JSAI Technical Report, SIG-SLUD
Online ISSN : 2436-4576
Print ISSN : 0918-5682
103rd (Mar.2025)
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An Expressive Spoken Dialogue System to Assist Travel Destination Decisions Using Retrieval-Augmented Generation to Show Evidence Satisfying User Preferences
Chihiro ASADAMika ONUKIYuto GOTOMasaki NOSE
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Pages 68-73

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Abstract

This paper presents our spoken dialogue system developed for the 7th Dialogue System Live Competition. To achieve the competition tasks about travel planing while providing with a better user experience, we designed the system to exhibits evidence that matches user preferences using retrieval-augmented generation in addition to various gestures and facial expressions. The system largely consists of the following three blocks. The first block determines the next dialogue state and tasks based on the evaluation results in order to enable the system to return flexible responses to various topics. The second incorporates possible responses into prompts and then generates convincing proposals with supporting images and maps. The last generates expressive turn-taking and behavior of the virtual agent such as facial expressions, gestures and backchannels. As a result, we placed second in the preliminary round with high rate of evaluation.

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© 2025 The Japaense Society for Artificial Intelligence
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