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improve LsiModel (SVD) documentation #53

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piskvorky opened this issue Sep 18, 2011 · 1 comment
Open

improve LsiModel (SVD) documentation #53

piskvorky opened this issue Sep 18, 2011 · 1 comment
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difficulty medium Medium issue: required good gensim understanding & python skills documentation Current issue related to documentation wishlist Feature request

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@piskvorky
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Extend the theoretical part of LsiModel documentation:

  • how do multipass/singlepass SVD relate and how can users turn them on/off
  • describe speed/accuracy trade-offs of multipass vs. singlepass
  • where do users find topic "details" (U, S matrices for LSI, lambda and gamma for LDA...)
  • but don't confuse newbie users! find a proper place for this "advanced" info

http://groups.google.com/group/gensim/browse_thread/thread/4b605b72f8062770#
@piskvorky
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Re. online updates, http://groups.google.com/group/gensim/browse_thread/thread/3136fefaf859ddae :

More concretely: a practical amount of documents to add to the model at a time is at least "requested dimensionality (=num_topics)" + "internal oversampling (=100)".

@tmylk tmylk added wishlist Feature request difficulty medium Medium issue: required good gensim understanding & python skills labels Jan 23, 2016
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