TAILIEUCHUNG - Báo cáo khoa học: "USE OF HERRISTIC KNOWLEDGE IN CHINNESE LANGUAGE ANALYSIS"

This paper describes an analysis method which uses heuristic knowledge to find local syntactic structures of Chinese sentences. We call it a preprocessing, because we use it before we do global syntactic structure analysisCl]of the input sentence. Our purpose is to guide the global analysis through the search space, to avoid unnecessary computation. To realize this, we use a set of special words that appear in commonly used patterns in Chinese. We call them "characteristic words" . They enable us to pick out fragments that might figure in the syntactic structure of the sentence. . | USE OF HEURISTIC KNOWLEDGE IN CHINESE LANGUAGE ANALYSIS Yiming Yang Toyoaki Nishida and Shuji Doshita Department of Information Science Kyoto University Sakyo-ku Kyoto 606 JAPAN ABSTRACT This paper describes an analysis method which uses heuristic knowledge to find local syntactic structures of Chinese sentences. wo call it a preprocessing because we use it before we do global syntactic structure analysiscllof the input sentence. Our purpose is to guide the global analysis through the search space to avoid unnecessary computation. To realize this we use a set of special words that appear in conmonly used patterns in Chinese. We call them characteristic words . They enable US to pick out fragments that might figure in the syntactic structure of the sentence. Knowledge concerning the use of characteristic words enables US to rate alternative fragments according to pattern statistics fragment length distance between characteristic words and so on. The preprocessing system proposes to the global analysis level a most likely partial structure. In case this choice is rejected backtracking looks for a second choice and so on. For our system we use 200 characteristic words. Their rules are written by 101 automata. We tested them against 120 sentences taken from a Chinese physics text book. For this limited set correct partial structures were proposed as first choice for 94 of sentences. Allowing a 2nd choice the score is 98 with a 3rd choice the score is 100 . 1. THE PROBLEM OF CHINESE LANGUAGE ANALYSIS Being a language in which only characters ideograms are used Chinese language has specific problems. Conpared to languages such as English there are few formal inflections to indicate the grammatical category of a word and the few inflections that do exist are often omitted. In English postfixes are often used to distinguish syntactical categories . translation translate difficult dificulty but in Chinese it is very common to use the same word characters for a verb a .

• Báo cáo khoa học
• USE OF HERRISTIC KNOWLEDGE
• CHINNESE LANGUAGE ANALYSIS
• Yiming Yang
• Toyoaki Nishida and Shuji Doshita
• 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