# Daichi Mochihashi 2009: Bayesian Unsupervised Word Segmentation with Nested Pitman-Yor Language Modeling

> Daichi Mochihashi, Takeshi Yamada, Naonori Ueda, 2009. 1 records on Mysteries Department cite it. Proceedings of ACL-IJCNLP 2009, pp. 100-108 (checked on…

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# Bayesian Unsupervised Word Segmentation with Nested Pitman-Yor Language Modeling

Daichi Mochihashi, Takeshi Yamada, Naonori Ueda, 2009.

**Voynich Manuscript** Paper-conference0

## What it's used for here

Proceedings of ACL-IJCNLP 2009, pp. 100-108 (checked on the ACL Anthology page). Nested Pitman-Yor word segmentation: a character-level PY model nested inside a word-level PY model, segmentation sampled by forward filtering-backward sampling. Track B candidate for learning sign boundaries jointly with the key (where T40 stalled).

## Cited by on this site 1 record

[The Voynich Manuscript](https://mysteriesdept.com/mysteries/voynich-manuscript)

The mystery article

MYS

## Cite it

```
Daichi Mochihashi, Takeshi Yamada, & Naonori Ueda (2009). Bayesian Unsupervised Word Segmentation with Nested Pitman-Yor Language Modeling. https://aclanthology.org/P09-1012/
```

[Find it at aclanthology.org](https://aclanthology.org/P09-1012/)

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**SRC** 0DCEXEMBN6M6

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Paper-conference

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28 Oct 2026, for editors

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