Boolean Query Mapping Across Heterogeneous Information Sources (Extended Version)

@inproceedings{Chang1997BooleanQM,
  title={Boolean Query Mapping Across Heterogeneous Information Sources (Extended Version)},
  author={Kevin Chen-Chuan Chang and Hector Garcia-Molina and Andreas Paepcke},
  year={1997}
}
Searching over heterogeneous information sources is di cult because of the non-uniform query languages. Our approach is to allow a user to compose Boolean queries in one rich front-end language. For each user query and target source, we transform the user query into a subsuming query that can be supported by the source but that may return extra documents. The results are then processed by a lter query to yield the correct nal result. In this paper we introduce the architecture and associated… CONTINUE READING

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