Fuzzy Conceptual Matching: Tool for Intelligent Knowledge Management and Discovery in the Internet

Masoud Nikravesh1
(Professor Lotfi A. Zadeh)
Berkeley Initiative in Soft Computing and BTExact Technologies (British Telecom)

Given the ambiguity and imprecision of the "concept" in the Internet, which may be described with both textual and image information, the use of Fuzzy Conceptual Matching (FCM) is a necessity for search engines. In the FCM approach, the "concept" is defined by a series of keywords with different weights depending on the importance of each keyword. Ambiguity in concepts can be defined by a set of imprecise concepts. Each imprecise concept, in fact, can be defined by a set of fuzzy concepts. The fuzzy concepts can then be related to a set of imprecise words given the context. Imprecise words can then be translated into precise words given the ontology and ambiguity resolution through a clarification dialog. By constructing the ontology and fine-tuning the strength of links (weights), we could construct a fuzzy set to integrate piecewise the imprecise concepts and precise words to define the ambiguous concept.

In this project, first we will present the role of fuzzy logic in the Internet. Then we will present an intelligent model that can mine the Internet to conceptually match and rank homepages based on predefined linguistic formulations and rules defined by experts or based on a set of known homepages. The FCM model will be used for intelligent information and knowledge retrieval through conceptual matching of both text and images (here defined as "concept"). The FCM can also be used for constructing fuzzy ontology or terms related to the context of the query and search to resolve the ambiguity.

M. Nikravesh and L. A. Zadeh, Perception Based Information Processing and Retrieval Application to User Profiling, Berkeley-BT project, 2000-2004.
M. Nikravesh and B. Azvine, FLINT 2001, New Directions in Enhancing the Power of the Internet, UC Berkeley Electronics Research Laboratory, Memorandum No. UCB/ERL M01/28, August 2001.
L. Vincenzo, M. Nikravesh, and L. A. Zadeh, Journal of Soft Computing, Special Issue: Fuzzy Logic and the Internet, Springer Verlag (to appear).
M. Nikravesh, Fuzzy Logic and Internet: Perception Based Information Processing and Retrieval, Berkeley Initiative in Soft Computing, Report No. 2001-2-SI-BT, September 2001.
M. Nikravesh, BISC and The New Millennium, Perception-based Information Processing, Berkeley Initiative in Soft Computing, Report No. 2001-1-SI, September 2001.

More information (http://www-bisc.cs.berkeley.edu) or

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