Takayuki Nagai


Collection and Analysis of Travel Agency Task Dialogues with Age-Diverse Speakers
Michimasa Inaba | Yuya Chiba | Ryuichiro Higashinaka | Kazunori Komatani | Yusuke Miyao | Takayuki Nagai
Proceedings of the Thirteenth Language Resources and Evaluation Conference

When individuals communicate with each other, they use different vocabulary, speaking speed, facial expressions, and body language depending on the people they talk to. This paper focuses on the speaker’s age as a factor that affects the change in communication. We collected a multimodal dialogue corpus with a wide range of speaker ages. As a dialogue task, we focus on travel, which interests people of all ages, and we set up a task based on a tourism consultation between an operator and a customer at a travel agency. This paper provides details of the dialogue task, the collection procedure and annotations, and the analysis on the characteristics of the dialogues and facial expressions focusing on the age of the speakers. Results of the analysis suggest that the adult speakers have more independent opinions, the older speakers more frequently express their opinions frequently compared with other age groups, and the operators expressed a smile more frequently to the minor speakers.


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Human-like Natural Language Generation Using Monte Carlo Tree Search
Kaori Kumagai | Ichiro Kobayashi | Daichi Mochihashi | Hideki Asoh | Tomoaki Nakamura | Takayuki Nagai
Proceedings of the INLG 2016 Workshop on Computational Creativity in Natural Language Generation


Learning Word Meanings and Grammar for Describing Everyday Activities in Smart Environments
Muhammad Attamimi | Yuji Ando | Tomoaki Nakamura | Takayuki Nagai | Daichi Mochihashi | Ichiro Kobayashi | Hideki Asoh
Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing