tailieunhanh - Báo cáo khoa học: "A TOOLKIT FOR LEXICON BUILDING"

This paper describes a set of interactive routines that can be used to create, maintain, and update a computer lexicon. The routines are available to the user as a set of commands resembling a simple operating system. The lexicon produced by this system is based on lexical-semantic relations, but is compatible with a variety of other models of lexicon structure. The lexicon builder is suitable for the generation of moderate-sized vocabularies and has been used to construct a lexicon for a small medical expert system. A future version of the lexicon builder will create a much larger lexicon by. | A TOOL KIT FOR LEXICON BUILDING Thomas E. Ahiswede Computer Science Department Illinois Institute of Technology Chicago Illinois 60616 USA ABSTRACT This paper describes a set of interactive routines that can be used to create maintain and update a computer lexicon. The routines are available to the user as a set of commands resembling a simple operating system. The lexicon produced by this system is based on lexical-semantic relations but is compatible with a variety of other models of lexicon structure. The lexicon builder is suitable for the generation of moderate-sized vocabularies and has been used to construct a lexicon for a small medical expert system. A future version of the lexicon builder will create a much larger lexicon by parsing definitions from machine-readable dictionaries. INTRODUCTION Natural language processing systems need much larger lexicons than those available today. Furthermore a good computer lexicon with semantic as well as syntactic information is elaborate and hard to construct. We have created a program which enables its user to interactively build and extend a lexicon. The program sets up a user environment similar to a simple interactive operating system in this environment lexical entries can be produced through a small set of commands combined with prompts specified by the user for the desired kind of lexicon. The interactive lexicon builder is being used to help construct entries for a lexicon to be used to parse and generate stroke case reports. Many terms in this medical sublanguage either do not appear in standard dictionaries or are used in the sublanguage with special meanings. The design of the lexicon builder is intended to be general enough to make it useful for others building lexicons for large natural language processing systems involving different sublanguages. The interactive lexicon builder will be the basis for a fully automatic lexicon builder which uses Sager s Linguistic String Parser LSP to parse .

• Báo cáo khoa học
• A TOOLKIT FOR LEXICON BUILDING
• Thomas E
• Ahlswede
• Long Papersword stress from spelling