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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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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
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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

2 Answers 2

up vote 7 down vote accepted

Google Japan sells the Japanese version of "Google Ngram". Here is the site. http://www.gsk.or.jp/catalog/GSK2007-C/catalog.html But it says only in Japanese. There might be the same one 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

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.

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