Zhongyu Ouyang

Ph.D. Student in Computer Science and Engineering 💻

University of Notre Dame 🍀

zouyang2 [AT] nd.edu

Biography

Hi! I am a Ph.D. student in Computer Science and Engineering at University of Notre Dame, advised by Prof. Yanfang Ye. My research interests broadly lie in the application of retrieval-augmented large language models, recommender systems (e.g., graph-based collaborative filtering, click-through-rate prediction), graph representation learning over various domains (e.g., healthcare, mobile application promotion).

Papers

How to Improve Representation Alignment and Uniformity in Graph-based Collaborative Filtering?

Zhongyu Ouyang, Chunhui Zhang, Shifu Hou, Chuxu Zhang, Yanfang Ye

ICWSM'24: The 18th International AAAI Conference on Web and Social Media

Symbolic Prompt Tuning Completes the App Promotion Graph

Zhongyu Ouyang, Shifu Hou, Shang Ma, Chaoran Chen, Chunhui Zhang, Toby Li, Xusheng Xiao, Chuxu Zhang, Yanfang Ye

ECML PKDD'24: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases

From Coarse to Fine: Enable Comprehensive Graph Self-supervised Learning with Multi-granular Semantic Ensemble

Qianlong Wen, Mingxuan Ju, Zhongyu Ouyang, Chuxu Zhang, Yanfang Ye

ICML'24: International Conference on Machine Learning

Disentangled dynamic heterogeneous graph learning for opioid overdose prediction

Qianlong Wen, Zhongyu Ouyang, Jianfei Zhang, Yiyue Qian, Yanfang Ye, Chuxu Zhang

KDD'22: SIGKDD Conference on Knowledge Discovery and Data Mining

Graph Contrastive Learning with cross-view Reconstruction

Qianlong Wen, Zhongyu Ouyang, Chunhui Zhang, Yiyue Qian, Chuxu Zhang

NeurIPS 2022 Workshop: New Frontiers in Graph Learning

When Sparsity Meets Contrastive Models: Less Graph Data Can Bring Better Class-Balanced Representations

Chunhui Zhang, Chao Huang, Yiyue Tian, Qianlong Wen, Zhongyu Ouyang, Youhuan Li, Yanfang Ye, Chuxu Zhang

ICML'23: International Conference on Machine Learning

How to Improve Representation Alignment and Uniformity in Graph-based Collaborative Filtering?

Zhongyu Ouyang, Chunhui Zhang, Shifu Hou, Chuxu Zhang, Yanfang Ye

ICWSM'24: The 18th International AAAI Conference on Web and Social Media

Symbolic Prompt Tuning Completes the App Promotion Graph

Zhongyu Ouyang, Shifu Hou, Shang Ma, Chaoran Chen, Chunhui Zhang, Toby Li, Xusheng Xiao, Chuxu Zhang, Yanfang Ye

ECML PKDD'24: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases

From Coarse to Fine: Enable Comprehensive Graph Self-supervised Learning with Multi-granular Semantic Ensemble

Qianlong Wen, Mingxuan Ju, Zhongyu Ouyang, Chuxu Zhang, Yanfang Ye

ICML'24: International Conference on Machine Learning

Disentangled dynamic heterogeneous graph learning for opioid overdose prediction

Qianlong Wen, Zhongyu Ouyang, Jianfei Zhang, Yiyue Qian, Yanfang Ye, Chuxu Zhang

KDD'22: SIGKDD Conference on Knowledge Discovery and Data Mining

Graph Contrastive Learning with cross-view Reconstruction

Qianlong Wen, Zhongyu Ouyang, Chunhui Zhang, Yiyue Qian, Chuxu Zhang

NeurIPS 2022 Workshop: New Frontiers in Graph Learning

When Sparsity Meets Contrastive Models: Less Graph Data Can Bring Better Class-Balanced Representations

Chunhui Zhang, Chao Huang, Yiyue Tian, Qianlong Wen, Zhongyu Ouyang, Youhuan Li, Yanfang Ye, Chuxu Zhang

ICML'23: International Conference on Machine Learning

YAGG: Ce transparent ceramics with high luminous efficiency for solid-state lighting application

Hui Hua, Shaowei Feng, Zhongyu Ouyang, Hezhu Shao, Haiming Qin, Hui Ding, Qiping Du, Zhijun Zhang, Jun Jiang, Haochuan Jiang

Journal of Advanced Ceramics (2019)

Vitæ

Miscellaneous

Yaya I have a very sweet tuxedo cat named Yaya. He was born in Chirstmas 2021, and was adopted by me in March 2023. I originally named him Toothless after Toothless in How to Train Your Dragon, which is one of my favorite animations. Since we usually talk to him in Mandarin, we decided to name him Yaya ('tooth' in Mandarin) instead.

My favorite artist is Taylor Swift, and I have been to her concerts in Shanghai (1989), Pittsburgh (Reputation), and Chicago (The Eras). I am also a fan of KPop, and would keep an eye on the latest KPop combacks of multiple girl groups. Feel free to reach out to me if you share similar interests with me!

Website Design

This website theme is designed by Prof. Martin Saveski (big gratitude!). The code needed to build the website is in this GitHub repo.