TAILIEUCHUNG - Báo cáo khoa học: "Features and Values"

The paper discusses the linguistic aspects of a new general purpose facility for computing with features. The program was developed in connection with the course I taught at the University of Texas in the fall of 1983. It is a generalized and expanded version of a system that Stuart Shieber originally designed for the PATR-II project at SRI in the spring of 1983 with later modifications by Fernando Pereira and me. Like its predecessors, the new Texas version of the "DG {directed graph}" package is primarily intended for representing morphological and syntactic information but it may turn out to. | Features and Values Lauri Karttunen University of Texas at Austin Artificial Intelligence Center SRI International and Center for the Study of Language and Information Stanford University Abstract The paper discusses the linguistic aspects of a new general purpose facility for computing with features. The program was developed in connection with the course I taught at the University of Texas in the fall of 1983. It is a generalized and expanded version of a system that Stuart Shieber originally designed for the PATR-II project at SRI in the spring of 1983 with later modifications by Fernando Pereira and me. Like its predecessors the new Texas version of the DG directed graph package is primarily intended for representing morphological and syntactic information but it may turn out to be very useful for semantic representations too. 1. Introduction Most schools of linguistics use some type of feature notation in their phonological morphological syntactic and semantic descriptions. Although the objects that appear in rules and conditions may have atomic names such as k NP Subject and the like such high-level terms typically stand for collections of features. Features in this sense of the word are usually thought of as attribute-value pairs person 1st number sg although singleton features are also admitted in some theories. The values of phonological and morphological features are traditionally atomic . 1st 2nd 3rd they are often binary -. Most current theories also allow features that have complex values. A complex value is a collection of features for example In graphs of this sort values are reached by traversing paths of attribute names. We use angle brackets to mark expressions that designate paths. With that convention the above graph can also be represented as a set of equations Agreement number sg agreement person - 3rd Such equations also provide a convenient way to express conditions on features. This idea lies at the heart of UG LFG and the PATR-II .

• Báo cáo khoa học
• Features and Values
• Lauri Karttunen
• Long Papers
• scientific reports
• model language
• process natural language
• Stocks and their valuation
• Features of common stock
• Determining common stock values
• Efficient markets
• Peferred stock
• Ownership implies control
• BMC Cancer
• Breast cancer
• Cancer phenotypes
• HER2 status
• ER negative tumors
• HER2 overexpression
• 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
• 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
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• Norwood Crout
• INTERFACES TO DATA BASE SYSTEMS
• Bozena Henisz
• INTERPRETING NATURAL LANGUAGE
• DATABASE UPDATES
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• Jermld Kaplan Jim David
• TRANSPORTABLE NATURAL LANGUAGE
• INTERFACES TO DATABASES
• Gary G
• Hendrlx and William H
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• DATABASES THEORETICAL
• TECHNICAL ISSUES
• TRANSPORTABLE NATURAL LANGUAGE INTERFACES
• PROBLEMS AND TECHNIQUES
• Barbara J
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• THEORETICAL TECHNICAL ISSUES
• NATURAL LANGUAGE ACCESS TO DATABASES
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• 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
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• Jeffrey Conklin David D
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• A KNOWLEDGE ENGINEERING
• NATURAL LANGUAGE UNDERSTANDING
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• UNGRAMHATICALITY
• EXTRA GRAMMATICALITY
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• Taxonomy
• Descriptions
• Individuals in Natural
• Language Understanding
• The Use of Ooject Special Knowledge
• Natural Language Processing
• Mark H
• Bursteln