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Building Effective Queries In Natural Language Information Retrieval

Authors: nan

Publication: TIPSTER (1997)

DOI: nan

In this paper we report on our natural language informa- tion retrieval (NLIR) project as related to the recently concluded 5th Text Retrieval Conference (TREC-5). The main thrust of this …...

41485

Unsupervised Learning of Arabic Stemming Using a Parallel Corpus

Authors: nan

Publication: TIPSTER (2003)

DOI: nan

This paper presents an unsupervised learn- ing approach to building a non-English (Arabic) stemmer. The stemming model is based on statistical machine translation and it uses an English stemmer and …...

36865

Finding Ideographic Representations of Japanese Names Written in Latin Script via Language Identification and Corpus Validation

Authors: nan

Publication: TIPSTER (2004)

DOI: nan

Multilingual applications frequently involve dealing with proper names, but names are often missing in bilingual lexicons. This problem is exacerbated for applications involving translation between Latin-scripted languages and Asian languages …...

36872

Automatic Term Extraction Based on Perplexity of Compound Words

Authors: nan

Publication: TIPSTER (2005)

DOI: nan

. Many methods of term extraction have been discussed in terms of their accuracy on huge corpora. However, when we try to apply various methods that derive from frequency to …...

13086

A Text Classifier Based on Sentence Category VSM

Authors: nan

Publication: TIPSTER (2006)

DOI: nan

. VSM is a mature model of text representation for categorization. Words are commonly used as dimensions of feature space of VSM, but words only provide little semantic information. Sentence …...

19488

An Improved Corpus Comparison Approach to Domain Specific Term Recognition

Authors: nan

Publication: TIPSTER (2008)

DOI: nan

. Domain specific terms are words carrying special conceptual meanings in a sub- ject field. Automatic term recognition plays an important role in many natural language processing and knowledge engineering …...

19437

Correcting Comma Errors in Learner Essays, and Restoring Commas in Newswire Text

Authors: nan

Publication: TIPSTER (2012)

DOI: nan

While the field of grammatical error detection has progressed over the past few years, one area of particular difficulty for both native and non-native learners of English, comma place- ment, …...

23936

Inferring Selectional Preferences from Part-Of-Speech N-grams

Authors: nan

Publication: TIPSTER (2012)

DOI: nan

We present the PONG method to compute selectional preferences using part-of-speech (POS) N-grams. From a corpus labeled with grammatical dependencies, PONG learns the distribution of word relations for each POS …...

43689

Confidence Estimation for Knowledge Base Population

Authors: nan

Publication: TIPSTER (2013)

DOI: nan

Information extraction systems automati- cally extract structured information from machine-readable documents, such as newswire, web, and multimedia. Despite significant improvement, the performance is far from perfect. Hence, it is useful …...

28920

Taking Antonymy Mask off in Vector Space

Authors: nan

Publication: TIPSTER (2014)

DOI: nan

Automatic detection of antonymy is an important task in Natural Language Processing (NLP) for Information Retrieval (IR), Ontology Learning (OL) and many other semantic applications. However, current unsupervised approaches to …...

19238

Extracting Relations between Non-Standard Entities using Distant Supervision and Imitation Learning

Authors: nan

Publication: TIPSTER (2015)

DOI: nan

Distantly supervised approaches have be- come popular in recent years as they allow training relation extractors without text- bound annotation, using instead known relations from a knowledge base and a …...

34726

RankDCG: Rank-Ordering Evaluation Measure

Authors: nan

Publication: TIPSTER (2016)

DOI: nan

AbstractRanking is used for a wide array of problems, most notably information retrieval (search). Kendall’s τ, Average Precision, and nDCG are a few popular approaches to the evaluation of ranking. …...

15076

On the Importance of Adaptive Data Collection for Extremely Imbalanced Pairwise Tasks

Authors: nan

Publication: TIPSTER (2020)

DOI: nan

AbstractMany pairwise classification tasks, such as paraphrase detection and open-domain question answering, naturally have extreme label imbalance (e.g., 99.99% of examples are negatives). In contrast, many recent datasets heuristically choose …...

32175

Understanding User Utterances in a Dialog System for Caregiving

Authors: nan

Publication: TIPSTER (2020)

DOI: nan

AbstractA dialog system that can monitor the health status of seniors has a huge potential for solving the labor force shortage in the caregiving industry in aging societies. As a …...

15934

Varying Vector Representations and Integrating Meaning Shifts into a PageRank Model for Automatic Term Extraction

Authors: nan

Publication: TIPSTER (2020)

DOI: nan

AbstractWe perform a comparative study for automatic term extraction from domain-specific language using a PageRank model with different edge-weighting methods. We vary vector space representations within the PageRank graph algorithm, …...

14442