint CNN (MGNC-CNN) – that capitalizes on multiple sets of word embed- dings for sentence classification. …...
Morphological Priors for Probabilistic Neural Word Embeddings
Word embeddings allow natural language pro- cessing systems to share statistical information across related words. These embeddings are typically based on distributional statistics, mak- ing it difficult for them to …...
mwetoolkit+sem: Integrating Word Embeddings in the mwetoolkit for Semantic MWE Processing
AbstractThis paper presents mwetoolkit+sem: an extension of the mwetoolkit that estimates semantic compositionality scores for multiword expressions (MWEs) based on word embeddings. First, we describe our implementation of vector-space operations …...
On Approximately Searching for Similar Word Embeddings
We discuss an approximate similarity search for word embeddings, which is an operation to approximately find em- beddings close to a given vector. We compared several metric-based search al- gorithms …...
On the contribution of word embeddings to temporal relation classification
AbstractTemporal relation classification is a challenging task, especially when there are no explicit markers to characterise the relation between temporal entities. This occurs frequently in inter-sentential relations, whose entities are …...
Paraphrasing Out-of-Vocabulary Words with Word Embeddings and Semantic Lexicons for Low Resource Statistical Machine Translation
AbstractOut-of-vocabulary (OOV) word is a crucial problem in statistical machine translation (SMT) with low resources. OOV paraphrasing that augments the translation model for the OOV words by using the translation …...
Part-of-Speech Tagging for Historical English
As more historical texts are digitized, there is interest in applying natural language pro- cessing tools to these archives. However, the performance of these tools is often unsatisfac- tory, due …...
Prédiction structurée pour l’analyse syntaxique en constituants par transitions : modèles denses et modèles creux [Structured Prediction for Transition-based Constituent Parsing: Dense and Sparse Models]
. The article introduces a transition-based constituent parsing method relying on a deep-learning weighting scheme. This weighting method is compared to a structured percep- tron, which is a more traditional …...
Query Expansion with Locally-Trained Word Embeddings
Continuous space word embeddings have received a great deal of atten- tion in the natural language processing and machine learning communities for their ability to model term similarity and other …...
Selective Co-occurrences for Word-Emotion Association
AbstractEmotion classification from text typically requires some degree of word-emotion association, either gathered from pre-existing emotion lexicons or calculated using some measure of semantic relatedness. Most emotion lexicons contain a …...
Siamese CBOW: Optimizing Word Embeddings for Sentence Representations
We present the Siamese Continuous Bag of Words (Siamese CBOW) model, a neural network for efficient estimation of high- quality sentence embeddings. Averaging the embeddings of words in a sentence …...
SimpleScience: Lexical Simplification of Scientific Terminology
Lexical simplification of scientific terms rep- resents a unique challenge due to the lack of a standard parallel corpora and fast rate at which vocabulary shift along with research. We …...
Sub-Word Similarity based Search for Embeddings: Inducing Rare-Word Embeddings for Word Similarity Tasks and Language Modelling
AbstractTraining good word embeddings requires large amounts of data. Out-of-vocabulary words will still be encountered at test-time, leaving these words without embeddings. To overcome this lack of embeddings for rare …...
Symmetric Patterns and Coordinations: Fast and Enhanced Representations of Verbs and Adjectives
State-of-the-art word embeddings, which are often trained on bag-of-words (BOW) con- texts, provide a high quality representation of aspects of the semantics of nouns. However, their quality decreases substantially for …...
Take and Took, Gaggle and Goose, Book and Read: Evaluating the Utility of Vector Differences for Lexical Relation Learning
Recent work has shown that simple vector subtraction over word embeddings is surpris- ingly effective at capturing different lexical relations, despite lacking explicit supervision. Prior work has evaluated this intriguing …...
The Role of Context Types and Dimensionality in Learning Word Embeddings
We provide the first extensive evaluation of how using different types of context to learn skip-gram word embeddings affects perfor- mance on a wide range of intrinsic and ex- trinsic …...
Tweester at SemEval-2016 Task 4: Sentiment Analysis in Twitter Using Semantic-Affective Model Adaptation
We describe our submission to SemEval2016 Task 4: Sentiment Analysis in Twitter. The proposed system ranked first for the sub- task B. Our system comprises of multiple in- dependent models …...
Twitter as a Lifeline: Human-annotated Twitter Corpora for NLP of Crisis-related Messages
AbstractMicroblogging platforms such as Twitter provide active communication channels during mass convergence and emergency events such as earthquakes, typhoons. During the sudden onset of a crisis situation, affected people post …...
UNBNLP at SemEval-2016 Task 1: Semantic Textual Similarity: A Unified Framework for Semantic Processing and Evaluation
In this paper we consider several approaches to predicting semantic textual similarity us- ing word embeddings, as well as methods for forming embeddings for larger units of text. We compare …...
UniPI at SemEval-2016 Task 4: Convolutional Neural Networks for Sentiment Classification
The paper describes our submission to the task on Sentiment Analysis on Twitter at SemEval 2016. The approach is based on a Deep Learning architecture using convolu- tional neural networks. …...
Unsupervised Text Segmentation Using Semantic Relatedness Graphs
Segmenting text into semantically coher- ent fragments improves readability of text and facilitates tasks like text summariza- tion and passage retrieval. In this pa- per, we present a novel unsupervised …...
Word Embedding Evaluation and Combination
AbstractWord embeddings have been successfully used in several natural language processing tasks (NLP) and speech processing. Different approaches have been introduced to calculate word embeddings through neural networks. In the …...
Word Embeddings, Analogies, and Machine Learning: Beyond king - man + woman = queen
AbstractSolving word analogies became one of the most popular benchmarks for word embeddings on the assumption that linear relations between word pairs (such as king:man :: woman:queen) are indicative of …...
Adapting Topic Models using Lexical Associations with Tree Priors
AbstractModels work best when they are optimized taking into account the evaluation criteria that people care about. For topic models, people often care about interpretability, which can be approximated using …...
Adversarial Training for Unsupervised Bilingual Lexicon Induction
AbstractWord embeddings are well known to capture linguistic regularities of the language on which they are trained. Researchers also observe that these regularities can transfer across languages. However, previous endeavors …...
An Artificial Language Evaluation of Distributional Semantic Models
AbstractRecent studies of distributional semantic models have set up a competition between word embeddings obtained from predictive neural networks and word vectors obtained from abstractive count-based models. This paper is …...
An Unsupervised Neural Attention Model for Aspect Extraction
AbstractAspect extraction is an important and challenging task in aspect-based sentiment analysis. Existing works tend to apply variants of topic models on this task. While fairly successful, these methods usually …...
Analyzing Semantic Change in Japanese Loanwords
AbstractWe analyze semantic changes in loanwords from English that are used in Japanese (Japanese loanwords). Specifically, we create word embeddings of English and Japanese and map the Japanese embeddings into …...
BUSEM at SemEval-2017 Task 4A Sentiment Analysis with Word Embedding and Long Short Term Memory RNN Approaches
AbstractThis paper describes our approach for SemEval-2017 Task 4: Sentiment Analysis in Twitter. We have participated in Subtask A: Message Polarity Classification subtask and developed two systems. The first system …...
Cross-domain Semantic Parsing via Paraphrasing
AbstractExisting studies on semantic parsing mainly focus on the in-domain setting. We formulate cross-domain semantic parsing as a domain adaptation problem: train a semantic parser on some source domains and …...
Cross-Lingual Induction and Transfer of Verb Classes Based on Word Vector Space Specialisation
AbstractExisting approaches to automatic VerbNet-style verb classification are heavily dependent on feature engineering and therefore limited to languages with mature NLP pipelines. In this work, we propose a novel cross-lingual …...
DataStories at SemEval-2017 Task 4: Deep LSTM with Attention for Message-level and Topic-based Sentiment Analysis
AbstractIn this paper we present two deep-learning systems that competed at SemEval-2017 Task 4 “Sentiment Analysis in Twitter”. We participated in all subtasks for English tweets, involving message-level and topic-based …...
Detecting Metaphorical Phrases in the Polish Language
AbstractIn this paper we describe experiments with automated detection of metaphors in the Polish language. We focus our analysis on noun phrases composed of an adjective and a noun, and …...
Determining Gains Acquired from Word Embedding Quantitatively Using Discrete Distribution Clustering
AbstractWord embeddings have become widely-used in document analysis. While a large number of models for mapping words to vector spaces have been developed, it remains undetermined how much net gain …...
Dict2vec : Learning Word Embeddings using Lexical Dictionaries
AbstractLearning word embeddings on large unlabeled corpus has been shown to be successful in improving many natural language tasks. The most efficient and popular approaches learn or retrofit such representations …...
Distinguishing Japanese Non-standard Usages from Standard Ones
AbstractWe focus on non-standard usages of common words on social media. In the context of social media, words sometimes have other usages that are totally different from their original. In …...
Embedding Words and Senses Together via Joint Knowledge-Enhanced Training
AbstractWord embeddings are widely used in Natural Language Processing, mainly due to their success in capturing semantic information from massive corpora. However, their creation process does not allow the different …...
Entity Linking for Queries by Searching Wikipedia Sentences
AbstractWe present a simple yet effective approach for linking entities in queries. The key idea is to search sentences similar to a query from Wikipedia articles and directly use the …...
Event extraction from Twitter using Non-Parametric Bayesian Mixture Model with Word Embeddings
AbstractTo extract structured representations of newsworthy events from Twitter, unsupervised models typically assume that tweets involving the same named entities and expressed using similar words are likely to belong to …...
Exploring Vector Spaces for Semantic Relations
AbstractWord embeddings are used with success for a variety of tasks involving lexical semantic similarities between individual words. Using unsupervised methods and just cosine similarity, encouraging results were obtained for …...
FA3L at SemEval-2017 Task 3: A ThRee Embeddings Recurrent Neural Network for Question Answering
AbstractIn this paper we present ThReeNN, a model for Community Question Answering, Task 3, of SemEval-2017. The proposed model exploits both syntactic and semantic information to build a single and …...
funSentiment at SemEval-2017 Task 4: Topic-Based Message Sentiment Classification by Exploiting Word Embeddings, Text Features and Target Contexts
AbstractThis paper describes the approach we used for SemEval-2017 Task 4: Sentiment Analysis in Twitter. Topic-based (target-dependent) sentiment analysis has become attractive and been used in some applications recently, but …...
Identifying attack and support argumentative relations using deep learning
AbstractWe propose a deep learning architecture to capture argumentative relations of attack and support from one piece of text to another, of the kind that naturally occur in a debate. …...
IITPB at SemEval-2017 Task 5: Sentiment Prediction in Financial Text
AbstractThis paper reports team IITPB’s participation in the SemEval 2017 Task 5 on ‘Fine-grained sentiment analysis on financial microblogs and news’. We developed 2 systems for the two tracks. One …...
Joint Embeddings of Chinese Words, Characters, and Fine-grained Subcharacter Components
AbstractWord embeddings have attracted much attention recently. Different from alphabetic writing systems, Chinese characters are often composed of subcharacter components which are also semantically informative. In this work, we propose …...
L2F/INESC-ID at SemEval-2017 Tasks 1 and 2: Lexical and semantic features in word and textual similarity
AbstractThis paper describes our approach to the SemEval-2017 “Semantic Textual Similarity” and “Multilingual Word Similarity” tasks. In the former, we test our approach in both English and Spanish, and use …...
Learning Compositionality Functions on Word Embeddings for Modelling Attribute Meaning in Adjective-Noun Phrases
AbstractWord embeddings have been shown to be highly effective in a variety of lexical semantic tasks. They tend to capture meaningful relational similarities between individual words, at the expense of …...
Monolingual Embeddings for Low Resourced Neural Machine Translation
AbstractNeural machine translation (NMT) is the state of the art for machine translation, and it shows the best performance when there is a considerable amount of data available. When only …...
Multimodal Word Distributions
AbstractWord embeddings provide point representations of words containing useful semantic information. We introduce multimodal word distributions formed from Gaussian mixtures, for multiple word meanings, entailment, and rich uncertainty information. To …...
NILC-USP at SemEval-2017 Task 4: A Multi-view Ensemble for Twitter Sentiment Analysis
AbstractThis paper describes our multi-view ensemble approach to SemEval-2017 Task 4 on Sentiment Analysis in Twitter, specifically, the Message Polarity Classification subtask for English (subtask A). Our system is a …...
PKU_ICL at SemEval-2017 Task 10: Keyphrase Extraction with Model Ensemble and External Knowledge
AbstractThis paper presents a system that participated in SemEval 2017 Task 10 (subtask A and subtask B): Extracting Keyphrases and Relations from Scientific Publications (Augenstein et al., 2017). Our proposed …...
QLUT at SemEval-2017 Task 1: Semantic Textual Similarity Based on Word Embeddings
AbstractThis paper reports the details of our submissions in the task 1 of SemEval 2017. This task aims at assessing the semantic textual similarity of two sentences or texts. We …...
QLUT at SemEval-2017 Task 2: Word Similarity Based on Word Embedding and Knowledge Base
AbstractThis paper shows the details of our system submissions in the task 2 of SemEval 2017. We take part in the subtask 1 of this task, which is an English …...
Refining Word Embeddings for Sentiment Analysis
AbstractWord embeddings that can capture semantic and syntactic information from contexts have been extensively used for various natural language processing tasks. However, existing methods for learning context-based word embeddings typically …...
SemEval-2017 Task 2: Multilingual and Cross-lingual Semantic Word Similarity
AbstractThis paper introduces a new task on Multilingual and Cross-lingual SemanticThis paper introduces a new task on Multilingual and Cross-lingual Semantic Word Similarity which measures the semantic similarity of word …...
SZTE-NLP at SemEval-2017 Task 10: A High Precision Sequence Model for Keyphrase Extraction Utilizing Sparse Coding for Feature Generation
AbstractIn this paper we introduce our system participating at the 2017 SemEval shared task on keyphrase extraction from scientific documents. We aimed at the creation of a keyphrase extraction approach …...
UINSUSKA-TiTech at SemEval-2017 Task 3: Exploiting Word Importance Levels for Similarity Features for CQA
AbstractThe majority of core techniques to solve many problems in Community Question Answering (CQA) task rely on similarity computation. This work focuses on similarity between two sentences (or questions in …...
VecShare: A Framework for Sharing Word Representation Vectors
AbstractMany Natural Language Processing (NLP) models rely on distributed vector representations of words. Because the process of training word vectors can require large amounts of data and computation, NLP researchers …...
Weakly Supervised Cross-Lingual Named Entity Recognition via Effective Annotation and Representation Projection
AbstractThe state-of-the-art named entity recognition (NER) systems are supervised machine learning models that require large amounts of manually annotated data to achieve high accuracy. However, annotating NER data by human …...
Word Embeddings as Features for Supervised Coreference Resolution
AbstractA common reason for errors in coreference resolution is the lack of semantic information to help determine the compatibility between mentions referring to the same entity. Distributed representations, which have …...
Word Embeddings for Multi-label Document Classification
AbstractIn this paper, we analyze and evaluate word embeddings for representation of longer texts in the multi-label classification scenario. The embeddings are used in three convolutional neural network topologies. The …...
Word Re-Embedding via Manifold Dimensionality Retention
AbstractWord embeddings seek to recover a Euclidean metric space by mapping words into vectors, starting from words co-occurrences in a corpus. Word embeddings may underestimate the similarity between nearby words, …...
#TeamINF at SemEval-2018 Task 2: Emoji Prediction in Tweets
AbstractIn this paper, we describe a methodology to predict emoji in tweets. Our approach is based on the classic bag-of-words model in conjunction with word embeddings. The used classification algorithm …...
300-sparsans at SemEval-2018 Task 9: Hypernymy as interaction of sparse attributes
AbstractThis paper describes 300-sparsians’s participation in SemEval-2018 Task 9: Hypernym Discovery, with a system based on sparse coding and a formal concept hierarchy obtained from word embeddings. Our system took …...
A Corpus to Learn Refer-to-as Relations for Nominals
Continuous representations for words or phrases, trained on large unlabeled corpora are proved very useful for many natural language processing tasks. While these vector representations capture many fine-grained syntactic and …...
A Multi-Domain Framework for Textual Similarity. A Case Study on Question-to-Question and Question-Answering Similarity Tasks
Community Question Answering (CQA) websites have become a very popular and useful source of information, which helps users to find out answers to their corresponding questions. On one hand, if …...
A New Approach to Animacy Detection
AbstractAnimacy is a necessary property for a referent to be an agent, and thus animacy detection is useful for a variety of natural language processing tasks, including word sense disambiguation, …...
A supervised approach to taxonomy extraction using word embeddings
Large collections of texts are commonly generated by large organizations and making sense of these collections of texts is a significant challenge. One method for handling this is to organize …...
Aff2Vec: Affect–Enriched Distributional Word Representations
AbstractHuman communication includes information, opinions and reactions. Reactions are often captured by the affective-messages in written as well as verbal communications. While there has been work in affect modeling and …...
All-words Word Sense Disambiguation Using Concept Embeddings
All-words word sense disambiguation (all-words WSD) is the task of identifying the senses of all words in a document. Since the sense of a word depends on the context, such …...
Amobee at SemEval-2018 Task 1: GRU Neural Network with a CNN Attention Mechanism for Sentiment Classification
AbstractThis paper describes the participation of Amobee in the shared sentiment analysis task at SemEval 2018. We participated in all the English sub-tasks and the Spanish valence tasks. Our system …...
Cluster Labeling by Word Embeddings and WordNet's Hypernymy
AbstractCluster labeling is the assignment of representative labels to clusters obtained from the organization of a document collection. Once assigned, the labels can play an important role in applications such …...
Construction of a Japanese Word Similarity Dataset
An evaluation of distributed word representation is generally conducted using a word similarity task and/or a word analogy task. There are many datasets readily available for these tasks in English. …...
Continuous Word Embedding Fusion via Spectral Decomposition
AbstractWord embeddings have become a mainstream tool in statistical natural language processing. Practitioners often use pre-trained word vectors, which were trained on large generic text corpora, and which are readily …...
DL Team at SemEval-2018 Task 1: Tweet Affect Detection using Sentiment Lexicons and Embeddings
AbstractThe paper describes our approach for SemEval-2018 Task 1: Affect Detection in Tweets. We perform experiments with manually compelled sentiment lexicons and word embeddings. We test their performance on twitter …...
EMA at SemEval-2018 Task 1: Emotion Mining for Arabic
AbstractWhile significant progress has been achieved for Opinion Mining in Arabic (OMA), very limited efforts have been put towards the task of Emotion mining in Arabic. In fact, businesses are …...
Enhancing General Sentiment Lexicons for Domain-Specific Use
AbstractLexicon based methods for sentiment analysis rely on high quality polarity lexicons. In recent years, automatic methods for inducing lexicons have increased the viability of lexicon based methods for polarity …...
Evaluating the Stability of Embedding-based Word Similarities
AbstractWord embeddings are increasingly being used as a tool to study word associations in specific corpora. However, it is unclear whether such embeddings reflect enduring properties of language or if …...
Exploring Word Sense Disambiguation Abilities of Neural Machine Translation Systems (Non-archival Extended Abstract)
Neural machine translation systems have been shown to achieve state-of-the-art translation per- formance for many language pairs. In order to produce a correct translation, MT systems must learn how to …...
Finding Convincing Arguments Using Scalable Bayesian Preference Learning
AbstractWe introduce a scalable Bayesian preference learning method for identifying convincing arguments in the absence of gold-standard ratings or rankings. In contrast to previous work, we avoid the need for …...
Finely Tuned, 2 Billion Token Based Word Embeddings for Portuguese
A distributional semantics model — also known as word embeddings — is a major asset for any language as the research results reported in the literature have consistently shown that …...
From Text to Lexicon: Bridging the Gap between Word Embeddings and Lexical Resources
AbstractDistributional word representations (often referred to as word embeddings) are omnipresent in modern NLP. Early work has focused on building representations for word types, and recent studies show that lemmatization …...
Igevorse at SemEval-2018 Task 10: Exploring an Impact of Word Embeddings Concatenation for Capturing Discriminative Attributes
AbstractThis paper presents a comparison of several approaches for capturing discriminative attributes and considers an impact of concatenation of several word embeddings of different nature on the classification performance. A …...
Joint Learning from Labeled and Unlabeled Data for Information Retrieval
AbstractRecently, a significant number of studies have focused on neural information retrieval (IR) models. One category of works use unlabeled data to train general word embeddings based on term proximity, …...
Joint Learning of Sense and Word Embeddings
Methods for learning lower-dimensional representations (embeddings) of words using unlabelled data have received a renewed interested due to their myriad success in various Natural Language Processing (NLP) tasks. However, despite …...
Learning Neural Word Salience Scores
AbstractMeasuring the salience of a word is an essential step in numerous NLP tasks. Heuristic approaches such as tfidf have been used so far to estimate the salience of words. …...
Learning Representations Specialized in Spatial Knowledge: Leveraging Language and Vision
AbstractSpatial understanding is crucial in many real-world problems, yet little progress has been made towards building representations that capture spatial knowledge. Here, we move one step forward in this direction …...
Learning Visually Grounded Sentence Representations
AbstractWe investigate grounded sentence representations, where we train a sentence encoder to predict the image features of a given caption—i.e., we try to “imagine” how a sentence would be depicted …...
LightRel at SemEval-2018 Task 7: Lightweight and Fast Relation Classification
AbstractWe present LightRel, a lightweight and fast relation classifier. Our goal is to develop a high baseline for different relation extraction tasks. By defining only very few data-internal, word-level features …...
Linear Algebraic Structure of Word Senses, with Applications to Polysemy
AbstractWord embeddings are ubiquitous in NLP and information retrieval, but it is unclear what they represent when the word is polysemous. Here it is shown that multiple word senses reside …...
LIS at SemEval-2018 Task 2: Mixing Word Embeddings and Bag of Features for Multilingual Emoji Prediction
AbstractIn this paper we present the system submitted to the SemEval2018 task2 : Multilingual Emoji Prediction. Our system approaches both languages as being equal by first; considering word embeddings associated …...
MIT-MEDG at SemEval-2018 Task 7: Semantic Relation Classification via Convolution Neural Network
AbstractSemEval 2018 Task 7 tasked participants to build a system to classify two entities within a sentence into one of the 6 possible relation types. We tested 3 classes of …...
Multilingual Dependency Parsing for Low-Resource Languages: Case Studies on North Saami and Komi-Zyrian
The paper presents a method for parsing low-resource languages with very small training corpora using multilingual word embeddings and annotated corpora of larger languages. The study demonstrates that specific language …...
Neural Activation Semantic Models: Computational lexical semantic models of localized neural activations
AbstractNeural activation models have been proposed in the literature that use a set of example words for which fMRI measurements are available in order to find a mapping between word …...
NEUROSENT-PDI at SemEval-2018 Task 3: Understanding Irony in Social Networks Through a Multi-Domain Sentiment Model
AbstractThis paper describes the NeuroSent system that participated in SemEval 2018 Task 3. Our system takes a supervised approach that builds on neural networks and word embeddings. Word embeddings were …...
NEUROSENT-PDI at SemEval-2018 Task 7: Discovering Textual Relations With a Neural Network Model
AbstractDiscovering semantic relations within textual documents is a timely topic worthy of investigation. Natural language processing strategies are generally used for linking chunks of text in order to extract information …...
On the Vector Representation of Utterances in Dialogue Context
In recent years, the representation of words as vectors in a vector space, also known as word embeddings, has achieved a high degree of attention in the research community and …...
Portable, layer-wise task performance monitoring for NLP models
AbstractThere is a long-standing interest in understanding the internal behavior of neural networks. Deep neural architectures for natural language processing (NLP) are often accompanied by explanations for their effectiveness, from …...
Querying Word Embeddings for Similarity and Relatedness
AbstractWord embeddings obtained from neural network models such as Word2Vec Skipgram have become popular representations of word meaning and have been evaluated on a variety of word similarity and relatedness …...
Relation Induction in Word Embeddings Revisited
AbstractGiven a set of instances of some relation, the relation induction task is to predict which other word pairs are likely to be related in the same way. While it …...
SeVeN: Augmenting Word Embeddings with Unsupervised Relation Vectors
AbstractWe present SeVeN (Semantic Vector Networks), a hybrid resource that encodes relationships between words in the form of a graph. Different from traditional semantic networks, these relations are represented as …...
Summarization Evaluation in the Absence of Human Model Summaries Using the Compositionality of Word Embeddings
AbstractWe present a new summary evaluation approach that does not require human model summaries. Our approach exploits the compositional capabilities of corpus-based and lexical resource-based word embeddings to develop the …...
The German Reference Corpus DeReKo: New Developments – New Opportunities
This paper discusses current trends in DeReKo, the German Reference Corpus, concerning legal issues around the recent German copyright reform with positive implications for corpus building and corpus linguistics in …...
Tweety at SemEval-2018 Task 2: Predicting Emojis using Hierarchical Attention Neural Networks and Support Vector Machine
AbstractWe present the system built for SemEval-2018 Task 2 on Emoji Prediction. Although Twitter messages are very short we managed to design a wide variety of features: textual, semantic, sentiment, …...
UNBNLP at SemEval-2018 Task 10: Evaluating unsupervised approaches to capturing discriminative attributes
AbstractIn this paper we present three unsupervised models for capturing discriminative attributes based on information from word embeddings, WordNet, and sentence-level word co-occurrence frequency. We show that, of these approaches, …...
Uncovering Divergent Linguistic Information in Word Embeddings with Lessons for Intrinsic and Extrinsic Evaluation
AbstractFollowing the recent success of word embeddings, it has been argued that there is no such thing as an ideal representation for words, as different models tend to capture divergent …...
Unsupervised Induction of Linguistic Categories with Records of Reading, Speaking, and Writing
AbstractWhen learning POS taggers and syntactic chunkers for low-resource languages, different resources may be available, and often all we have is a small tag dictionary, motivating type-constrained unsupervised induction. Even …...
Unsupervised Mining of Analogical Frames by Constraint Satisfaction
AbstractIt has been demonstrated that vector-based representations of words trained on large text corpora encode linguistic regularities that may be exploited via the use of vector space arithmetic. This capability …...
UWB at SemEval-2018 Task 1: Emotion Intensity Detection in Tweets
AbstractThis paper describes our system created for the SemEval-2018 Task 1: Affect in Tweets (AIT-2018). We participated in both the regression and the ordinal classification subtasks for emotion intensity detection …...
Why does PairDiff work? - A Mathematical Analysis of Bilinear Relational Compositional Operators for Analogy Detection
AbstractRepresenting the semantic relations that exist between two given words (or entities) is an important first step in a wide-range of NLP applications such as analogical reasoning, knowledge base completion …...
Word Embedding Approach for Synonym Extraction of Multi-Word Terms
The acquisition of synonyms and quasi-synonyms of multi-word terms (MWTs) is a relatively new and under represented topic of research. However, dealing with MWT synonyms and semantically related terms is …...
Better Word Embeddings by Disentangling Contextual n-Gram Information
AbstractPre-trained word vectors are ubiquitous in Natural Language Processing applications. In this paper, we show how training word embeddings jointly with bigram and even trigram embeddings, results in improved unigram …...
Black is to Criminal as Caucasian is to Police: Detecting and Removing Multiclass Bias in Word Embeddings
AbstractOnline texts - across genres, registers, domains, and styles - are riddled with human stereotypes, expressed in overt or subtle ways. Word embeddings, trained on these texts, perpetuate and amplify …...
CogniVal: A Framework for Cognitive Word Embedding Evaluation
AbstractAn interesting method of evaluating word representations is by how much they reflect the semantic representations in the human brain. However, most, if not all, previous works only focus on …...
Do Nuclear Submarines Have Nuclear Captains? A Challenge Dataset for Commonsense Reasoning over Adjectives and Objects
AbstractHow do adjectives project from a noun to its parts? If a motorcycle is red, are its wheels red? Is a nuclear submarine’s captain nuclear? These questions are easy for …...
EMOMINER at SemEval-2019 Task 3: A Stacked BiLSTM Architecture for Contextual Emotion Detection in Text
AbstractThis paper describes our participation in the SemEval 2019 Task 3 - Contextual Emotion Detection in Text. This task aims to identify emotions, viz. happiness, anger, sadness in the context …...
Enhancing Unsupervised Sentence Similarity Methods with Deep Contextualised Word Representations
AbstractCalculating Semantic Textual Similarity (STS) plays a significant role in many applications such as question answering, document summarisation, information retrieval and information extraction. All modern state of the art STS …...
Examining Gender Bias in Languages with Grammatical Gender
AbstractRecent studies have shown that word embeddings exhibit gender bias inherited from the training corpora. However, most studies to date have focused on quantifying and mitigating such bias only in …...
Exploring Numeracy in Word Embeddings
AbstractWord embeddings are now pervasive across NLP subfields as the de-facto method of forming text representataions. In this work, we show that existing embedding models are inadequate at constructing representations …...
Feature-Dependent Confusion Matrices for Low-Resource NER Labeling with Noisy Labels
AbstractIn low-resource settings, the performance of supervised labeling models can be improved with automatically annotated or distantly supervised data, which is cheap to create but often noisy. Previous works have …...
Gated Embeddings in End-to-End Speech Recognition for Conversational-Context Fusion
AbstractWe present a novel conversational-context aware end-to-end speech recognizer based on a gated neural network that incorporates conversational-context/word/speech embeddings. Unlike conventional speech recognition models, our model learns longer conversational-context information …...
Generating Timelines by Modeling Semantic Change
AbstractThough languages can evolve slowly, they can also react strongly to dramatic world events. By studying the connection between words and events, it is possible to identify which events change …...
HATEMINER at SemEval-2019 Task 5: Hate speech detection against Immigrants and Women in Twitter using a Multinomial Naive Bayes Classifier
AbstractThis paper describes our participation in the SemEval 2019 Task 5 - Multilingual Detection of Hate. This task aims to identify hate speech against two specific targets, immigrants and women. …...
HHMM at SemEval-2019 Task 2: Unsupervised Frame Induction using Contextualized Word Embeddings
AbstractWe present our system for semantic frame induction that showed the best performance in Subtask B.1 and finished as the runner-up in Subtask A of the SemEval 2019 Task 2 …...
Hierarchical Meta-Embeddings for Code-Switching Named Entity Recognition
AbstractIn countries that speak multiple main languages, mixing up different languages within a conversation is commonly called code-switching. Previous works addressing this challenge mainly focused on word-level aspects such as …...
How Does Grammatical Gender Affect Noun Representations in Gender-Marking Languages?
AbstractMany natural languages assign grammatical gender also to inanimate nouns in the language. In such languages, words that relate to the gender-marked nouns are inflected to agree with the noun’s …...
Incorporating Syntactic and Semantic Information in Word Embeddings using Graph Convolutional Networks
AbstractWord embeddings have been widely adopted across several NLP applications. Most existing word embedding methods utilize sequential context of a word to learn its embedding. While there have been some …...
Integrating Semantic Knowledge to Tackle Zero-shot Text Classification
AbstractInsufficient or even unavailable training data of emerging classes is a big challenge of many classification tasks, including text classification. Recognising text documents of classes that have never been seen …...
It’s All in the Name: Mitigating Gender Bias with Name-Based Counterfactual Data Substitution
AbstractThis paper treats gender bias latent in word embeddings. Previous mitigation attempts rely on the operationalisation of gender bias as a projection over a linear subspace. An alternative approach is …...
Know-Center at SemEval-2019 Task 5: Multilingual Hate Speech Detection on Twitter using CNNs
AbstractThis paper presents the Know-Center system submitted for task 5 of the SemEval-2019 workshop. Given a Twitter message in either English or Spanish, the task is to first detect whether …...
Leveraging Just a Few Keywords for Fine-Grained Aspect Detection Through Weakly Supervised Co-Training
AbstractUser-generated reviews can be decomposed into fine-grained segments (e.g., sentences, clauses), each evaluating a different aspect of the principal entity (e.g., price, quality, appearance). Automatically detecting these aspects can be …...
Misspelling Oblivious Word Embeddings
AbstractIn this paper we present a method to learn word embeddings that are resilient to misspellings. Existing word embeddings have limited applicability to malformed texts, which contain a non-negligible amount …...
Probing for Semantic Classes: Diagnosing the Meaning Content of Word Embeddings
AbstractWord embeddings typically represent different meanings of a word in a single conflated vector. Empirical analysis of embeddings of ambiguous words is currently limited by the small size of manually …...
Putting Words in Context: LSTM Language Models and Lexical Ambiguity
AbstractIn neural network models of language, words are commonly represented using context-invariant representations (word embeddings) which are then put in context in the hidden layers. Since words are often ambiguous, …...
Relational Word Embeddings
AbstractWhile word embeddings have been shown to implicitly encode various forms of attributional knowledge, the extent to which they capture relational information is far more limited. In previous work, this …...
Reliability-aware Dynamic Feature Composition for Name Tagging
AbstractWord embeddings are widely used on a variety of tasks and can substantially improve the performance. However, their quality is not consistent throughout the vocabulary due to the long-tail distribution …...
Self-Knowledge Distillation in Natural Language Processing
AbstractSince deep learning became a key player in natural language processing (NLP), many deep learning models have been showing remarkable performances in a variety of NLP tasks. Such high performance …...
Text Classification with Few Examples using Controlled Generalization
AbstractTraining data for text classification is often limited in practice, especially for applications with many output classes or involving many related classification problems. This means classifiers must generalize from limited …...
Tweaks and Tricks for Word Embedding Disruptions
AbstractWord embeddings are established as very effective models used in several NLP applications. If they differ in their architecture and training process, they often exhibit similar properties and remain vector …...
UPV-28-UNITO at SemEval-2019 Task 7: Exploiting Post’s Nesting and Syntax Information for Rumor Stance Classification
AbstractIn the present paper we describe the UPV-28-UNITO system’s submission to the RumorEval 2019 shared task. The approach we applied for addressing both the subtasks of the contest exploits both …...
VCWE: Visual Character-Enhanced Word Embeddings
AbstractChinese is a logographic writing system, and the shape of Chinese characters contain rich syntactic and semantic information. In this paper, we propose a model to learn Chinese word embeddings …...
A Co-Attentive Cross-Lingual Neural Model for Dialogue Breakdown Detection
AbstractEnsuring smooth communication is essential in a chat-oriented dialogue system, so that a user can obtain meaningful responses through interactions with the system. Most prior work on dialogue research does …...
A Neural Generative Model for Joint Learning Topics and Topic-Specific Word Embeddings
AbstractWe propose a novel generative model to explore both local and global context for joint learning topics and topic-specific word embeddings. In particular, we assume that global latent topics are …...
A Retrofitting Model for Incorporating Semantic Relations into Word Embeddings
AbstractWe present a novel retrofitting model that can leverage relational knowledge available in a knowledge resource to improve word embeddings. The knowledge is captured in terms of relation inequality constraints …...
A Robust Self-Learning Method for Fully Unsupervised Cross-Lingual Mappings of Word Embeddings: Making the Method Robustly Reproducible as Well
AbstractIn this paper, we reproduce the experiments of Artetxe et al. (2018b) regarding the robust self-learning method for fully unsupervised cross-lingual mappings of word embeddings. We show that the reproduction …...
A Simple and Effective Usage of Word Clusters for CBOW Model
AbstractWe propose a simple and effective method for incorporating word clusters into the Continuous Bag-of-Words (CBOW) model. Specifically, we propose to replace infrequent input and output words in CBOW model …...
Adaptive Compression of Word Embeddings
AbstractDistributed representations of words have been an indispensable component for natural language processing (NLP) tasks. However, the large memory footprint of word embeddings makes it challenging to deploy NLP models …...
All That Glitters is Not Gold: A Gold Standard of Adjective-Noun Collocations for German
AbstractIn this paper we present the GerCo dataset of adjective-noun collocations for German, such as alter Freund ‘old friend’ and tiefe Liebe ‘deep love’. The annotation has been performed by …...
An Empirical Study of the Downstream Reliability of Pre-Trained Word Embeddings
AbstractWhile pre-trained word embeddings have been shown to improve the performance of downstream tasks, many questions remain regarding their reliability: Do the same pre-trained word embeddings result in the best …...
Analogies minus analogy test: measuring regularities in word embeddings
AbstractVector space models of words have long been claimed to capture linguistic regularities as simple vector translations, but problems have been raised with this claim. We decompose and empirically analyze …...
Analysing Word Representation from the Input and Output Embeddings in Neural Network Language Models
AbstractResearchers have recently demonstrated that tying the neural weights between the input look-up table and the output classification layer can improve training and lower perplexity on sequence learning tasks such …...
Augmenting NLP models using Latent Feature Interpolations
AbstractModels with a large number of parameters are prone to over-fitting and often fail to capture the underlying input distribution. We introduce Emix, a data augmentation method that uses interpolations …...
Autoencoding Improves Pre-trained Word Embeddings
AbstractPrior works investigating the geometry of pre-trained word embeddings have shown that word embeddings to be distributed in a narrow cone and by centering and projecting using principal component vectors …...
comp-syn: Perceptually Grounded Word Embeddings with Color
AbstractPopular approaches to natural language processing create word embeddings based on textual co-occurrence patterns, but often ignore embodied, sensory aspects of language. Here, we introduce the Python package comp-syn, which …...
Composing Word Vectors for Japanese Compound Words Using Bilingual Word Embeddings
This study conducted an experiment to com- pare the word embeddings of a compound word and a word in Japanese on the same vec- tor space using bilingual word embeddings. …...
Compositional Demographic Word Embeddings
AbstractWord embeddings are usually derived from corpora containing text from many individuals, thus leading to general purpose representations rather than individually personalized representations. While personalized embeddings can be useful to …...
Cross-lingual Annotation Projection in Legal Texts
AbstractWe study annotation projection in text classification problems where source documents are published in multiple languages and may not be an exact translation of one another. In particular, we focus …...
DCC-Uchile at SemEval-2020 Task 1: Temporal Referencing Word Embeddings
AbstractWe present a system for the task of unsupervised lexical change detection: given a target word and two corpora spanning different periods of time, automatically detects whether the word has …...
Decoding Brain Activity Associated with Literal and Metaphoric Sentence Comprehension Using Distributional Semantic Models
AbstractRecent years have seen a growing interest within the natural language processing (NLP) community in evaluating the ability of semantic models to capture human meaning representation in the brain. Existing …...
Deconstructing word embedding algorithms
AbstractWord embeddings are reliable feature representations of words used to obtain high quality results for various NLP applications. Uncontextualized word embeddings are used in many NLP tasks today, especially in …...
Deduplication of Scholarly Documents using Locality Sensitive Hashing and Word Embeddings
AbstractDeduplication is the task of identifying near and exact duplicate data items in a collection. In this paper, we present a novel method for deduplication of scholarly documents. We develop …...
Disentangling dialects: a neural approach to Indo-Aryan historical phonology and subgrouping
AbstractThis paper seeks to uncover patterns of sound change across Indo-Aryan languages using an LSTM encoder-decoder architecture. We augment our models with embeddings represent-ing language ID, part of speech, and …...
Do Word Embeddings Capture Spelling Variation?
AbstractAnalyses of word embeddings have primarily focused on semantic and syntactic properties. However, word embeddings have the potential to encode other properties as well. In this paper, we propose a …...
Embarrassingly Simple Unsupervised Aspect Extraction
AbstractWe present a simple but effective method for aspect identification in sentiment analysis. Our unsupervised method only requires word embeddings and a POS tagger, and is therefore straightforward to apply …...
Embedding Space Correlation as a Measure of Domain Similarity
AbstractPrior work has determined domain similarity using text-based features of a corpus. However, when using pre-trained word embeddings, the underlying text corpus might not be accessible anymore. Therefore, we propose …...
Embeddings for Named Entity Recognition in Geoscience Portuguese Literature
AbstractThis work focuses on Portuguese Named Entity Recognition (NER) in the Geology domain. The only domain-specific dataset in the Portuguese language annotated for NER is the GeoCorpus. Our approach relies …...
ENGLAWI: From Human- to Machine-Readable Wiktionary
AbstractThis paper introduces ENGLAWI, a large, versatile, XML-encoded machine-readable dictionary extracted from Wiktionary. ENGLAWI contains 752,769 articles encoding the full body of information included in Wiktionary: simple words, compounds and …...
Expert Concept-Modeling Ground Truth Construction for Word Embeddings Evaluation in Concept-Focused Domains
AbstractWe present a novel, domain expert-controlled, replicable procedure for the construction of concept-modeling ground truths with the aim of evaluating the application of word embeddings. In particular, our method is …...
Facilitating Corpus Usage: Making Icelandic Corpora More Accessible for Researchers and Language Users
AbstractWe introduce an array of open and accessible tools to facilitate the use of the Icelandic Gigaword Corpus, in the field of Natural Language Processing as well as for students, …...
From Language to Language-ish: How Brain-Like is an LSTM’s Representation of Nonsensical Language Stimuli?
AbstractThe representations generated by many models of language (word embeddings, recurrent neural networks and transformers) correlate to brain activity recorded while people read. However, these decoding results are usually based …...
Generation and Evaluation of Concept Embeddings Via Fine-Tuning Using Automatically Tagged Corpus
Word embeddings are used in various fields of natural language processing. The use of word embeddings and concept or word sense em- beddings demonstrated effectiveness in many tasks, such as …...
Go Simple and Pre-Train on Domain-Specific Corpora: On the Role of Training Data for Text Classification
AbstractPre-trained language models provide the foundations for state-of-the-art performance across a wide range of natural language processing tasks, including text classification. However, most classification datasets assume a large amount labeled …...
He said “who’s gonna take care of your children when you are at ACL?”: Reported Sexist Acts are Not Sexist
AbstractIn a context of offensive content mediation on social media now regulated by European laws, it is important not only to be able to automatically detect sexist content but also …...
Improving Word Embedding Factorization for Compression Using Distilled Nonlinear Neural Decomposition
AbstractWord-embeddings are vital components of Natural Language Processing (NLP) models and have been extensively explored. However, they consume a lot of memory which poses a challenge for edge deployment. Embedding …...
In Neural Machine Translation, What Does Transfer Learning Transfer?
AbstractTransfer learning improves quality for low-resource machine translation, but it is unclear what exactly it transfers. We perform several ablation studies that limit information transfer, then measure the quality impact …...
IndicNLPSuite: Monolingual Corpora, Evaluation Benchmarks and Pre-trained Multilingual Language Models for Indian Languages
AbstractIn this paper, we introduce NLP resources for 11 major Indian languages from two major language families. These resources include: (a) large-scale sentence-level monolingual corpora, (b) pre-trained word embeddings, (c) …...
Learning Efficient Task-Specific Meta-Embeddings with Word Prisms
AbstractWord embeddings are trained to predict word cooccurrence statistics, which leads them to possess different lexical properties (syntactic, semantic, etc.) depending on the notion of context defined at training time. …...
Massive vs. Curated Embeddings for Low-Resourced Languages: the Case of Yorùbá and Twi
AbstractThe success of several architectures to learn semantic representations from unannotated text and the availability of these kind of texts in online multilingual resources such as Wikipedia has facilitated the …...
Morphology-rich Alphasyllabary Embeddings
AbstractWord embeddings have been successfully trained in many languages. However, both intrinsic and extrinsic metrics are variable across languages, especially for languages that depart significantly from English in morphology and …...
Multi-lingual Mathematical Word Problem Generation using Long Short Term Memory Networks with Enhanced Input Features
AbstractA Mathematical Word Problem (MWP) differs from a general textual representation due to the fact that it is comprised of numerical quantities and units, in addition to text. Therefore, MWP …...
Multilingual Culture-Independent Word Analogy Datasets
AbstractIn text processing, deep neural networks mostly use word embeddings as an input. Embeddings have to ensure that relations between words are reflected through distances in a high-dimensional numeric space. …...
Neural Machine Translation from Historical Japanese to Contemporary Japanese Using Diachronically Domain-Adapted Word Embeddings
This paper describes the first trial of neu- ral machine translation (NMT) from historical Japanese to contemporary Japanese. To com- pensate for the lack of parallel data, we used pre-trained …...
Neural-DINF: A Neural Network based Framework for Measuring Document Influence
AbstractMeasuring the scholarly impact of a document without citations is an important and challenging problem. Existing approaches such as Document Influence Model (DIM) are based on dynamic topic models, which …...
Neutralizing Gender Bias in Word Embeddings with Latent Disentanglement and Counterfactual Generation
AbstractRecent research demonstrates that word embeddings, trained on the human-generated corpus, have strong gender biases in embedding spaces, and these biases can result in the discriminative results from the various …...
Null It Out: Guarding Protected Attributes by Iterative Nullspace Projection
AbstractThe ability to control for the kinds of information encoded in neural representation has a variety of use cases, especially in light of the challenge of interpreting these models. We …...
Nurse is Closer to Woman than Surgeon? Mitigating Gender-Biased Proximities in Word Embeddings
AbstractWord embeddings are the standard model for semantic and syntactic representations of words. Unfortunately, these models have been shown to exhibit undesirable word associations resulting from gender, racial, and religious …...
Offensive Language Detection Using Brown Clustering
AbstractIn this study, we investigate the use of Brown clustering for offensive language detection. Brown clustering has been shown to be of little use when the task involves distinguishing word …...
Robust Backed-off Estimation of Out-of-Vocabulary Embeddings
AbstractOut-of-vocabulary (oov) words cause serious troubles in solving natural language tasks with a neural network. Existing approaches to this problem resort to using subwords, which are shorter and more ambiguous …...
SAPPHIRE: Simple Aligner for Phrasal Paraphrase with Hierarchical Representation
AbstractWe present SAPPHIRE, a Simple Aligner for Phrasal Paraphrase with HIerarchical REpresentation. Monolingual phrase alignment is a fundamental problem in natural language understanding and also a crucial technique in various …...
Synthetic Data for English Lexical Normalization: How Close Can We Get to Manually Annotated Data?
AbstractSocial media is a valuable data resource for various natural language processing (NLP) tasks. However, standard NLP tools were often designed with standard texts in mind, and their performance decreases …...
Tiny Word Embeddings Using Globally Informed Reconstruction
AbstractWe reduce the model size of pre-trained word embeddings by a factor of 200 while preserving its quality. Previous studies in this direction created a smaller word embedding model by …...
Tired of Topic Models? Clusters of Pretrained Word Embeddings Make for Fast and Good Topics too!
AbstractTopic models are a useful analysis tool to uncover the underlying themes within document collections. The dominant approach is to use probabilistic topic models that posit a generative story, but …...
Topic Modeling in Embedding Spaces
AbstractTopic modeling analyzes documents to learn meaningful patterns of words. However, existing topic models fail to learn interpretable topics when working with large and heavy-tailed vocabularies. To this end, we …...
Towards a Semi-Automatic Detection of Reflexive and Reciprocal Constructions and Their Representation in a Valency Lexicon
AbstractValency lexicons usually describe valency behavior of verbs in non-reflexive and non-reciprocal constructions. However, reflexive and reciprocal constructions are common morphosyntactic forms of verbs. Both of these constructions are characterized …...
UAlberta at SemEval-2020 Task 2: Using Translations to Predict Cross-Lingual Entailment
AbstractWe investigate the hypothesis that translations can be used to identify cross-lingual lexical entailment. We propose novel methods that leverage parallel corpora, word embeddings, and multilingual lexical resources. Our results …...
Unequal Representations: Analyzing Intersectional Biases in Word Embeddings Using Representational Similarity Analysis
AbstractWe present a new approach for detecting human-like social biases in word embeddings using representational similarity analysis. Specifically, we probe contextualized and non-contextualized embeddings for evidence of intersectional biases against …...
Urban Dictionary Embeddings for Slang NLP Applications
AbstractThe choice of the corpus on which word embeddings are trained can have a sizable effect on the learned representations, the types of analyses that can be performed with them, …...
When do Word Embeddings Accurately Reflect Surveys on our Beliefs About People?
AbstractSocial biases are encoded in word embeddings. This presents a unique opportunity to study society historically and at scale, and a unique danger when embeddings are used in downstream applications. …...
Word associations and the distance properties of context-aware word embeddings
AbstractWhat do people know when they know the meaning of words? Word associations have been widely used to tap into lexical repre- sentations and their structure, as a way of …...
Word Embedding Evaluation in Downstream Tasks and Semantic Analogies
AbstractLanguage Models have long been a prolific area of study in the field of Natural Language Processing (NLP). One of the newer kinds of language models, and some of the …...
Aggregating User-Centric and Post-Centric Sentiments from Social Media for Topical Stance Prediction
AbstractConventional opinion polls were usually conducted via questionnaires or phone interviews, which are time-consuming and error-prone. With the advances in social networking platforms, it’s easier for the general public to …...
Analyzing the Surprising Variability in Word Embedding Stability Across Languages
AbstractWord embeddings are powerful representations that form the foundation of many natural language processing architectures, both in English and in other languages. To gain further insight into word embeddings, we …...
Apples to Apples: A Systematic Evaluation of Topic Models
AbstractFrom statistical to neural models, a wide variety of topic modelling algorithms have been proposed in the literature. However, because of the diversity of datasets and metrics, there have not …...
CLULEX at SemEval-2021 Task 1: A Simple System Goes a Long Way
AbstractThis paper presents the system we submitted to the first Lexical Complexity Prediction (LCP) Shared Task 2021. The Shared Task provides participants with a new English dataset that includes context …...
Comparing Contextual and Static Word Embeddings with Small Data
For domain-specific NLP tasks, applying word embeddings trained on general cor- pora is not optimal. Meanwhile, training domain-specific word representations poses challenges to dataset construction and embed- ding evaluation. In …...
Denoising Word Embeddings by Averaging in a Shared Space
AbstractWe introduce a new approach for smoothing and improving the quality of word embeddings. We consider a method of fusing word embeddings that were trained on the same corpus but …...
Dictionary-based Debiasing of Pre-trained Word Embeddings
AbstractWord embeddings trained on large corpora have shown to encode high levels of unfair discriminatory gender, racial, religious and ethnic biases. In contrast, human-written dictionaries describe the meanings of words …...
Inspecting the concept knowledge graph encoded by modern language models
The field of natural language understanding has experienced exponential progress in the last few years, with impressive results in sev- eral tasks. This success has motivated re- searchers to study …...
Intrinsic Bias Metrics Do Not Correlate with Application Bias
AbstractNatural Language Processing (NLP) systems learn harmful societal biases that cause them to amplify inequality as they are deployed in more and more situations. To guide efforts at debiasing these …...
Learning Zero-Shot Multifaceted Visually Grounded Word Embeddings via Multi-Task Training
AbstractLanguage grounding aims at linking the symbolic representation of language (e.g., words) into the rich perceptual knowledge of the outside world. The general approach is to embed both textual and …...
Manchester Metropolitan at SemEval-2021 Task 1: Convolutional Networks for Complex Word Identification
AbstractWe present two convolutional neural networks for predicting the complexity of words and phrases in context on a continuous scale. Both models utilize word and character embeddings alongside lexical features …...
Marked Attribute Bias in Natural Language Inference
Reporting and providing test sets for harm- ful bias in NLP applications is essential for building a robust understanding of the cur- rent problem. We present a new observation of …...
Multi-source Neural Topic Modeling in Multi-view Embedding Spaces
AbstractThough word embeddings and topics are complementary representations, several past works have only used pretrained word embeddings in (neural) topic modeling to address data sparsity in short-text or small collection …...
Multilingual Learning for Mild Cognitive Impairment Screening from a Clinical Speech Task
AbstractThe Semantic Verbal Fluency Task (SVF) is an efficient and minimally invasive speech-based screening tool for Mild Cognitive Impairment (MCI). In the SVF, testees have to produce as many words …...
Rethinking Stealthiness of Backdoor Attack against NLP Models
AbstractRecent researches have shown that large natural language processing (NLP) models are vulnerable to a kind of security threat called the Backdoor Attack. Backdoor attacked models can achieve good performance …...
UMUTeam at SemEval-2021 Task 7: Detecting and Rating Humor and Offense with Linguistic Features and Word Embeddings
AbstractIn writing, humor is mainly based on figurative language in which words and expressions change their conventional meaning to refer to something without saying it directly. This flip in the …...
WARP: Word-level Adversarial ReProgramming
AbstractTransfer learning from pretrained language models recently became the dominant approach for solving many NLP tasks. A common approach to transfer learning for multiple tasks that maximize parameter sharing trains …...
Word Discriminations for Vocabulary Inventory Prediction
AbstractThe aim of vocabulary inventory prediction is to predict a learner’s whole vocabulary based on a limited sample of query words. This paper approaches the problem starting from the 2-parameter …...
A Hmong Corpus with Elaborate Expression Annotations
AbstractThis paper describes the first publicly available corpus of Hmong, a minority language of China, Vietnam, Laos, Thailand, and various countries in Europe and the Americas. The corpus has been …...
Debiasing Word Embeddings with Nonlinear Geometry
AbstractDebiasing word embeddings has been largely limited to individual and independent social categories. However, real-world corpora typically present multiple social categories that possibly correlate or intersect with each other. For …...
Discovering Differences in the Representation of People using Contextualized Semantic Axes
AbstractA common paradigm for identifying semantic differences across social and temporal contexts is the use of static word embeddings and their distances. In particular, past work has compared embeddings against …...
Emotion Enriched Retrofitted Word Embeddings
AbstractWord embeddings learned using the distributional hypothesis (e.g., GloVe, Word2vec) are good at encoding various lexical-semantic relations. However, they do not capture the emotion aspects of words. We present a …...
Enhancing Deep Learning with Embedded Features for Arabic Named Entity Recognition
AbstractThe introduction of word embedding models has remarkably changed many Natural Language Processing tasks. Word embeddings can automatically capture the semantics of words and other hidden features. Nonetheless, the Arabic …...
Evaluating Word Embeddings in Extremely Under-Resourced Languages: A Case Study in Bribri
AbstractWord embeddings are critical for numerous NLP tasks but their evaluation in actual under-resourced settings needs further examination. This paper presents a case study in Bribri, a Chibchan language from …...
HECTOR: A Hybrid TExt SimplifiCation TOol for Raw Texts in French
AbstractReducing the complexity of texts by applying an Automatic Text Simplification (ATS) system has been sparking interest inthe area of Natural Language Processing (NLP) for several years and a number …...
Imputing Out-of-Vocabulary Embeddings with LOVE Makes LanguageModels Robust with Little Cost
AbstractState-of-the-art NLP systems represent inputs with word embeddings, but these are brittle when faced with Out-of-Vocabulary (OOV) words. To address this issue, we follow the principle of mimick-like models to …...
Layer or Representation Space: What Makes BERT-based Evaluation Metrics Robust?
AbstractThe evaluation of recent embedding-based evaluation metrics for text generation is primarily based on measuring their correlation with human evaluations on standard benchmarks. However, these benchmarks are mostly from similar …...
Leveraging a Bilingual Dictionary to Learn Wolastoqey Word Representations
AbstractWord embeddings (Mikolov et al., 2013; Pennington et al., 2014) have been used to bolster the performance of natural language processing systems in a wide variety of tasks, including information …...
Multi-Stage Framework with Refinement Based Point Set Registration for Unsupervised Bi-Lingual Word Alignment
AbstractCross-lingual alignment of word embeddings are important in knowledge transfer across languages, for improving machine translation and other multi-lingual applications. Current unsupervised approaches relying on learning structure-preserving transformations, using adversarial …...
Raccoons at SemEval-2022 Task 11: Leveraging Concatenated Word Embeddings for Named Entity Recognition
AbstractNamed Entity Recognition (NER), an essential subtask in NLP that identifies text belonging to predefined semantics such as a person, location, organization, drug, time, clinical procedure, biological protein, etc. NER …...
RAPO: An Adaptive Ranking Paradigm for Bilingual Lexicon Induction
AbstractBilingual lexicon induction induces the word translations by aligning independently trained word embeddings in two languages. Existing approaches generally focus on minimizing the distances between words in the aligned pairs, …...
SOS: Systematic Offensive Stereotyping Bias in Word Embeddings
AbstractSystematic Offensive stereotyping (SOS) in word embeddings could lead to associating marginalised groups with hate speech and profanity, which might lead to blocking and silencing those groups, especially on social …...
Tales and Tropes: Gender Roles from Word Embeddings in a Century of Children’s Books
AbstractThe manner in which gender is portrayed in materials used to teach children conveys messages about people’s roles in society. In this paper, we measure the gendered depiction of central …...
UMUTextStats: A linguistic feature extraction tool for Spanish
AbstractFeature Engineering consists in the application of domain knowledge to select and transform relevant features to build efficient machine learning models. In the Natural Language Processing field, the state of …...
What company do words keep? Revisiting the distributional semantics of J.R. Firth & Zellig Harris
AbstractThe power of word embeddings is attributed to the linguistic theory that similar words will appear in similar contexts. This idea is specifically invoked by noting that “you shall know …...
Zero-shot and few-shot approaches for tokenization, tagging, and dependency parsing of Tagalog text
The grammatical analysis of texts in any written language typically involves a num- ber of basic processing tasks, such as tok- enization, morphological tagging, and de- pendency parsing. State-of-the-art systems …...
3D-EX: A Unified Dataset of Definitions and Dictionary Examples
AbstractDefinitions are a fundamental building block in lexicography, linguistics and computational semantics. In NLP, they have been used for retrofitting word embeddings or augmenting contextual representations in language models. However, …...
Are the Best Multilingual Document Embeddings simply Based on Sentence Embeddings?
AbstractDense vector representations for textual data are crucial in modern NLP. Word embeddings and sentence embeddings estimated from raw texts are key in achieving state-of-the-art resultsin various tasks requiring semantic …...
Lexical Complexity Prediction using Word Embeddings
Lexical complexity is crucial for reading comprehension. In the past, research work of lexical complexity prediction mainly focuses on differentiating the complexity difference between two words. Moreover, most of the …...
Sentiment as an Ordinal Latent Variable
AbstractSentiment analysis has become a central tool in various disciplines outside of natural language processing. In particular in applied and domain-specific settings with strong requirements for interpretable methods, dictionary-based approaches …...
Social-Group-Agnostic Bias Mitigation via the Stereotype Content Model
AbstractExisting bias mitigation methods require social-group-specific word pairs (e.g., “man” – “woman”) for each social attribute (e.g., gender), restricting the bias mitigation to only one specified social attribute. Further, this …...
Unsupervised Anomaly Detection in Multi-Topic Short-Text Corpora
AbstractUnsupervised anomaly detection seeks to identify deviant data samples in a dataset without using labels and constitutes a challenging task, particularly when the majority class is heterogeneous. This paper addresses …...