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分析了异质数据源在互联网上广泛存在的原因及由此给信息检索用户带来的不便,阐述了解决跨异质数据源检索的原理,并给出了一个应用实例。
The reason why heterogeneous data sources exist widely on the Internet and the inconvenience to information retrieval users are analyzed. The principle of searching for heterogeneous data sources is expounded and an application example is given.