Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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LSI-Updating Application for Internet-based Information Retrieval - LSI Improvement Using QR Decomposition

인터넷기반 정보 검색을 위한 LSI 활용 - QR 분해를 이용한 LSI 향상

  • 박유진 (연세대학교 컴퓨터과학과 한글정보처리연구실) ;
  • 송만석 (연세대학교 컴퓨터과학과 한글정보처리연구실)
  • Published : 2001.06.01
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Abstract

This paper took advantage of SVD (Singular value Decomposition) techniques of LSI(Latent Semantic Indexing) to grasp easily terminology distribution. Existent LSI did to static database, propose that apply to dynamic database in this paper. But, if dynamic applies LSI to database, updating problem happens. Existent updating way is Recomputing method, Folding-in method, SVD-updating method. Proposed QR decomposition method to show performance improvement than existent three methods in this paper.

Keywords