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A Gammar Model for Left-To-Right Parsing
Gyonggu Shin,Kyung-An Song,Hwan-Mook Lee 경희대학교 언어정보연구소 1991 언어연구 Vol.10 No.-
A Gammar Model for Left-To-Right Parsing
신경구 대한언어학회 2003 언어학 Vol.11 No.2
This paper shows how a language course has improved with cooperative learning activities and the Internet. In previous courses, students were not actively engaged in the class procedure. The reasons were: ⅰ) the instructor lacked group management skills, ⅱ) the course materials were not well organized, and ⅲ) the discussion topics did not properly address the need of students. Recently constructivist approaches were incorporated to re-design the class. In addition, a web-based textbook was introduced to fit the need of cooperative learning activities. the new organization gives each of the learners individualized tasks. The Internet made possible the extension of classroom activities outside the classroom. Some of the significant results are: ⅰ) learners are active in classes and ⅱ) they are satisfied with the course.
신경구 서울대학교 어학연구소 1992 語學硏究 Vol.28 No.1
In this paper we examined how the framework of Linear Phrase Structure Grammar(LPSG) works with Korean, one of the typical free-word-order languages. We propose Immediate Dominance (ID) rules and Linear Precedence (LP) statements following the convention of GPSG. We adopt the concept of maximal category to improve the efficiency of syntactic operation. Any noun phrase can be maximal when it is given a postposition of case. Only an NP with case provided by a postposition can expect a constituent and undergo syntactic and semantic composition. Six basic sentence structures with and without modifiers are examined in the LPSG framework. We find that the concept of maximal category is necessary to exclude ungrammatical word order by blocking any word or phrase from getting into the boundary of a maximal category. In other words free-word-order is allowed only among the maximal categories. It also enhances the efficiency of parsing because we may not expect unnecessary categories from non-maximal categories. Because of this results we are obliged to accept the loose instead of strict linearity of syntactic and semantic composition. The attempt to parse Korean sentences strictly from left to right will result in inefficient parsing. And we can assume that the grammar without the concept of maximal category in free-word-order language would lack explanatory power.
Linear Phrase Structure Grammar
Myong, Ro-Keun,Park, Hyo-Myong,Shin, Gyonggu 서울대학교 어학연구소 1988 語學硏究 Vol.24 No.2
The current model aims to give homomorphic explanation on syntax as well as semantics with linear operaition, which is based on filled and to-be-filled categories. Filled categories are similar to slash categories of GPSG but with different effect. To-be-filled categories are provided as default value from ID rules. A sentence is not considered complete until to-be-filled categories are satisfied. The rules in this model are not only contex-free but also binary so that default value assignment becomes possible.