主催: Japan SOciety for Fuzzy Theory and intelligent informatics
共催: The Korea Fuzzy Logic and Intelligent Systems Society, IEEE Computational Intelligence Society, The International Fuzzy Systems Association, 21th Century COE Program "Creation of Agent-Based Social Systems Sciences"
One of the obstacles to building practical fuzzy database systems is to get semantic data such a proximity relation or similarity relation. The proximity relation is represented by the degree of ""closeness"" or ""similarity"" between data objects of a scalar domain. A fuzzy database system evaluates imprecise queries with the proximity relations. In this paper, a systematic proximity elicitation and efficient representations of the proximity relation are proposed. The proposed generation method is simple and systematic. It is based on the well-known fuzzy set theory and applicable to the real world applications because it has tuning parameter and weighting factor. The proposed representations of proximity relation are more efficient than the ordinary matrix representation since they reflect some properties of a proximity relation to save space. We show an example of quantitative calculate for the proximity relation. And we analyze the time complexity and the space occupancy of the proposed representation methods.
