The Research of Social Navigation based on Fuzzy Concept Lattice

A social navigation system is an efficient way to provide assistance making decision based on results of a Web search engine. In this paper, a new model of social navigation system based on a fuzzy concept lattice is proposed. A fuzzy formal context can be obtained by formalizing users\´ traces who have similar interests, and a fuzzy concept lattice is built on the fuzzy formal context. Here, a fuzzy concept is formalized as rule "If then", i.e., let (X, B) be a fuzzy concept, it is expressed as "If G is X, then A is B ". For a new object (called query words), firstly, it is fuzzized by matching with old objects (called session names). Then, according to "If then" rules, i.e., fuzzy concepts, properties of the new object can be obtained by fuzzy inference. The advantages of the method is not only fuzzy matching can be used in social navigation system, but also semantic similarly relation. Experimental results show the system is feasible and effective.