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.
Citation:
Vladimir Zadorozhny, Laura Bright, Louiqa Raschid, Tolga Urhan, Maria Esther Vidal, "Web Query Optimizer," icde, pp.661, 16th International Conference on Data Engineering (ICDE'00), 2000