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文中在实例特征矩阵的基础上，提出了一个最优特征集的启发式搜索算法，并对该算法的有效性进行了数据测试，给出了它与特征选择的贪心算法的比较结果．
Based on the example feature matrix, a heuristic search algorithm for the optimal feature set is proposed, and the effectiveness of the algorithm is tested. The comparison between the algorithm and the greedy algorithm of feature selection is given.