kaknikhil commented on issue #432: MADLIB-1351 : Added stopping criteria on perplexity to LDA URL: https://github.com/apache/madlib/pull/432#issuecomment-549962637 @hpandeycodeit We should test cases for the following scenarios (not sure if we already have tests for some of these) : 1. If evaluate_every <=0, assert that there are no perplexity values. 1. If tolerance == 0, assert that we don't stop early. 1. All permutations of the interface with evaluate_every and tolerance being passed as NULL and/or not passed at all to make sure we default the values as expected.
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