4Sadek A W,Smith B L,Demetsky M J.A prototype case-based reasoning system for real-time freeway traffic routing[J].Transportation Research Part C:Emerging Technologies,2001,9(5):353-380.
5Watson I.Case-based reasoning is a methodology not a technology[J].Knowledge-Based Systems,1999,12(5-6):303-308.
6Marston R Changeable Message Signs[J]. Public Roads, 1993, 57(2): 27-34.
7Ruspini E H. A New Approach to Clustering[J]. Information and Control, 1969, 15(1): 22-32.
8Bezdek J C. Pattern Recognition with Fuzzy Objective Function Algorithms[M]. New York, USA: Plenum Press, 1981.