Detecting and representing relevant web deltas using web join

• Main Authors: BHOWMICK, Sourav S., NG, Wee-Keong, Madria, Sanjay Kumar, LIM, Ee Peng
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2000
• Subjects: Web deltas; Web warehousing; Web tables; Web join; Outer web join; Databases and Information Systems; Numerical Analysis and Scientific Computing
• Online Access: https://ink.library.smu.edu.sg/sis_research/1006; http://doi.ieeecomputersociety.org/10.1109/ICDCS.2000.840935
• Institution: Singapore Management University

In this paper, we show how to detect and represent web deltas, i.e., changes in Web information, that are relevant to a user's query in the context of our web warehousing system called WHOWEDA (Warehouse of Web Data). In WHOWEDA, Web information is materialized views stored in web tables and can be manipulated and analyzed using a set of web algebraic operators. In this paper, we present a mechanism to detect relevant web deltas using web join and outer web join. We show how to represent these changes using delta web tables.