28 فروردین 1403

سجاد احمدیان

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه
تحصیلات: دکترای تخصصی / مهندسی کامپیوتر
تلفن: 09188339565
دانشکده: دانشکده فناوری اطلاعات

مشخصات پژوهش

عنوان
An improved model of trust-aware recommender systems using reliability measurements
نوع پژوهش مقاله ارائه شده
کلیدواژه‌ها
recommender systems; social network; trust; reliability measurement
پژوهشگران سجاد احمدیان (نفر اول)، پرهام مرادی (نفر دوم)، فردین اخلاقیان (نفر سوم)

چکیده

Trust-aware recommender systems are programs that make use of trust information and user personal data in social networks to provide personalized recommendations. In this paper we propose a model to improve the accuracy of trust-aware recommender systems using reliability measurements. We use these measurements to assess the reliability of a prediction and reconstruction the neighborhood of users. In reconstruction phase, we remove the users that reliability of them is less than a threshold value from trust networks of users. An empirical evaluation on Epinions dataset shows that the proposed model is the most effective in term of accuracy while preserving a good coverage.