Resources for Japanese
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There is a very good list at JAIST: Catalogue of Language Resources and Tools in Japan
Corpora
Proprietary
- Japanese plain text and Co-occurrences at LCC (downloadable and web-searchable, but only for non-commercial use)
- Balanced Corpus of Contemporary Written Japanese (BCCWJ) (subset is web searchable at Kotonoha)
- HamleDT, harmonized dependency treebanks of many languages, common annotation style.
Free/Open Licence
Multilingual
- Tanaka Corpus by Tanaka Yasuhito, edited by Jim Breen, under a CC-BY-SA 3.0 licence
- Tatoeba Updated version of the Tanaka Corpus; ≈150,000 sentence pairs (CC-BY)
- Japanese-English Bilingual Corpus of Wikipedia's Kyoto Articles ≈500,000 pairs of manually-translated sentences (CC-BY 3.0)
- National Diet Library Subject Headers Japanese Subject Headers, with paraphrases including English Translations (non-commercial attribution)
- English-Japanese Translation Alignment Data aligned by Masao Utiyama (GFDL, CC-by-nc 1.0)
- WordNet Definitions and Glosses ≈180,000 sentence/phrase pairs from the Japanese Wordnet (WordNet license, similar to BSD)
- Japanese Translation of SemCor ≈14,000 sentences from the Japanese Wordnet, easily aligned to the English source (WordNet license, similar to BSD)
- The Kyoto Free Translation Task (KFTT) by Graham Neubig, 1,235 sentences of Japanese-English manually word-aligned
- JEC Basic Sentence Data by Kyoto University: 5,304 basic Japanese sentences based on Kyoto University Case Frame Data, translated in Chinese and English
Monolingual
- Kyoto University and NTT Blog Corpus
- Compilation of potential Japanese compound verbs by Jim Breen. 64,776 verb collection with n-gram counts and dictionary references (CC-SA licence)
Grammars
Free/Open Licence
- Jacy HPSG grammar MIT Licence
Unknown licence
- KPML generation grammar (downloadable)
Dictionaries
Free/Open Licence
- JMdict/EDICT Japanese-English and Japanese-Multilanguage dictionary in text and XML formats, by EDRDG (Electronic Dictionary R&D Group) - 170,000 entries, (CC-BY-SA 3.0 licence)
- ENAMDICT/JMnedict proper name dictionary in text and XML formats - 740,000 entries, by EDRDG (Electronic Dictionary R&D Group), (CC-BY-SA 3.0 licence)
- Japanese version of WordNet by NICT, (WordNet license, like BSD)
- Kanjidic/Kanjidic2 Kanji dictionaries in text and XML formats covering about 13,000 characters, by EDRDG (Electronic Dictionary R&D Group), (CC-BY-SA 3.0 licence)