Aiming at the problem of basic probability assignment function conformation to Dempster-Shafer evidence reasoning, this paper presents a new conformation method based on fuzzy cluster analysis, then applies it to simulation experiments of radar target recognition, and compares it to the gray correlation method.

During the multi-source information fusion with Dezert-Smarandache theory(D-SmT),the problem of the subjectivity exists in getting the mathematical model of general basic belief assignment(GBBA).

Taking the valuation lattice to be the unit interval ,this paper introduces the valuation density function and defines the probability truth degree.

The valuation density function of formulas in the continuous value propositional logic system is proposed on the idea of conditional probability.

The valuation density function of formulas in continuous value propositional logic system is obtained based on the idea of conditional probability.

In this paper, the major works are as follows:In this paper, a method for text categorization based on the fusion of multiple classifiers was presented, reliability function was introduction to select the text that hard to give determine by the main classifier, for these texts, multiple classifiers were used to give the determine which category the unlabeled documents belong to by voting.

It was to evaluate the experimental result of single classifier using the reliability function,to classify the documents that were hard to be classified by voting.