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Where can I find a 1TB or larger 1-gram corpus?

I am comparing certain structures for term-frequency calculation, but without a significantly large dataset I won't be able to show the non-theoretical speed gains.

  • how many words is 1TB? – user483 Mar 3 '12 at 17:45
  • 1TB seems like a lot. Does it have to be entirely in one language? – prash Mar 4 '12 at 11:57
  • @jlovegren 1TB = 10^12 bytes = normally 5*10^11 or 10^12 characters depending on encoding – Louis Rhys Mar 4 '12 at 12:12
  • prash: Well all I am measuring is term-frequency, so I suppose language would be irrelevant. – A T Mar 4 '12 at 12:41
  • Wikipedia will give you around 15GB, and Gutenberg around 5-10GB – prash Mar 4 '12 at 12:53
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Mark Davies' version of the Google Books corpus (has more functionality than the Ngram viewer) has 155 billion words, which is getting close to 1TB.

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Are the corpora available from Google Books Ngram Viewer not the kind of thing you are looking for?

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  • I was looking at that earlier, it's 1-gram are only in the 10s of GB range. I mean, I could work with larger 2-gram and 3-gram... and could also split them up into 1-gram... – A T Mar 3 '12 at 17:41
  • I was looking for their 1TB corpus which I knew about vaguely I while ago and don't know if this is what they call it now or if that's another thing \-: – hippietrail Mar 3 '12 at 17:51

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