›—31 œ‘—œ‘ 3.7

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Transcript of  ›—31 œ‘—œ‘ 3.7

  • 31 3:

    3.7: WEKA

  • A.

    1.

    1.

    2.

    2. WEKA

    1.

    2.

    3.

    4.

    5.

    1.

    2. -

    .

    1.

    2 , 31, 3.7: WEKA

  • A. 1. 1.

    3 , 31, 3.7: WEKA

    WEKA ,

    .

    : .

  • A. 1. 2.

    4 , 31, 3.7: WEKA

    URL : http://www.cs.waikato.ac.nz/ml/weka/ Download

    Stable Book 3rd Edition

    x86 32bit x64 64bit

  • A. 2. WEKA 1.

    5 , 31, 3.7: WEKA

    (notepad)

    @RELATION iris

    @ATTRIBUTE sepallength REAL@ATTRIBUTE sepalwidth REAL@ATTRIBUTE petallength REAL@ATTRIBUTE petalwidth REAL

    @ATTRIBUTE class {Iris-setosa,Iris-versicolor,Iris-virginica}

    @DATA5.1,3.5,1.4,0.2,Iris-setosa4.9,3.0,1.4,0.2,Iris-setosa4.7,3.2,1.3,0.2,Iris-setosa.........

    ( 4) (REAL, INTEGER, BOOLEAN ..)

    - .

    : - .

    .arff

  • A. 2. WEKA 2.

    6 , 31, 3.7: WEKA

    .

    . .

    . . plh31_lesson_3_7_train.arff

    WEKA:

    . plh31_lesson_3_7_test.arff

    WEKA

  • A. 2. WEKA 3.

    7 , 31, 3.7: WEKA

    :

    Explorer

  • A. 2. WEKA 4.

    8 , 31, 3.7: WEKA

    Open File

    1

    2

    3

  • A. 2. WEKA 5.

    9 , 31, 3.7: WEKA

    1 1. tab classify

    2. functions

    3. Multilayer Perceptron

    2

    3

  • A. 2. WEKA 5.

    10 , 31, 3.7: WEKA

  • A. 2. WEKA 5.

    11 , 31, 3.7: WEKA

    ( False)

    ..: 2,3,2 3 2-3-2 Default : a=(_+_)/2

    ( )

  • A. 2. WEKA 5. :

    12 , 31, 3.7: WEKA

    arff .

    1

    2

    3

    4

    1. supplied test set

    2. Open File

    3. .

    4. Open

    5. Start

    5

  • A. 2. WEKA 5. :

    13 , 31, 3.7: WEKA

    : 187 :122 65

    :Mean Absolute Error = : /(+)

    Mean Absolute Error = =

    1

    Root Mean Squared Error = =

    Confusion Matrix: 103 73 30

    80 35 49

  • A. 2. WEKA 5. : -

    14 , 31, 3.7: WEKA

    1

    2

    1. cross-validation

    2. .

    3. Start

  • A. 2. WEKA 5. : -

    15 , 31, 3.7: WEKA

    (K-cross validation) :

    i=1,,K: To i .