A focused crawler is a web crawler that collects Web pages that satisfy some specific property, by carefully prioritizing the crawl frontier
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The ideal focused crawler retrieves the maximal set of relevant pages while simultaneously traversing the minimal number of irrelevant documents on the web.
Abstract— A basic web crawler can be thought of as a web robot which scans through the web and downloads the pages which can be reached by the links and ...
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A focused crawler is a web crawler that attempts to download only web pages that are relevant to a predefined topic or set of topics.
May 17, 1999 · A focused crawler is to selectively seek out pages that are relevant to a pre-defined set of topics.
Duration: 42:46
Posted: Jul 17, 2019
Posted: Jul 17, 2019
Focused crawlers collect specific web pages based on criteria like domain or topic. Learn about their use of web directories, indexes, and backlinks.
Figure 1 shows a structure of a simple focused crawler. The crawler is usually started with a set of seed pages that indicate the type of content the user ...
May 1, 2013 · Starting from seed URLs, a crawler will systematically download all links branching outward, and then the links branching from those web pages.