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

The relationship between SEO and the search engines
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Search engine operators became interested in the SEO community in the late 1990s. A number of high profile SEO community leaders established contractual relationships with search engines for advertising and consulting purposes. These early contacts led to an amelioration of … Read More

Early search engines
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SEO began in the mid-1990s, as the first search engines were cataloging the early Web. Initially, all a webmaster needed to do was submit a site to the various engines which would run spiders, programs to “crawl” the site, and … Read More