Si Zhang

Researcher, Meta

Joined

July 2019

Names

Si Zhang

Emails

****@illinois.edu (Confirmed)

****@fb.com (Confirmed)

****@meta.com (Confirmed)

Personal Links

Homepage

Google Scholar

DBLP

Career & Education History

Researcher

Meta (fb.com)

2021 – Present

PhD student

University of Illinois, Urbana Champaign (illinois.edu)

2019 – 2021

PhD student

Arizona State University (asu.edu)

2016 – 2019

Advisors, Relations & Conflicts

Coauthor

Bin Peng

Present

Coauthor

Kaiyu Guan

Present

PhD Advisor

Hanghang Tong

2016 – Present

Expertise

graph neural network

2017 – Present

graph embedding

2016 – Present

graph alignment/graph matching

2016 – Present

Publications

HypRQ-VAE: Long-Tail-Aware Item Indexing for Generative Recommender Systems
Longfeng Wu, Tong Zeng, Giovanni Seni, Zhimin Peng, Bhanu Pratap Singh Rawat, Si Zhang, Yao Zhou, Bowen Xu, Lecheng Zheng, Bo Ji, Yujun Yan, Dawei Zhou
- ICLR 2026 Conference Withdrawn Submission
- Readers: Everyone
Haystack Engineering: Context Engineering for Heterogeneous and Agentic Long-Context Evaluation
Mufei Li, Dongqi Fu, Limei Wang, Si Zhang, Hanqing Zeng, Kaan Sancak, Ruizhong Qiu, Haoyu Peter Wang, Xiaoxin He, Xavier Bresson, Yinglong Xia, Chonglin Sun, Pan Li
- Submitted to ICLR 2026
- Readers: Everyone
Staleness-based Subgraph Sampling for Training GNNs on Large-Scale Graphs
Limei Wang, Si Zhang, Hanqing Zeng, Hao Wu, Zhigang Hua, Kaveh Hassani, Andrey Malevich, Bo Long, Shuiwang Ji
- NPGML Poster
- Readers: Everyone
Haystack Engineering: Context Engineering Meets the Long-Context Challenge in Large Language Models
Mufei Li, Dongqi Fu, Limei Wang, Si Zhang, Hanqing Zeng, Kaan Sancak, Ruizhong Qiu, Haoyu Peter Wang, Xiaoxin He, Xavier Bresson, Yinglong Xia, Chonglin Sun, Pan Li
- NeurIPS 2025 LLM Evaluation Workshop Poster
- Readers: Everyone
HeroFilter: Adaptive Spectral Graph Filter for Varying Heterophilic Relations
Shuaicheng Zhang, Haohui Wang, Junhong Lin, Xiaojie Guo, Yada Zhu, Si Zhang, Dongqi Fu, Dawei Zhou
- NeurIPS 2025 poster
- Readers: Everyone
Learning Graph Quantized Tokenizers
Limei Wang, Kaveh Hassani, Si Zhang, Dongqi Fu, Baichuan Yuan, Weilin Cong, Zhigang Hua, Hao Wu, Ning Yao, Bo Long
- ICLR 2025 Poster
- Readers: Everyone
Language Models are Graph Learners
Zhe Xu, Kaveh Hassani, Si Zhang, Hanqing Zeng, Michihiro Yasunaga, Limei Wang, Dongqi Fu, Ning Yao, Bo Long, Hanghang Tong
- Submitted to ICLR 2025
- Readers: Everyone
Hierarchical Multi-Marginal Optimal Transport for Network Alignment
Zhichen Zeng, Boxin Du, Si Zhang, Yinglong Xia, Zhining Liu, Hanghang Tong
- Proceedings of the AAAI Conference on Artificial Intelligence
- Readers: Everyone
VCR-Graphormer: A Mini-batch Graph Transformer via Virtual Connections
Dongqi Fu, Zhigang Hua, Yan Xie, Jin Fang, Si Zhang, Kaan Sancak, Hao Wu, Andrey Malevich, Jingrui He, Bo Long
- ICLR 2024 poster
- Readers: Everyone
LLM-Rec: Personalized Recommendation via Prompting Large Language Models
Hanjia Lyu, Song Jiang, Hanqing Zeng, Yinglong Xia, Qifan Wang, Si Zhang, Chris Leung, Ren Chen, Jiajie Tang, Jiebo Luo
- ICLR 2024 Conference Withdrawn Submission
- Readers: Everyone

View all 36 publications

Co-Authors

View all 82 co-authors