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Анализ Данных PowerPoint PPT Presentation


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Анализ Данных. Лекция 1 Введение в Анализ Данных. План лекции. От БД до АД Определение Анализа Данных Типы задач АД Основные понятия Основная цель: определение АД и спектра его применения. Вначале были данные. Есть база данных: Например, БД банка.

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Анализ Данных

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4210222

1


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  • :


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:

, .

, , ..

*


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  • ()

  • , ..


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  • Online Transaction Processing (OLTP)

OLTP

OLTP

  • .

  • : , , .


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OLTP

  • ( CRUD)

  • =>


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OLTP

:

OLTP ?

?


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OLTP

:

OLTP ?


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  • Online Analytical Processing (OLAP)

OLTP

OLAP

OLTP

  • .

  • : ,


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OLAP

  • , ,

  • . .


Oltp olap

OLTP OLAP

, ,

OLTP


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OLAP

:

  • :


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  • (Data Mining)

OLTP

OLAP

OLTP

Data Mining

  • :

  • ?


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OLTP

OLAP

OLTP

Data Mining

  • ,


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- , .


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:

  • - , 360

  • - ,

  • 60


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:

  • - , 360

    -

  • +

  • - ,

    -

  • +

  • 60

    -


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  • (Classification)

  • (Clustering)

  • (Associations)

  • (Visualization, Graph Mining)

  • (Sequence)

  • (Forecasting)

  • (DeviationDetection)

  • (Link Analysis)


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  • DDoS-

  • -

  • ( )


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  • Web Mining ( , )

  • Opinion Mining (whatdoestheinternetthink.net)

  • Information Retrieval ( )


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  • , .

Blablabla

,


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  • -

Blablabla


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  • - , .

: (42).txt

: 5

: 05.09.2011

Blablabla


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  • (population) - , .

  • (sample) -

50


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  • - .

  • - .

:

: 30%

: 70%

:

: 32%

: 68%


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  • - , , .

:

< 5,

I lold


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  • - .

I lold

:

+ 1


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(nominalscale) -

  • : ==, !=

    : , ,

    (dichotomousscale) - , .

    : ,


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(ordinalscale) - , , .

  • : ==, !=, >, <

    :


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(intervalscale) - , , .

  • : ==, !=, >, <, +, -

    :


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(ratioscale) - , .

  • : ==, !=, >, <, +, -, *, /

    :


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