%A Xiang Guilin,Zhang Jiangong,Chen Dingquan %T The Theory and Application of Metasearcher Retrieval AcrossHeterogeneous Data Sources %0 Journal Article %D 2002 %J Data Analysis and Knowledge Discovery %R 10.11925/infotech.1003-3513.2002.03.12 %P 40-42 %V 18 %N 3 %U {https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/abstract/article_1497.shtml} %8 2002-06-25 %X

The paper analyses the existence of heterogeneous data sources in Web, and inconvenience to information retrieval user,it elucidates the theory of information retrieval across heterogeneous data sources and gives an example .