Microsoft Word - 通讯内容.doc 关键词： Web挖掘；最大频繁项集；剪枝策略；搜索空间 [gap=945]Key words: Web mining; maximal frequent itemsets; pruning strategy; search space
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PDStream firstly divided data space into grids, then used an improved dimension tree structure to maintain and update the data stream summary statistics. Designed a pruning strategy to prune the sparse grids in dimension tree periodically.
信息，设计了一种周期性剪枝策略，周期性地剪去维度树中的稀疏网格，最后采用深度优先搜索算法在线处理聚类请求。
参考来源 - 基于衰减窗口与剪枝维度树的实时数据流聚类—《计算机应用研究》—2009年第4期—龙源期刊网First of all, we made models of users’VCR actions through analyzing statistics of users’historic access data. After optimizing these models with specific state-pruning strategy, we extract the access patterns which represent the consumer’s access habits.
通过对用户历史访问数据的统计和分析,结合状态合并算法为用户拖拽操作建立马尔科夫模型,再通过状态剪枝算法优化从而得到选择型马尔科夫模型,从中提取出代表用户访问习惯的访问模式,结合LRU-2缓存替换算法构建出专门为流媒体环境设计的FPMM_VLike_LRU_2缓存管理策略。
参考来源 - 基于选择型马尔科夫模型的CDN缓存管理系统研究Moreover, this algorithm adopts an effective iterative and pruning strategy that could compress the scale of candidate patterns and reduce the communication cost.
而且,该算法采用了有效的迭代剪枝技术,大大压缩了候选模式的数量,降低了通信代价。
参考来源 - 网络告警分布式加权关联规则挖掘系统的研究与设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Then, with the summing-up of pruning methods of decision tree, we make certain the pruning strategy that adapts to dynamic fuzzy decision tree.
总结了决策树的剪枝方法，并给出了动态模糊决策树的剪枝策略。
Moreover, this algorithm adopts an effective iterative and pruning strategy that could compress the scale of candidate patterns and reduce the communication cost.
而且，该算法采用了有效的迭代剪枝技术，大大压缩了候选模式的数量，降低了通信代价。
Besides, in this algorithm, we have used some strategy of pruning, which make the algorithm's time complexity more lower.
在该算法中，还使用了一定的剪枝策略，使得算法的时间复杂度进一步降低。
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