Zhengyu Chen

Transferring Causal Mechanism over Meta-representations for Target-Unknown Cross-domain Recommendation

2024 · ACM Transactions on Information Systems

Tackling the pervasive issue of data sparsity in recommender systems, we present an insightful investigation into the burgeoning area of non-overlapping cross-domain recommendation, a technique that facilitates the transfer of interaction knowledge across domains without …

Pareto Graph Self-Supervised Learning

2024

In this paper, we study the problem of finding proper tradeoff for graph self-supervised learning. Recently, various self-supervised auxiliary tasks have been proposed to accelerate representation learning in Graph Neural Networks (GNNs). However, existing graph …

From Mathematical Reasoning to Code: Generalization of Process Reward Models in Test-Time Scaling

2025 · arXiv (Cornell University)

Recent advancements in improving the reasoning capabilities of Large Language Models have underscored the efficacy of Process Reward Models (PRMs) in addressing intermediate errors through structured feedback mechanisms. This study analyzes PRMs from multiple perspectives, …