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Shengjun Cheng

4 accepted papers

2025

APT: Improving Specialist LLM Performance with Weakness Case Acquisition and Iterative Preference Training

ACL 2025finding

Large Language Models (LLMs) often require domain-specific fine-tuning to address targeted tasks, which risks degrading their general capabilities. Maintaining a balance between domain-specific enhancements and general model utility is a key challenge. This paper proposes a novel approach named APT…

2025

SeaPO: Strategic Error Amplification for Robust Preference Optimization of Large Language Models

EMNLP 2025

Existing alignment methods for preference optimization of large language models (LLMs) aim to enhance model performance by utilizing pairs of positive and negative samples. However, due to the limited capacity of models in scoring or generating responses, the quality of positive and negative samples

Cited by 0SourcePDFScholar
2024

CommonIT: Commonality-Aware Instruction Tuning for Large Language Models via Data Partitions

EMNLP 2024main

With instruction tuning, Large Language Models (LLMs) can enhance their ability to adhere to commands. Diverging from most works focusing on data mixing, our study concentrates on enhancing the model’s capabilities from the perspective of data sampling during training. Drawing inspiration from the h…

2024

Curriculum Consistency Learning for Conditional Sentence Generation

EMNLP 2024main

Consistency learning (CL) has proven to be a valuable technique for improving the robustness of models in conditional sentence generation (CSG) tasks by ensuring stable predictions across various input data forms. However, models augmented with CL often face challenges in optimizing consistency feat…