Fix incorrect perplexity testing

cloudml / zen

Zen aims to provide the largest scale and the most efficient machine learning platform on top of Spark, including but not limited to logistic regression, latent dirichilet allocation, factorization machines and DNN.

Apache License 2.0

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Fix incorrect perplexity testing #72

Closed titsuki closed 5 years ago

titsuki commented 5 years ago

Hi, I found some incorrect testings in LDASuite. In general, the perplexity at the end of a set of iterations is better than the initial one. However, this test checks that in the reverse order.

Cheers,

titsuki commented 5 years ago

This PR partially fix #54

titsuki commented 5 years ago

Thanks for your review!