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Li Lyna Zhang

10 accepted papers

2026

LoongRL: Reinforcement Learning for Advanced Reasoning over Long Contexts

ICLR 2026oral

Reasoning over long contexts is essential for large language models. While reinforcement learning (RL) enhances short-context reasoning by inducing "Aha" moments in chain-of-thought, the advanced thinking patterns required for long-context reasoning remain largely unexplored, and high-difficulty RL…

Cited by 0SourcecodeScholar
2025

LongRoPE2: Near-Lossless LLM Context Window Scaling

ICML 2025poster

LongRoPE2 is a novel approach that extends the effective context window of pre-trained large language models (LLMs) to the target length, while preserving the performance on the original shorter context window. This is achieved by three contributions: (1) a hypothesis that insufficient training in…

2025

Mutual Reasoning Makes Smaller LLMs Stronger Problem-Solver

ICLR 2025poster

This paper introduces rStar, a self-play mutual reasoning approach that significantly improves reasoning capabilities of small language models (SLMs) without fine-tuning or superior models. rStar decouples reasoning into a self-play mutual generation-discrimination process. First, a target SLM augme…

2025

rStar-Coder: Scaling Competitive Code Reasoning with a Large-Scale Verified Dataset

NeurIPS 2025poster

Advancing code reasoning in large language models (LLMs) is fundamentally limited by the scarcity of high-difficulty datasets, especially those with verifiable input-output test cases necessary for rigorous solution validation at scale. We introduce rStar-Coder, which significantly improves LLM…

Cited by 0SourcecodeScholar
2025

rStar-Math: Small LLMs Can Master Math Reasoning with Self-Evolved Deep Thinking

ICML 2025oral

We present rStar-Math to demonstrate that small language models (SLMs) can rival or even surpass the math reasoning capability of OpenAI o1, without distillation from superior models. rStar-Math achieves this by exercising ``deep thinking'' through Monte Carlo Tree Search (MCTS), where a math polic…

2024

Fewer is More: Boosting Math Reasoning with Reinforced Context Pruning

EMNLP 2024main

Large Language Models (LLMs) have shown impressive capabilities, yet they still struggle with math reasoning. In this work, we propose CoT-Influx, a novel approach that pushes the boundary of few-shot Chain-of-Thoughts (CoT) learning to improve LLM mathematical reasoning. Motivated by the observatio…

2024

LongRoPE: Extending LLM Context Window Beyond 2 Million Tokens

ICML 2024poster

Large context window is a desirable feature in large language models (LLMs). However, due to high fine-tuning costs, scarcity of long texts, and catastrophic values introduced by new token positions, current extended context windows are limited to around 128k tokens. This paper introduces LongRoPE t…

2024

VPTQ: Extreme Low-bit Vector Post-Training Quantization for Large Language Models

EMNLP 2024main

Scaling model size significantly challenges the deployment and inference of Large Language Models (LLMs). Due to the redundancy in LLM weights, recent research has focused on pushing weight-only quantization to extremely low-bit (even down to 2 bits). It reduces memory requirements, optimizes storag…

2023

ElasticViT: Conflict-aware Supernet Training for Deploying Fast Vision Transformer on Diverse Mobile Devices

ICCV 2023poster

Neural Architecture Search (NAS) has shown promising performance in the automatic design of vision transformers (ViT) exceeding 1G FLOPs. However, designing lightweight and low-latency ViT models for diverse mobile devices remains a big challenge. In this work, we propose ElasticViT, a two-stage NAS…

Cited by 25PDFcodeScholar
2023

SpaceEvo: Hardware-Friendly Search Space Design for Efficient INT8 Inference

ICCV 2023poster

The combination of Neural Architecture Search (NAS) and quantization has proven successful in automatically designing low-FLOPs INT8 quantized neural networks (QNN). However, directly applying NAS to design accurate QNN models that achieve low latency on real-world devices leads to inferior performa…

Cited by 5PDFcodeScholar