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As a decisive part in the success of Mobility-as-a-Service (MaaS), spatio-temporal predictive modeling for crowd movements is a challenging task particularly considering scenarios where societal events drive mobility behavior deviated from…

机器学习 · 计算机科学 2021-12-17 Zhaonan Wang , Renhe Jiang , Hao Xue , Flora D. Salim , Xuan Song , Ryosuke Shibasaki

Leveraging sensing modalities across diverse spatial and temporal resolutions can improve performance of robotic manipulation tasks. Multi-spatial resolution sensing provides hierarchical information captured at different spatial scales and…

机器人学 · 计算机科学 2024-01-29 Saumya Saxena , Mohit Sharma , Oliver Kroemer

Spatio-temporal prediction aims to forecast and gain insights into the ever-changing dynamics of urban environments across both time and space. Its purpose is to anticipate future patterns, trends, and events in diverse facets of urban…

计算与语言 · 计算机科学 2024-05-21 Zhonghang Li , Lianghao Xia , Jiabin Tang , Yong Xu , Lei Shi , Long Xia , Dawei Yin , Chao Huang

An effective online recommendation system should jointly capture users' long-term and short-term preferences in both users' internal behaviors (from the target recommendation task) and external behaviors (from other tasks). However, it is…

信息检索 · 计算机科学 2021-11-29 Ruobing Xie , Yalong Wang , Rui Wang , Yuanfu Lu , Yuanhang Zou , Feng Xia , Leyu Lin

Phase recognition in surgical videos is crucial for enhancing computer-aided surgical systems as it enables automated understanding of sequential procedural stages. Existing methods often rely on fixed temporal windows for video analysis to…

计算机视觉与模式识别 · 计算机科学 2024-07-25 Alejandra Pérez , Santiago Rodríguez , Nicolás Ayobi , Nicolás Aparicio , Eugénie Dessevres , Pablo Arbeláez

Urban spatio-temporal prediction is crucial for informed decision-making, such as traffic management, resource optimization, and emergence response. Despite remarkable breakthroughs in pretrained natural language models that enable one…

机器学习 · 计算机科学 2024-07-02 Yuan Yuan , Jingtao Ding , Jie Feng , Depeng Jin , Yong Li

In an intelligent transportation system, the key problem of traffic forecasting is how to extract periodic temporal dependencies and complex spatial correlations. Current state-of-the-art methods for predicting traffic flow are based on…

机器学习 · 计算机科学 2022-03-01 Zichuan Liu , Rui Zhang , Chen Wang , Zhu Xiao , Hongbo Jiang

Traffic prediction is a typical spatio-temporal data mining task and has great significance to the public transportation system. Considering the demand for its grand application, we recognize key factors for an ideal spatio-temporal…

机器学习 · 计算机科学 2023-09-26 Zijian Zhang , Ze Huang , Zhiwei Hu , Xiangyu Zhao , Wanyu Wang , Zitao Liu , Junbo Zhang , S. Joe Qin , Hongwei Zhao

With the rise of social media and Location-Based Social Networks (LBSN), check-in data across platforms has become crucial for User Identity Linkage (UIL). These data not only reveal users' spatio-temporal information but also provide…

社会与信息网络 · 计算机科学 2025-04-04 Ziang Yan , Xingyu Zhao , Hanqing Ma , Wei Chen , Jianpeng Qi , Yanwei Yu , Junyu Dong

Although significant achievements have been achieved by recurrent neural network (RNN) based video prediction methods, their performance in datasets with high resolutions is still far from satisfactory because of the information loss…

计算机视觉与模式识别 · 计算机科学 2022-06-10 Zheng Chang , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Building spatiotemporal activity models for people's activities in urban spaces is important for understanding the ever-increasing complexity of urban dynamics. With the emergence of Geo-Tagged Social Media (GTSM) records, previous studies…

机器学习 · 计算机科学 2019-10-24 Amila Silva , Shanika Karunasekera , Christopher Leckie , Ling Luo

Multimodal Large Language Models (MLLMs) face significant computational overhead when processing long videos due to the massive number of visual tokens required. To improve efficiency, existing methods primarily reduce redundancy by pruning…

人工智能 · 计算机科学 2026-05-22 Bingjun Luo , Tony Wang , Chaoqi Chen , Xinpeng Ding

Modern cities are increasingly reliant on data-driven insights to support decision making in areas such as transportation, public safety and environmental impact. However, city-level data often exists in heterogeneous formats, collected…

机器学习 · 计算机科学 2025-12-15 Takuya Kurihana , Xiaojian Zhang , Wing Yee Au , Hon Yung Wong

As the development of cities, traffic congestion becomes an increasingly pressing issue, and traffic prediction is a classic method to relieve that issue. Traffic prediction is one specific application of spatio-temporal prediction…

机器学习 · 计算机科学 2023-11-01 Maoxiang Sun , Weilong Ding , Tianpu Zhang , Zijian Liu , Mengda Xing

Recent advances in learning-based model predictive control (MPC) have leveraged neural networks for online model learning, achieving strong performance when nonstationary system dynamics deviate from nominal models. However, existing…

机器学习 · 计算机科学 2026-05-26 Zeyu Shen , Zhuoyuan Wang , Laixi Shi

Multimodal time series (MTS) anomaly detection is crucial for maintaining the safety and stability of working devices (e.g., water treatment system and spacecraft), whose data are characterized by multivariate time series with diverse…

机器学习 · 计算机科学 2023-10-18 Chaoyue Ding , Shiliang Sun , Jing Zhao

Predictive learning uses a known state to generate a future state over a period of time. It is a challenging task to predict spatiotemporal sequence because the spatiotemporal sequence varies both in time and space. The mainstream method is…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Haoyu Pan , Hao Wu , Tan Yang

As various types of crime continue to threaten public safety and economic development, predicting the occurrence of multiple types of crimes becomes increasingly vital for effective prevention measures. Although extensive efforts have been…

机器学习 · 计算机科学 2024-09-25 Ziyang Wu , Fan Liu , Jindong Han , Yuxuan Liang , Hao Liu

Cities across the United States are implementing information communication technologies in an effort to improve government services. One such innovation in e-government is the creation of 311 systems, offering a centralized platform where…

计算机与社会 · 计算机科学 2017-10-09 Constantine Kontokosta , Boyeong Hong , Kristi Korsberg

Multi-view subspace learning (MSL) aims to find a low-dimensional subspace of the data obtained from multiple views. Different from single view case, MSL should take both common and specific knowledge among different views into…

机器学习 · 计算机科学 2018-11-08 Hongwei Yong , Deyu Meng , Jinxing Li , Wangmeng Zuo , Lei Zhang