Geographically focused collaborative crawling

A collaborative crawler is a group of crawling nodes, in which each crawling node is responsible for a specific portion of the web. We study the problem of collecting geographically-aware pages using collaborative crawling strategies. We first propose several collaborative crawling strategies for the geographically focused crawling, whose goal is to collect web pages about specified geographic locations, by considering features like URL address of page, content of page, extended anchor text of link, and others. Later, we propose various evaluation criteria to qualify the performance of such crawling strategies. Finally, we experimentally study our crawling strategies by crawling the real web data showing that some of our crawling strategies greatly outperform the simple URL-hash based partition collaborative crawling, in which the crawling assignments are determined according to the hash-value computation over URLs. More precisely, features like URL address of page and extended anchor...

• Type: Conference
• Year: 2006
• Where: WWW
• Authors: Weizheng Gao, Hyun Chul Lee, Yingbo Miao
• Keywords: Collaborative Crawling Strategies, Crawling Assignments, Crawling Node, Internet Technology, WWW 2006