Anchor text
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Anchor text is the visible text in a hyperlink. Anchor text is weighted (ranked) highly in search engine algorithms, because the linked text is usually relevant to the landing page. The objective of search engines is to provide highly relevant … Read More

Link popularity
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Link popularity is a measure of the quantity and quality of other web sites that link to a specific site on the World Wide Web. It is an example of the move by search engines towards off-the-page-criteria to determine quality … Read More

Web rings
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A web ring is group of related web pages linked to each other in a sequence that forms a ring. When someone searching the web stumbles across one of the web ring’s pages, they can click through to other sites … Read More

Link farm
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On the World Wide Web, a link farm is any group of web pages that all hyperlink to every other page in the group. Although some link farms can be created by hand, most are created through automated programs and … Read More

Free For All link page
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A Free For All link page (FFA) is a web page set up ostensibly to improve the search engine placement of a particular web site. Webmasters typically will use placement software to place a link to their site on hundreds … Read More

Reciprocal links
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A reciprocal link is a mutual link between two objects, commonly between two websites in order to ensure mutual traffic. Example: Alice and Bob have websites. If Bob’s website links to Alice’s website, and Alice’s website links to Bos’s website, … Read More

Link exchange
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Link Exchange (“Reciprocal Link Exchange”) is the practice of exchanging links with other websites. There are many different ways to arrange a link exchange with webmasters. The simplest way of doing it is to email another website owner and ask … Read More

Link campaigns
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Link campaigns are a form of online marketing and is also a method for search engine optimization. A business seeking to increase the number of visitors to its web site can ask its strategic partners, professional organizations, chambers of commerce, suppliers, … Read More

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

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