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摘要: 将进化算法引入图数据挖掘,以克服贪婪式查找易陷入局部极值的问题。针对图数据挖掘中经常遇到的子图同构问题,提出了带状态回溯个体的概念,从而使遗传算子的设计更为合理。另外,还提出了一种新的多样性保持方案,从种群的组成和个体的生成两个方面提高了种群的多样性。在进化过程中随时去掉当前种群中没有潜力的个体的机制使查找空间缩小了一半。实验结果表明,以上措施增强了算法的寻优能力,提高了算法的效率和解的质量。