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Focused Web Crawler with Page Change Detection Policy

International Conference and Workshop on Emerging Trends in Technology
© 2011 by IJCA Journal
Number 9 - Article 9
Year of Publication: 2011
Swati Mali
B.B. Meshram

Swati Mali and B B Meshram. Focused Web Crawler with Page Change Detection Policy. IJCA Proceedings on International Conference and workshop on Emerging Trends in Technology (ICWET) (9):51-56, 2011. Full text available. BibTeX

	author = {Swati Mali and B.B. Meshram},
	title = {Focused Web Crawler with Page Change Detection Policy},
	journal = {IJCA Proceedings on International Conference and workshop on Emerging Trends in Technology (ICWET)},
	year = {2011},
	number = {9},
	pages = {51-56},
	note = {Full text available}


Focused crawlers aim to search only the subset of the web related to a specific topic, and offer a potential solution to the problem. The major problem is how to retrieve the maximal set of relevant and quality pages. In this paper, We propose an architecture that concentrates more over page selection policy and page revisit policy The three-step algorithm for page refreshment serves the purpose. The first layer contributes to decision of page relevance using two methods. The second layer checks for whether the structure of a web page has been changed or not, the text content has been altered or whether an image is changed. Also a minor variation to the method of prioritizing URLs on the basis of forward link count has been discussed to accommodate the purpose of frequency of update. And finally, the third layer helps to update the URL repository.


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