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There exist a number of search-based planners with rather good performance, such a HSP, FF and Fast Downward. This thesis makes an in-depth study on heuristic and pruning techniques, which are two keys underlying every search-based planning system.
在该方法中,搜索算法、启发函数和剪枝策略等都是当前的研究热点。
参考来源 - 基于启发式搜索的智能规划方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
引入剪枝策略，实现了安全信息最大化发布。
The pruning methods were adopted to publish the secure information as much as possible.
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。
Then, with the summing-up of pruning methods of decision tree, we make certain the pruning strategy that adapts to dynamic fuzzy decision tree.
然后应用多权重剪枝策略（MW-OBS）进一步简化、确定网络结构。
The multi-weights-optimal brain surgeon (MW-OBS) algorithm, was included to further prune unimportant weights or nodes.
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