情報処理学会 第76回全国大会講演要旨

This paper proposes a new knowledge-based spontaneous dialogue system for recipe search on mobile devices. This recipe search application used a spoken dialogue interface to assistant users' operation. It aims to help users, especially novices who do not have abundant knowledge about recipes, to easily select satisfactory recipes from among thousands of potential options. The spoken interface asks the user a series of questions related to various cooking categories including recipe genres and cooking needs in order to narrow down the potential recipes that meet users' wants. A decision algorithm is proposed to find the best questions to be asked to narrow down the candidates as quickly as possible corresponding to the recipe database. Also, the questions responding to the recipes that users are viewing during the search process are preferentially selected. The experiments were carried out to compare the proposed system with a conventional keyword search interface, and a major commercial recipe search interface.