New Generation Focused Crawler
Main Article Content
Abstract
Vertical search engines use focused crawlers as their key component and develops some specific algorithms to select web pages relevant to some pre-defined set of topics. Therefore, to effectively build up a semantic pattern for specific topics it is extremely important for such search engines. Crawlers are software which can traverse the internet and retrieve web pages by hyperlinks. A focused crawler traverses the web selecting out relevant pages to a predefined topic and neglecting those out for prioritizing the URL queue. While surfing the internet it is difficult to deal with method that analyzes the reference-information among the pages, relevant pages and to predict which links lead to quality pages. In our proposed work we calculate the link score based on page rank and average relevancy score of parent pages (because we know that the parent page is always related to child page which means that for detailed information any author prefers the child page). After finding out the link score, we compare the link score with some threshold value. If link score is greater than or equal to threshold value, then it is relevant link. Otherwise, it is discarded. Focused crawler first fetches that link which has greater value compared to all link scores and threshold
Â
Keywords: vertical search engine, focused crawler, page rank, vector space model
Downloads
Article Details
COPYRIGHT
Submission of a manuscript implies: that the work described has not been published before, that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
- The journal allows the author(s) to retain publishing rights without restrictions.
- The journal allows the author(s) to hold the copyright without restrictions.