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Fixed error message when raising to negative exponent #3232 #3259

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Fixed error message when raising to negative exponent #3232 #3259

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4a220a3
tchan new feature
Oct 23, 2021
3659002
make negative ns_exponent works correctly
Oct 27, 2021
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4 changes: 2 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ community.
Features
--------

- All algorithms are **memory-independent** w.r.t. the corpus size
- All algorithms are **memory-independent** w.r.t. the corpus size
(can process input larger than RAM, streamed, out-of-core),
- **Intuitive interfaces**
- easy to plug in your own input corpus/datastream (trivial
Expand All @@ -43,7 +43,7 @@ Features

If this feature list left you scratching your head, you can first read
more about the [Vector Space Model] and [unsupervised document analysis]
on Wikipedia.
on Wikipedia.
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In the future I'd suggest leaving out, or removing at the end, unnecessary whitespace changes in documentation.


Installation
------------
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4 changes: 2 additions & 2 deletions gensim/models/word2vec.py
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Expand Up @@ -833,11 +833,11 @@ def make_cum_table(self, domain=2**31 - 1):
train_words_pow = 0.0
for word_index in range(vocab_size):
count = self.wv.get_vecattr(word_index, 'count')
train_words_pow += count**self.ns_exponent
train_words_pow += count**float(self.ns_exponent)
cumulative = 0.0
for word_index in range(vocab_size):
count = self.wv.get_vecattr(word_index, 'count')
cumulative += count**self.ns_exponent
cumulative += count**float(self.ns_exponent)
self.cum_table[word_index] = round(cumulative / train_words_pow * domain)
if len(self.cum_table) > 0:
assert self.cum_table[-1] == domain
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