计算机科学 ›› 2013, Vol. 40 ›› Issue (5): 198-200.
刘立新,张晓琳,吕庆,张换香,褚艳华
LIU Li-xin,ZHANG Xiao-lin,LV Qing,ZHANG Huan-xiang and CHU Yan-hua
摘要: 针对目前不确定XML小枝模式查询需要存储大量中间结果和归并中间结果的情况,提出一种非归并不确定XML小枝模式查询算法ProTwigList。该算法查询之前通过Tag+Level流进行剪枝,以减少待处理节点的数目;并扩展了区间编码来对剪枝后剩余的普通节点进行编码,用一定规则对分布节点进行标识;查询时采用公共分布节点路径的方法处理分布结点,最后结合最低公共祖先节点的概率计算查询结果的概率值。理论分析和实验结果证明了ProTwigList算法的查询效率。
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