TAILIEUCHUNG - Báo cáo khoa học: "TEMPORAL REASONING IN NATURAL LANGUAGE UNDERSTANDING: THE TEMPORAL STRUCTURE OF THE NARRATIVE"

This p a p e r proposes a new framework for discourse analysis, in the spirit of Grosz and Sidner (1986), Webber (1987a,b) but differentiated with respect to the type or genre of discourse. It is argued t h a t different genres call for different representations and processing strategies; particularly i m p o r t a n t is the distinction between subjective, pefformative discourse and objective discourse, of which narrative is a primary example. This p a p e r concentrates on narratives and introduces the notions of temporal focus (proposed also in Webber (1987b)) and. | TEMPORAL REASONING IN NATURAL LANGUAGE UNDERSTANDING THE TEMPORAL STRUCTURE OF THE NARRATIVE Alexander Nakhimovsky Department of Computer Science Colgate University Hamilton NY 13346 USA CSNet sashaflcolgate Abstract This paper proposes a new framework for discourse analysis in the spirit of Grosz and Sid-ner 1986 Webber 1987a b but differentiated with respect to the type or genre of discourse. It is argued that different genres call for different representations and processing strategies particularly important is the distinction between subjective performative discourse and objective discourse of which narrative is a primary example. This paper concentrates on narratives and introduces the notions of temporal focus proposed also in Webber 1987b and narrative move. The processing tasks involved in reconstructing the temporal structure of a narrative Webber s e s structure are formulated in terms of these two notions. The remainder of the paper analyzes the durational and aspectual knowledge needed for those tasks. Distinctions are established between grammatical aspect aspectual class and the aspectual perspective of a sentence in discourse it is shown that in English grammatical aspect under-determines the aspectual perspective. NARRATIVES This paper investigates the varieties of temporal knowledge and temporal reasoning that are at work in understanding extended narratives. It starts out by developing a new framework for narrative representation a framework that has developed independently from but is very similar to Webber 1987a 1987b. It also builds on the ideas of Grosz and Sidner 1986 but reformulates them specifically for the task of narrative understanding. A reformulation I believe is needed because different genres of discourse -narrative expository text task-oriented dialog argument etc. - have different principles of organization that call for different representations and processing strategies. Without offering a comprehensive taxonomy of discourse .

• Báo cáo khoa học
• TEMPORAL REASONING
• NATURAL LANGUAGE UNDERSTANDING
• THE TEMPORAL STRUCTURE OF THE NARRATIVE
• scientific reports
• model language
• process natural language
• A Modal Temporal Logic
• Reasoning about Change
• Eric Mays
• Environmentally
• Contingent Variation
• Molecular Chaperones
• Chaperones Mirror
• Photosynthesis
• Light and Photosynthesis
• 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
• 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