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Retrieval-augmented generation (RAG) systems address complex user requests by decomposing them into subqueries, retrieving potentially relevant documents for each, and then aggregating them to generate an answer. Efficiently selecting…

人工智能 · 计算机科学 2025-10-22 Roxana Petcu , Kenton Murray , Daniel Khashabi , Evangelos Kanoulas , Maarten de Rijke , Dawn Lawrie , Kevin Duh

Pretraining Large Language Models (LLMs) on large corpora of textual data is now a standard paradigm. When using these LLMs for many downstream applications, it is common to additionally bake in new knowledge (e.g., time-critical news, or…

计算与语言 · 计算机科学 2024-06-06 Tianjun Zhang , Shishir G. Patil , Naman Jain , Sheng Shen , Matei Zaharia , Ion Stoica , Joseph E. Gonzalez

We present a novel approach for training small language models for reasoning-intensive document ranking that combines knowledge distillation with reinforcement learning optimization. While existing methods often rely on expensive human…

信息检索 · 计算机科学 2025-07-01 Chris Samarinas , Hamed Zamani

As Large Language Models (LLMs) increasingly address domain-specific problems, their application in the financial sector has expanded rapidly. Tasks that are both highly valuable and time-consuming, such as analyzing financial statements,…

计算与语言 · 计算机科学 2024-11-28 Joohyun Lee , Minji Roh

We present AgenticRAG, a practical agentic harness for retrieval and analysis over enterprise knowledge bases. Standard RAG pipelines place significant burden of grounding on the search stack, constraining the language model to a fixed…

人工智能 · 计算机科学 2026-05-08 Susheel Suresh , Hazel Mak , Shangpo Chou , Fred Kroon , Sahil Bhatnagar

Retrieval-Augmented Generation (RAG) systems commonly use chunking strategies for retrieval, which enhance large language models (LLMs) by enabling them to access external knowledge, ensuring that the retrieved information is up-to-date and…

计算与语言 · 计算机科学 2025-07-15 Hai Toan Nguyen , Tien Dat Nguyen , Viet Ha Nguyen

A common way to extend the memory of large language models (LLMs) is by retrieval augmented generation (RAG), which inserts text retrieved from a larger memory into an LLM's context window. However, the context window is typically limited…

计算与语言 · 计算机科学 2025-02-14 Marc Pickett , Jeremy Hartman , Ayan Kumar Bhowmick , Raquib-ul Alam , Aditya Vempaty

Existing approaches typically rely on large-scale fine-tuning to adapt LLMs for information reranking tasks, which is computationally expensive. In this work, we demonstrate that modern LLMs can be effectively adapted using only minimal,…

计算与语言 · 计算机科学 2025-10-28 Tingyu Song , Yilun Zhao , Siyue Zhang , Chen Zhao , Arman Cohan

Retrieval-Augmented Generation (RAG) enhances the accuracy of Large Language Model (LLM) responses by leveraging relevant external documents during generation. Although previous studies noted that retrieving many documents can degrade…

计算与语言 · 计算机科学 2025-12-01 Shahar Levy , Nir Mazor , Lihi Shalmon , Michael Hassid , Gabriel Stanovsky

Reinforcement learning has recently shown promise in improving retrieval-augmented generation (RAG). Despite these advances, its effectiveness in multi-hop question answering (QA) remains limited by two fundamental limitations: (i) global…

计算与语言 · 计算机科学 2026-03-17 Jinchang Luo , Mingquan Cheng , Fan Wan , Ni Li , Xiaoling Xia , Shuangshuang Tian , Tingcheng Bian , Haiwei Wang , Haohuan Fu , Yan Tao

Retrieval Augment Generation (RAG) is a recent advancement in Open-Domain Question Answering (ODQA). RAG has only been trained and explored with a Wikipedia-based external knowledge base and is not optimized for use in other specialized…

Large language models (LLMs) have recently shown strong progress on scientific reasoning, yet two major bottlenecks remain. First, explicit retrieval fragments reasoning, imposing a hidden "tool tax" of extra tokens and steps. Second,…

Retrieval-Augmented Generation (RAG) methods augment the input of Large Language Models (LLMs) with relevant retrieved passages, reducing factual errors in knowledge-intensive tasks. However, contemporary RAG approaches suffer from…

计算与语言 · 计算机科学 2024-05-24 Dian Jiao , Li Cai , Jingsheng Huang , Wenqiao Zhang , Siliang Tang , Yueting Zhuang

Retrieval-augmented generation (RAG) has become a fundamental paradigm for addressing the challenges faced by large language models in handling real-time information and domain-specific problems. Traditional RAG systems primarily rely on…

计算与语言 · 计算机科学 2025-09-11 YiHan Jiao , ZheHao Tan , Dan Yang , DuoLin Sun , Jie Feng , Yue Shen , Jian Wang , Peng Wei

Large language models (LLMs) have the remarkable ability to solve new tasks with just a few examples, but they need access to the right tools. Retrieval Augmented Generation (RAG) addresses this problem by retrieving a list of relevant…

信息检索 · 计算机科学 2023-12-12 Raviteja Anantha , Tharun Bethi , Danil Vodianik , Srinivas Chappidi

While RAG demonstrates remarkable capabilities in LLM applications, its effectiveness is hindered by the ever-increasing length of retrieved contexts, which introduces information redundancy and substantial computational overhead. Existing…

计算与语言 · 计算机科学 2025-10-28 Yixiong Fang , Tianran Sun , Yuling Shi , Xiaodong Gu

Recently, Retrieval Augmented Generation (RAG) has shifted focus to multi-retrieval approaches to tackle complex tasks such as multi-hop question answering. However, these systems struggle to decide when to stop searching once enough…

信息检索 · 计算机科学 2026-04-23 Gabriel Iturra-Bocaz , Petra Galuscakova

Long document re-ranking has been a challenging problem for neural re-rankers based on deep language models like BERT. Early work breaks the documents into short passage-like chunks. These chunks are independently mapped to scalar scores or…

信息检索 · 计算机科学 2022-06-07 Luyu Gao , Jamie Callan

Biomedical question-answering (QA) systems require effective retrieval and generation components to ensure accuracy, efficiency, and scalability. This study systematically examines a Retrieval-Augmented Generation (RAG) system for…

信息检索 · 计算机科学 2026-01-14 Linus Stuhlmann , Michael Alexander Saxer , Jonathan Fürst

The performance of Retrieval-Augmented Generation (RAG) systems in information retrieval is significantly influenced by the characteristics of the documents being processed. In this study, the structured nature of textbooks, the conciseness…

信息检索 · 计算机科学 2024-09-23 Esmaeil Narimissa , David Raithel