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Classify
Predict
ClassifierFunction
PredictorFunction
ClassifierMeasurements
PredictorMeasurements
UtilityFunction
ClassPriors
ValidationSet
NominalVariables
PerformanceGoal

Machine Learning

Create a Handwritten-Digit Recognizer

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Train a digit recognizer on 100 examples from the MNIST database of handwritten digits

Train the classifier on this example:

In[1]:=

digit=Classify

2,

5,

8,

0,

2,

7,

5,

1,

3,

0,

3,

9,

6,

2,

8,

2,

0,

6,

6,

1,

1,

7,

8,

5,

0,

4,

7,

6,

0,

2,

5,

3,

1,

5,

6,

7,

5,

4,

1,

9,

3,

6,

8,

0,

9,

3,

0,

3,

7,

4,

4,

3,

8,

0,

4,

1,

3,

7,

6,

4,

7,

2,

7,

2,

5,

2,

0,

9,

8,

9,

8,

1,

6,

4,

8,

5,

8,

0,

6,

7,

4,

5,

8,

4,

3,

1,

5,

1,

9,

9,

9,

2,

4,

7,

3,

1,

9,

2,

9,

6

Out[1]=

ClassifierFunction

Input type: Image

Number of classes:

10



Use the classifier to recognize unseen digits:

In[2]:=

digit

,

,

,

,

,

,

,

,

,



Out[2]=

{0,1,2,3,4,6,6,7,6,4}

Analyze the probabilities of a misclassified example:

In[3]:=

digit[

,"TopProbabilities"]

Out[3]=

{60.42,10.42}

Related Symbols

Classify
Predict
ClassifierFunction
PredictorFunction
ClassifierMeasurements
PredictorMeasurements
UtilityFunction
ClassPriors
ValidationSet
NominalVariables
PerformanceGoal

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