本论文深入浅出的讲解了C4.5算法，对算法的剪枝、缺省值的处理等方方面面进行了较为详细的讲解，很值得阅读。-This paper to explain in simple terms the C4.5 algorithm, the pruning algorithm, the default value, such as deal with all aspects of conducting a more detailed explanation, is worth reading.