CV

Education

Ph.D. student in Artificial Intelligence, Gaoling School of Artificial Intelligence, Renmin University of China, Sept. 2022 - Present
B.S. in Computer Science and Technology, University of Electronic Science and Technology of China, Sept. 2018 - Jun. 2022
- GPA: 3.96/4.0
- Outstanding Graduate of Sichuan Province

Large language model alignment, personalized reasoning, information retrieval, and recommendation systems.
Three first-author CCF-A publications, including one NeurIPS paper.
Three additional CCF-A submissions under review.

Counterfactual Reasoning for Steerable Pluralistic Value Alignment of Large Language Models
Hanze Guo, Jing Yao, Xiao Zhou, Xiaoyuan Yi, Xing Xie. NeurIPS 2025, CCF-A.
SoREX: Towards Self-Explainable Social Recommendation with Relevant Ego-Path Extraction
Hanze Guo, Yijun Ma, Xiao Zhou. ACM Transactions on Information Systems (TOIS), 2025, CCF-A.
Why not Collaborative Filtering in Dual View? Bridging Sparse and Dense Models
Hanze Guo, Jianxun Lian, Xiao Zhou. ACM Transactions on Information Systems (TOIS), 2026, CCF-A.
From Static Personal Values to Contextualized Personalization: Bayesian Personalized Value Alignment for LLMs
Hanze Guo, Jing Yao, Aixuan Song, Xiao Zhou, Xiangxu Zhang, Xiaoyuan Yi, Xing Xie. Under review.
Regularization is Key: Enhancing Cross-Modal Relationships in LLM-Based Time Series Forecasting
Hanze Guo, Cheng Bian, Qi Bi, Yeilei Li, Xiaoyu Li, Ramy Hussein, Xiangxu Zhang, Zijing Zeng, Xiao Zhou. Under review.

PyTorch, Hugging Face Transformers, TRL, and DeepSpeed.
LLM fine-tuning and alignment methods, including LoRA, P-tuning, RLHF, and GRPO.
Prompt engineering, chain-of-thought supervision, and reasoning distillation for small LLMs.
Qwen-family model deployment, large-model training, and inference optimization.
RAG, agents, agent search, and multimodal search applications.