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Information retrieval systems are crucial for enabling effective access to large document collections. Recent approaches have leveraged Large Language Models (LLMs) to enhance retrieval performance through query augmentation, but often rely…

Information Retrieval · Computer Science 2025-04-15 Pengcheng Jiang , Jiacheng Lin , Lang Cao , Runchu Tian , SeongKu Kang , Zifeng Wang , Jimeng Sun , Jiawei Han

In-Context Learning (ICL) enables Large Language Models (LLMs) to perform new tasks by conditioning on prompts with relevant information. Retrieval-Augmented Generation (RAG) enhances ICL by incorporating retrieved documents into the LLM's…

Machine Learning · Computer Science 2024-12-02 Marie Al Ghossein , Emile Contal , Alexandre Robicquet

Retrieval-augmented generation (RAG) is a common way to ground language models in external documents and up-to-date information. Classical retrieval systems relied on lexical methods such as BM25, which rank documents by term overlap with…

Computation and Language · Computer Science 2026-03-05 Martin Asenov , Kenza Benkirane , Dan Goldwater , Aneiss Ghodsi

Code summarization is a critical task in natural language processing and software engineering, which aims to generate concise descriptions of source code. Recent advancements have improved the quality of these summaries, enhancing code…

Computation and Language · Computer Science 2025-02-25 Vladimir Makharev , Vladimir Ivanov

In software development, the predominant emphasis on functionality often supersedes security concerns, a trend gaining momentum with AI-driven automation tools like GitHub Copilot. These tools significantly improve developers' efficiency in…

Utilizing large language models (LLMs) for document reranking has been a popular and promising research direction in recent years, many studies are dedicated to improving the performance and efficiency of using LLMs for reranking. Besides,…

Information Retrieval · Computer Science 2025-04-11 Qi Liu , Haozhe Duan , Yiqun Chen , Quanfeng Lu , Weiwei Sun , Jiaxin Mao

Literature search questions, such as "Where can I find research on the evaluation of consistency in generated summaries?" pose significant challenges for modern search engines and retrieval systems. These questions often require a deep…

Information Retrieval · Computer Science 2024-10-18 Anirudh Ajith , Mengzhou Xia , Alexis Chevalier , Tanya Goyal , Danqi Chen , Tianyu Gao

In competitive programming task, problem statements are often embedded within elaborate narrative backgrounds, requiring deep understanding of the underlying solutions to successfully complete the tasks. Current code generation models…

Information Retrieval · Computer Science 2025-09-03 Shiwen Zhang , Lingxiang Wang , Hainan Zhang , Ziwei Wang , Sijia Wen , Zhiming Zheng

Large language models (LLMs) commonly struggle with specialized or emerging topics which are rarely seen in the training corpus. Graph-based retrieval-augmented generation (GraphRAG) addresses this by structuring domain knowledge as a graph…

Information Retrieval · Computer Science 2025-06-05 Zhefan Wang , Huanjun Kong , Jie Ying , Wanli Ouyang , Nanqing Dong

Large language models for code (CodeLLMs) have demonstrated remarkable success in standalone code completion and generation, sometimes even surpassing human performance, yet their effectiveness diminishes in repository-level settings where…

Software Engineering · Computer Science 2026-02-13 Minh Le-Anh , Huyen Nguyen , Khanh An Tran , Nam Le Hai , Linh Ngo Van , Nghi D. Q. Bui , Bach Le

Several closed-source LLMs have consistently outperformed open-source alternatives in program repair tasks, primarily due to their superior reasoning capabilities and extensive pre-training. This paper introduces Repairity, a novel…

Software Engineering · Computer Science 2025-06-05 Xunzhu Tang , Jacques Klein , Tegawendé F. Bissyandé

With over 200 million published academic documents and millions of new documents being written each year, academic researchers face the challenge of searching for information within this vast corpus. However, existing retrieval systems…

Information Retrieval · Computer Science 2024-05-21 Gengchen Wei , Xinle Pang , Tianning Zhang , Yu Sun , Xun Qian , Chen Lin , Han-Sen Zhong , Wanli Ouyang

LLM-reranking is limited by the top-k documents retrieved by vector similarity, which neither enables contextual query-document token interactions nor captures multimodal relevance distributions. While LLM query reformulation attempts to…

Information Retrieval · Computer Science 2026-03-24 Anton Korikov , Scott Sanner

Retrieval-Augmented Generation (RAG) is a powerful technique for enriching Large Language Models (LLMs) with external knowledge, allowing for factually grounded responses, a critical requirement in high-stakes domains such as healthcare.…

Computation and Language · Computer Science 2025-10-07 Eduardo Martínez Rivera , Filippo Menolascina

Code search is an important and well-studied task, but it usually means searching for code by a text query. We argue that using a code snippet (and possibly an error traceback) as a query while looking for bugfixing instructions and code…

Computation and Language · Computer Science 2024-05-28 Ivan Sedykh , Dmitry Abulkhanov , Nikita Sorokin , Sergey Nikolenko , Valentin Malykh

The selection of software technologies is an important but complex task. We consider developers of JavaScript (JS) applications, for whom the assessment of JS libraries has become difficult and time-consuming due to the growing number of…

Software Engineering · Computer Science 2022-05-31 Hernan C. Vazquez , J. Andres Diaz Pace , Claudia Marcos , Santiago Vidal

Despite Retrieval-Augmented Generation improving code completion, traditional retrieval methods struggle with information redundancy and a lack of diversity within limited context windows. To solve this, we propose a resource-optimized…

Software Engineering · Computer Science 2025-10-14 Xiaohan Chen , Zhongying Pan , Quan Feng , Yu Tian , Shuqun Yang , Mengru Wang , Lina Gong , Yuxia Geng , Piji Li , Xiang Chen

Information retrieval (IR) is essential in search engines and dialogue systems as well as natural language processing tasks such as open-domain question answering. IR serve an important function in the biomedical domain, where content and…

Information Retrieval · Computer Science 2022-01-20 Man Luo , Arindam Mitra , Tejas Gokhale , Chitta Baral

Large Language Models (LLMs) have demonstrated impressive capabilities in code generation. However, current evaluation datasets suffer from issues such as the lack of runnable test cases, deviation from the distribution of real-world code,…

Software Engineering · Computer Science 2025-08-06 Haiyang Li

Augmenting language models with a retrieval mechanism has been shown to significantly improve their performance while keeping the number of parameters low. Retrieval-augmented models commonly rely on a semantic retrieval mechanism based on…

Computation and Language · Computer Science 2023-07-06 Ehsan Doostmohammadi , Tobias Norlund , Marco Kuhlmann , Richard Johansson