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A major challenge in developing robust and generalizable Human Activity Recognition (HAR) systems for smart homes is the lack of large and diverse labeled datasets. Variations in home layouts, sensor configurations, and individual behaviors…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Zikang Leng , Megha Thukral , Yaqi Liu , Hrudhai Rajasekhar , Shruthi K. Hiremath , Jiaman He , Thomas Plötz

In the digitization of energy systems, sensors and smart meters are increasingly being used to monitor production, operation and demand. Detection of anomalies based on smart meter data is crucial to identify potential risks and unusual…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Wenjing Dai , Xiufeng Liu , Alfred Heller , Per Sieverts Nielsen

Anomaly detection in database management systems (DBMSs) is difficult because of increasing number of statistics (stat) and event metrics in big data system. In this paper, I propose an automatic DBMS diagnosis system that detects anomaly…

Machine Learning · Statistics 2018-01-26 Doyup Lee

Complex activity recognition plays an important role in elderly care assistance. However, the reasoning ability of edge devices is constrained by the classic machine learning model capacity. In this paper, we present a non-invasive ambient…

Human-Computer Interaction · Computer Science 2024-10-10 Yuan Sun , Jorge Ortiz

Home absence detection is an emerging field on smart home installations. Identifying whether or not the residents of the house are present, is important in numerous scenarios. Possible scenarios include but are not limited to: elderly…

Machine Learning · Computer Science 2022-08-23 Athanasios Lentzas , Dimitris Vrakas

To train deep learning models for vision-based action recognition of elders' daily activities, we need large-scale activity datasets acquired under various daily living environments and conditions. However, most public datasets used in…

Computer Vision and Pattern Recognition · Computer Science 2020-11-22 Hochul Hwang , Cheongjae Jang , Geonwoo Park , Junghyun Cho , Ig-Jae Kim

Anomaly detection is concerned with a wide range of applications such as fault detection, system monitoring, and event detection. Identifying anomalies from metering data obtained from smart metering system is a critical task to enhance…

Machine Learning · Computer Science 2021-12-08 Sangkeum Lee , Hojun Jin , Sarvar Hussain Nengroo , Yoonmee Doh , Chungho Lee , Taewook Heo , Dongsoo Har

Anomaly detection of time series, especially multivariate time series(time series with multiple sensors), has been focused on for several years. Though existing method has achieved great progress, there are several challenging problems to…

Machine Learning · Computer Science 2022-11-29 Weixuan Xiong , Xiaochen Sun

Anomaly detection systems need to consider a lot of information when scanning for anomalies. One example is the context of the process in which an anomaly might occur, because anomalies for one process might not be anomalies for a different…

Machine Learning · Computer Science 2021-01-18 Sebastian Eresheim , Lukas Daniel Klausner , Patrick Kochberger

Automated detection of abnormalities in data has been studied in research area in recent years because of its diverse applications in practice including video surveillance, industrial damage detection and network intrusion detection.…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Hung Vu , Dinh Phung , Tu Dinh Nguyen , Anthony Trevors , Svetha Venkatesh

The increasing population of elderly people is associated with the need to meet their increasing requirements and to provide solutions that can improve their quality of life in a smart home. In addition to fear and anxiety towards…

Human-Computer Interaction · Computer Science 2025-07-15 Nirmalya Thakur , Chia Y. Han

Modern buildings are densely equipped with smart energy meters, which periodically generate a massive amount of time-series data yielding few million data points every day. This data can be leveraged to discover the underlying loads, infer…

Machine Learning · Computer Science 2022-04-01 Manoj Gulati , Pandarasamy Arjunan

Smart homes, powered by the Internet of Things, offer great convenience but also pose security concerns due to abnormal behaviors, such as improper operations of users and potential attacks from malicious attackers. Several behavior…

Cryptography and Security · Computer Science 2024-06-19 Jingyu Xiao , Zhiyao Xu , Qingsong Zou , Qing Li , Dan Zhao , Dong Fang , Ruoyu Li , Wenxin Tang , Kang Li , Xudong Zuo , Penghui Hu , Yong Jiang , Zixuan Weng , Michael R. Lyv

In this short paper we consider the problem of monitoring physical activity in the smart house. The authors suggested a simple device that allows medical staff and relatives to monitor the activity for older adults living alone. This sensor…

Computers and Society · Computer Science 2015-02-25 Manfred Sneps-Sneppe , Dmitry Namiot

Anomalies refer to the departure of systems and devices from their normal behaviour in standard operating conditions. An anomaly in an industrial device can indicate an upcoming failure, often in the temporal direction. In this paper, we…

Machine Learning · Computer Science 2024-02-13 Snehanshu Saha , Jyotirmoy Sarkar , Soma Dhavala , Santonu Sarkar , Preyank Mota

The inclusion of Internet of Things (IoT) devices is growing rapidly in all application domains. Smart Farming supports devices connected, and with the support of Internet, cloud or edge computing infrastructure provide remote control of…

Cryptography and Security · Computer Science 2021-11-02 Mary Adkisson , Jeffrey C Kimmel , Maanak Gupta , Mahmoud Abdelsalam

This work introduces a live anomaly detection system for high frequency and high-dimensional data collected at regional scale such as Origin Destination Matrices of mobile positioning data. To take into account different granularity in time…

Applications · Statistics 2022-05-25 Stefano Maria Iacus , Francesco Sermi , Spyridon Spyratos , Dario Tarchi , Michele Vespe

Low-count time series describe sparse or intermittent events, which are prevalent in large-scale online platforms that capture and monitor diverse data types. Several distinct challenges surface when modelling low-count time series,…

Machine Learning · Computer Science 2023-11-21 Philipp Renz , Kurt Cutajar , Niall Twomey , Gavin K. C. Cheung , Hanting Xie

With an increasing number of elders living alone, care-giving from a distance becomes a compelling need, particularly for safety. Real-time monitoring and action recognition are essential to raise an alert timely when abnormal behaviors or…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Han Sun , Yu Chen

Many systems in our world age, degrade or otherwise move slowly but steadily in a certain direction. When monitoring such systems by means of sensors, one often assumes that some form of `age' is latently present in the data, but perhaps…

Machine Learning · Computer Science 2025-10-23 Guus Toussaint , Arno Knobbe