Papers by Masaya Ohagi
Persona-Consistent Dialogue Generation via Pseudo Preference Tuning (2025.coling-main)
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| Challenge: | Existing methods for improving persona consistency in dialogues require external resources. |
| Approach: | They propose a method for enhancing persona consistency in dialogue response generation using direct preference optimization using persona data. |
| Outcome: | The proposed method produces more consistent and natural responses than previous methods. |
Dialogue Systems Can Generate Appropriate Responses without the Use of Question Marks?– a Study of the Effects of “?” for Spoken Dialogue Systems – (2024.lrec-main)
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Tomoya Mizumoto, Takato Yamazaki, Katsumasa Yoshikawa, Masaya Ohagi, Toshiki Kawamoto, Toshinori Sato
| Challenge: | Existing systems for spoken dialogues do not append question marks to recognized queries . lack of punctuation marks in spoken dialogue can negatively impact comprehension . |
| Approach: | They investigate the impact of question marks on spoken dialogue systems . they analyze examples to determine which types of utterances have the impact . |
| Outcome: | The proposed method shows that question marks have a significant impact on spoken dialogue systems. |