Tests: Fix SmoothGrad variance check

chr5tphr / zennit

Zennit is a high-level framework in Python using PyTorch for explaining/exploring neural networks using attribution methods like LRP.

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Closed chr5tphr closed 2 years ago

chr5tphr commented 2 years ago

the SmoothGrad variance check occasionally triggered due to randomness
instead of checking the difference in variance, now the ratio of the standard deviation of the target and sample variance are checked