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This study presents an innovative approach to urban mobility simulation by integrating a Large Language Model (LLM) with Agent-Based Modeling (ABM). Unlike traditional rule-based ABM, the proposed framework leverages LLM to enhance agent…

多智能体系统 · 计算机科学 2025-07-04 Yu-Lun Song , Chung-En Tsern , Che-Cheng Wu , Yu-Ming Chang , Syuan-Bo Huang , Wei-Chu Chen , Michael Chia-Liang Lin , Yu-Ta Lin

Graph-based Retrieval-augmented generation (RAG) has become a widely studied approach for improving the reasoning, accuracy, and factuality of Large Language Models (LLMs). However, many existing graph-based RAG systems overlook the high…

人工智能 · 计算机科学 2025-11-11 Qiao Xiao , Hong Ting Tsang , Jiaxin Bai

Understanding human motion behaviour is a critical task for several possible applications like self-driving cars or social robots, and in general for all those settings where an autonomous agent has to navigate inside a human-centric…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Alessio Monti , Alessia Bertugli , Simone Calderara , Rita Cucchiara

LLM routing has achieved promising results in integrating the strengths of diverse models while balancing efficiency and performance. However, to support more realistic and challenging applications, routing must extend into agentic LLM…

计算与语言 · 计算机科学 2026-04-28 Tao Feng , Haozhen Zhang , Zijie Lei , Peixuan Han , Jiaxuan You

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

The difficulty and expense of obtaining large-scale human responses make Large Language Models (LLMs) an attractive alternative and a promising proxy for human behavior. However, prior work shows that LLMs often produce homogeneous outputs…

人工智能 · 计算机科学 2025-10-09 Manh Hung Nguyen , Sebastian Tschiatschek , Adish Singla

The advent of Large Language Models (LLMs) has revolutionized natural language processing. However, these models face challenges in retrieving precise information from vast datasets. Retrieval-Augmented Generation (RAG) was developed to…

信息检索 · 计算机科学 2025-03-04 Yuxin Yang , Haoyang Wu , Tao Wang , Jia Yang , Hao Ma , Guojie Luo

Recommendation systems often suffer from data sparsity caused by limited user-item interactions, which degrade their performance and amplify popularity bias in real-world scenarios. This paper proposes a novel data augmentation framework…

信息检索 · 计算机科学 2026-04-22 Minh-Anh Nguyen , Bao Nguyen , Ha Lan N. T. , Tuan Anh Hoang , Duc-Trong Le , Dung D. Le

Graph-based Retrieval-Augmented Generation (RAG) has shown great capability in enhancing Large Language Model (LLM)'s answer with an external knowledge base. Compared to traditional RAG, it introduces a graph as an intermediate…

信息检索 · 计算机科学 2025-06-18 Ke Wang , Bo Pan , Yingchaojie Feng , Yuwei Wu , Jieyi Chen , Minfeng Zhu , Wei Chen

Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs) for solving question-answer (QA) tasks. The state-of-the-art RAG approaches often use the graph data as the…

信息检索 · 计算机科学 2026-05-12 Shu Wang , Yixiang Fang , Yingli Zhou , Xilin Liu , Yuchi Ma

Recent advancements in retrieval-augmented generation (RAG) have enhanced large language models in question answering by integrating external knowledge. However, challenges persist in achieving global understanding and aligning responses…

计算与语言 · 计算机科学 2025-06-24 Quanwei Tang , Sophia Yat Mei Lee , Junshuang Wu , Dong Zhang , Shoushan Li , Erik Cambria , Guodong Zhou

Human mobility simulation plays a crucial role in various real-world applications. Recently, to address the limitations of traditional data-driven approaches, researchers have explored leveraging the commonsense knowledge and reasoning…

计算与语言 · 计算机科学 2025-06-17 Yuwei Du , Jie Feng , Jian Yuan , Yong Li

Graph-based Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs), improving their factual accuracy, adaptability, interpretability, and trustworthiness. A number of…

Retrieval-Augmented Generation (RAG) utilizes external knowledge to augment Large Language Models' (LLMs) reliability. For flexibility, agentic RAG employs autonomous, multi-round retrieval and reasoning to resolve queries. Although recent…

信息检索 · 计算机科学 2025-11-10 Chao Zhang , Yuhao Wang , Derong Xu , Haoxin Zhang , Yuanjie Lyu , Yuhao Chen , Shuochen Liu , Tong Xu , Xiangyu Zhao , Yan Gao , Yao Hu , Enhong Chen

Understanding and modeling human mobility is central to challenges in transport planning, sustainable urban design, and public health. Despite decades of effort, simulating individual mobility remains challenging because of its complex,…

物理与社会 · 物理学 2026-02-10 Ye Hong , Yatao Zhang , Konrad Schindler , Martin Raubal

Graph-based retrieval-augmented generation (RAG) enriches large language models (LLMs) with external knowledge for long-context understanding and multi-hop reasoning, but existing methods face a granularity dilemma: fine-grained…

计算与语言 · 计算机科学 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Retrieval Augmented Generation (RAG) systems have seen huge popularity in augmenting Large-Language Model (LLM) outputs with domain specific and time sensitive data. Very recently a shift is happening from simple RAG setups that query a…

信息检索 · 计算机科学 2024-03-05 Tristan Kenneweg , Philip Kenneweg , Barbara Hammer

Graph-based collaborative filtering methods have prevailing performance for recommender systems since they can capture high-order information between users and items, in which the graphs are constructed from the observed user-item…

信息检索 · 计算机科学 2024-01-24 Hongjian Gu , Yaochen Hu , Yingxue Zhang

Retrieval-Augmented Generation (RAG) has become a robust framework for enhancing Large Language Models (LLMs) with external knowledge. Recent advances in RAG have investigated graph based retrieval for intricate reasoning; however, the…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Tejas Sarnaik , Manan Shah , Ravi Hegde

Owing to recent advancements, Large Language Models (LLMs) can now be deployed as agents for increasingly complex decision-making applications in areas including robotics, gaming, and API integration. However, reflecting past experiences in…