机器学习——决策树文本分类 基于vs2012编写，内有训练文本集。-machine-learning text classfication by decisiontree,program in the visualstudio2012.include a set of text to train.

用C++实现的基于用户的协同过滤算法，包含训练集、测试集-Achieved with C++ user-based collaborative filtering algorithms, including training set, test set