TAILIEUCHUNG - Báo cáo khoa học: "A rich environment for experimentation unification grammars"

The d e v e l o p m e n t of ud arose out of the need to have a v a i l able a full set of p r o t o t y p i n g and development tools for a n u m b e r of different research projects in computational linguistics, all involving extensive text coverage inIn many respects relational abstractions resemble Prolog proc e d u r e s. | A rich environment for experimentation with unification grammars R. Johnson M. Rosner IDSIA Lugano ABSTRACT This paper describes some of the features of a sophisticated language and environment designed for experimentation with unification-oriented linguistic descriptions. The system which is called ud has to date been used successfully as a development and prototyping tool in a research project on the application of situation schemata to the representation of real text and in extensive experimentation in machine translation. While the ud language bears close resemblances to all the well-known unification grammar formalisms it offers a wider range of features than any single alternative plus powerful facilities for notational abstraction which allow users to simulate different theoretical approaches in a natural way. After a brief discussion of the motivation for implementing yet another unification device the main body of the paper is devoted to a description of the most important novel features of ud. The paper concludes with a discussion of some questions of implementation and completeness . 1. Introduction. The development of ud arose out of the need to have available a full set of prototyping and development tools for a number of different research projects in computational linguistics all involving extensive text coverage in several languages principally a demanding machine translation exercise and a substantial investigation into some practical applications of situation semantics Johnson Rosner and Rupp forthcoming . The interaction between users and implementers has figured largely in the development of the system and a major reason for the richness of its language and environment has been the pressure to accommodate the needs of a group of linguists working on three or four languages simultaneously and importing ideas from a variety of different theoretical backgrounds. Historically ud evolved out of a near relative of PATR-II shieber 1984 and its origins

• Báo cáo khoa học
• A rich environment
• experimentation unification grammars
• R
• Johnson
• scientific reports
• model language
• process natural language
• Zinc rich paint
• JIS SS400 steel
• Accelerated environmental tests
• Brackish environment
• The industrial port
• Technologies
• Averaging
• Conservation of mass
• Multiphase flow models
• Multiphase flow notation
• distribution functions
• Accounting undergraduate Honors theses
• Path to higher education
• The south African education and environment project
• The Robben Island political prison
• Rich and violent
• BMC Plant Biology
• Brassica napus
• Leptosphaeria maculans
• Quantitative resistance
• Adult plant resistance
• 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
• 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