面向语义构件检索的交互式查询方案生成  

An Interactive Query Generation Method for Semantics-based Component Retrieval

作　　者：蔡怡峰[1] 彭鑫[1] 钱乐秋[1] 

机构地区：[1]复旦大学计算机科学与工程系软件工程实验室,上海200433

出　　处：《电子学报》2008年第8期1631-1636,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60473062)

摘　　要：基于语义的构件检索过程中存在的一个突出问题是用户对问题域的理解以及所熟悉的自然语言表达方式与构件的规范语义描述之间存在差异,从而导致用户很难准确刻画自己的检索请求.针对这一问题,本文提出了一种交互式的查询方案生成方法.该方法通过概念映射将用户的自然语言查询转换为本体描述,从而确定用户的查询方案.其中,概念映射需要通过与用户的交互式会话过程完成.该方法可以充分挖掘潜在的用户查询语义,对于提高构件检索的查准率和查全率、减少查询努力具有十分重要的作用.One major problem in semantics-based component retrieval process is the discrepancy between nature language which users are familiar with and formal semantic descriptions of components, which makes users difficult to describe retrieve queries precisely. An interactive query generation method is proposed to solve this problem. The method uses concept identification process to map users＇ nature language to ontology descriptions of components, in which concept identification uses conversational process to interact with users. This method extracts implicit semantics in user queries so that it leads to improve recall and precision rates,reduce query effort in component retrieval.

关 键 词：构件检索 语义 本体 会话 交互 查询生成 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]