collaborators

7 papers

cs.AI2026

LiveOIBench: Can Large Language Models Outperform Human Contestants in Informatics Olympiads?

Kaijian Zou, Aaron Xiong, Yunxiang Zhang +6

Competitive programming problems are increasingly used to evaluate the coding capabilities of large language models (LLMs) due to their complexity and ease of verification. Yet, cu…

cs.CL2026

Logit Arithmetic Elicits Long Reasoning Capabilities Without Training

Yunxiang Zhang, Muhammad Khalifa, Lechen Zhang +5

Large reasoning models exhibit long chain-of-thought reasoning with complex strategies such as backtracking and self-verification. Yet, these capabilities typically require resourc…

cs.CL2026

TSUBASA: Improving Long-Horizon Personalization via Evolving Memory and Self-Learning with Context Distillation

Xinliang Frederick Zhang, Lu Wang

Personalized large language models (PLLMs) have garnered significant attention for their ability to align outputs with individual's needs and preferences. However, they still strug…

cs.CL2025

Do LLMs Really Need 10+ Thoughts for "Find the Time 1000 Days Later"? Towards Structural Understanding of LLM Overthinking

Xinliang Frederick Zhang, Anhad Mohananey, Alexandra Chronopoulou +5

Models employing long chain-of-thought (CoT) reasoning have shown superior performance on complex reasoning tasks. Yet, this capability introduces a critical and often overlooked i…

cs.CL2025

PRIME: Large Language Model Personalization with Cognitive Dual-Memory and Personalized Thought Process

Xinliang Frederick Zhang, Nick Beauchamp, Lu Wang

Large language model (LLM) personalization aims to align model outputs with individuals' unique preferences and opinions. While recent efforts have implemented various personalizat…

cs.CL2025

Logit Arithmetic Elicits Long Reasoning Capabilities Without Training

Yunxiang Zhang, Muhammad Khalifa, Lechen Zhang +5

Large reasoning models (LRMs) can do complex reasoning via long chain-of-thought (CoT) involving cognitive strategies such as backtracking and self-correction. Recent studies sugge…