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Efficient attention deployment in visual search is limited by human visual memory, yet this limitation can be offset by exploiting the environment's structure. This paper introduces a computational cognitive model that simulates how the…

人机交互 · 计算机科学 2024-09-16 Saku Sourulahti , Christian P Janssen , Jussi PP Jokinen

Graph Retrieval-Augmented Generation (GraphRAG) enhances factual reasoning in LLMs by structurally modeling knowledge through graph-based representations. However, existing GraphRAG approaches face two core limitations: shallow retrieval…

计算与语言 · 计算机科学 2025-10-01 Cehao Yang , Xiaojun Wu , Xueyuan Lin , Chengjin Xu , Xuhui Jiang , Yuanliang Sun , Jia Li , Hui Xiong , Jian Guo

Retrieval-Augmented Generation (RAG) has emerged as a powerful framework to overcome the knowledge limitations of Large Language Models (LLMs) by integrating external retrieval with language generation. While early RAG systems based on…

人工智能 · 计算机科学 2025-06-13 Jintao Liang , Gang Su , Huifeng Lin , You Wu , Rui Zhao , Ziyue Li

Chain-of-Thought (CoT) reasoning has become a powerful framework for improving complex problem-solving capabilities in Multimodal Large Language Models (MLLMs). However, the verbose nature of textual reasoning introduces significant…

计算与语言 · 计算机科学 2026-05-05 Xuan Shen , Yizhou Wang , Yufa Zhou , Xiangxi Shi , Pu Zhao , Yanzhi Wang , Jiuxiang Gu

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

What does it mean to plan? Current agentic systems, whether scaffolded workflows or end-to-end policies, rely on reactive decision-making: selecting the next action via a fixed procedure with at most undifferentiated adaptive computation…

人工智能 · 计算机科学 2026-05-22 Mingkai Deng , Jinyu Hou , Zhiting Hu , Eric Xing

Analytical information needs, such as trend analysis and causal impact assessment, are prevalent across various domains including law, finance, science, and much more. However, existing information retrieval paradigms, whether based on…

信息检索 · 计算机科学 2026-02-13 Yiteng Tu , Shuo Miao , Weihang Su , Yiqun Liu , Qingyao Ai

Test-time scaling has emerged as an effective way to improve language models on challenging reasoning tasks. However, most existing methods treat each problem in isolation and do not systematically reuse knowledge from prior reasoning…

计算与语言 · 计算机科学 2026-04-21 Di Wu , Devendra Singh Sachan , Wen-tau Yih , Mingda Chen

To achieve scenario intelligence, humans must transfer knowledge to robots by developing goal-oriented algorithms, which are sometimes insensitive to dynamically changing environments. While deep reinforcement learning achieves significant…

人工智能 · 计算机科学 2018-07-31 Tingguang Li , Jin Pan , Delong Zhu , Max Q. -H. Meng

Users increasingly expect modern search systems to offer a unified interface that seamlessly retrieves information from diverse data sources and formats. However, current information retrieval (IR) evaluation benchmarks have not kept pace…

信息检索 · 计算机科学 2026-05-13 Mehmet Deniz Türkmen , Suchana Datta , Dwaipayan Roy , Daniel Hienert , Philipp Mayr , Derek Greene

Developing an automated driving system capable of navigating complex traffic environments remains a formidable challenge. Unlike rule-based or supervised learning-based methods, Deep Reinforcement Learning (DRL) based controllers eliminate…

机器学习 · 计算机科学 2025-01-28 Zhihao Zhang , Ekim Yurtsever , Keith A. Redmill

Large Language Models (LLMs) excel at reasoning and generation but are inherently limited by static pretraining data, resulting in factual inaccuracies and weak adaptability to new information. Retrieval-Augmented Generation (RAG) addresses…

计算与语言 · 计算机科学 2025-11-03 Qi Luo , Xiaonan Li , Yuxin Wang , Tingshuo Fan , Yuan Li , Xinchi Chen , Xipeng Qiu

The rapid growth of Retrieval-Augmented Generation (RAG) has created a proliferation of toolkits, yet a fundamental gap remains between experimental prototypes and robust, production-ready systems. We present SearchGym, a modular…

信息检索 · 计算机科学 2026-03-06 Jerome Tze-Hou Hsu

Reinforcement learning has been successful in many tasks ranging from robotic control, games, energy management etc. In complex real world environments with sparse rewards and long task horizons, sample efficiency is still a major…

人工智能 · 计算机科学 2021-10-12 Bharat Prakash , Nicholas Waytowich , Tim Oates , Tinoosh Mohsenin

This paper addresses emerging system-level challenges in heterogeneous retrieval-augmented generation (RAG) serving, where complex multi-stage workflows and diverse request patterns complicate efficient execution. We present HedraRAG, a…

数据库 · 计算机科学 2025-07-15 Zhengding Hu , Vibha Murthy , Zaifeng Pan , Wanlu Li , Xiaoyi Fang , Yufei Ding , Yuke Wang

Understanding information from visually rich documents remains a significant challenge for traditional Retrieval-Augmented Generation (RAG) methods. Existing benchmarks predominantly focus on image-based question answering (QA), overlooking…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Qiuchen Wang , Ruixue Ding , Zehui Chen , Weiqi Wu , Shihang Wang , Pengjun Xie , Feng Zhao

Large language models (LLMs) are probabilistic in nature and perform more reliably when augmented with external information. As complex queries often require multi-step reasoning over the retrieved information, with no clear or…

信息检索 · 计算机科学 2026-04-10 Roxana Petcu , Evangelos Kanoulas , Maarten de Rijke

Deep research systems, agentic AI that solve complex, multi-step tasks by coordinating reasoning, search across the open web and user files, and tool use, are moving toward hierarchical deployments with a Planner, Coordinator, and…

人工智能 · 计算机科学 2025-11-06 Wenjun Li , Zhi Chen , Jingru Lin , Hannan Cao , Wei Han , Sheng Liang , Zhi Zhang , Kuicai Dong , Dexun Li , Chen Zhang , Yong Liu

Large Reasoning Models (LRMs) have demonstrated a latent capacity for complex reasoning by spontaneously exhibiting cognitive behaviors such as step-by-step reasoning, reflection, and backtracking, commonly referred to as "Aha Moments".…

人工智能 · 计算机科学 2025-08-07 Rui Ha , Chaozhuo Li , Rui Pu , Sen Su

Humans understand long and complex texts by relying on a holistic semantic representation of the content. This global view helps organize prior knowledge, interpret new information, and integrate evidence dispersed across a document, as…

计算与语言 · 计算机科学 2026-05-29 Yuqing Li , Jiangnan Li , Zheng Lin , Ziyan Zhou , Junjie Wu , Weiping Wang , Jie Zhou , Mo Yu