Search Results for author: Dongxia Wang

Found 5 papers, 3 papers with code

Does Knowledge Graph Really Matter for Recommender Systems?

1 code implementation4 Apr 2024 Haonan Zhang, Dongxia Wang, Zhu Sun, Yanhui Li, Youcheng Sun, HuiZhi Liang, Wenhai Wang

We consider the scenarios where knowledge in a KG gets completely removed, randomly distorted and decreased, and also where recommendations are for cold-start users.

Knowledge Graphs Recommendation Systems

FoolSDEdit: Deceptively Steering Your Edits Towards Targeted Attribute-aware Distribution

no code implementations6 Feb 2024 Qi Zhou, Dongxia Wang, Tianlin Li, Zhihong Xu, Yang Liu, Kui Ren, Wenhai Wang, Qing Guo

To expose this potential vulnerability, we aim to build an adversarial attack forcing SDEdit to generate a specific data distribution aligned with a specified attribute (e. g., female), without changing the input's attribute characteristics.

Adversarial Attack Attribute +1

FairRec: Fairness Testing for Deep Recommender Systems

1 code implementation14 Apr 2023 Huizhong Guo, Jinfeng Li, Jingyi Wang, Xiangyu Liu, Dongxia Wang, Zehong Hu, Rong Zhang, Hui Xue

Given the testing report, by adopting a simple re-ranking mitigation strategy on these identified disadvantaged groups, we show that the fairness of DRSs can be significantly improved.

Fairness Recommendation Systems +1

Stability of Weighted Majority Voting under Estimated Weights

no code implementations13 Jul 2022 Shaojie Bai, Dongxia Wang, Tim Muller, Peng Cheng, Jiming Chen

To formally analyse the uncertainty to the decision process, we introduce and analyse two important properties of such unbiased trust values: stability of correctness and stability of optimality.

Decision Making

RobOT: Robustness-Oriented Testing for Deep Learning Systems

1 code implementation11 Feb 2021 Jingyi Wang, Jialuo Chen, Youcheng Sun, Xingjun Ma, Dongxia Wang, Jun Sun, Peng Cheng

A key part of RobOT is a quantitative measurement on 1) the value of each test case in improving model robustness (often via retraining), and 2) the convergence quality of the model robustness improvement.

Software Engineering

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