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  2. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    Letter frequency is the number of times letters of the alphabet appear on average in written language.Letter frequency analysis dates back to the Arab mathematician Al-Kindi (c. AD 801–873), who formally developed the method to break ciphers.

  3. Hapax legomenon - Wikipedia

    en.wikipedia.org/wiki/Hapax_legomenon

    Hapax legomenon refers to the appearance of a word or an expression in a body of text, not to either its origin or its prevalence in speech. It thus differs from a nonce word, which may never be recorded, may find currency and may be widely recorded, or may appear several times in the work which coins it, and so on.

  4. Keyword density - Wikipedia

    en.wikipedia.org/wiki/Keyword_density

    Keyword density is the percentage of times a keyword or phrase appears on a web page compared to the total number of words on the page. In the context of search engine optimization, keyword density can be used to determine whether a web page is relevant to a specified keyword or keyword phrase.

  5. Zipf's law - Wikipedia

    en.wikipedia.org/wiki/Zipf's_law

    In many texts in human languages, word frequencies approximately follow a Zipf distribution with exponent s close to 1; that is, the most common word occurs about n times the n-th most common one. The actual rank-frequency plot of a natural language text deviates in some extent from the ideal Zipf distribution, especially at the two ends of the ...

  6. Heterogram (literature) - Wikipedia

    en.wikipedia.org/wiki/Heterogram_(literature)

    [6] [2] [7] Multiple terms have been used to describe words where each letter used appears a certain number of times. For example, a word where every featured letter appears twice, like "Shanghaiings", might be called a pair isogram , [ 8 ] a second-order isogram , [ 2 ] or a 2-isogram .

  7. List of films that most frequently use the word - Wikipedia

    en.wikipedia.org/wiki/List_of_films_that_most...

    "Dispatch From L.A.: Four-Letter Word Film Explores the Etymology of an Expletive". IndieWire. Archived from the original on May 12, 2006 When all is said and done, the word Fuck is used 629 times in the film. Filmy Rating Archived March 1, 2022, at the Wayback Machine — source for profanity counts

  8. tf–idf - Wikipedia

    en.wikipedia.org/wiki/Tf–idf

    where f t,d is the raw count of a term in a document, i.e., the number of times that term t occurs in document d. ... In each document, the word "this" appears once ...

  9. Most common words in English - Wikipedia

    en.wikipedia.org/wiki/Most_common_words_in_English

    As an example, "out" occurs in at least 560 phrasal verbs [7] and appears in nearly 1700 multiword expressions. [ 8 ] The table also includes frequencies from other corpora.