On 03/07/2013 09:40 AM, Roman Sinayev wrote:
> I tried but TfIDF is slow after the vectorization.  The other thing
> was since it is stateless, wouldn't transformation of a test corpus
> followed by tfidf result in a totally different matrix?  You won't
> know which words are responsible for what.
>
Yes, it does give different results. But it is way more scalable.
I think there have been several attempts at speeding up the 
DictVectorizer using
multi-processing, iirc without much success.
That doesn't mean you should try, though ;)

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