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Implementing new features in repository-level codebases is a crucial application of code generation models. However, current benchmarks lack a dedicated evaluation framework for this capability. To fill this gap, we introduce FEA-Bench, a…

Software Engineering · Computer Science 2025-06-23 Wei Li , Xin Zhang , Zhongxin Guo , Shaoguang Mao , Wen Luo , Guangyue Peng , Yangyu Huang , Houfeng Wang , Scarlett Li

While Large Language Models (LLMs) have demonstrated remarkable capabilities in code generation, they often produce solutions that lack guarantees of correctness, robustness, and efficiency. This limitation is particularly acute in domains…

Software Engineering · Computer Science 2025-09-04 Yueke Zhang , Yifan Zhang , Kevin Leach , Yu Huang

Locating files and functions requiring modification in large software repositories is challenging due to their scale and structural complexity. Existing LLM-based methods typically treat this as a repository-level retrieval task and rely on…

Software Engineering · Computer Science 2026-05-27 Zhaoxi Zhang , Yitong Duan , Yanzhi Zhang , Yiming Xu , Zhixiang Wang , Kun Liang , Weikang Li , Jiahui Liang , Deguo Xia , Jizhou Huang , Jiyan He , Yunfang Wu

Most existing code Large Language Model (LLM) benchmarks, e.g., EvalPlus, focus on the code generation tasks. Namely, they contain a natural language description of a problem and ask the LLM to write code to solve the problem. We argue that…

Software Engineering · Computer Science 2024-07-22 Fusen He , Juan Zhai , Minxue Pan

Large Language Models (LLMs) have advanced the automated generation of code from natural language prompts. However, low-resource languages (LRLs) like Bangla remain underrepresented due to the limited availability of instruction-to-code…

Computation and Language · Computer Science 2025-11-11 K M Nafi Asib , Sourav Saha , Mohammed Moshiul Hoque

Large Language Models (LLMs) have garnered remarkable advancements across diverse code-related tasks, known as Code LLMs, particularly in code generation that generates source code with LLM from natural language descriptions. This…

Computation and Language · Computer Science 2025-10-28 Juyong Jiang , Fan Wang , Jiasi Shen , Sungju Kim , Sunghun Kim

Task automation has been greatly empowered by the recent advances in Large Language Models (LLMs) via Python code, where the tasks ranging from software engineering development to general-purpose reasoning. While current benchmarks have…

Repository-level code generation remains challenging due to complex code dependencies and the limitations of large language models (LLMs) in processing long contexts. While retrieval-augmented generation (RAG) frameworks are widely adopted,…

Software Engineering · Computer Science 2025-03-27 Wenchao Gu , Juntao Chen , Yanlin Wang , Tianyue Jiang , Xingzhe Li , Mingwei Liu , Xilin Liu , Yuchi Ma , Zibin Zheng

Code large language models (LLMs) face limitations in repository-level code generation due to their lack of awareness of repository-level dependencies (e.g., user-defined attributes), resulting in dependency errors such as…

Software Engineering · Computer Science 2024-07-19 Chong Wang , Jian Zhang , Yebo Feng , Tianlin Li , Weisong Sun , Yang Liu , Xin Peng

Repository-level code completion remains a challenging task for existing code large language models (code LLMs) due to their limited understanding of repository-specific context and domain knowledge. While retrieval-augmented generation…

Software Engineering · Computer Science 2026-01-28 Tianyue Jiang , Yanli Wang , Yanlin Wang , Daya Guo , Ensheng Shi , Yuchi Ma , Jiachi Chen , Zibin Zheng

The rapid development of Large Language Models (LLMs) for code generation has transformed software development by automating coding tasks with unprecedented efficiency. However, the training of these models on open-source code repositories…

Cryptography and Security · Computer Science 2025-11-04 Wenjie Qu , Yuguang Zhou , Bo Wang , Yuexin Li , Lionel Z. Wang , Jinyuan Jia , Jiaheng Zhang

Large language models that enhance software development tasks, such as code generation, code completion, and code question answering (QA), have been extensively studied in both academia and the industry. The models are integrated into…

Software Engineering · Computer Science 2025-01-08 Jialiang Chen , Kaifa Zhao , Jie Liu , Chao Peng , Jierui Liu , Hang Zhu , Pengfei Gao , Ping Yang , Shuiguang Deng

LLM-based code generation tools are essential to help developers in the software development process. Existing tools often disconnect with the working context, i.e., the code repository, causing the generated code to be not similar to human…

Software Engineering · Computer Science 2024-10-29 Dianshu Liao , Shidong Pan , Xiaoyu Sun , Xiaoxue Ren , Qing Huang , Zhenchang Xing , Huan Jin , Qinying Li

Existing code generation benchmarks for Large Language Models (LLMs) such as HumanEval and MBPP are designed to study LLMs' end-to-end performance, where the benchmarks feed a problem description in natural language as input and examine the…

Software Engineering · Computer Science 2025-02-27 Jiarong Wu , Songqiang Chen , Jialun Cao , Hau Ching Lo , Shing-Chi Cheung

The capabilities of Large Language Models (LLMs) in code generation have been extensively studied, particularly for implementing target functionalities from natural-language descriptions. Alternatively, input-output (I/O) examples provide…

Software Engineering · Computer Science 2025-05-13 Yingjie Fu , Bozhou Li , Linyi Li , Wentao Zhang , Tao Xie

Automated program repair (APR) struggles to scale from isolated functions to full repositories, as it demands a global, task-aware understanding to locate necessary changes. Current methods, limited by context and reliant on shallow…

Software Engineering · Computer Science 2026-03-03 Zhongqiang Pan , Chuanyi Li , Wenkang Zhong , Yi Feng , Bin Luo , Vincent Ng

Large Language Models (LLMs) have already become quite proficient at solving simpler programming tasks like those in HumanEval or MBPP benchmarks. However, solving more complex and competitive programming tasks is still quite challenging…

Artificial Intelligence · Computer Science 2024-03-15 Hung Le , Hailin Chen , Amrita Saha , Akash Gokul , Doyen Sahoo , Shafiq Joty

Evaluating Large Language Models (LLMs) on repository-level feature implementation is a critical frontier in software engineering. However, establishing a benchmark that faithfully mirrors realistic development scenarios remains a…

Computation and Language · Computer Science 2026-02-19 Haorui Chen , Chengze Li , Jia Li

Modern software development demands code that is maintainable, testable, and scalable by organizing the implementation into modular components with iterative reuse of existing codes. We formalize this iterative, multi-turn paradigm as…

Software Engineering · Computer Science 2026-04-16 Sizhe Wang , Zhengren Wang , Dongsheng Ma , Yongan Yu , Rui Ling , Zhiyu Li , Feiyu Xiong , Wentao Zhang

Large language models (LLMs) are incredible and versatile tools for text-based tasks that have enabled countless, previously unimaginable, applications. Retrieval models, in contrast, have not yet seen such capable general-purpose models…

Information Retrieval · Computer Science 2025-09-10 Julian Killingback , Hamed Zamani