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The traditional frequent pattern mining algorithms generate an exponentially large number of patterns of which a substantial proportion are not much significant for many data analysis endeavors. Discovery of a small number of personalized…

机器学习 · 计算机科学 2016-07-21 Mansurul Bhuiyan , Mohammad Al Hasan

In this letter, we propose MAROAM, a millimeter wave radar-based SLAM framework, which employs a two-step feature selection process to build the global consistent map. Specifically, we first extract feature points from raw data based on…

机器人学 · 计算机科学 2022-10-26 Dequan Wang , Yifan Duan , Xiaoran Fan , Chengzhen Meng , Jianmin Ji , Yanyong Zhang

Accurate inference of fine-grained traffic flow from coarse-grained one is an emerging yet crucial problem, which can help greatly reduce the number of the required traffic monitoring sensors for cost savings. In this work, we notice that…

机器学习 · 计算机科学 2023-10-27 Lingbo Liu , Mengmeng Liu , Guanbin Li , Ziyi Wu , Junfan Lin , Liang Lin

We demonstrate the Patterns of Life Simulation to create realistic simulations of human mobility in a city. This simulation has recently been used to generate massive amounts of trajectory and check-in data. Our demonstration focuses on…

多智能体系统 · 计算机科学 2024-10-15 Hossein Amiri , Will Kohn , Shiyang Ruan , Joon-Seok Kim , Hamdi Kavak , Andrew Crooks , Dieter Pfoser , Carola Wenk , Andreas Zufle

Spatiotemporal trajectory data is crucial for various applications. However, issues such as device malfunctions and network instability often cause sparse trajectories, leading to lost detailed movement information. Recovering the missing…

机器学习 · 计算机科学 2025-02-12 Tonglong Wei , Yan Lin , Youfang Lin , Shengnan Guo , Jilin Hu , Haitao Yuan , Gao Cong , Huaiyu Wan

Label estimation is an important component in an unsupervised person re-identification (re-ID) system. This paper focuses on cross-camera label estimation, which can be subsequently used in feature learning to learn robust re-ID models.…

计算机视觉与模式识别 · 计算机科学 2017-09-28 Mang Ye , Andy J Ma , Liang Zheng , Jiawei Li , P C Yuen

This paper describes and analyzes a reactive navigation framework for mobile robots in unknown environments. The approach does not rely on a global map and only considers the local occupancy in its robot-centered 3D grid structure. The…

机器人学 · 计算机科学 2021-08-24 Neşet Ünver Akmandor , Taşkın Padır

In real-world applications, GPS trajectories often suffer from low sampling rates, with large and irregular intervals between consecutive GPS points. This sparse characteristic presents challenges for their direct use in GPS-based systems.…

机器学习 · 计算机科学 2025-05-21 Tian Sun , Yuqi Chen , Baihua Zheng , Weiwei Sun

Networks representing social, biological, technological or other systems are often characterized by higher-order interaction involving any number of nodes. Temporal hypergraphs are given by ordered sequences of hyperedges representing sets…

物理与社会 · 物理学 2026-02-27 Jürgen Lerner , Marian-Gabriel Hâncean , Matjaz Perc

Temporal link prediction in dynamic graphs is a critical task with applications in diverse domains such as social networks, recommendation systems, and e-commerce platforms. While existing Temporal Graph Neural Networks (T-GNNs) have…

人工智能 · 计算机科学 2025-07-21 Haoyang Li , Yuming Xu , Yiming Li , Hanmo Liu , Darian Li , Chen Jason Zhang , Lei Chen , Qing Li

Multi-Camera Multi-Object Tracking (MC-MOT) utilizes information from multiple views to better handle problems with occlusion and crowded scenes. Recently, the use of graph-based approaches to solve tracking problems has become very…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Cheng-Che Cheng , Min-Xuan Qiu , Chen-Kuo Chiang , Shang-Hong Lai

Refined trajectory inference of urban rail transit is of great significance to the operation organization. In this paper, we develop a fully data-driven approach to inferring individual travel trajectories in urban rail transit systems. It…

机器学习 · 计算机科学 2025-12-18 Jie He , Yong Qin , Jianyuan Guo , Xuan Sun , Xuanchuan Zheng

Sequential recommendation requires the recommender to capture the evolving behavior characteristics from logged user behavior data for accurate recommendations. However, user behavior sequences are viewed as a script with multiple ongoing…

信息检索 · 计算机科学 2022-06-15 Zhiyu Yao , Xinyang Chen , Sinan Wang , Qinyan Dai , Yumeng Li , Tanchao Zhu , Mingsheng Long

In this paper, we propose an efficient vehicle trajectory prediction framework based on recurrent neural network. Basically, the characteristic of the vehicle's trajectory is different from that of regular moving objects since it is…

机器学习 · 计算机科学 2017-09-04 ByeoungDo Kim , Chang Mook Kang , Seung Hi Lee , Hyunmin Chae , Jaekyum Kim , Chung Choo Chung , Jun Won Choi

In video surveillance applications, person search is a challenging task consisting in detecting people and extracting features from their silhouette for re-identification (re-ID) purpose. We propose a new end-to-end model that jointly…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Angelique Loesch , Jaonary Rabarisoa , Romaric Audigier

Large-scale social simulators are essential for studying complex social patterns. Prior work explores hybrid methods to scale up simulations, combining large language models (LLM)-based agents with numerical agent-based models (ABM).…

人工智能 · 计算机科学 2026-05-11 Xuan Zhou , Yanhui Sun , Hantao Yao , Allen He , Yongdong Zhang , Wu Liu

Filaments are ubiquitous in astronomical data sets. Be it in particle simulations or observations, filaments are always tracers of a perturbation in the equilibrium of the studied system and hold essential information on its history and…

Recurrent Neural Networks (RNNs) are among the most successful machine learning models for sequence modelling, but tend to suffer from an exponential increase in the number of parameters when dealing with large multidimensional data. To…

机器学习 · 计算机科学 2021-05-12 Yao Lei Xu , Danilo P. Mandic

The sequential recommendation system has been widely studied for its promising effectiveness in capturing dynamic preferences buried in users' sequential behaviors. Despite the considerable achievements, existing methods usually focus on…

信息检索 · 计算机科学 2023-11-07 Mingjia Yin , Hao Wang , Xiang Xu , Likang Wu , Sirui Zhao , Wei Guo , Yong Liu , Ruiming Tang , Defu Lian , Enhong Chen

Public databases of large-scale topology measures (e.g.RIPE Atlas) are very popular both in the research and in the practitioners communities. They are used, at least, for understanding the state of the Internet in real time, for outage…

网络与互联网体系结构 · 计算机科学 2017-09-19 Mattia Iodice , Massimo Candela , Giuseppe Di Battista