本文作者分析讨论了组播路由协议的生成树构建方法，在此基础上进一步对IP组播技术中核心的组播路由协议和算法进行了分析。
This paper intends to discuss the way to construct the spanning tree, on which the algorithm for routing protocol, which is the kernel of the IP multicasting, shall be analyzed.
大部分数据挖掘工具采用规则发现和决策树分类技术来发现数据模式和规则，其核心是归纳算法。
Most data mining tools use rule discovery and decision tree technology to extract data patterns and rules; its core is the inductive algorithm.
然后，本文将DMPH算法应用到CBT核心树，通过两者相结合，达到增强CBT的服务质量保证能力的目的。
Then this thesis puts DMPH into use in Core Based Tree (CBT), which can achieve the aim of improving service quality of CBT.
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