Impression Change Prediction Method Based on Speakers' Personalities in Speed Dating Dialogue Simulations

This paper focuses on simulating text dialogues in which impressions between speakers improve during speed dating. This simulation involves selecting an utterance from multiple candidates generated by a text generation model that replicates a specific speaker's utterances, aiming to improve the impression from their dialogue partner. Accurately selecting an utterance that improves the impression is crucial for the simulation. We believe that whether an utterance improves the speaker's impression from their partner may depend on the personalities of both parties. However, recent methods for utterance selection do not consider the impression per utterance or the personalities. To address this issue, we propose a method that predicts whether an utterance improves the speaker's impression from their partner, considering the personalities. The evaluation results showed that personalities are useful in predicting impression changes per utterance. Furthermore, we conducted a human evaluation of simulated dialogues using our method. The results showed that it could simulate dialogues more favorably received than those selected without considering personalities.