Designing a Syntax-Based Retrieval System for Supporting Language Learning
學年 95
學期 2
發表日期 2007-07-14
作品名稱 Designing a Syntax-Based Retrieval System for Supporting Language Learning
作品名稱（其他語言）
著者 Tsao, Nai-Lung; Kuo, Chin-Hwa; Huang, Tsung-Fu; Wible, David
作品所屬單位 淡江大學資訊工程學系
出版者
會議名稱 2007年增進學習會議=Technology Enhanced Learning Conference 2007 (TELearn 2007)
會議地點 臺北市, 臺灣
摘要 In this paper, we propose a syntax-based text retrieval system for on-line language learning and use a fast regular expression search engine as its main component. Regular expression searches provide more scalable querying and search results than keyword-based searches. However, without a well-designed index scheme, the execution time of regular expression search would be unacceptable to users. Our methods are based on [1] and we introduce some modifications, such as a presuf index constructing algorithm and a method for deciding minimum filter factor, to meet the requirements of our syntax-based text retrieval system. The experiment results show the index space size is small and the performance of syntax-based sample queries show significant improvements over benchmark results. A user-friendly query generator is designed to support users who have no background knowledge of regular expressions.
關鍵字 Regular expression;Syntax-based retrieval;Indexing technique;Query processing;Language learning
語言 en
收錄於
會議性質 國內
校內研討會地點
研討會時間 20070714~20070715
通訊作者
國別 TWN
公開徵稿 Y
出版型式 紙本
出處 2007年增進學習會議論文集=Proceedings of the Technology Enhanced Learning Conference 2007，8頁
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