Title :
Web query optimizer
Author :
Zadorozhny, Vladimir ; Bright, Laura ; Raschid, Louiqa ; Urhan, Tolga ; Vidal, Maria Esther
Author_Institution :
Maryland Univ., College Park, MD, USA
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
Keywords :
information resources; query processing; relational databases; rewriting systems; wide area networks; CBR tool; WQO; Web environment; Web query optimizer; WebSources; WebWrapper cost model; capability based rewriting tool; mediators; metrics; randomized relational optimizer; wide area environment; wrappers; Cost function; Database systems; Educational institutions; Electrical capacitance tomography; Feedback; Information retrieval; Prototypes; Statistics; Technological innovation; Testing;
Conference_Titel :
Data Engineering, 2000. Proceedings. 16th International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7695-0506-6
DOI :
10.1109/ICDE.2000.839484
