twig_pattern_matching_有道手机词典

1.In XML database, twig pattern matching is the core of XML query processing and is important for improving the query efficiency.
在XML数据库中，小枝模式查询是XML查询处理的核心操作，它对于提高查询效率是很有意义的。
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2.At present, there are many algorithms for twig pattern matching, but they dont have good method to solve the twigs which have parent-child edges.
目前，已经提出了很多小枝模式匹配算法，但没有解决含有父子边的小枝模式查询。
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3.Nowadays the query optimization technique of XML databases has become a hot research topic in database field, and twig pattern matching is an important problem in XML field.
XML数据库的查询优化技术是当前数据库领域中的一个研究热点，而小枝模式匹配又是其中的一个研究重点。
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