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Re: data mining - predictie dupa cheie

  •  08-04-2009, 8:42 AM

    Re: data mining - predictie dupa cheie

    salut, Andrei

    Incearca sa creezi un model ca mai jos:
    CREATE MINING MODEL Currency
    (
    IDMoneda TEXT KEY,
    DataValorii DATE KEY TIME,
    Valoare DOUBLE PREDICT
    )USING Microsoft_Decision_Trees

    (poti sa-l creezi cu DMX dar si cu BIDS)

    Predictia ar trebui sa arate cam asa:
    SELECT PredictTimeSeries([Currency], 20) AS Predictie FROM [Currency]
    WHERE [IDMoneda]='EUR'

    O obsevatie: daca folosesti PREDICT pentru Valoare atunci algoritmul analizeaza si corelatiile intre serii (intre monede diferite). Daca folosesti PREDICT_ONLY, atunci fiecare serie e analizata independent
    b o g d a n c r i v a t
    [sql server|data mining]
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