以往的包装器主要针对仅含有一个数据块的Web页面，而对含有多个信息块的Web页面，简称MIB(Multiple Information Block), Web页面无法处理。该文提出了一个新的抽取规则，结合了基于文档结构的抽取规则和基于特征Pattern匹配的抽取规...
详细信息
以往的包装器主要针对仅含有一个数据块的Web页面，而对含有多个信息块的Web页面，简称MIB(Multiple Information Block), Web页面无法处理。该文提出了一个新的抽取规则，结合了基于文档结构的抽取规则和基于特征Pattern匹配的抽取规则的优点，能够有效地抽取MIB Web页面中的信息。
Main focus of database security research is maintaining data security and providing timely data services. Toensure security, inference attack and aggregate attack are the problems, which should be solved. But these wi...
详细信息
Main focus of database security research is maintaining data security and providing timely data services. Toensure security, inference attack and aggregate attack are the problems, which should be solved. But these will leavevolumes of data to discover some useful knowledge, and some data mining methods used in this field will bring forthsome positive or even negative results. In this paper, we survey what data mining has done on database security andpresent some open problems and possible future research directions.
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