Keyword stuffing
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Keyword stuffing is considered to be an unethical Search engine optimization (SEO) technique. Keyword stuffing occurs when a web page is loaded with keywords in the meta tags or in content. The repetition of words in meta tags, may explain … Read More

Keyword density
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Keyword density is the percentage of words on a web page that match a specified set of keywords. In the context of search engine optimization keyword density can be used as a factor in determining whether a web page is … Read More

Clustering and relevance in SE
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There is also much confusion between the notions of similarity and relevance. These are not the same thing. It has often been said by many companies doing topic clustering, document filtering, and other such applications that their algorithms function by … Read More

Algorithms for relevance in SE
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In the simplest case, relevance can be calculated by examining how many times a query term appears in a document (term frequency), possibly combined with how discriminative that query term is across the searched collection (often called Term Frequency-Inverse Document … Read More

Relevance
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In computer science, and particularly in search engines, relevance is a numerical score assigned to a search result, representing how well the result meets the information need of the user that issued the search query. In many cases, a result’s … Read More