a flexible natural language parser based

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Ngày tải lên: 31/03/2014, 03:20

... object GLAUCOMA-PATIENT. There is also a facility for adding domain dependent syntax, abbreviations and defaults. system that has a core of syntax and semantics that is applicable to all ... Indicate thac a "case'* [Bruce 1975] approach to semantic analysis is a " ;natural& quot;. A case syecsm ham in fact been implemented with such cases as ATTRIBUTE, OBJECT, VALUE, and ... concepts. ASS An ASSOCIATION llnk. Some relations, such as the relation between PATIENT and PATIENT-MEDICATION cannot be characterized aa ATTR, PART or CONT but are more complex, as shown...

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... above goals in a unified instance -based framework. 4 Instance -based boundary determination Instance -based generation automatically creates sentences that are similar to those generated by hu- mans, ... on their similarities to examples in a corpus. Third, our approach can adapt easily to suit a natural language gen- eration system’s capability by balancing the strengths and weaknesses of its ... 565–572, Ann Arbor, June 2005. c 2005 Association for Computational Linguistics Instance -based Sentence Boundary Determination by Optimization for Natural Language Generation Shimei Pan and James C. Shaw IBM...

Ngày tải lên: 20/02/2014, 15:20

... lexicai lookup, syntactic parsing, semantic analysis, and pragmatic analysis. Each stage has been designed to use linguistic data such as the lexicon and grammar, which are maintained separately ... large scale linguistic resources into our natural language understanding system. Client- server architecture was used to make a large volume of lexical information and a large knowledge base ... (WordNet -based KB concept names from ISI see text) 984 Integration of Large-Scale Linguistic Resources in a Natural Language Understanding System Lewis M. Norton, Deborah A. Dahl, Li Li, and Katharine...

Ngày tải lên: 20/02/2014, 18:20

... the ATIS domain that can be on Tuesday at three o'clock on United is a flight. The utterance parser partitions the utterance grammar into equivalence classes and considers each class according ... unification. Each category has a set of features declared for it. Each fea- ture has a declared value space of possible values (value spaces may be shared by different fea- tures). Feature ... Real-World Natural- Language Texts", in Text Based Intelligent Systems, ed. P. Jacobs, Lawrence Erlbaum Associates, Hillsdale, N J, pp. 13-33. Kameyama, M. (1992). "The Syntax and Seman-...

Ngày tải lên: 20/02/2014, 21:20

... make database languages more like natural language. However Prolog is much more general than relational database formalisms, in that it permits data to be defined by general rules having ... "top-down" approach, as reallsed in the language Prolog, has a great deal in common with the relational approach to databases, which can be seen as the result of a "bottom-up" effort to make ... ISSUES IN NATURAL LANGUAGE ACCESS TO DATABASES FROM A LOGIC PROGRAMMING PERSPECTIVE David H D Warren Artificial Intelligence Center SRI International, Menlo Park, CA 94025, USA I INTRODUCTION...

Ngày tải lên: 21/02/2014, 20:20

... menu approach to natural language input has many advantages over the traditional typing approach. Most importantly, every sentence that 156 MENU -BASED NATURAL LANGUAGE UNDERSTANDING Harry ... group at TI was manually altered to provide pictorial database capabilities. Taken together, the advantages listed above pave the way for low cost, maintainable interfaces to relational database ... because a prime application area for natural language interfaces has been to databases. Second, the process of producing an interface to any arbitrary set of relations has been automated. A. ...

Ngày tải lên: 21/02/2014, 20:20

... for natural- language systems which serve as interfaces to a database: the problems that arise in a module which maps the meaning representation to a second logical language for expressing actual ... Ramshaw and Varda Shaked - for the many pleasant and productive interactions I have had with them. References [1] Bates, Madeleine and Bobrow, Robert J. A Transportable Natural Language Interface ... [3] Codd,E.F. A Relational Model of Data for Large Shared Data Banks. CACM 13(6), June, 1970. [4] Barbara Grosz, Douglas E. Appelt, Paul Martin, and Fernando Pereira. TEAM: An Experiment...

Ngày tải lên: 21/02/2014, 20:20

... specification of descriptive constants and axioms relating them. Remarkably, 99.9% of 7,000 vocabulary items in our natural language ap- plications could be adequately axiomatlzed in the taxonomic ... Semantics of the JANUS Semantic Inter- pretation Language. In Research and Development in Natural Language Understanding as Part of the Strategic Computing Program, Annual Technical Report December ... Cad.son's analysis [10] of the semantics of bare plurals. THE, as an operator, takes three arguments: a variable, a sort (unary predicate), and a proposition. Its denotation is the unique salient...

Ngày tải lên: 21/02/2014, 20:20

... generation mod- ule. The following is a tree representing a gram- mar rule of the familiar type S NP VP: (‹s & currentAct!type!statement & currentAct!CA & argGap!ArgGap & auxGap!AuxGap ... & auxGap!AuxGap & sem!drs(_,[negation( drs(_, [type(E,Type) argl(E,X)IR1))] (<np & currentAct!CA & sem!X,[]), (<vp & argGap!ArgGap & auxGap!AuxGap & negated!<true & sem!drs( ... NECA project the aim is to generate behaviour for animated agents which simulates affective situated face-to-face conversational interaction. This means that the utterances of the agents have...

Ngày tải lên: 22/02/2014, 02:20

... (;ci'many lhnaih !,1'~!! at I)! ll)iBM I.BITNI'71' ABSTRACT The desire to construct robust and portable na- tural language systems has led to research on how a core vocabulary ... a long-range research prt~gram rather than as a short-term goal. Motiva!ion Rcasearch on natural language processing sys- tems today strives for the construction of robust and portable systems) ... eliminate arbitrariness. Rather, a definition of representative corpus must take into account tile research goals pursued. For a natural language system which is sup- posed to analyze and...

Ngày tải lên: 22/02/2014, 10:20

... 315-323. Rada Mihalcea, Courtney Corley and Carlo Strappa- rava. 2006. Corpus -based and Knowledge -based Measures of Text Semantic Similarity. Proceedings of AAAI-06 Rada Mihalcea. 2007. Using Wikipedia ... Computational Linguistics A Framework for Figurative Language Detection Based on Sense Differentiation Daria Bogdanova University of Saint Petersburg Saint Petersburg dasha.bogdanova@gmail.com Abstract Various ... International Con- ference on Knowledge Discovery and Data Mining (KDD-96), AAAI Press, pp. 226231 Michael Halliday and Ruqaiya Hasan. 1976. Cohesion in English. Longman, London Graham Katz and...

Ngày tải lên: 07/03/2014, 22:20

... almost all features a non-zero weight. 3.2 Language model adaptation Our experiments with LM adaptation are based on the work described in Gao et al. (2006). The va- riously trained language ... Linguistics A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing Jianfeng Gao * , Galen Andrew * , Mark Johnson *& , Kristina Toutanova * * Microsoft ... Introduction Parameter estimation is fundamental to many sta- tistical approaches to NLP. Because of the high-dimensional nature of natural language, it is often easy to generate an extremely large...

Ngày tải lên: 08/03/2014, 02:21

... with a capital letter. Markables are the carriers of the actual annota- tion information. They can be queried by means of string matching and by means of attribute-value combinations. A markable ... nominal attributes can have one of a (user-defined) closed set of possible values. The data model also supports associative relations between markables: Markable set relations associate arbitrarily many markables with ... Instead, users should be allowed to relate markables from all levels in a fairly unrestricted andad-hoc way. Since queryingis thus considerably simplified, exploratory data analy- sis of annotated...

Ngày tải lên: 08/03/2014, 04:22

... 1800 PENANG, MALAYSIA mosleh @ cs. usm.my, enyakong @ cs. usm. my Abstract In this paper we sketch an approach for Natural Language parsing. Our approach is an example -based approach, which ... approach is called example -based parsing, as oppose to the traditional approaches of natural language parsing which normally are based on rewriting rules. Here linguistic knowledge extracted ... \ Parsing Output Figure 6: Example -based natural language parsing based on the SSTC schema. 4. 1 The parsing algorithm The example -based approach in MT [1], [2] or [3], relies on the assumption...

Ngày tải lên: 08/03/2014, 05:21