Commit 59743fc4 authored by Eugene Brevdo's avatar Eugene Brevdo Committed by TensorFlower Gardener
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edit_distance returns inf in normalized mode when the truth sequence is empty... 

edit_distance returns inf in normalized mode when the truth sequence is empty and hypothesis is not.

otherwise if both are empty, it returns 0

cleared up the code & unit tests.
Change: 124617418
parent 667493d5
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