3 papers
cs.LG2025
From Optimization to Prediction: Transformer-Based Path-Flow Estimation to the Traffic Assignment Problem
Mostafa Ameli, Sulthana Shams, Van Anh Le +1
The traffic assignment problem is essential for traffic flow analysis, traditionally solved using mathematical programs under the Equilibrium principle. These methods become comput…
cs.IR2023
Attack Detection Using Item Vector Shift in Matrix Factorisation Recommenders
Sulthana Shams, Douglas Leith
This paper proposes a novel method for detecting shilling attacks in Matrix Factorization (MF)-based Recommender Systems (RS), in which attackers use false user-item feedback to pr…
cs.IR2023
Evaluating Impact of User-Cluster Targeted Attacks in Matrix Factorisation Recommenders
Sulthana Shams, Douglas Leith
In practice, users of a Recommender System (RS) fall into a few clusters based on their preferences. In this work, we conduct a systematic study on user-cluster targeted data poiso…