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SmartCrawler: A Two-stage Crawler for Efficiently Harvesting Deep- Wev Interfaces

SmartCrawler: A Two-stage Crawler for Efficiently Harvesting Deep- Wev Interfaces

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 SmartCrawler: A Two-stage Crawler forEfficiently Harvesting Deep-Web Interfaces

 As deep web grows at a very fast pace, there has been increased interest in techniques that help efficiently locate deep-web interfaces. However, due to the large volume of web resources and the dynamic nature of deep web, achieving wide coverage and high efficiency is a challenging issue. We propose a two-stage framework, namely SmartCrawler, for efficient harvesting deep web interfaces. In the first stage, SmartCrawler performs site-based searching for center pages with the help of search engines, avoiding visiting a large number of pages. To achieve more accurate results for a focused crawl, SmartCrawler ranks websites to prioritize highly relevant ones for a given topic. In the second stage, SmartCrawler achieves fast in-site searching by excavating most relevant links with an adaptive link-ranking. To eliminate bias on visiting some highly relevant links in hidden web directories, we design a link tree data structure to achieve wider coverage for a website. Our experimental results on a set of representative domains show the agility and accuracy of our proposed crawler framework, which ef?ciently retrieves deep-web interfaces from large-scale sites and achieves higher harvest rates than other crawlers.


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  • Model: PROJ5442
  • 999 Units in Stock
  • Manufactured by: ClickMyProjects

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This product was added to our catalog on Monday 19 September, 2016.