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We present a comprehensive framework for enhancing Retrieval-Augmented Generation (RAG) systems through dynamic retrieval strategies and reinforcement fine-tuning. This approach significantly improves large language models on…

机器学习 · 计算机科学 2025-05-21 Sakhinana Sagar Srinivas , Akash Das , Shivam Gupta , Venkataramana Runkana

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a key approach for enhancing LLM reasoning. However, standard frameworks like Group Relative Policy Optimization (GRPO) typically employ a uniform rollout budget, leading…

机器学习 · 计算机科学 2026-02-09 Zhiyuan Yao , Yi-Kai Zhang , Yuxin Chen , Yueqing Sun , Zishan Xu , Yu Yang , Tianhao Hu , Qi Gu , Hui Su , Xunliang Cai

Retrieval-Augmented Generation (RAG) has emerged as a powerful framework for knowledge-intensive tasks, yet its effectiveness in long-context scenarios is often bottlenecked by the retriever's inability to distinguish sparse yet crucial…

信息检索 · 计算机科学 2026-04-14 Hang Ding , Jiawei Zhou , Haiyun Jiang

Retrieval-Augmented Generation (RAG) prevails in Large Language Models. It mainly consists of retrieval and generation. The retrieval modules (a.k.a. retrievers) aim to find useful information used to facilitate the generation modules…

信息检索 · 计算机科学 2025-02-18 Xinping Zhao , Yan Zhong , Zetian Sun , Xinshuo Hu , Zhenyu Liu , Dongfang Li , Baotian Hu , Min Zhang

Visual active search (VAS) has been proposed as a modeling framework in which visual cues are used to guide exploration, with the goal of identifying regions of interest in a large geospatial area. Its potential applications include…

人工智能 · 计算机科学 2023-11-09 Anindya Sarkar , Nathan Jacobs , Yevgeniy Vorobeychik

Retrieval-Augmented Generation (RAG) encounters efficiency challenges when scaling to massive knowledge bases while preserving contextual relevance. We propose Hash-RAG, a framework that integrates deep hashing techniques with systematic…

信息检索 · 计算机科学 2025-06-04 Jinyu Guo , Xunlei Chen , Qiyang Xia , Zhaokun Wang , Jie Ou , Libo Qin , Shunyu Yao , Wenhong Tian

Retrieval Augmented Generation (RAG) is a promising technique for mitigating two key limitations of large language models (LLMs): outdated information and hallucinations. RAG system stores documents as embedding vectors in a database. Given…

信息检索 · 计算机科学 2026-02-10 Taehee Jeong , Xingzhe Zhao , Peizu Li , Markus Valvur , Weihua Zhao

The surge in scientific publications challenges traditional review methods, demanding tools that integrate structured metadata with full-text analysis. Hybrid Retrieval Augmented Generation (RAG) systems, combining graph queries with vector…

Graph-RAG improves LLM reasoning using structured knowledge, yet conventional designs rely on a centralized knowledge graph. In distributed and access-restricted settings (e.g., hospitals or multinational organizations), retrieval must…

人工智能 · 计算机科学 2026-02-10 Longkun Li , Yuanben Zou , Jinghan Wu , Yuqing Wen , Jing Li , Hangwei Qian , Ivor Tsang

Reinforcement Learning from Verifiable Rewards (RLVR) has emerged as a powerful paradigm for enhancing the complex reasoning capabilities of Large Reasoning Models. However, standard outcome-based supervision suffers from a critical…

人工智能 · 计算机科学 2026-03-02 Yanwei Ren , Haotian Zhang , Likang Xiao , Xikai Zhang , Jiaxing Huang , Jiayan Qiu , Baosheng Yu , Quan Chen , Liu Liu

While RAG has greatly enhanced LLMs, extending this paradigm to Time-Series Foundation Models (TSFMs) remains a challenge. This is exemplified in the Predictive Maintenance of the Pressure Regulating and Shut-Off Valve (PRSOV), a…

人工智能 · 计算机科学 2026-03-25 Kenny Ye Liang , Zhongyi Pei , Huan Zhang , Yuhui Liu , Shaoxu Song , Jianmin Wang

Large language models (LLMs) achieve remarkable performance across domains but remain prone to hallucinations and inconsistencies. Retrieval-augmented generation (RAG) mitigates these issues by augmenting model inputs with relevant…

Retrieval-Augmented Generation (RAG) has emerged as a key paradigm for enhancing large language models (LLMs) by incorporating external knowledge. However, current RAG methods face two limitations: (1) they only cover limited RAG scenarios.…

计算与语言 · 计算机科学 2025-01-03 Wanlong Liu , Junying Chen , Ke Ji , Li Zhou , Wenyu Chen , Benyou Wang

Designing reinforcement learning curricula for agile robots traditionally requires extensive manual tuning of reward functions, environment randomizations, and training configurations. We introduce AURA (Autonomous Upskilling with…

机器人学 · 计算机科学 2025-11-06 Alvin Zhu , Yusuke Tanaka , Andrew Goldberg , Dennis Hong

Reinforcement learning from verifiable rewards (RLVR) has improved the reasoning abilities of LLMs, yet a fundamental limitation remains: models cannot learn from problems that are too difficult to solve under their current policy, as these…

The success of DeepSeek-R1 demonstrates the immense potential of using reinforcement learning (RL) to enhance LLMs' reasoning capabilities. This paper introduces Retrv-R1, the first R1-style MLLM specifically designed for multimodal…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Lanyun Zhu , Deyi Ji , Tianrun Chen , Haiyang Wu , Shiqi Wang

Reinforcement learning with verifiable rewards (RLVR) has proven effective in eliciting complex reasoning in large language models (LLMs). However, standard RLVR training often leads to excessively verbose processes (in reasoning tasks) and…

人工智能 · 计算机科学 2025-10-01 Gang Li , Yulei Qin , Xiaoyu Tan , Dingkang Yang , Yuchen Shi , Zihan Xu , Xiang Li , Xing Sun , Ke Li

Large language models are transitioning from generalpurpose knowledge engines to realworld problem solvers, yet optimizing them for deep search tasks remains challenging. The central bottleneck lies in the extreme sparsity of highquality…

Reinforcement Learning with Rubric Rewards (RLRR) is a framework that extends conventional reinforcement learning from human feedback (RLHF) and verifiable rewards (RLVR) by replacing scalar preference signals with structured,…

机器学习 · 计算机科学 2026-05-08 Guangchen Lan , Lian Xiong , Xin Zhou , Hejie Cui , Yuwei Zhang , Mao Li , Zhenyu Shi , Besnik Fetahu , Lihong Li , Xian Li

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…

信息检索 · 计算机科学 2025-06-05 Zhefan Wang , Huanjun Kong , Jie Ying , Wanli Ouyang , Nanqing Dong