Abstract:

The calculation is one of the important issues which affect the application of the DezertSmarandache theory (DSmT). The research of the calculation is a hotspot in the area of the DSmT. The calculation code is widely recognized for the reasonability of evidence expression and belief computation. The calculation code is simple and effective in the coding process. But all possible elements should be searched in the decoding process which causes large calculation amount to reduce the efficiency of calculation code. To solve the problem, a modified evidence coding method is presented. In the modified method, the exclusive position attribution based on the focal element relationship is added to reduce the large calculation amount in the decoding process. The exclusive position attribution is generated and stored in the database before evidence processing. The simulation example verifies the validity of the combination result and the high efficiency in the calculation.