[FIX] Corpus - remove dictionary and fix wrong types count on subsampled corpus #990
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## master #990 +/- ##
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+ Coverage 79.66% 79.69% +0.02%
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Files 87 87
Lines 12319 12326 +7
Branches 1617 1620 +3
==========================================
+ Hits 9814 9823 +9
+ Misses 2211 2210 -1
+ Partials 294 293 -1 |
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Issue
Fixes #920
Corpus saves a dictionary (Gensim Dictionary) which is created on first need and cached. The problem with the dictionary is that it stays the same after subsampling Corpus (creating a corpus with the subset of documents) even though the number of unique tokens changes. The most problematic is that it was used to access a number of unique tokens in Corpus at different locations in the addon. The information was incorrect after the corpus was subsampled (issue in #920).
Description of changes
Since the dictionary was primarily introduced for Topic modelling purposes and topic modelling does not use it anymore, I decided to remove it from Corpus. All pieces of code that use a dictionary can be written differently.
This PR so removes the dictionary and updates all the code that uses it.
Includes