چكيده لاتين
Nowadays, recommender systems play a crucial role in facilitating user decision-making. However, simply offering relevant product suggestions is not sufficient to persuade users. While previous research has addressed the use of persuasive explanations, there remains a significant gap in personalizing these explanations based on users’ psychological and cultural characteristics.
To address this gap, this study presents a movie recommender system based on personalized persuasive explanations. In this system, users’ personality types (based on the Neris test, specifically the introversion/extraversion dimension), Hofstede’s cultural dimensions (masculinity/femininity and uncertainty avoidance), and Cialdini’s persuasion strategies (consensus, authority, and liking) and users’ favorite movie genres are taken into account.
Two approaches are proposed and developed in this study. The first approach employs a content-based recommendation method based on movie descriptions, directors, and lead actors. The second approach utilizes the BERT language model and Siamese neural networks to prepare a list of recommended films for users. In the next step, personalized persuasive explanations for the selected movies in these three categories are generated using prompt engineering and advanced language models, including ChatGPT and Claude AI, to evaluate how effectively these explanations persuade users to watch the movies. To generate these explanations, a questionnaire aligned with Cialdini’s persuasion strategies, Hofstede’s cultural dimensions, and the Neris personality type test was used, with users scoring certain dimensions in a preliminary questionnaire.
The evaluation, conducted with the participation of 85 users, showed that men were more influenced by Cialdini’s persuasion strategies (47.6%), whereas women showed a greater inclination toward the masculinity/femininity dimension (39.5%) and uncertainty avoidance (30.2%). The age group of 20–30 years (comprising 60% of participants) was mostly persuaded by Cialdini’s strategies (78.6%) and the introversion/extraversion trait (76.9%). In terms of genre preferences, men showed a greater interest in action, horror, and science fiction genres, while women preferred romance and drama.
Additionally, the T-test revealed that persuasive explanations significantly increased users’ average ratings. The average rating for medium-rated movies increased from 3.43 to 4.16, for low-rated movies from 2.97 to 3.58, and for highly rated movies from 3.89 to 4.40.