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  2. KH Coder - Wikipedia

    en.wikipedia.org/wiki/KH_Coder

    Word frequency statistics, part-of-speech analysis, grouping, correlation analysis, and visualization (including histograms and clustering maps) are among the features offered by KH Coder. [ 2 ] It is well received by researchers worldwide and used in a large number of disciplines, including neuroscience , sociology , psychology , public health ...

  3. tf–idf - Wikipedia

    en.wikipedia.org/wiki/Tf–idf

    In information retrieval, tf–idf (also TF*IDF, TFIDF, TF–IDF, or Tf–idf), short for term frequency–inverse document frequency, is a measure of importance of a word to a document in a collection or corpus, adjusted for the fact that some words appear more frequently in general. [1]

  4. Frequency analysis - Wikipedia

    en.wikipedia.org/wiki/Frequency_analysis

    Frequency analysis is based on the fact that, in any given stretch of written language, certain letters and combinations of letters occur with varying frequencies. Moreover, there is a characteristic distribution of letters that is roughly the same for almost all samples of that language.

  5. WordStat - Wikipedia

    en.wikipedia.org/wiki/WordStat

    Pre-and post-processing with R and python script Analyze more than 70 languages including Chinese, Japanese, Korean, Thai. Interactive word clouds and word frequency tables can now be obtained directly on keyword retrieval and keyword-in-context (KWIC) results allowing one to quickly identify words associated with specific content categories ...

  6. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...

  7. Bag-of-words model - Wikipedia

    en.wikipedia.org/wiki/Bag-of-words_model

    It disregards word order (and thus most of syntax or grammar) but captures multiplicity. The bag-of-words model is commonly used in methods of document classification where, for example, the (frequency of) occurrence of each word is used as a feature for training a classifier. [1] It has also been used for computer vision. [2]

  8. Text mining - Wikipedia

    en.wikipedia.org/wiki/Text_mining

    Text analysis involves information retrieval, lexical analysis to study word frequency distributions, ... For Python programmers, ...

  9. Word2vec - Wikipedia

    en.wikipedia.org/wiki/Word2vec

    Word2vec is a technique in natural language processing (NLP) for obtaining vector representations of words. These vectors capture information about the meaning of the word based on the surrounding words.