"Neural Networks NaN Error"

mksaad

Hello,

I am try to train my Neural Network on the data set at http://sites.google.com/site/motazsite/teaching/data-mining-discussion/trndataCSV.csv

But I got the error below.

Process failed: operator cannot be executed (Trying to assign invalud number to matrix: NaN)

I trained many NN without any problem. What is wrong with this dataset?


Thanks,
Motaz

haddock

Greetings Motaz,

I don't think there is much wrong with the data, as the following works for me..

<operator name="Root" class="Process" expanded="yes">
    <operator name="ExcelExampleSource" class="ExcelExampleSource">
        <parameter key="excel_file"	value="trndataCSV.csv"/>
        <parameter key="first_row_as_names"	value="true"/>
        <parameter key="create_label"	value="true"/>
        <parameter key="label_column"	value="15"/>
    </operator>
    <operator name="ID3Numerical" class="ID3Numerical">
        <parameter key="keep_example_set"	value="true"/>
    </operator>
    <operator name="ModelApplier" class="ModelApplier">
        <list key="application_parameters">
        </list>
    </operator>
    <operator name="ClassificationPerformance" class="ClassificationPerformance">
        <parameter key="accuracy"	value="true"/>
        <list key="class_weights">
        </list>
    </operator>
</operator>

So it has more to do with the learner not liking the data, in particular not finding a number where it wants one; so changing the learner, as above, looks like the way to go. Hope that helps.