Jiwei Tang (汤济玮)

M.Eng. Student in Computer Science and Technology, Tsinghua University
Email GitHub Google Scholar Curriculum Vitae
Jiwei Tang
Current Role
Research Intern at Ant Group
Advisor
Prof. Hai-Tao Zheng
Selected Highlight
ACL 2026 Best Paper Nomination

About Me

I am a Master's student in Computer Science and Technology at Tsinghua University, advised by Prof. Hai-Tao Zheng. My research lies in Natural Language Processing, with a particular focus on Large Language Models. I am currently a Research Intern at Ling Team of Ant Group (Foundation Model Team), where I work on efficient agentic language models. I am also seeking PhD positions for Fall 2027.

Research Interests: Machine Learning · Natural Language Processing · Large Language Models

Education

M.Eng., Computer Science and Technology
Tsinghua University | 2024.09 – 2027.06 (Expected)
🏆 Department-level Second-class Scholarship
B.Eng., Computer Science and Technology
Jinan University | 2020.09 – 2024.06 | Rank: 1 / 99
🏆 National Scholarship · Outstanding Graduate · Outstanding Thesis · Excellent Student × 2 · First-class Scholarship × 2

Experience

Research Intern — Alibaba Group
Future Living Lab · Foundation Model Team · 2025.07 – 2026.04
  • Working on context compression for large language models at the foundation model team
  • Published first-author paper at ICLR 2026 (247K+ views)
  • Published first-author paper at ACL 2026 (217K+ views)
  • One paper under review at EMNLP 2026
Research Intern — Ant Group
Post Training at Ling Team · Foundation Model Team · 2026.04 – Present
  • Improving agentic capability of Ling Team

Skills

Programming: Python, PyTorch, LaTeX, Linux, SSH
Language: Chinese (Native), English (CET-6)

Main Publications (* denotes equal contribution)

GMSA: Enhancing Context Compression via Group Merging and Layer Semantic Alignment
Jiwei Tang, et al.
ACL 2026 (CCF-A), Oral Presentation, Best Paper Nomination
Paper Code
Featured in the 400+ stars GitHub repository Awesome-Collection-Token-Reduction .
COMI: Coarse-to-Fine Context Compression via Marginal Information Gain
Jiwei Tang, et al.
ICLR 2026 (CCF-A, Score: 8 6 6 6, 247K+ views)
Paper Code Twitter QbitAI
Featured in the 400+ stars GitHub repository Awesome-Collection-Token-Reduction .
Read As Human: Compressing Context via Parallelizable Close Reading and Skimming
Jiwei Tang, et al.
ACL 2026 (CCF-A, 217K+ views)
Paper Code Twitter QbitAI
Featured in the 400+ stars GitHub repository Awesome-Collection-Token-Reduction .
Perception Compressor: A Training-Free Prompt Compression Framework in Long Context Scenarios
Jiwei Tang, et al.
NAACL 2025 Findings (CCF-B)
Paper Code
Featured in the 400+ stars GitHub repository Awesome-Collection-Token-Reduction .
When Hard Negatives Hurt: Bridging the Generative-Discriminative Gap in Hard Negative Synthesis
Zhicheng Zhang*, Jiwei Tang*, et al.
KDD 2026 (CCF-A)
Paper
CoS: Towards Optimal Event Scheduling via Chain-of-Scheduling
Yiming Zhao, Jiwei Tang, et al.
AAAI 2026 (CCF-A)
Paper
Beyond Position Bias: Shifting Context Compression from Position-Driven to Semantic-Driven
Jiwei Tang, et al.
NeurIPS 2026 Under Review (CCF-A)
Paper
CoS-R1: Enhancing Chain-of-Scheduling Reasoning Capability via Reinforcement Learning
Jiwei Tang, et al.
TMC 2026 Under Review (CCF-A)
Paper