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In wearable sensing applications, data is inevitable to be irregularly sampled or partially missing, which pose challenges for any downstream application. An unique aspect of wearable data is that it is time-series data and each channel can…

Signal Processing · Electrical Eng. & Systems 2022-10-03 Zepeng Huo , Taowei Ji , Yifei Liang , Shuai Huang , Zhangyang Wang , Xiaoning Qian , Bobak Mortazavi

Mechanical devices such as engines, vehicles, aircrafts, etc., are typically instrumented with numerous sensors to capture the behavior and health of the machine. However, there are often external factors or variables which are not captured…

Artificial Intelligence · Computer Science 2016-07-12 Pankaj Malhotra , Anusha Ramakrishnan , Gaurangi Anand , Lovekesh Vig , Puneet Agarwal , Gautam Shroff

Simulation is increasingly being used for generating large labelled datasets in many machine learning problems. Recent methods have focused on adjusting simulator parameters with the goal of maximising accuracy on a validation task, usually…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Harkirat Singh Behl , Atılım Güneş Baydin , Ran Gal , Philip H. S. Torr , Vibhav Vineet

Around the globe the number of older people in relation to the rest is constantly growing. As a result, medical and care facilities cannot handle the growing number of patients. Therefore, elderly in-home assistance gets more attention an…

Software Engineering · Computer Science 2013-03-05 Thomas J. Lampoltshammer , Thomas Nowotny , Stefan Plank

Performing anomaly detection in hybrid systems is a challenging task since it requires analysis of timing behavior and mutual dependencies of both discrete and continuous signals. Typically, it requires modeling system behavior, which is…

Machine Learning · Computer Science 2020-10-30 Nemanja Hranisavljevic , Oliver Niggemann , Alexander Maier

Ever growing volume and velocity of data coupled with decreasing attention span of end users underscore the critical need for real-time analytics. In this regard, anomaly detection plays a key role as an application as well as a means to…

Machine Learning · Statistics 2017-10-16 Dhruv Choudhary , Arun Kejariwal , Francois Orsini

Anomaly detection is an important task in network management. However, deploying intelligent alert systems in real-world large-scale networking systems is challenging when we take into account (i) scalability, (ii) data heterogeneity, and…

Networking and Internet Architecture · Computer Science 2023-06-16 Yao Zhao , Sophine Zhang , Zhiyuan Yao

Power-generating assets (e.g., jet engines, gas turbines) are often instrumented with tens to hundreds of sensors for monitoring physical and performance degradation. Anomaly detection algorithms highlight deviations from predetermined…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-01-27 Paras Jain , Chirag Tailor , Sam Ford , Liexiao Ding , Michael Phillips , Fang Liu , Nagi Gebraeel , Duen Horng Chau

In this paper, we study stateless and stateful physics-based anomaly detection scenarios via distributed estimation over sensor networks. In the stateful case, the detector keeps track of the sensor residuals (i.e., the difference of…

Systems and Control · Electrical Eng. & Systems 2022-04-05 Mohammadreza Doostmohammadian , Themistoklis Charalambous

A classical approach to abnormal activity detection is to learn a representation for normal activities from the training data and then use this learned representation to detect abnormal activities while testing. Typically, the methods based…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Royston Rodrigues , Neha Bhargava , Rajbabu Velmurugan , Subhasis Chaudhuri

Recent advances in Internet of Things (IoT) technologies and the reduction in the cost of sensors have encouraged the development of smart environments, such as smart homes. Smart homes can offer home assistance services to improve the…

Human-Computer Interaction · Computer Science 2021-11-09 Damien Bouchabou , Sao Mai Nguyen , Christophe Lohr , Benoit Leduc , Ioannis Kanellos

Despite the prevalence of reconstruction-based deep learning methods, time series anomaly detection remains a tremendous challenge. Existing approaches often struggle with limited temporal contexts, insufficient representation of normal…

Machine Learning · Computer Science 2025-07-16 Zhijie Zhong , Zhiwen Yu , Xing Xi , Yue Xu , Wenming Cao , Yiyuan Yang , Kaixiang Yang , Jane You

Object slip perception is essential for mobile manipulation robots to perform manipulation tasks reliably in the dynamic real-world. Traditional approaches to robot arms' slip perception use tactile or vision sensors. However, mobile robots…

Robotics · Computer Science 2024-03-07 Youngjae Yoo , Chung-Yeon Lee , Byoung-Tak Zhang

The population of the elderly people has kept increasing rapidly over the world in the past decades. Solutions that are able to effectively support the elderly people to live independently at their home are thus urgently needed. Ambient…

Human-Computer Interaction · Computer Science 2021-04-15 Hong Sun , Vincenzo De Florio

Remote monitoring of motor functions is a powerful approach for health assessment, especially among the elderly population or among subjects affected by pathologies that negatively impact their walking capabilities. This is further…

Signal Processing · Electrical Eng. & Systems 2022-05-18 Antonio Bevilacqua , Lisa Alcock , Brian Caulfield , Eran Gazit , Clint Hansen , Neil Ireson , Georgiana Ifrim

In this paper, we present work in progress on activity recognition and prediction in real homes using either binary sensor data or depth video data. We present our field trial and set-up for collecting and storing the data, our methods, and…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Flavia Dias Casagrande , Evi Zouganeli

We propose a model of the situational context of a person and show how it can be used to organize and, consequently, reason about massive streams of sensor data and annotations, as they can be collected from mobile devices, e.g.…

Human-Computer Interaction · Computer Science 2022-06-22 Fausto Giunchiglia , Xiaoyue Li , Matteo Busso , Marcelo Rodas-Britez

In this chapter we consider a cell phone network as a set of automatically deployed sensors that records movement and interaction patterns of the population. We discuss methods for detecting anomalies in the streaming data produced by the…

Data Analysis, Statistics and Probability · Physics 2013-03-27 Alec Pawling , Ping Yan , Julián Candia , Tim Schoenharl , Greg Madey

We introduce $\textbf{SimuHome}$, a high-fidelity smart home simulator and a benchmark of 600 episodes for LLM-based smart home agents. Existing smart home benchmarks treat the home as a static system, neither simulating how device…

Computation and Language · Computer Science 2026-03-03 Gyuhyeon Seo , Jungwoo Yang , Junseong Pyo , Nalim Kim , Jonggeun Lee , Yohan Jo

Anomalies refer to data points or events that deviate from normal and homogeneous events, which can include fraudulent activities, network infiltrations, equipment malfunctions, process changes, or other significant but infrequent events.…

Machine Learning · Computer Science 2023-03-20 Ahmed Shoyeb Raihan , Imtiaz Ahmed