TAILIEUCHUNG - Báo cáo khoa học: "Beyond Lexical Units: Enriching Wordnets with Phrasets"

In this paper we present a proposal to extend WordNet-like lexical databases by adding phrasets, . sets of free combinations of words which are recurrently used to express a concept (let's call them recurrent free phrases). Phrasets are a useful source of information for different NLP tasks, and particularly in a multilingual environment to manage lexical gaps. Two experiments are presented to check the possibility of acquiring recurrent free phrases from dictionaries and corpora. | Beyond Lexical Units Enriching Wordnets with Phrasets Luisa Bentivogli Emanuele Pianta ITC-irst Trento Italy bentiVO pianta @ Abstract In this paper we present a proposal to extend WordNet-like lexical databases by adding phrasets . sets of free combinations of words which are recurrently used to express a concept let s call them recurrent free phrases . Phrasets are a useful source of information for different NLP tasks and particularly in a multilingual environment to manage lexical gaps. Two experiments are presented to check the possibility of acquiring recurrent free phrases from dictionaries and corpora. 1 Introduction WordNet Fellbaum 1998 is a popular lexical database for English in which content words are organized into sets of synonyms synsets each representing one underlying lexical concept. Words and concepts are further connected through various lexical and semantic relations. WordNet has been widely adopted in the NLP community for a variety of practical tasks such as word sense disambiguation question answering information retrieval summarization etc. The English WordNet database is being used as a basis for the development of different multilingual databases such as EuroWordNet MultiWordNet and the recent BalkaNet project. To make it more useful in NLP applications WordNet is constantly updated and extended with different kinds of information such as domain information syntactic information topic signatures syntactic parsing and PoS tagging of the glosses etc. In this paper we propose to extend the Word-Net model by adding a new data structure called phraset. A phraset is a set of free combinations of words as opposed to lexical units which are recurrently used to express a concept. Phrasets can provide useful information for different kind of NLP tasks both in a monolingual and multilingual environment. For instance phrasets can be useful for knowledge-based word alignment of parallel corpora to find correspondences when one language has a

• Báo cáo khoa học
• Beyond Lexical Units
• Enriching Wordnets
• Phrasets
• scientific reports
• model language
• process natural language
• Dialog Control
• Natural Language System
• Dialog Control in a Natural Language System
• Expanding the Horizons
• Natural Language Interfaces
• Phil Hayes
• PROSPECTS OR PRACTICAL
• NATURAL LANGUAGE SYSTEMS
• Workshops
• NATURAL LANGUAGE
• INTERACTION WITH MACHINES
• Long Papers
• COMPUTER INTEBFACE DESIGN MURRAY TUROFF DEPARTMENT OF COMPUTER
• IiVFORMATION SCIENCE IIEW JERSEY INSTITUTE OF TECHNOLOGY
• EVALUATION OF NATURAL LANGUAGE
• INTERFACES TO DATABASE SYSTEMS
• A PANEL DISCUSSION
• database query system
• J
• Norwood Crout
• INTERFACES TO DATA BASE SYSTEMS
• Bozena Henisz
• INTERPRETING NATURAL LANGUAGE
• DATABASE UPDATES
• S
• Jermld Kaplan Jim David
• TRANSPORTABLE NATURAL LANGUAGE
• INTERFACES TO DATABASES
• Gary G
• Hendrlx and William H
• Lewis
• DATABASES THEORETICAL
• TECHNICAL ISSUES
• TRANSPORTABLE NATURAL LANGUAGE INTERFACES
• PROBLEMS AND TECHNIQUES
• Barbara J
• Grosz
• THEORETICAL TECHNICAL ISSUES
• NATURAL LANGUAGE ACCESS TO DATABASES
• R
• Petrick
• Domain Independent
• Database Access Systems
• ISSUES IN NATURAL LANGUAGE
• ACCESS TO DATABASES
• A LOGIC PROGRAMMING PERSPECTIVE
• Sharon C
• Salveter David Maier
• PLANNING NATURAL LANGUAGE
• EXPRESSIONS REFERRING
• Douglas E
• Appelt
• THE TEXT SYSTEM
• NATURAL LANGUAGE GENERATION
• Kathleen R
• M
• MENTING A DATABASE
• KNOWLEDGE REPRESENTATION
• THE KEY TO THE SELECTION PROBLEM
• E
• Jeffrey Conklin David D
• McDonald
• A KNOWLEDGE ENGINEERING
• NATURAL LANGUAGE UNDERSTANDING
• Stuart C
• Shapiro
• NATURAL LANGUAGE TEXTS
• NECESSARILY GRAMMATICAL
• EVEN COMPLETE
• UNGRAMHATICALITY
• EXTRA GRAMMATICALITY
• NATURAL LANGUAGE UNDERSTANDING SYSTEMS
• Taxonomy
• Descriptions
• Individuals in Natural
• Language Understanding
• The Use of Ooject Special Knowledge
• Natural Language Processing
• Mark H
• Bursteln