Stanford InfoLab Publication Server

Finding replicated web collections

Cho, Junghoo and Shivakumar, Narayanan and Garcia-Molina, Hector (1999) Finding replicated web collections. Technical Report. Stanford InfoLab.




Many web documents (such as JAVA FAQs) are being replicated on the Internet. Often entire document collections (such as hyperlinked Linux manuals) are being replicated many times. In this paper, we make the case for identifying replicated documents and collections to improve web crawlers, archivers, and ranking functions used in search engines. The paper describes how to efficiently identify replicated documents and hyperlinked document collections. The challenge is to identify these replicas from an input data set of several tens of millions of web pages and several hundreds of gigabytes of textual data. We also present two real-life case studies where we used replication information to improve a crawler and a search engine. We report these results for a data set of 25 million web pages (about 150 gigabytes of HTML data) crawled from the web.

Item Type:Techreport (Technical Report)
Additional Information:Previous number = SIDL-1999-0118
Subjects:Computer Science > Digital Libraries
Projects:Digital Libraries
Related URLs:Project Homepage
ID Code:420
Deposited By:Import Account
Deposited On:30 Oct 2001 16:00
Last Modified:27 Dec 2008 21:11

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