hpandeycodeit commented on a change in pull request #432: MADLIB-1351 : Added
stopping criteria on perplexity to LDA
URL: https://github.com/apache/madlib/pull/432#discussion_r328821873
##########
File path: src/ports/postgres/modules/lda/test/lda.sql_in
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@@ -288,3 +288,126 @@ CREATE OR REPLACE FUNCTION validate_lda_output() RETURNS
integer AS $$
$$ LANGUAGE plpgsql;
select validate_lda_output();
+
+
+---------- TEST CASES FOR PERPLEXITY ----------
+
+drop table if exists lda_model, lda_output_data;
+SELECT lda_train(
+ 'lda_training',
+ 'lda_model',
+ 'lda_output_data',
+ 20, 5, 2, 10, 0.01, 2, .2);
+
+SELECT assert(perplexity_iters = '{2}', 'Number of Perplexity iterations are
wrong') from lda_model;
Review comment:
Added the test cases for above as discussed.
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