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To fluently collaborate with people, robots need the ability to recognize human activities accurately. Although modern robots are equipped with various sensors, robust human activity recognition (HAR) still remains a challenging task for…

机器人学 · 计算机科学 2020-08-17 Md Mofijul Islam , Tariq Iqbal

Mobile apps that use location data are pervasive, spanning domains such as transportation, urban planning and healthcare. Important use cases for location data rely on statistical queries, e.g., identifying hotspots where users work and…

数据库 · 计算机科学 2021-07-30 Sina Shaham , Gabriel Ghinita , Ritesh Ahuja , John Krumm , Cyrus Shahabi

Detecting dynamic patterns of task-specific responses shared across heterogeneous datasets is an essential and challenging problem in many scientific applications in medical science and neuroscience. In our motivating example of rodent…

神经元与认知 · 定量生物学 2024-07-02 Yubai Yuan , Babak Shahbaba , Norbert Fortin , Keiland Cooper , Qing Nie , Annie Qu

Activity recognition using built-in sensors in smart and wearable devices provides great opportunities to understand and detect human behavior in the wild and gives a more holistic view of individuals' health and well being. Numerous…

信号处理 · 电气工程与系统科学 2020-11-16 Mehrdad Fazli , Kamran Kowsari , Erfaneh Gharavi , Laura Barnes , Afsaneh Doryab

The burgeoning availability of sensing technology and location-based data is driving the expansion of analysis of human mobility networks in science and engineering research, as well as in epidemic forecasting and mitigation, urban…

社会与信息网络 · 计算机科学 2024-05-02 Chia-Wei Hsu , Chenyue Liu , Kiet Minh Nguyen , Yu-Heng Chien , Ali Mostafavi

Endowing the robotic systems with cognitive capabilities for recognizing daily activities of humans is an important challenge, which requires sophisticated and novel approaches. Most of the proposed approaches explore pattern recognition…

机器人学 · 计算机科学 2018-10-02 Hazem Abdelkawy , Naouel Ayari , Abdelghani Chibani , Yacine Amirat , Ferhat Attal

Predicting the motion of multiple traffic participants has always been one of the most challenging tasks in autonomous driving. The recently proposed occupancy flow field prediction method has shown to be a more effective and scalable…

系统与控制 · 电气工程与系统科学 2024-07-02 Zhan Chen , Chen Tang , Lu Xiong

The multi-modality and stochastic characteristics of human behavior make motion prediction a highly challenging task, which is critical for autonomous driving. While deep learning approaches have demonstrated their great potential in this…

计算机视觉与模式识别 · 计算机科学 2024-03-04 Xiaqiang Tang , Weigao Sun , Siyuan Hu , Yiyang Sun , Yafeng Guo

Federated learning enables distributed training of machine learning (ML) models across multiple devices in a privacy-preserving manner. Hierarchical federated learning (HFL) is further proposed to meet the requirements of both latency and…

机器学习 · 计算机科学 2023-06-21 Tan Chen , Jintao Yan , Yuxuan Sun , Sheng Zhou , Deniz Gunduz , Zhisheng Niu

Small object detection is challenging because small objects do not contain detailed information and may even disappear in the deep network. Usually, feeding high-resolution images into a network can alleviate this issue. However, simply…

计算机视觉与模式识别 · 计算机科学 2020-06-16 Ziming Liu , Guangyu Gao , Lin Sun , Zhiyuan Fang

Social networks are considered to be heterogeneous graph neural networks (HGNNs) with deep learning technological advances. HGNNs, compared to homogeneous data, absorb various aspects of information about individuals in the training stage.…

机器学习 · 计算机科学 2022-10-11 Yuecen Wei , Xingcheng Fu , Qingyun Sun , Hao Peng , Jia Wu , Jinyan Wang , Xianxian Li

Personal mobility data from mobile phones and other sensors are increasingly used to inform policymaking during pandemics, natural disasters, and other humanitarian crises. However, even aggregated mobility traces can reveal private…

密码学与安全 · 计算机科学 2024-11-25 Nitin Kohli , Emily Aiken , Joshua Blumenstock

With increasing concerns over privacy in healthcare, especially for sensitive medical data, this research introduces a federated learning framework that combines local differential privacy and secure aggregation using Secure Multi-Party…

机器学习 · 计算机科学 2024-12-03 Mohamad Haj Fares , Ahmed Mohamed Saad Emam Saad

Heterogeneous big data poses many challenges in machine learning. Its enormous scale, high dimensionality, and inherent uncertainty make almost every aspect of machine learning difficult, from providing enough processing power to…

机器学习 · 计算机科学 2022-09-20 Leijie Zhang , Ye Shi , Yu-Cheng Chang , Chin-Teng Lin

Construction of neural network architectures suitable for learning from both continuous and discrete tabular data is a challenging research endeavor. Contemporary high-dimensional tabular data sets are often characterized by a relatively…

机器学习 · 计算机科学 2025-02-14 Boshko Koloski , Nada Lavrač , Blaž Škrlj

Electronic Health Records (EHRs) are commonly used by the machine learning community for research on problems specifically related to health care and medicine. EHRs have the advantages that they can be easily distributed and contain many…

机器学习 · 计算机科学 2020-06-08 Kieran Chin-Cheong , Thomas Sutter , Julia E. Vogt

High-resolution representations are essential for position-sensitive vision problems, such as human pose estimation, semantic segmentation, and object detection. Existing state-of-the-art frameworks first encode the input image as a…

计算机视觉与模式识别 · 计算机科学 2020-03-16 Jingdong Wang , Ke Sun , Tianheng Cheng , Borui Jiang , Chaorui Deng , Yang Zhao , Dong Liu , Yadong Mu , Mingkui Tan , Xinggang Wang , Wenyu Liu , Bin Xiao

Sharing sensitive data is vital in enabling many modern data analysis and machine learning tasks. However, current methods for data release are insufficiently accurate or granular to provide meaningful utility, and they carry a high risk of…

数据库 · 计算机科学 2021-08-25 Teddy Cunningham , Graham Cormode , Hakan Ferhatosmanoglu

Accurate and robust trajectory prediction of neighboring agents is critical for autonomous vehicles traversing in complex scenes. Most methods proposed in recent years are deep learning-based due to their strength in encoding complex…

机器人学 · 计算机科学 2023-03-27 Yujun Jiao , Mingze Miao , Zhishuai Yin , Chunyuan Lei , Xu Zhu , Linzhen Nie , Bo Tao

Several techniques have been proposed to address the problem of recognizing activities of daily living from signals. Deep learning techniques applied to inertial signals have proven to be effective, achieving significant classification…

信号处理 · 电气工程与系统科学 2022-01-21 Hamza Amrani , Daniela Micucci , Marco Mobilio , Paolo Napoletano