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This was prepared for tutorial at HPDC-4 Conference
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It starts with motivation and Identification of four components of a Web Search system -- Information Gathering and Filtering, Indexing, Searching and User Interface
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Web Robots (gatherers) are reviewed followed by
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Discussion in detail of 3 examples Lycos, FreeWAIS and Harvest -- the associated demonstrations also include Oracle Free text search
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We end with discussion of future technologies including natural language frontends, distributed queries, metadata, caching and artificial intelligence
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