Expressive Profile Specification and Its Semantics for a Web Monitoring System

Abstract. World wide web has gained a lot of prominence with respect to information retrieval and data delivery. With such a prolific growth, a user interested in a specific change has to continuously retrieve/pull information from the web and analyze it. This results in wastage of resources and more importantly the burden is on the user. Pull-based retrieval needs to be replaced with a pushbased paradigm for efficiency and notification of relevant information in a timely manner. WebVigiL is an efficient profile-based system to monitor, retrieve, detect and notify specific changes to HTML and XML pages on the web. In this paper, we describe the expressive profile specification language along with its semantics. We also present an efficient implementation of these profiles. Finally, we present the overall architecture of the WebVigiL system and its implementation status.

• Type: Conference
• Year: 2004
• Where: ER
• Authors: Ajay Eppili, Jyoti Jacob, Alpa Sachde, Sharma Chakravarthy
• Keywords: ER 2004, Pull-based Retrieval, Specific Changes, World Wide Web