Zhongyu Ouyang
Ph.D. Student in Computer Science 💻
Cognitive Modeling in AI; Recommender Systems; Graph Learning
Dartmouth College 🌲
zhongyu.ouyang.gr [AT] dartmouth.edu
Biography
Hi 💚! My name is 欧阳忠宇 Zhongyu Ouyang, born and raised in Jiangxi, China 🇨🇳. I am a Ph.D. student in Computer Science at Dartmouth College, advised by Prof. Soroush Vosoughi. My research interests broadly lie in cognitive modeling in artificial intelligence (e.g., agentic memory, preference modeling), recommender systems (e.g., graph-based collaborative filtering, click-through-rate prediction) and graph representation learning over various domains (e.g., healthcare, mobile application promotion).
In summer 2024 and 2025, I was fortunate to intern at Microsoft AI as a data scientist intern in Redmond WA. In fall 2025, I was fortunate to intern at Amazon AWS as an applied scientist intern in New York City.
Papers
Non-parametric Graph Convolution for Re-ranking in Recommendation Systems
Zhongyu Ouyang*, Mingxuan Ju*, Soroush Vosoughi, Yanfang Ye
RecSys'25: The 19th ACM Conference on Recommender Systems
Scaled Supervision is an Implicit Lipschitz Regularizer
Zhongyu Ouyang, Chunhui Zhang, Yaning Jia, Soroush Vosoughi
ICWSM'25: The 20th International AAAI Conference on Web and Social Media
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
On the Influence of Connectivity to CTR Prediction
Zhongyu Ouyang, Chunhui Zhang, Yaning Jia, Soroush Vosoughi
Under Review
What Makes LLMs Effective Sequential Recommenders? A Study on Preference Intensity and Temporal Context
Zhongyu Ouyang*, Qianlong Wen*, Chunhui Zhang, Soroush Vosoughi, Yanfang Ye
Under Review, *Equal Contribution
Pretrained Image-Text Models are Secretly Video Captioners
Chunhui Zhang, Yiren Jian, Zhongyu Ouyang, Soroush Vosoughi
Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2025) Main Conference
Working Memory Identifies Reasoning Limits in Language Models
Chunhui Zhang, Yiren Jian, Zhongyu Ouyang, Soroush Vosoughi
The Conference on Empirical Methods in Natural Language Processing (EMNLP 2024).
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
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
On the Influence of Connectivity to CTR Prediction
Zhongyu Ouyang, Chunhui Zhang, Yaning Jia, Soroush Vosoughi
Under Review
What Makes LLMs Effective Sequential Recommenders? A Study on Preference Intensity and Temporal Context
Zhongyu Ouyang*, Qianlong Wen*, Chunhui Zhang, Soroush Vosoughi, Yanfang Ye
Under Review, *Equal Contribution
Non-parametric Graph Convolution for Re-ranking in Recommendation Systems
Zhongyu Ouyang*, Mingxuan Ju*, Soroush Vosoughi, Yanfang Ye
RecSys'25: The 19th ACM Conference on Recommender Systems
Scaled Supervision is an Implicit Lipschitz Regularizer
Zhongyu Ouyang, Chunhui Zhang, Yaning Jia, Soroush Vosoughi
ICWSM'25: The 20th International AAAI Conference on Web and Social Media
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
On the Influence of Connectivity to CTR Prediction
Zhongyu Ouyang, Chunhui Zhang, Yaning Jia, Soroush Vosoughi
Under Review
What Makes LLMs Effective Sequential Recommenders? A Study on Preference Intensity and Temporal Context
Zhongyu Ouyang*, Qianlong Wen*, Chunhui Zhang, Soroush Vosoughi, Yanfang Ye
Under Review, *Equal Contribution
Pretrained Image-Text Models are Secretly Video Captioners
Chunhui Zhang, Yiren Jian, Zhongyu Ouyang, Soroush Vosoughi
Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2025) Main Conference
Working Memory Identifies Reasoning Limits in Language Models
Chunhui Zhang, Yiren Jian, Zhongyu Ouyang, Soroush Vosoughi
The Conference on Empirical Methods in Natural Language Processing (EMNLP 2024).
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
The 40th Conference on Uncertainty in Artificial Intelligence
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
-
Amazon Sep 2025 - Dec 2025Applied Scientist Intern
AWS Agentic AI -
Microsoft June 2025 - Sep 2025Data Scientist Intern
Microsoft AI -
Dartmouth College Fall 2024 - PresentPh.D. Student in Computer Science
Cognitive Modeling in AI; Recommender Systems -
Microsoft May 2024 - Aug 2024Data Scientist Intern
Microsoft AI -
University of Notre Dame Spring 2022 - Spring 2024Research Assistant in Computer Science
Recommender Systems -
Case Western Reserve University Fall 2021Research Assistant in Computer Science
Opioid overdose prediction over PDMP data -
Qeexo June 2020 - Sep 2020Machine Learning Engineer
Backend support for Qeexo AutoML -
Georgia Institute of Technology Jan 2020 - Aug 2022Master's Degree
Computer Science, minor in Machine Learning -
AsiaInfo June 2019 - Aug 2019Data Scientist Intern
Anomaly detection over health insurance claims -
University of Pittsburgh Aug 2018 - Apr 2020Master's Degree
Masters in Industrial Engineering -
Tianjin University 2014 - 2018Bachelor's Degree
Materials Forming & Control Engineering
Miscellaneous
I have a tuxedo cat named Yaya (牙牙, 'tooth' in Mandarin). He was born in Chirstmas 🎄 2021, and was adopted by me in March 2023 in South Bend IN.
I originally named him Toothless after the dragon Toothless in How to Train Your Dragon, one of my favorite animations.
My favorite director is Tim Burton and I costumed myself Wednesday Adams last Halloween. 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. Shout out to New Jeans, Aespa, Twins, and other wonderful girl groups 📣!