Fuzzy Similarity Measure Based Case Retrieval Method

The inducement relation between fuzzy subsethood measure (FSUM) and fuzzy similarity measure (FSIM) is analyzed and proved, a novel calculation formula of FSUM is proposed, and the calculation formula of FSIM is induced so as to remedy the disadvantage of conventional ones. Then the FSIM based case retrieval (CR/FSIM) method is studied. The case based reasoning (CBR) system for the travel scheme management is developed so as to verify the validity of CR/FSIM method, compared with the conventional nearest neighbor (NN) method, the system simulation result shows that the CR/FSIM method can much improve the satisfaction degree of tourists within certain similarity degree threshold