【Agency for Cultural Affairs commissioned project】BCCWJ2 -Balanced Corpus of Contemporary Written Japanese

We are expanding the Balanced Corpus of Contemporary Written Japanese (BCCWJ). By adding data from 2006 to 2025 to the existing 100-million-word corpus, we will create “BCCWJ2,” a 200-million-word-scale corpus.

NEWS

2026.03.24

Samples from books published between 2006 and 2010 (approximately 23 million words in total) are now available on “Chunagon” (user registration required).

2026.03.24

Samples from books published between 2006 and 2010 (approximately 23 million words in total) have been added to “Shonagon.”

2026.08.27-30

NINJAL researchers will be hosting a panel at the 18th EAJS International Conference (2026)

Jun. 2, 2026

NINJAL researchers will be hosting a workshop at the Society for Japanese Linguistics 2026 Spring Meeting

Mar. 10, 2026

NINJAL researchers presented a poster at the 32nd Annual Meeting of the Association for Natural Language Processing (NLP2026)

Oct. 26, 2025

NINJAL researchers presented a poster at the Society for Japanese Linguistics 2025 Autumn Meeting

Sep. 11, 2025

NINJAL researchers introduced BCCWJ2 at the 35th European Association of Japanese Resource Specialists (EAJRS) Conference

May 11, 2025

NINJAL researchers presented a poster at the Society for Japanese Linguistics 2025 Spring Meeting

Mar. 11, 2025

NINJAL researchers presented a poster at the 31st Annual Meeting of the Association for Natural Language Processing (NLP2025) (PDF)

Oct. 27, 2024

NINJAL researchers presented a poster at the Society for Japanese Linguistics 2024 Autumn Meeting

Shonagon (Search results)

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Chunagon (Search screen)

Access Chunagon

* BCCWJ is available online via two interfaces: Shonagon (left) and Chunagon (right). The full dataset is also available for distribution (fee-based).