Yuki Shiotsuka


2025

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Identification and Analysis of Identity-Centric Elements of Character-Likeness in Game Scenario
Shinji Iwata | Koya Ihara | Shiki Sato | Jun Baba | Asahi Hentona | Masahiro Yamazaki | Yuki Shiotsuka | Takahiro Ishizue | Akifumi Yoshimoto
Proceedings of the 26th Annual Meeting of the Special Interest Group on Discourse and Dialogue

Generating and evaluating character-like utterances automatically is essential for applications ranging from character simulation to creative-writing support. Existing approaches primarily focus on basic aspects of character‐likeness, such as script-fidelity knowledge and conversational ability. However, achieving a higher level of character‐likeness in utterance generation and evaluation requires consideration of the character’s identity, which deeply reflects the character’s inner self. To bridge this gap, we identified a set of identity-centric character-likeness elements. First, we listed 27 elements covering various aspects of identity, drawing on psychology and identity theory. Then, to clarify the features of each element, we collected utterances annotated with these elements from a commercial smartphone game and analyzed them based on user evaluations regarding character-likeness and charm. Our analysis reveals part of element-wise effects on character‐likeness and charm. These findings enable developers to design practical and interpretable element-feature-aware generation methods and evaluation metrics for character-like utterances.