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  2. Canonical link element - Wikipedia

    en.wikipedia.org/wiki/Canonical_link_element

    A canonical link element is an HTML element that helps webmasters prevent duplicate content issues in search engine optimization by specifying the "canonical" or "preferred" version of a web page. It is described in RFC 6596, which went live in April 2012. [1] [2]

  3. Duplicate content - Wikipedia

    en.wikipedia.org/wiki/Duplicate_content

    Duplicate content is a term used in the field of search engine optimization to describe content that appears on more than one web page. The duplicate content can be substantial parts of the content within or across domains and can be either exactly duplicate or closely similar. [ 1 ]

  4. Content similarity detection - Wikipedia

    en.wikipedia.org/wiki/Content_similarity_detection

    The previous classification was developed for code refactoring, and not for academic plagiarism detection (an important goal of refactoring is to avoid duplicate code, referred to as code clones in the literature). The above approaches are effective against different levels of similarity; low-level similarity refers to identical text, while ...

  5. Wikipedia:Duplication detector - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Duplication_detector

    For source documents containing scattered numerals, you may have to check "Remove numbers" to get the best matches. You have the option of removing quotations from matches. Duplication detector can see article text hidden by templates like {}, since the text is still in the HTML page source, but cannot see text that has been removed. You need ...

  6. URI normalization - Wikipedia

    en.wikipedia.org/wiki/URI_normalization

    The following normalizations are described in RFC 3986 [1] to result in equivalent URIs: . Converting percent-encoded triplets to uppercase. The hexadecimal digits within a percent-encoding triplet of the URI (e.g., %3a versus %3A) are case-insensitive and therefore should be normalized to use uppercase letters for the digits A-F. [2] Example:

  7. Don't repeat yourself - Wikipedia

    en.wikipedia.org/wiki/Don't_repeat_yourself

    "Don't repeat yourself" (DRY), also known as "duplication is evil", is a principle of software development aimed at reducing repetition of information which is likely to change, replacing it with abstractions that are less likely to change, or using data normalization which avoids redundancy in the first place.

  8. Wikipedia:Duplicated sections - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Duplicated_sections

    A script was run on an offline copy of the database. First, it isolated all pages with duplicate headers. Then, it sliced each remaining page into three-word "chains" or "triplets" and looked to see how many of these chains appeared more than once. The percentage of repeated chains are reported for each article.

  9. HTML - Wikipedia

    en.wikipedia.org/wiki/HTML

    HTML element content categories. HTML documents imply a structure of nested HTML elements. These are indicated in the document by HTML tags, enclosed in angle brackets thus: < p >. [73] [better source needed] In the simple, general case, the extent of an element is indicated by a pair of tags: a "start tag" < p > and "end tag" </ p >. The text ...