Web Query Optimizer

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Venue:
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Year:
2000

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Data & Knowledge Engineering - Special issue: Data integration over the Web

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Abstract

We demonstrate a Web Query Optimizer (WQO) within an architecture of mediators and wrappers, for WebSources of limited capability in a wide area environment. The WQO has several innovative features including a CBR (capability based rewriting) Tool, an enhanced randomized relational optimizer extended to a Web environment, and a WebWrapper cost model that can provide relevant metrics for accessing WebSources. The prototype has been tested against a number of WebSources.