RuntimeWarning: invalid value encountered in

[ST. nonstop]

D:\AnacondaPython\python.exe E:/研二文档/test2/similarty/similarity.py

D:\AnacondaPython\lib\site-packages\gensim\utils.py:1167: UserWarning: detected Windows; aliasing chunkize to chunkize_serial

  warnings.warn("detected Windows; aliasing chunkize to chunkize_serial")

Building prefix dict from the default dictionary ...

Loading model from cache C:\Users\dcp\AppData\Local\Temp\jieba.cache

Loading model cost 2.883 seconds.

Prefix dict has been built succesfully.

D:\AnacondaPython\lib\site-packages\gensim\models\ldamodel.py:609: RuntimeWarning: overflow encountered in exp2

  perwordbound, np.exp2(-perwordbound), len(chunk), corpus_words

D:\AnacondaPython\lib\site-packages\gensim\models\ldamodel.py:522: RuntimeWarning: overflow encountered in true_divide

  gammad = self.alpha + expElogthetad * np.dot(cts / phinorm, expElogbetad.T)

D:\AnacondaPython\lib\site-packages\gensim\matutils.py:995: RuntimeWarning: invalid value encountered in subtract

  result = psi(alpha) - psi(np.sum(alpha))

D:\AnacondaPython\lib\site-packages\gensim\models\ldamodel.py:528: RuntimeWarning: invalid value encountered in less

  if meanchange < self.gamma_threshold:

D:\AnacondaPython\lib\site-packages\numpy\core\_methods.py:26: RuntimeWarning: invalid value encountered in reduce

  return umr_maximum(a, axis, None, out, keepdims)

lda.log_perplexity for corpus with num_topics =80: nan

[Ivan Menshikh]

Hello,

so, please share your code & data & model, we need to reproduce this error first