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Are there any equivalents of Google Ngram for Japanese?

Google Ngram doesn't currently cover Japanese, and the only other thing I could find was http://www.ldc.upenn.edu/Catalog/catalogEntry.jsp?catalogId=LDC2009T08 , which seems to be a paid-for service.

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closed as off-topic by Dono, Flaw Feb 4 at 23:44

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I don't have an answer, but what are you going to do with it? By the way, if you want to parse Japanese sentences, then ChaSen: chasen-legacy.sourceforge.jp is famous. – user458 Feb 4 '12 at 6:00
@sawa: I was wanting to find out if the word ソープランド existed before 1984. My reasoning was that if the word was the result of a "nationwide contest", then it wouldn't have existed beforehand, whereas if that was an urban legend, I'd see uses pre-1984. In the end, I used the English Ngram for the word soaplands. Conclusion: nationwide contest theory plausible. – Andrew Grimm Feb 4 '12 at 6:23
Andrew: For that purpose, you can just do an ordinary search, you don't need N-gram. And that story is not an urban legend. It is a famous established story. – user458 Feb 4 '12 at 6:27
Yeah, unfortunately I don't know of an Ngram equivalent, but for this particular question there are many sources repeating the 1984 date, and a "Google Books" search finds nothing earlier: google.com/… – Matt Feb 4 '12 at 8:26
As a programmer and NLP specialist, I could easily write a similar program to google ngram. However, I would need an enormous corpus, the size of Google Books to work with. OCRing kanji is often very difficult, and I'm not sure there's much in the way of a Japanese Google Books equivalent to use. tl;dr: give me enough data and its totally do-able. – MatthewRNYC Feb 9 '12 at 16:40
up vote 10 down vote accepted

Google Japan sells the Japanese version of "Google Ngram". Here is the site: http://www.gsk.or.jp/catalog/GSK2007-C

But the site is only in Japanese. There might be the same site in English, though. I hope it helps.

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Some additional information is on Google Japan Blog, but this page is also in Japanese. – Tsuyoshi Ito Feb 17 '12 at 1:11
The page is available in English: gsk.or.jp/en/catalog/GSK2007-C – user763305 Apr 12 '15 at 5:51

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