Production of a Prototype Lexical Database Featuring High-speed, High-accuracy Access and Lexical Knowledge Acquisition

(1)词法数据的生成：对三生堂出版公司出版的《新meikai Kokugo Jiten》中的数据进行了修改和扩展，生成了约为1亿元的词法数据。170000个单词)。(2)词词典的构建：基于信息的层次结构模型，构建了只包含目标领域中使用的词的部分词典。(3)数据库管理系统的基本设计：数据库管理系统由访问、修改、扩展、采集、信息结构管理、人机界面等模块组成。(4)数据库管理系统的实现：使用C语言在一个工作站上实现了数据库管理系统。(5)词法数据详细规范的设计与实现：设计了词法数据的详细规范，并在工作站上对上述词法数据进行了处理与实现。(6)访问模块和知识获取模块的实现与评价：数据库管理系统的访问模块和知识获取模块在一个工作站上使用C语言和prolog实现。(7)词法数据库的生成：将(5)和(6)的结果集成到一个词法数据库中，并将其性能与使用传统访问系统的数据库在访问速度和准确性方面进行了比较，证实了所提出系统的优势。(8)词汇库的可用性测试：在报纸文章和天气预报的语素分析中对所提出的词汇库进行了测试，结果证实系统达到了预期的访问速度和准确性，以及未知词的获取能力，证明了所提出的词汇库的有效性。

(1) Generation of lexical data : The data from the "Shin-Meikai Kokugo Jiten" (by Sanseido Publishing Co.) have been modified and expanded to generate the lexical data(approx. 170,000 words).(2) Construction of a word lexicon : A partial lexicon containing only the words used in a target domain has been constructed based on a model of the hierarchical structure of information.(3) Basic design of a database management system : The database management system consists of modules for the access, modification, expansion, acquisition, information structure management, and man-machine interface.(4) Implementation of the database management system : The database management system has been implemented on a workstation using the C language.(5) Design and implementation of detailed specifications of lexical data : Detailed specifications of the lexical data have been designed and the above-mentioned lexical data have been processed and implemented on a workstation.(6) Implementation and evaluation of the access module and the knowledge acquisition module : The access module and the knowledge acquisition module of the database management system have been implemented on a workstation using the C language and prolog.(7) Generation of the lexical database : The results of (5) and (6) have been integrated into a lexical database and its performance has been compared with that of a database using conventional access system both in the speed and the accuracy of access, confirming the advantages of the proposed system.(8) Test of usefulness of the lexical database : The proposed lexical database has been tested in the morpheme analysis of newspaper articles and weather reports, and the results have confirmed that the system has achieved the expected speed and accuracy of access as well as the capability of unknown word acquisition, demonstrating the validity of the proposed lexical database.