“…Designing an improved algorithm of data mining can further improve the efficiency of existing data mining algorithms and improve the results of data mining.The legitimacy of characterization results straightforwardly influences the exactness of data mining results [8]. The development strategies for classifiers mostly incorporate the accompanying: choice tree grouping strategy, numerical measurements technique, man-made consciousness technique, neural organization strategy, and so on as per different examination headings of order calculation, it tends to be partitioned into the accompanying classifications: choice tree arrangement calculation, Bayesian grouping calculation, affiliation rule, neural organization, k-closest neighbor calculation, hereditary calculation, unpleasant set, and so on [9]. This part first introduces the concept and theoretical techniques of Bayesian method, and then proposes a new incremental decision tree algorithm combining Bayesian method and decision tree algorithm.…”