Articles

This short paper describes - and in fact gives the complete source for - a tiny Prolog program implementing a flexi- ble and fairly efficient Transformation- Based Learning (TBL) system: 1...

We present a status report about an ongoing research project in the field of (semi-)automatic terminology acquisi- tion at the European Academy Bolzano. The main focus will be on encoding a text corpus, which serves as a basis for applying term extraction programq. 1...

We present an outline of the genome in- formation acquisition (GENIA) project for automatically extracting biochemical information from journal papers and ab- stracts. GENIA will be available over the Internet and is designed to aid in information extraction, retrieval and vi- sualisation and to help reduce informa- tion overload on …...

Default inheritance is a useful tool for encoding linguistic generalisations that have exceptions. In this paper we show how the use of an order independent typed default unification operation can provide non-redundant highly structured and concise representation to specify a network of lexical types, that encodes linguistic information about verbal …...

We present an operable definition of focus which is argued to be of a cognito-pragmatic nature and explore how it is determined in discourse in a formalized manner. For this purpose, a file card model of discourse model and knowledge store is introduced enabling the decomposition and formal representation of …...

In a CALL-environment (Computer- assisted language learning) programs should ideally allow the learner to train his/her communicative competence, which is one of the main goals of foreign language teaching nowadays. This can be reached by allowing learners to use and train their knowledge of a foreign language in realistic dialogue-style …...

This paper presents a framework for the definition of monotonic repair rules on chart items and Lexicalized Tree Gram- mars. We exploit island representations and a new level of granularity for the linearization of a tree called connected routes. It allows to take into account the topology of the tree …...

This report describes the development of a parsing system for written Swedish and is focused on a grammar, the main component of the system, semi- automatically extracted from corpora. A cascaded, finite-state algorithm is ap- plied to the grammar in which the input contains coarse-grained semantic class information, and the …...

This paper explores the issue of using dif- ferent co-occurrence similarities between terms for separating query terms that are useful for retrieval from those that are harmful. The hypothesis under examina- tion is that useful terms tend to be more similar to each other than to other query terms. Preliminary …...

In this paper we propose a methodology for investigating the relationship between architectures of natural language genera- tion (NLG) systems and stylistic proper- ties of texts. Biber's (1988) methodology is used to obtain both the characterisation of style of our corpus and the division of the corpus into sets of …...

I will argue in this paper that the standard notions of affectedness, change-of-state and result state are too coarse-grained, and will revise and enrich substantially their content, increasing their role in a compositional aspect construal procedure. I will claim in particular that a proper theory of event structure requires that …...

This paper describes an architecture for performing anaphora resolution in a flexible way. Systems which con- form to these guidelines are well- encapsulated and portable, and can be used to compare anaphora resolu- tion techniques for new language un- derstanding applications. Our im- plementation of the architecture in a pronoun …...

One of the claimed benefits of Tree Ad- joining Grammars is that they have an extended domain of locality (EDOL). We consider how this can be exploited to limit the need for feature structure uni- fication during parsing. We compare two wide-coverage lexicalized grammars of English, LEXSYS and XTAG, finding …...

Lexicon definition is one of the main bot- tlenecks in the development of new ap- plications in the field of Information Ex- traction from text. Generic resources (e.g., lexical databases) are promising for reducing the cost of specific lexica defi- nition, but they introduce lexical ambi- guity. This paper proposes …...

This paper describes unsupervised learn- ing algorithm for disambiguating verbal word senses using term weight learning. In our method, collocations which char- acterise every sense are extracted using similarity-based estimation. For the re- sults, term weight learning is performed. Parameters of term weighting are then estimated so as to maximise …...

This paper describes a dependency structure analysis of Japanese sentences based on the maximum entropy mod- els. Our model is created by learning the weights of some features from a train- ing corpus to predict the dependency be- tween bunsetsus or phrasal units. The dependency accuracy of our system is …...

In previous work, supertag disambigua- tion has been presented as a robust, par- tial parsing technique. In this paper we present two approaches: contextual models, which exploit a variety of fea- tures in order to improve supertag per- formance, and class-based models, which assign sets of supertags to words in …...

In this paper, we propose a practical method to detect Japanese homophone errors in Japanese texts. It is very important to detect homophone errors in Japanese revision systems because Japanese texts suffer from homophone errors frequently. In order to detect ho- mophone errors, we have only to solve the homophone …...

We propose a parser for constraint- logic grammars implementing HPSG that combines the advantages of dy- namic bottom-up and advanced top- down control. The parser allows the user to apply magic compilation to spe- cific constraints in a grammar which as a result can be processed dynamically in a bottom-up …...

Dividing sentences in chunks of words is a useful preprocessing step for parsing, information extraction and information retrieval. (l~mshaw and Marcus, 1995) have introduced a "convenient" data rep- resentation for chunking by converting it to a tagging task. In this paper we will examine seven different data repre- sentations for …...