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  2. tf–idf - Wikipedia

    en.wikipedia.org/wiki/Tf–idf

    the raw count itself: tf(t,d) = f t,d; Boolean "frequencies": tf(t,d) = 1 if t occurs in d and 0 otherwise; logarithmically scaled frequency: tf(t,d) = log (1 + f t,d); [6] augmented frequency, to prevent a bias towards longer documents, e.g. raw frequency divided by the raw frequency of the most frequently occurring term in the document:

  3. Cardinality (data modeling) - Wikipedia

    en.wikipedia.org/wiki/Cardinality_(data_modeling)

    A one-to-many relationship between records in patient and records in appointment because patients can have many appointments and each appointment involves only one patient. [ 1 ] A one-to-one relationship is mostly used to split a table in two in order to provide information concisely and make it more understandable.

  4. Wikipedia : WikiProject Formula One/Tables

    en.wikipedia.org/.../Tables

    Individual cells of the table are coloured as per template:F1 driver results legend 5 The formatting of the race results for pole/fastest lap is done by using {{ F1 race position }} The contents of the Points and WCC columns are bold; the contents of the other columns are not bold

  5. List of datasets for machine-learning research - Wikipedia

    en.wikipedia.org/wiki/List_of_datasets_for...

    A dataset for NLP and climate change media researchers The dataset is made up of a number of data artifacts (JSON, JSONL & CSV text files & SQLite database) Climate news DB, Project's GitHub repository [394] ADGEfficiency Climatext Climatext is a dataset for sentence-based climate change topic detection. HF dataset [395] University of Zurich ...

  6. Count data - Wikipedia

    en.wikipedia.org/wiki/Count_data

    Graphical examination of count data may be aided by the use of data transformations chosen to have the property of stabilising the sample variance. In particular, the square root transformation might be used when data can be approximated by a Poisson distribution (although other transformation have modestly improved properties), while an inverse sine transformation is available when a binomial ...

  7. Big data - Wikipedia

    en.wikipedia.org/wiki/Big_data

    According to one estimate, one-third of the globally stored information is in the form of alphanumeric text and still image data, [61] which is the format most useful for most big data applications. This also shows the potential of yet unused data (i.e. in the form of video and audio content).

  8. HuffPost Data

    projects.huffingtonpost.com

    Poison Profits. A HuffPost / WNYC investigation into lead contamination in New York City

  9. Frequency (statistics) - Wikipedia

    en.wikipedia.org/wiki/Frequency_(statistics)

    A frequency distribution table is an arrangement of the values that one or more variables take in a sample. Each entry in the table contains the frequency or count of the occurrences of values within a particular group or interval, and in this way, the table summarizes the distribution of values in the sample.