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Qingyang Li

7 accepted papers

2025

SPPD: Self-training with Process Preference Learning Using Dynamic Value Margin

EMNLP 2025

Enhancing the numerical and logical reasoning capabilities of Large Language Models (LLMs) has become a prominent research focus. Existing approaches exhibit notable limitations: inference-phase techniques, such as Chain of Thought, depend on prompt engineering and pretrained knowledge; sentence-lev

Cited by 0SourcePDFScholar
2025

Towards Reward Fairness in RLHF: From a Resource Allocation Perspective

ACL 2025long

Rewards serve as proxies for human preferences and play a crucial role in Reinforcement Learning from Human Feedback (RLHF). However, if these rewards are inherently imperfect, exhibiting various biases, they can adversely affect the alignment of large language models (LLMs). In this paper, we colle…

2024

Efficient Federated Learning with Smooth Aggregation for Non-IID Data from Multiple Edges

ICASSP 2024accepted

Federated learning (FL) learns an optimal global model by aggregating local models trained on distributed data from different devices. Due to heterogeneous data distributions across devices, local models will be divergent, resulting in the global model’s performance degradation. Recent studies attem…

Cited by 0SourceScholar
2024

Just Ask One More Time! Self-Agreement Improves Reasoning of Language Models in (Almost) All Scenarios

ACL 2024findings

Although chain-of-thought (CoT) prompting combined with language models has achieved encouraging results on complex reasoning tasks, the naive greedy decoding used in CoT prompting usually causes the repetitiveness and local optimality. To address this shortcoming, ensemble-optimization tries to obt…

2024

MoCoKGC: Momentum Contrast Entity Encoding for Knowledge Graph Completion

EMNLP 2024main

In recent years, numerous studies have sought to enhance the capabilities of pretrained language models (PLMs) for Knowledge Graph Completion (KGC) tasks by integrating structural information from knowledge graphs. However, existing approaches have not effectively combined the structural attributes…

2021

Autonomous Decentralized Shape-Based Navigation for Snake Robots in Dense Environments

ICRA 2021poster

In this work, we focus on the autonomous navigation of snake robots in densely-cluttered environments, where collisions between the robot and obstacles are frequent, which could happen often in disaster scenarios, underground caves, or grassland/forest environments. This work takes the view that obs…

Cited by 6SourceScholar
2021

Offline Model-based Adaptable Policy Learning

NeurIPS 2021poster

In reinforcement learning, a promising direction to avoid online trial-and-error costs is learning from an offline dataset. Current offline reinforcement learning methods commonly learn in the policy space constrained to in-support regions by the offline dataset, in order to ensure the robustness of…