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Real-time AI-driven trend analytics for smart city digital services using streaming data [PDF]

Frontiers in Big Data
Real-time data analysis plays an important role in the operation of digital urban systems, where the behavior of residents and the load on services can change over short periods of time.
Zhuldyz Kalpeyeva, Abdul Razaque, Raissa Uskenbayeva, Aliya Beishenaly, Venera Elle, Aizhan Kassymova   +5 more
doaj   +2 more sources

Automatic Placement of Visual Sensors in a Smart Space to Ensure Required PPM Level in Specified Regions of Interest

Sensors, 2022
This work is devoted to a cost-effective method for the automatic placement of visual sensors within a smart room to ensure the requirements for its design.
Iaroslav Khutornoi, Aleksandr Kobyzhev, Irina Vatamaniuk   +2 more
doaj   +1 more source

Design and Implementation of a Hardware and Software System for Visual Assessment of Bituminous Coating Quality

Sensors, 2023
Typically, the quality of the bitumen adhesion in asphalt mixtures is assessed manually by a group of experts who assign subjective ratings to the thickness of the residual bitumen coating on the gravel samples.
Dmitrii Kamianskii, Alexander Boldyrev, Nikita Vezdenetsky, Irina Vatamaniuk, Marina Bolsunovskaya   +4 more
doaj   +1 more source

Semi-supervised segmentation of metastasis lesions in bone scan images

Frontiers in Molecular Biosciences, 2022
To develop a deep image segmentation model that automatically identifies and delineates lesions of skeletal metastasis in bone scan images, facilitating clinical diagnosis of lung cancer–caused bone metastasis by nuclear medicine physicians.
Qiang Lin, Qiang Lin, Qiang Lin, Runxia Gao, Runxia Gao, Mingyang Luo, Mingyang Luo, Haijun Wang, Yongchun Cao, Yongchun Cao, Yongchun Cao, Zhengxing Man, Zhengxing Man, Zhengxing Man, Rong Wang   +14 more
doaj   +1 more source

Incident Retrieval and Recognition in Video Stream Using Wi-Fi Signal

IEEE Access, 2021
Retrieving incidents from video stream plays an important role in many computer vision applications. However, most video surveillance system can neither recognize incidents nor support content-based retrieval before the video stream is saved into files ...
Yusheng Hao, Weilan Wang, Qiang Lin
doaj   +1 more source

A Robust Variable Selection Method for Sparse Online Regression via the Elastic Net Penalty

Mathematics, 2022
Variable selection has been a hot topic, with various popular methods including lasso, SCAD, and elastic net. These penalized regression algorithms remain sensitive to noisy data.
Wentao Wang, Jiaxuan Liang, Rong Liu, Yunquan Song, Min Zhang   +4 more
doaj   +1 more source

FlexSketch: Estimation of Probability Density for Stationary and Non-Stationary Data Streams

Sensors, 2021
Efficient and accurate estimation of the probability distribution of a data stream is an important problem in many sensor systems. It is especially challenging when the data stream is non-stationary, i.e., its probability distribution changes over time ...
Namuk Park, Songkuk Kim
doaj   +1 more source

Real-Time UAV Trash Monitoring System

Applied Sciences, 2022
This study proposes a marine trash detection system based on unmanned aerial vehicles (UAVs) and aims to replace manpower with UAVs to detect marine trash efficiently and provide information to government agencies regarding real-time trash pollution ...
Yu-Hsien Liao, Jih-Gau Juang
doaj   +1 more source

Classical Solutions to the Initial-Boundary Value Problems for Nonautonomous Fractional Diffusion Equations

Complexity, 2020
In this paper, we investigate a class of nonautonomous fractional diffusion equations (NFDEs). Firstly, under the condition of weighted Hölder continuity, the existence and two estimates of classical solutions are obtained by virtue of the properties of ...
Jia Mu, Yang Liu, Huanhuan Zhang
doaj   +1 more source

Existence and Stability of Square-Mean S-Asymptotically Periodic Solutions to a Fractional Stochastic Diffusion Equation with Fractional Brownian Motion

Complexity, 2020
In this paper, a generalized Gronwall inequality is demonstrated, playing an important role in the study of fractional differential equations. In addition, with the fixed-point theorem and the properties of Mittag–Leffler functions, some results of the ...
Jia Mu, Jiecuo Nan, Yong Zhou
doaj   +1 more source