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  2. pandas (software) - Wikipedia

    en.wikipedia.org/wiki/Pandas_(software)

    Pandas (styled as pandas) is a software library written for the Python programming language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time series .

  3. Count data - Wikipedia

    en.wikipedia.org/wiki/Count_data

    The statistical treatment of count data is distinct from that of binary data, in which the observations can take only two values, usually represented by 0 and 1, and from ordinal data, which may also consist of integers but where the individual values fall on an arbitrary scale and only the relative ranking is important. [example needed]

  4. Count-distinct problem - Wikipedia

    en.wikipedia.org/wiki/Count-distinct_problem

    In computer science, the count-distinct problem [1] (also known in applied mathematics as the cardinality estimation problem) is the problem of finding the number of distinct elements in a data stream with repeated elements. This is a well-known problem with numerous applications.

  5. Document-term matrix - Wikipedia

    en.wikipedia.org/wiki/Document-term_matrix

    Note that, unlike representing a document as just a token-count list, the document-term matrix includes all terms in the corpus (i.e. the corpus vocabulary), which is why there are zero-counts for terms in the corpus which do not also occur in a specific document. For this reason, document-term matrices are usually stored in a sparse matrix format.

  6. Wisconsin police say school rampage motive a 'combination of ...

    www.aol.com/news/wisconsin-school-shooting...

    MADISON, Wis. — A "combination of factors" motivated the deadly shooting at a private Christian school in Wisconsin that killed two people and injured six others, Madison police said Tuesday.

  7. tf–idf - Wikipedia

    en.wikipedia.org/wiki/Tf–idf

    A number of term-weighting schemes have derived from tf–idf. One of them is TF–PDF (term frequency * proportional document frequency). [14] TF–PDF was introduced in 2001 in the context of identifying emerging topics in the media. The PDF component measures the difference of how often a term occurs in different domains.

  8. Luigi Mangione believed killing UnitedHealthcare CEO Brian Thompson to be a "symbolic takedown" and "a direct challenge" to the healthcare company’s corruption and “power games,” according ...

  9. This Is Martha Stewart’s Favorite Butter for Baking - AOL

    www.aol.com/martha-stewart-favorite-butter...

    For example, if I purchased eight ounces of unsalted Plugrà butter from Whole Foods in Brooklyn, New York, it would cost $4.79. In comparison, the same amount of another premium butter, ...