TAILIEUCHUNG - Báo cáo khoa học: "DECLARATIVE k VIEV NOOEL FOR DEPENDENCY PARSING INTO BLACKBOARD METHOOOLOGY"

Recently, we have augmented the dependency parsing model t o c o v e r a l s o tong-distance dependencies. According to the augmented model we have implemented a blackboard-based dependency p a r s e r ADP (Augmented Dependency P a r s e r ) . | DECLARATIVE MODEL FOR DEPENDENCY PARSING -A VIEW INTO BLACKBOARD METHODOLOGY Valkonen K. Jappinen X. Lehtola A. and Ylflammi M. KIELIKONE-project SITRA Foundation 329 SF-00121 Helsinki Finland tel. inti 358 0 641 877 ABSTRACT This paper presents a declarative dependency constraint model for parsing an inflectional free word order language like Finnish. The structure of Finnish sentences is described as partial dependency trees of depth one. Parsing becomes a nondeterministic search problem in the forest of partial parse trees. The search process is able to solve also ambiguities and long-distance dependencies. Parsing is controlled by a blackboard system. A working parser for Finnish has been implemented based on the model. 1 INTRODUCTION The development of our computational model for dependency parsing has progressed in three parallel and interrelated phases 1 The development of a perspicuous high level grammar specification language which grasps well regularities and idiosyncracies of inflectional free word order languages. 2 The acquisition of a grammar using that language as the description media. 3 The development of a parsing strategy and a compiler for the specification language. In our first approach the parsing process is described as a sequence of local decisions Nelimarkka et al. 1984 . A pair of adjacent structures of an input sentence is connected if there exists a valid binary dependency relation between them. Binary relations are boolean expressions of the morphological and syntactic restrictions on argument structures. In that first version dependency sructures were modelled procedurally with finite two-way automata Lehtola et al. 1985 . Grammar descriptions turned out to be complicated to handle and due to purely local decisions some global phenomena such as long-distance dependencies were not analyzed. A new grammar description formalism and computational method was developed a declarative high level language FUNDPL JSppinen et al. 1986 .

• Báo cáo khoa học
• DECLARATIVE k VIEV NOOEL
• DEPENDENCY PARSING
• BLACKBOARD METHOOOLOGY
• 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