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Large Multimodal Models (LMM) are built across modalities and the misalignment between two modalities can result in "hallucination", generating textual outputs that are not grounded by the multimodal information in context. To address the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Zhiqing Sun , Sheng Shen , Shengcao Cao , Haotian Liu , Chunyuan Li , Yikang Shen , Chuang Gan , Liang-Yan Gui , Yu-Xiong Wang , Yiming Yang , Kurt Keutzer , Trevor Darrell

Retrieval-augmented generation (RAG) connects large language models (LLMs) to external knowledge, but single-round retrieval is often insufficient for complex multi-hop questions. To enhance search capabilities for complex tasks, most…

Computation and Language · Computer Science 2026-05-27 Kun Chen , Qingchao Kong , Zhao Feifei , Wenji Mao

Reinforcement Learning with Verifiable Rewards~(RLVR) has emerged as a powerful learn-to-reason paradigm for large reasoning models to tackle complex tasks. However, the current RLVR paradigm is still not efficient enough, as it works in a…

Computation and Language · Computer Science 2026-03-10 Junjie Zhang , Guozheng Ma , Shunyu Liu , Haoyu Wang , Jiaxing Huang , Ting-En Lin , Fei Huang , Yongbin Li , Dacheng Tao

Retrieval-Augmented Generation (RAG) has emerged as a prominent method for incorporating domain knowledge into Large Language Models (LLMs). While RAG enhances response relevance by incorporating retrieved domain knowledge in the context,…

Computation and Language · Computer Science 2025-03-28 Kushagra Bhushan , Yatin Nandwani , Dinesh Khandelwal , Sonam Gupta , Gaurav Pandey , Dinesh Raghu , Sachindra Joshi

Retrieval-augmented generation (RAG) systems offer a promising approach to reduce hallucinations and improve answer accuracy in large language models (LLMs), a requirement for reliable, financial analysis where answers must be grounded in…

Machine Learning · Computer Science 2026-05-26 Magnus Samuelsen , Wilmer Nyström , Somnath Mazumdar , Mansoor Hussain , Mikkel Strange

Retrieval-augmented generation (RAG) improves large language models (LLMs) by using external knowledge to guide response generation, reducing hallucinations. However, RAG, particularly multi-modal RAG, can introduce new hallucination…

Machine Learning · Computer Science 2025-01-08 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

Reinforcement Learning (RL) has enabled Large Language Models (LLMs) to achieve remarkable reasoning in domains like mathematics and coding, where verifiable rewards provide clear signals. However, extending this paradigm to financial…

Artificial Intelligence · Computer Science 2026-01-09 Rui Sun , Yifan Sun , Sheng Xu , Li Zhao , Jing Li , Daxin Jiang , Cheng Hua , Zuo Bai

Abductive reasoning is the process of making educated guesses to provide explanations for observations. Although many applications require the use of knowledge for explanations, the utilization of abductive reasoning in conjunction with…

Artificial Intelligence · Computer Science 2024-06-21 Jiaxin Bai , Yicheng Wang , Tianshi Zheng , Yue Guo , Xin Liu , Yangqiu Song

Recent advancements in Large Language Models and Retrieval-Augmented Generation have boosted interest in domain-specific question-answering for enterprise products. However, AI Assistants often face challenges in multi-product QA settings,…

Computation and Language · Computer Science 2025-01-28 Parshin Shojaee , Sai Sree Harsha , Dan Luo , Akash Maharaj , Tong Yu , Yunyao Li

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by retrieving external data to mitigate hallucinations and outdated knowledge issues. Benefiting from the strong ability in facilitating diverse data sources and…

Cryptography and Security · Computer Science 2025-07-15 Tianzhe Zhao , Jiaoyan Chen , Yanchi Ru , Haiping Zhu , Nan Hu , Jun Liu , Qika Lin

Reinforcement Learning with Verifiable Rewards (RLVR) has proven effective for complex reasoning tasks with clear correctness signals such as math and coding. However, extending it to real-world reasoning tasks is challenging, as evaluation…

Machine Learning · Computer Science 2025-10-06 Anisha Gunjal , Anthony Wang , Elaine Lau , Vaskar Nath , Yunzhong He , Bing Liu , Sean Hendryx

Large Language Models (LLMs) demonstrate strong reasoning capabilities but struggle with hallucinations and limited transparency. Recently, KG-enhanced LLMs that integrate knowledge graphs (KGs) have been shown to improve reasoning…

Artificial Intelligence · Computer Science 2025-12-10 Minbae Park , Hyemin Yang , Jeonghyun Kim , Kunsoo Park , Hyunjoon Kim

Large language models have shown remarkable language processing and reasoning ability but are prone to hallucinate when asked about private data. Retrieval-augmented generation (RAG) retrieves relevant data that fit into an LLM's context…

Machine Learning · Computer Science 2025-11-13 Alfred Clemedtson , Borun Shi

Reinforcement learning with verifiable rewards (RLVR) typically optimizes for outcome rewards without imposing constraints on intermediate reasoning. This leaves training susceptible to reward hacking, where models exploit loopholes (e.g.,…

Machine Learning · Computer Science 2026-04-20 Songtao Wang , Quang Hieu Pham , Fangcong Yin , Xinpeng Wang , Jocelyn Qiaochu Chen , Greg Durrett , Xi Ye

Retrieval Augmented Generation (RAG) improves correctness of Question Answering (QA) and addresses hallucinations in Large Language Models (LLMs), yet greatly increase computational costs. Besides, RAG is not always needed as may introduce…

Retrieval-Augmented Generation (RAG) aims to enhance large language models (LLMs) to generate more accurate and reliable answers with the help of the retrieved context from external knowledge sources, thereby reducing the incidence of…

Computation and Language · Computer Science 2024-10-17 Jintao Liu , Ruixue Ding , Linhao Zhang , Pengjun Xie , Fie Huang

Graph Retrieval-Augmented Generation (GraphRAG) has emerged as a promising paradigm that organizes external knowledge into structured graphs of entities and relations, enabling large language models (LLMs) to perform complex reasoning…

Computation and Language · Computer Science 2026-04-14 Jinyoung Park , Sanghyeok Lee , Omar Zia Khan , Hyunwoo J. Kim , Joo-Kyung Kim

Large language models (LLMs) offer new opportunities for constructing knowledge graphs (KGs) from unstructured clinical narratives. However, existing approaches often rely on structured inputs and lack robust validation of factual accuracy…

Artificial Intelligence · Computer Science 2026-01-06 Udiptaman Das , Krishnasai B. Atmakuri , Duy Ho , Chi Lee , Yugyung Lee

Effective memory management is essential for large language model agents to navigate long-horizon tasks. Recent research has explored using Reinforcement Learning to develop specialized memory manager agents. However, existing approaches…

Computation and Language · Computer Science 2026-01-14 Weitao Ma , Xiaocheng Feng , Lei Huang , Xiachong Feng , Zhanyu Ma , Jun Xu , Jiuchong Gao , Jinghua Hao , Renqing He , Bing Qin

Retrieval-augmented generation (RAG) incorporates external knowledge into large language models (LLMs), improving their adaptability to downstream tasks and enabling information updates. Surprisingly, recent empirical evidence demonstrates…

Computation and Language · Computer Science 2026-01-08 Yang Sun , Zhiyong Xie , Lixin Zou , Dan Luo , Min Tang , Xiangyu Zhao , Yunwei Zhao , Xixun Lin , Yanxiong Lu , Chenliang Li