June 18, 2024

Sajad Ahmadian

Academic rank: Assistant professor
Address:
Education: Ph.D in Computer Engineering
Phone: 09188339565
Faculty: Faculty of Information Technology

Research

Title
An improved model of trust-aware recommender systems using reliability measurements
Type Presentation
Keywords
recommender systems; social network; trust; reliability measurement
Researchers Sajad Ahmadian، Parham Moradi، Fardin Akhlaghian

Abstract

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.