%0 Conference Paper %B Data Engineering, International Conference on %D 2000 %T Web Query Optimizer %A Zadorozhny,Vladimir %A Bright,Laura %A Raschid, Louiqa %A Urhan,Tolga %A Vidal,Maria Esther %X 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. %B Data Engineering, International Conference on %I IEEE Computer Society %C Los Alamitos, CA, USA %P 661 - 661 %8 2000/// %G eng %R http://doi.ieeecomputersociety.org/10.1109/ICDE.2000.839484