Yixin Liu

2026

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OFA-MAS: One-for-All Multi-Agent System Topology Design based on Mixture-of-Experts Graph Generative Models.
Shiyuan Li|Yixin Liu|Yu Zheng|Mei Li|Quoc Viet Hung Nguyen|Shirui Pan
Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

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FreeGAD: A Training-Free yet Effective Approach for Graph Anomaly Detection.
Yunfeng Zhao|Yixin Liu|Shiyuan Li|Qingfeng Chen|Yu Zheng|Shirui Pan
Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

2024

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Self-Supervision Improves Diffusion Models for Tabular Data Imputation.
Yixin Liu|Thalaiyasingam Ajanthan|Hisham Husain|Vu Nguyen
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024
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Noise-Resilient Unsupervised Graph Representation Learning via Multi-Hop Feature Quality Estimation.
Shiyuan Li|Yixin Liu|Qingfeng Chen|Geoffrey I. Webb|Shirui Pan
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024

2023

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GOOD-D: On Unsupervised Graph Out-Of-Distribution Detection.
Yixin Liu|Kaize Ding|Huan Liu|Shirui Pan
Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023.

2022

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Cyclic label propagation for graph semi-supervised learning.
Zhao Li|Yixin Liu|Zhen Zhang|Shirui Pan|Jianliang Gao|Jiajun Bu
World Wide Web (WWW) 2022 Volume 25 Issue 2
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Towards Unsupervised Deep Graph Structure Learning.
Yixin Liu|Yu Zheng|Daokun Zhang|Hongxu Chen|Hao Peng|Shirui Pan
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

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ANEMONE: Graph Anomaly Detection with Multi-Scale Contrastive Learning.
Ming Jin|Yixin Liu|Yu Zheng|Lianhua Chi|Yuan-Fang Li|Shirui Pan
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021