Yifan Zeng

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PhD Student in AI šŸ”®


Hi! Iā€™m Yifan Zeng and my name in Chinese is ę›¾äø€å‡” . Iā€™m currently a second-year Computer Science Ph.D. student at Oregon State University, where Iā€™m fortunate to be advised by Huazheng Wang.

My research focuses on the robust planning and decision-making of large language models (LLMs). Iā€™m passionate about developing Agentic AI through multi-agent systems, reinforcement learning, and preference optimization.

Before joining OSU, I worked as a Research Engineer at a technology startup, where I carried out AI solutions in the real-world using deep learning and computer vision. My previous research spans object detection, medical image analysis, self-supervised learning, and AI for science. I received my B.Eng. in Data Science at Zhuhai College of Jilin University in 2023, ranking first in my department with a 3.84/4.0 GPA.

Publications & Preprints

TreeBoN: Enhancing Inference-Time Alignment with Speculative Tree-Search and Best-of-N Sampling

Jiahao Qiuāœ§, Yifu Luāœ§, Yifan Zeng, Jiacheng Guo, Jiayi Geng, Huazheng Wang, Kaixuan Huang, Yue Wu, Mengdi Wang
arXiv preprint ā€¢ arXiv:2410.16033

A Common Pitfall of Margin-based Language Model Alignment: Gradient Entanglement

Hui Yuanāœ§, Yifan Zengāœ§, Yue Wuāœ§, Huazheng Wang, Mengdi Wang, Liu Leqiāœ§
arXiv preprint ā€¢ arXiv:2410.13828

LLM-RankFusion: Mitigating Intrinsic Inconsistency in LLM-based Ranking

Yifan Zengāœ§, Ojas Tendolkarāœ§, Raymond Baartmansāœ§, Qingyun Wu, Huazheng Wang, Lizhong Chen
arXiv preprint ā€¢ arXiv:2406.00231

AutoDefense: Multi-Agent LLM Defense against Jailbreak Attacks

Yifan Zengāœ§, Yiran Wuāœ§, Xiao Zhang, Huazheng Wang, Qingyun Wu
arXiv preprint ā€¢ arXiv:2403.04783

Modeling the Time Evolution of Compact Binary Systems with Machine Learning

Jianqi Yanāœ§, Junjie Luoāœ§, Yifan Zeng, Alex P Leung, Jie Feng, Hong-Hao Zhang, Weipeng Lin
The Astrophysical Journal ā€¢ 973 (2), 163 ā€¢ 2024-09

Enhanced object detection in pediatric bronchoscopy images using YOLO-based algorithms with CBAM attention mechanism

Jianqi Yan, Yifan Zeng, Junhong Lin, Zhiyuan Pei, Jinrui Fan, Chuanyu Fang, Yong Cai
Heliyon ā€¢ 10 (12) ā€¢ 2024-06

Task-Level Consistency Semi-supervised Based Domain Adaptation for Lung Nodules Segmentation

Yifan Zeng, Aohui Pang, Wei Lv, Xiaolin Zhu
Computer and Information Science ā€¢ 181-196 ā€¢ 2022-11

A challenge of deepā€learningā€based object detection for hair follicle dataset

Wei Lv, Tao Chen, Yifan Zeng, Weihong Liu, Chuying Huang
Journal of Cosmetic Dermatology ā€¢ 22 (9), 2565-2578 ā€¢ 2023-09

āœ§ Equal Contribution / Leading Contributors
The papers listed are sorted by the completion date of the initial version.

Misc.

Yifan's Github chart