A REVIEW PAPER ON FOCUSED WEB CRAWLING

Data mining is the process of analyzing data from different perspectives and summarizing it into useful information. The patterns, associations, or relationships among all collected data can provide information which can be converted into knowledge about historical patterns and future trends. A Web crawler may also be Web search engines and some other sites use Web crawling or spidering software to update their web content or indexes of others sites web content. Web crawlers can copy all the pages they visit for later processing by a search engine that indexes the downloaded pages so that users can search them much more quickly.