Efficient Program Repair with RepairLLaMA: Fine-Tuned Adapters and Code Representations

핵심 개념

RepairLLaMA combines tailored code representations and parameter-efficient fine-tuning to enhance program repair effectiveness, outperforming baselines in fixing bugs with language models.

초록

RepairLLaMA introduces a novel approach to program repair by combining realistic code representations with LoRA fine-tuning. The experiments demonstrate significant improvements in fixing bugs compared to traditional methods. Tailored code representations with fault localization signals play a crucial role in enhancing repair effectiveness.
The study compares different code representation pairs for fine-tuning LLMs, highlighting the importance of fault localization signals. Parameter-efficient fine-tuning proves superior to full-parameter fine-tuning, showcasing better performance and resource efficiency. Additionally, RepairLLaMA outperforms state-of-the-art ChatGPT-based approaches in repairing bugs across various benchmarks.
Key findings include the significance of domain-specific code representations and the effectiveness of LoRA for efficient fine-tuning. The results emphasize the need for expertly designed code representations in automated program repair tasks.

통계

RepairLLaMA correctly fixes 125 Defects4J v2 bugs and 82 HumanEval-Java bugs.
LoRA adapter has only 4M parameters, 1600x smaller than the initial pre-trained LLM (CodeLLama-7B).

인용구

핵심 통찰 요약

RepairLLaMA

by Andr... 게시일 arxiv.org 03-12-2024

https://arxiv.org/pdf/2312.15698.pdf

더 깊은 질문

How can tailored code representations improve the performance of automated program repair systems?

Tailored code representations play a crucial role in enhancing the performance of automated program repair systems. By incorporating fault localization signals and other task-specific information into the input representations, such as indicating where in the code a bug is located or providing context about the buggy code, these representations enable machine learning models to focus on relevant parts of the code when generating fixes. This targeted approach helps guide the model's attention to areas that are more likely to contain bugs, leading to more accurate and effective repairs. Additionally, by aligning with pre-training objectives while introducing domain-specific signals, tailored code representations provide meaningful context for fine-tuning language models for program repair tasks.

What are the implications of parameter-efficient fine-tuning for other software engineering tasks beyond program repair?

Parameter-efficient fine-tuning offers significant implications for various software engineering tasks beyond program repair. One key implication is resource efficiency - by optimizing only a small adapter instead of retraining an entire large language model (LLM), parameter-efficient fine-tuning reduces computational costs and memory requirements. This makes it feasible to leverage powerful LLMs in scenarios where resources may be limited or expensive.
Moreover, parameter-efficient fine-tuning can enhance model generalization and prevent overfitting when training data is scarce or diverse. The constrained optimization process acts as an implicit regularizer, potentially improving model robustness and adaptability across different datasets or domains.
In practical terms, parameter-efficient fine-tuning could be applied to tasks like natural language processing (NLP), source code generation, sentiment analysis, or any other area where pre-trained LLMs can be adapted for specific applications without full retraining. This approach opens up opportunities for leveraging advanced AI models effectively in real-world software development projects with varying constraints.

How can advanced prompting strategies enhance the capabilities of general-purpose language models like GPT-4?

Advanced prompting strategies play a vital role in maximizing the capabilities of general-purpose language models like GPT-4 by guiding them towards producing desired outputs based on specific tasks or domains. These strategies involve designing prompts that provide clear instructions and context for what output is expected from the model.
By crafting sophisticated prompts tailored to particular use cases such as automated program repair systems, researchers can elicit more accurate responses from LLMs like GPT-4. Prompting techniques help steer these large-scale models towards generating relevant solutions by framing questions or inputs in ways that prompt appropriate responses aligned with predefined goals.
Furthermore, iterative prompting approaches allow users to refine their queries based on previous responses from LLMs iteratively. This iterative feedback loop enables continuous improvement in communication between users and machines while ensuring better outcomes over multiple interactions.
Overall, advanced prompting strategies empower general-purpose language models like GPT-4 to perform effectively across diverse applications by enabling precise control over their output generation processes through well-crafted prompts designed specifically for each task at hand.