this Group aimed to improve mlc++ applicationMLC++ is a library of C++ classes for supervised machine learning. The MLC++ utilities were created using the library. the currenty version is 2.0 MLC++ provides general machine learning algorithms that can be used by end users, analysts, professionals, and researchers. The main objective is to provide users with a wide variety of tools that can help mine data, accelerate development of new mining algorithms, increase software reliability, provide comparison tools, and display information visually. this group will improve this library .using by us reserach.