Title

Pi-Web Join in a Web Warehouse

Publication Type

Conference Proceeding Article

Publication Date

4-1999

Abstract

With the enormous amount of data stored in the World Wide Web, it is increasingly important to design and develop powerful web warehousing tools. The key objective of our web warehousing project, called WHOWEDA (Warehouse of Web Data), is to design and implement a web warehouse that materializes and manages useful information from the Web. In this paper, we introduce the concept of Pi-web join in the context of WHOWEDA. Pi-web join operator is a web information manipulation operator to combine relevant web information residing in two web tables. Informally, it is the combination of web join and web project operators which filter out irrelevant information from a joined web table. In this paper, we show how to construct the Pi-joined web table and its schema. We also highlight the benefits of the Pi-web join operator.

Discipline

Databases and Information Systems

Research Areas

Data Management and Analytics

Publication

Proceedings of the 6th International Conference on Database Systems for Advanced Applications (DASFAA '99)

First Page

255

Last Page

262

ISBN

9780769500843

Publisher

ACM

City or Country

Hsinchu, Taiwan, Apr 19-21

Additional URL

http://dl.acm.org/citation.cfm?id=703327