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NaN issue in DR_discriminator.py file #2

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Santhanalakshmimano opened this issue Apr 3, 2019 · 4 comments
Closed

NaN issue in DR_discriminator.py file #2

Santhanalakshmimano opened this issue Apr 3, 2019 · 4 comments

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@Santhanalakshmimano
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Santhanalakshmimano commented Apr 3, 2019 •
edited

While testing KDD dataset, in DR_discriminator.py file I am getting nan values for reconstruction error, and G_samples are also nan.. Do anybody knows why this happens ?
@Santhanalakshmimano Santhanalakshmimano changed the title how to get the anomaly score in testing file AD_invert.py NaN issue in DR_discriminator.py file Apr 16, 2019
@sathyapatel
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Hi Santhanalakshmi,
I am facing the same issue on kdd99 test data.. Heuristic sigma is 0 and reconstruction error is NAN..Please let me know, if you solved this issue

@Santhanalakshmimano
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Hi Sathyapatel,
The issue is due to the distance we calculate. Just change the line
distances = np.sqrt(X_sqnorms.reshape(-1, 1) - 2 * XY + Y_sqnorms.reshape(1, -1)) to
distances = np.sqrt(((X[:, None] - Y[:, :, None]) ** 2).sum(0))

@Adapter525
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why you change edistances in this way? thank you

@Adapter525
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@Santhanalakshmimano why you change edistances in this way? thank you

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@sathyapatel @Santhanalakshmimano @Adapter525