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The performance of language models is commonly limited by insufficient knowledge and constrained reasoning. Prior approaches such as Retrieval-Augmented Generation (RAG) and Chain-of-Thought (CoT) address these issues by incorporating…

Information Retrieval · Computer Science 2026-03-31 Xinyi Duan , Yuanrong Tang , Jiangtao Gong

Retrieval-augmented generation (RAG) enhances large language models (LLMs) for domain-specific question-answering (QA) tasks by leveraging external knowledge sources. However, traditional RAG systems primarily focus on relevance-based…

Computation and Language · Computer Science 2025-05-26 Mohammad Reza Rezaei , Adji Bousso Dieng

A key barrier to using reinforcement learning (RL) in many real-world applications is the requirement of a large number of system interactions to learn a good control policy. Off-policy and Offline RL methods have been proposed to reduce…

Machine Learning · Computer Science 2022-12-02 Wenqi Cui , Linbin Huang , Weiwei Yang , Baosen Zhang

A Comparison of Independent and Joint Fine-tuning Strategies for Retrieval-Augmented Generation Download PDF Neal Gregory Lawton, Alfy Samuel, Anoop Kumar, Daben Liu Published: 20 Aug 2025, Retrieval augmented generation (RAG) is a popular…

Computation and Language · Computer Science 2025-10-21 Neal Gregory Lawton , Alfy Samuel , Anoop Kumar , Daben Liu

We propose a framework - Prompt, Generate, Train (PGT) - to efficiently develop a generative question-answering model for open-book question-answering over a proprietary collection of text documents. The framework adapts a retriever…

Machine Learning · Computer Science 2023-07-27 C. S. Krishna

Extending the capabilities of Large Language Models (LLMs) with functions or tools for environment interaction has led to the emergence of the agent paradigm. In industry, training an LLM is not always feasible because of the scarcity of…

Computation and Language · Computer Science 2025-01-14 Saptarshi Sengupta , Harsh Vashistha , Kristal Curtis , Akshay Mallipeddi , Abhinav Mathur , Joseph Ross , Liang Gou

Retrieval-Augmented Generation (RAG) is widely employed to mitigate risks such as hallucinations and knowledge obsolescence in medical question answering, yet its predominantly single-round, static retrieval paradigm misaligns with the…

Computation and Language · Computer Science 2026-05-19 Yongfeng Huang , Ruiying Chen , James Cheng

Multimodal Large Language Models (MLLMs) have shown impressive capabilities in jointly understanding text, images, and videos, often evaluated via Visual Question Answering (VQA). However, even state-of-the-art MLLMs struggle with…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Alberto Compagnoni , Marco Morini , Sara Sarto , Federico Cocchi , Davide Caffagni , Marcella Cornia , Lorenzo Baraldi , Rita Cucchiara

Retrieval-augmented generation (RAG) systems have made significant progress in solving complex multi-hop question answering (QA) tasks in the English scenario. However, RAG systems inevitably face the application scenario of retrieving…

Computation and Language · Computer Science 2026-03-20 Yilin Wang , Yuchun Fan , Jiaoyang Li , Ziming Zhu , Yongyu Mu , Qiaozhi He , Tong Xiao , Jingbo Zhu

Associative thinking--the ability to connect seemingly unrelated ideas--is a foundational element of human creativity and problem-solving. This paper explores whether reinforcement learning (RL) guided by associative thinking principles can…

Artificial Intelligence · Computer Science 2025-11-25 Mukul Singh , Ananya Singha , Aishni Parab , Pronita Mehrotra , Sumit Gulwani

Retrieval-Augmented Generation (RAG) systems have emerged as a promising solution to mitigate LLM hallucinations and enhance their performance in knowledge-intensive domains. However, these systems are vulnerable to adversarial poisoning…

Information Retrieval · Computer Science 2025-07-29 Jinyan Su , Jin Peng Zhou , Zhengxin Zhang , Preslav Nakov , Claire Cardie

This study addresses the critical need for enhanced situational awareness in autonomous driving (AD) by leveraging the contextual reasoning capabilities of large language models (LLMs). Unlike traditional perception systems that rely on…

Artificial Intelligence · Computer Science 2025-01-09 Xuewen Luo , Fan Ding , Fengze Yang , Yang Zhou , Junnyong Loo , Hwa Hui Tew , Chenxi Liu

Large Language Models (LLMs) have been integrated into recommender systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant items…

Information Retrieval · Computer Science 2025-03-27 Sichun Luo , Jian Xu , Xiaojie Zhang , Linrong Wang , Sicong Liu , Hanxu Hou , Linqi Song

Large Language Model (LLM)-based agents have recently shown impressive capabilities in complex reasoning and tool use via multi-step interactions with their environments. While these agents have the potential to tackle complicated tasks,…

Artificial Intelligence · Computer Science 2025-11-04 Jiaye Lin , Yifu Guo , Yuzhen Han , Sen Hu , Ziyi Ni , Licheng Wang , Mingguang Chen , Hongzhang Liu , Ronghao Chen , Yangfan He , Daxin Jiang , Binxing Jiao , Chen Hu , Huacan Wang

Sequential recommendation aims to predict a user's next action in large-scale recommender systems. While traditional methods often suffer from insufficient information interaction, recent generative recommendation models partially address…

Information Retrieval · Computer Science 2026-02-10 Haibo Xing , Hao Deng , Yucheng Mao , Lingyu Mu , Jinxin Hu , Yi Xu , Hao Zhang , Jiahao Wang , Shizhun Wang , Yu Zhang , Xiaoyi Zeng , Jing Zhang

Data synthesis for training large reasoning models offers a scalable alternative to limited, human-curated datasets, enabling the creation of high-quality data. However, existing approaches face several challenges: (i) indiscriminate…

Artificial Intelligence · Computer Science 2026-05-11 Yongxian Wei , Yilin Zhao , Zixuan Hu , Li Shen , Xinrui Chen , Runxi Cheng , Sinan Du , Hao Yu , Chun Yuan , Dian Li

Training models on synthetic data has emerged as an increasingly important strategy for improving the performance of generative AI. This approach is particularly helpful for large multimodal models (LMMs) due to the relative scarcity of…

Artificial Intelligence · Computer Science 2026-01-13 Gabriela Ben Melech Stan , Estelle Aflalo , Avinash Madasu , Vasudev Lal , Phillip Howard

Large language models (LLMs) have shown promise in medical question answering but often struggle with hallucinations and shallow reasoning, particularly in tasks requiring nuanced clinical understanding. Retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2025-08-25 Ziyu Wang , Elahe Khatibi , Amir M. Rahmani

Although large language models rely on chain-of-thought for complex reasoning, the overthinking phenomenon severely degrades inference efficiency. Existing reinforcement learning methods compress reasoning chains by designing elaborate…

Machine Learning · Computer Science 2026-05-13 Zizhao Chen , Yuying Li , Siting Lin , Lianxi Wang

Retrieval-augmented generation (RAG) has become a powerful framework for enhancing large language models in knowledge-intensive and reasoning tasks. However, as reasoning chains deepen or search trees expand, RAG systems often face two…

Information Retrieval · Computer Science 2026-01-19 Shuguang Jiao , Xinyu Xiao , Yunfan Wei , Shuhan Qi , Chengkai Huang , Quan Z. Michael Sheng , Lina Yao