document: Detecting soft errors by redirection classification A soft error redirection is a URL redirection to a page that returns the HTTP status code 200 ( OK ) but has actually no relevant content to the client request . Since such redirections degrade the performance of web search engines in many ways , it is highly desirable to remove as many of them as possible . We propose a novel approach to detect soft error redirections by analyzing redirection logs collected during crawling operation . Experimental results on huge crawl data show that our measure can classify soft error redirections effectively .
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