Naveen Pandrangi

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Efficient and effective change detection and notification is becoming increasingly important for environments such as WWW and distributed heterogeneous systems. Change detection for structured data has been studied extensively. Change detection and notification for unstructured data in the form of html and XML documents is the goal of this work. The(More)
The World Wide Web is an omni-present and an ever-expanding source of data. Data on the web is constantly increasing and changing. Many a times, users are interested in specific changes to the data on the web. Currently, in order to detect changes of interest, users have to poll the pages periodically and check for the changes of interest. WebVigiL is a(More)
This paper is aimed at the study of quantitative measures of the relation between Web structure age and quality of Web pages Quality is studied from di erent link based metrics and their relationship with the structure of the Web and the last modi cation time of a page We show that as expected Pagerank is biased against new pages As a subproduct we propose(More)
This work was supported, in part, by the Office of Naval Research & the SPAWAR System Center–San Diego & by the Rome Laboratory (grant F30602-01-2-05430), and by NSF (grant IIS-0123730). ABSTRACT Data on the web is constantly increasing. Many a times, users are interested in specific changes to the data on the web. Currently, in order to detect changes of(More)
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