--- title: "Daichi Mochihashi — author profile and papers in our library" description: "Daichi Mochihashi, The Institute of Statistical Mathematics: 2 papers on Elamur Research (2009–2026), h-index 13 — affiliations, topics…" canonical: "https://research.elamur.ai/free/en/authors/daichi-mochihashi/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/daichi-mochihashi/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Daichi Mochihashi # Daichi Mochihashi Daichi Mochihashi has 2 papers in our library, in 2009–2026, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Multilingual & cross-lingual NLP](https://md.research.elamur.ai/free/en/topics/multilingual-nlp/), [Tokenization & segmentation](https://md.research.elamur.ai/free/en/topics/tokenization/); often with [Hiroya Takamura](https://md.research.elamur.ai/free/en/authors/hiroya-takamura/), [Naoki Otani](https://md.research.elamur.ai/free/en/authors/naoki-otani/), [Ryo Nagata](https://md.research.elamur.ai/free/en/authors/ryo-nagata/). 2 papers in our library · 2009–2026 [OpenAlex](https://openalex.org/A5078855310) · [ORCID](https://orcid.org/0000-0003-0344-5382) · [**h-index 13**](https://openalex.org/authors/A5078855310) · [120 works](https://openalex.org/works?filter=author.id:A5078855310) · [769 citations](https://openalex.org/works?filter=author.id:A5078855310&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/daichi-mochihashi/#papers) · [🔗 Cited 74 times in our library](https://md.research.elamur.ai/free/en/authors/daichi-mochihashi/cited-by/) · [2 more in our library without a page yet](#also) · [⭐ Paper Stars ranking: #4877](https://md.research.elamur.ai/free/en/paper-stars/page/49/#star-4877) The profile is the library's match of the name; two people with one name are not always told apart. Elsewhere: [Google Scholar](https://scholar.google.com/citations?view_op=search_authors&mauthors=Daichi+Mochihashi) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Daichi+Mochihashi) · [dblp](https://dblp.org/search?q=Daichi+Mochihashi) · [ACL Anthology](https://aclanthology.org/search/?q=Daichi+Mochihashi) ## Affiliations [🔬**The Institute of Statistical Mathematics** Tokyo · Japan 2011–2026 · 60 papersEmployment since 2011 · Professor*current*](https://ror.org/03jcejr58) · [🏢**NTT** Tokyo · Japan 2007–2013 · 6 papers](https://md.research.elamur.ai/free/en/companies/ntt/) · [🎓**The Graduate University for Advanced Studies, SOKENDAI** Hayama · Japan 2016–2024 · 4 papers](https://md.research.elamur.ai/free/en/universities/the-graduate-university-for-advanced-studies-sokendai/) · [🔬**Advanced Telecommunications Research Institute International** Kyoto · Japan 2005–2006 · 4 papers](https://md.research.elamur.ai/free/en/labs/advanced-telecommunications-research-institute-international/) · [🎓**Ritsumeikan University** Kyoto · Japan 2018 · 2 papers](https://ror.org/0197nmd03) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 7 more institutions on single bylines are not listed. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 4 The field of science this work belongs to (OpenAlex fields).[Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Arts and Humanities · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Computer Science · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) 🧭 Topics 4 Research subjects and languages the work is about.[Language models & pretraining · 1 work](https://md.research.elamur.ai/free/en/topics/language-models/) · [Tokenization & segmentation · 1 work](https://md.research.elamur.ai/free/en/topics/tokenization/) · [Historical linguistics & language change · 1 work](https://md.research.elamur.ai/free/en/topics/language-change/) · [Multilingual & cross-lingual NLP · 1 work](https://md.research.elamur.ai/free/en/topics/multilingual-nlp/) 💡 Concepts 1 Key ideas and methods explained on our concept pages.[Tokenization · 1 work](https://md.research.elamur.ai/free/en/concepts/tokenization/) ## Works by year ### 2020s [**2026** 1 paper](https://md.research.elamur.ai/free/en/authors/daichi-mochihashi/year/2026/) ### 2000s [**2009** 1 paper](https://md.research.elamur.ai/free/en/authors/daichi-mochihashi/year/2009/) ## Papers The most cited first (OpenAlex and our library). 1. **[Bayesian Unsupervised Word Segmentation with Nested Pitman-Yor Language Modeling](https://md.research.elamur.ai/free/en/papers/mochihashi-2009-bayesian-unsupervised-word-segmentation-nested/)** *(2009 · 312 citations)* The paper addresses fully unsupervised word segmentation for text without explicit word boundaries, such as Chinese, Japanese, phonetic transcripts, or unknown languages. 2. **[Cross-lingual and Word-Independent Methods for Quantifying Degree of Grammaticalization](https://md.research.elamur.ai/free/en/papers/nagata-2026-cross-lingual-word-independent-methods/)** *(2026)* The paper addresses the automatic measurement of how far a word has moved from content-word status toward function-word status, a process called grammaticalization. ## All works 4 works of theirs in our library, the most cited first; 2 with a page here, the others link their original until we summarise them. 1. **[Bayesian Unsupervised Word Segmentation with Nested Pitman-Yor Language Modeling](https://md.research.elamur.ai/free/en/papers/mochihashi-2009-bayesian-unsupervised-word-segmentation-nested/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Daichi Mochihashi, Takeshi Yamada, Naonori Ueda*2009 · 312 citations* 2. **[Semi-Supervised Learning of a Pronunciation Dictionary from Disjoint Phonemic Transcripts and Text ↗](https://doi.org/10.21437/interspeech.2017-1081) Interspeech (USB) · no summary yet**Takahiro Shinozaki et al.*2017 · 4 citations* 3. **[MIPA: Mutual Information Based Paraphrase Acquisition via Bilingual Pivoting ↗](https://aclanthology.org/I17-1009/) Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers) · no summary yet**Tomoyuki Kajiwara, Mamoru Komachi, Daichi Mochihashi*2017 · 2 citations* 4. **[Cross-lingual and Word-Independent Methods for Quantifying Degree of Grammaticalization](https://md.research.elamur.ai/free/en/papers/nagata-2026-cross-lingual-word-independent-methods/) [Conference of the European Chapter of the Association for Computational Linguistics (EACL)](https://md.research.elamur.ai/free/en/venues/eacl/)**Ryo Nagata, Daichi Mochihashi, Misato Ido, et al.*2026* ## Co-authors here 4 co-authors with a page, the most papers together first. - [Hiroya Takamura](https://md.research.elamur.ai/free/en/authors/hiroya-takamura/) - [Naoki Otani](https://md.research.elamur.ai/free/en/authors/naoki-otani/) - [Ryo Nagata](https://md.research.elamur.ai/free/en/authors/ryo-nagata/) - [Yoshifumi Kawasaki](https://md.research.elamur.ai/free/en/authors/yoshifumi-kawasaki/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/): [ACL 2009](https://md.research.elamur.ai/free/en/venues/acl/2009/) - [Conference of the European Chapter of the Association for Computational Linguistics (EACL)](https://md.research.elamur.ai/free/en/venues/eacl/): [EACL 2026](https://md.research.elamur.ai/free/en/venues/eacl/2026/) - Interspeech (USB) - Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers) ## Cited by Papers of our library cite their works 74 times (of the 149,439 papers whose bibliographies we read); [2 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/daichi-mochihashi/cited-by/). Updated 1 November 2026