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Query expansion using conceptual fuzzy sets for search engine

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2 Author(s)
Takagi, T. ; Dept. of Comput. Sci., Meiji Univ., Kanagawa, Japan ; Tajima, M.

We propose a search engine which conceptually matches input keywords and web pages. The conceptual matching is realized by context-dependent keyword expansion using conceptual fuzzy sets. First, we show the necessity and the problems of applying fuzzy sets to information retrieval. Next, we introduce the usefulness of conceptual fuzzy sets in overcoming those problems, and propose the realization of conceptual fuzzy sets using Hopfield networks. We also propose the architecture of the search engine which can execute conceptual matching dealing with context-dependent word ambiguity. Finally, we evaluate our proposed method through two simulations of retrieving actual web pages, and compare the proposed method with the ordinary TF-IDF method. We show that our method can correlate seemingly unrelated input keywords and produce matching Web pages, whereas the TF-IDF method cannot

Published in:

Fuzzy Systems, 2001. The 10th IEEE International Conference on  (Volume:3 )

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