activity
20202025
most citedSamWalker++: recommendation with informative sampling strategy

2 citations · 2 across the 7 of their papers we have counts for

collaborators

7 papers

cs.IR2025

Advancing Loss Functions in Recommender Systems: A Comparative Study with a Rényi Divergence-Based Solution

Shengjia Zhang, Jiawei Chen, Changdong Li +5

Loss functions play a pivotal role in optimizing recommendation models. Among various loss functions, Softmax Loss (SL) and Cosine Contrastive Loss (CCL) are particularly effective…

cs.IR2024

Distributionally Robust Graph-based Recommendation System

Bohao Wang, Jiawei Chen, Changdong Li +6

With the capacity to capture high-order collaborative signals, Graph Neural Networks (GNNs) have emerged as powerful methods in Recommender Systems (RS). However, their efficacy of…

cs.IR2023

CDR: Conservative Doubly Robust Learning for Debiased Recommendation

ZiJie Song, JiaWei Chen, Sheng Zhou +4

In recommendation systems (RS), user behavior data is observational rather than experimental, resulting in widespread bias in the data. Consequently, tackling bias has emerged as a…

cs.AI2023

Jointly Complementary&Competitive Influence Maximization with Concurrent Ally-Boosting and Rival-Preventing

Qihao Shi, Wenjie Tian, Wujian Yang +3

In this paper, we propose a new influence spread model, namely, Complementary\&Competitive Independent Cascade (CIC) model. CIC model generalizes three well known influence…

cs.AI2023

Robust Sequence Networked Submodular Maximization

Qihao Shi, Bingyang Fu, Can Wang +4

In this paper, we study the \underline{R}obust \underline{o}ptimization for \underline{se}quence \underline{Net}worked \underline{s}ubmodular maximization (RoseNets) problem. We in…

cs.IR2020★ 2 cited

SamWalker++: recommendation with informative sampling strategy

Can Wang, Jiawei Chen, Sheng Zhou +3

Recommendation from implicit feedback is a highly challenging task due to the lack of reliable negative feedback data. Existing methods address this challenge by treating all the u…

cs.IR2020

Fast Adaptively Weighted Matrix Factorization for Recommendation with Implicit Feedback

Jiawei Chen, Can Wang, Sheng Zhou +4

Recommendation from implicit feedback is a highly challenging task due to the lack of the reliable observed negative data. A popular and effective approach for implicit recommendat…