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The MetaCrawler Architecture for Resource Aggregation on the Web

The MetaCrawler Softbot is a parallel Web search service that has been available at the University of Washington since June of 1995. It provides users with a single interface with which they can query popular general-purpose Web search services, such as Lycos[6] and AltaVista[1], and has some sophisticated features that allow it to obtain results of much higher quality than simply regurgitating the output from each search service. In this article, we brie y outline the motivation for MetaCrawler and highlight previous work, and then discuss the architecture of MetaCrawler and how it enables MetaCrawler to perform well and to scale and adapt to a dynamic Internet.

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