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  2. Word search - Wikipedia

    en.wikipedia.org/wiki/Word_search

    A word search. A word search, word find, word seek, word sleuth or mystery word puzzle is a word game that consists of the letters of words placed in a grid, which usually has a rectangular or square shape. The objective of this puzzle is to find and mark all the words hidden inside the box. The words may be placed horizontally, vertically, or ...

  3. WordMasters - Wikipedia

    en.wikipedia.org/wiki/WordMasters

    The WordMasters Challenge is a vocabulary competition for students in grades 3 - 8. The assigned words increase in difficulty at each grade level. The "Challenge" tests take place three times a year in the students' classrooms and are scored on how well the kids are able to use their knowledge of the words to complete twenty analogies.

  4. Keyword extraction - Wikipedia

    en.wikipedia.org/wiki/Keyword_extraction

    keyword extraction (keywords are chosen from words that are explicitly mentioned in original text). Methods for automatic keyword extraction can be supervised, semi-supervised, or unsupervised. [ 4 ] Unsupervised methods can be further divided into simple statistics, linguistics or graph-based, or ensemble methods that combine some or most of ...

  5. Text mining - Wikipedia

    en.wikipedia.org/wiki/Text_mining

    Text mining is being used by large media companies, such as the Tribune Company, to clarify information and to provide readers with greater search experiences, which in turn increases site "stickiness" and revenue. Additionally, on the back end, editors are benefiting by being able to share, associate and package news across properties ...

  6. Mining - Wikipedia

    en.wikipedia.org/wiki/Mining

    Mining of sulfur from a deposit at the edge of Ijen's crater lake, Indonesia. Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.

  7. Autumn - Wikipedia

    en.wikipedia.org/wiki/Autumn

    The alternative word fall for the season traces its origins to old Germanic languages. The exact derivation is unclear, with the Old English fiæll or feallan and the Old Norse fall all being possible candidates. However, these words all have the meaning "to fall from a height" and are clearly derived either from a common root or from each other.

  8. Mineral processing - Wikipedia

    en.wikipedia.org/wiki/Mineral_processing

    Crushing, a form of comminution, one of the unit operations of mineral processing. Mineral processing is the process of separating commercially valuable minerals from their ores in the field of extractive metallurgy. [1]

  9. 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]

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