διαφάνειες Data mining & big data

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  • Data Mining & Big Data

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  • Data Mining

    The actual data mining task is the automatic or semi-automatic analysis of large quantities of data to extract previously unknown interesting patterns such as groups of data records (cluster analysis), unusual records (anomaly detection) and dependencies (association rule mining).

    http://en.wikipedia.org/wiki/Data_mining

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  • Big Data Big data is an all-encompassing term for any collection of data sets so large or complex that it becomes difficult to process them using traditional data processing applications. The challenges include analysis, capture, curation, search, sharing, storage, transfer, visualization, and privacy violations. The trend to larger data sets is due to the additional information derivable from analysis of a single large set of related data, as compared to separate smaller sets with the same total amount of data, allowing correlations to be found to "spot business trends, prevent diseases, combat crime and so on."[1]

    http://en.wikipedia.org/wiki/Data_mining

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  • Data, Data Everywhere

    http://www.economist.com/node/15557443

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    http://www.economist.com/node/15557443

  • Wikipedia & Big Data

    A visualization of Wikipedia edits created by IBM. At multiple terabytes in size, the text and images of Wikipedia are a classic example of big data.

    Visualization of all editing activity by user "Pearle" on Wikipedia (Pearle is a robot). To find out more about this project, see (2007). "Visualizing Activity on Wikipedia with Chromograms". Proceedings of INTERACT.

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  • robots

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  • http://www.technologyreview.com/view/527746/how-advanced-socialbots-have-infiltrated-twitter/

  • Datasets

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  • Cleaning Data

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  • Open data

    Data.gov

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    What is all about?Data MiningSlide Number 4Big DataData, Data EverywhereWikipedia & Big DataSlide Number 8 robotsSlide Number 10DatasetsCleaning DataOpen dataSlide Number 14Slide Number 15Slide Number 16Slide Number 17Slide Number 18Slide Number 19Slide Number 20Slide Number 21