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  2. List of text mining methods - Wikipedia

    en.wikipedia.org/wiki/List_of_text_mining_methods

    Different text mining methods are used based on their suitability for a data set.Text mining is the process of extracting data from unstructured text and finding patterns or relations.

  3. Cycle detection - Wikipedia

    en.wikipedia.org/wiki/Cycle_detection

    In computer science, cycle detection or cycle finding is the algorithmic problem of finding a cycle in a sequence of iterated function values. For any function f that maps a finite set S to itself, and any initial value x 0 in S , the sequence of iterated function values

  4. Seasonality - Wikipedia

    en.wikipedia.org/wiki/Seasonality

    In time series data, seasonality refers to the trends that occur at specific regular intervals less than a year, such as weekly, monthly, or quarterly. Seasonality may be caused by various factors, such as weather, vacation, and holidays [1] and consists of periodic, repetitive, and generally regular and predictable patterns in the levels [2] of a time series.

  5. Seasonal subseries plot - Wikipedia

    en.wikipedia.org/wiki/Seasonal_subseries_plot

    Seasonal subseries plots enables the underlying seasonal pattern to be seen clearly, and also shows the changes in seasonality over time. [2] Especially, it allows to detect changes between different seasons, changes within a particular season over time. However, this plot is only useful if the period of the seasonality is already known. In ...

  6. Decomposition of time series - Wikipedia

    en.wikipedia.org/wiki/Decomposition_of_time_series

    , the seasonal component at time t, reflecting seasonality (seasonal variation). A seasonal pattern exists when a time series is influenced by seasonal factors. Seasonality occurs over a fixed and known period (e.g., the quarter of the year, the month, or day of the week). [1]

  7. Seasonal adjustment - Wikipedia

    en.wikipedia.org/wiki/Seasonal_adjustment

    Seasonal adjustment or deseasonalization is a statistical method for removing the seasonal component of a time series. It is usually done when wanting to analyse the trend, and cyclical deviations from trend, of a time series independently of the seasonal components.

  8. Category:Seasonality - Wikipedia

    en.wikipedia.org/wiki/Category:Seasonality

    Pages in category "Seasonality" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. ...

  9. Quadtree - Wikipedia

    en.wikipedia.org/wiki/Quadtree

    Efficient collision detection in two dimensions; View frustum culling of terrain data; Storing sparse data, such as a formatting information for a spreadsheet [13] or for some matrix calculations [citation needed] Solution of multidimensional fields (computational fluid dynamics, electromagnetism) Conway's Game of Life simulation program. [14]