Results 21 to 30 of about 335,380 (266)

Research Progress on Models, Algorithms, and Systems for Remote Sensing Spatial-Temporal Big Data Processing

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
With the rapid development of high-resolution earth observation systems, the data processing, algorithm design, and system development of remote sensing spatial-temporal big data (RS-STBD) have gradually become the bottleneck problems in the application ...
Yang Liu, Lanxue Dang, Shenshen Li, Kun Cai, Xianyu Zuo   +4 more
doaj   +1 more source

LD-SLAM: A Robust and Accurate GNSS-Aided Multi-Map Method for Long-Distance Visual SLAM

Remote Sensing, 2023
Continuous, robust, and precise localization is pivotal in enabling the autonomous operation of robots and aircraft in intricate environments, particularly in the absence of GNSS (global navigation satellite system) signals.
Dongdong Li, Fangbing Zhang, Jiaxiao Feng, Zhijun Wang, Jinghui Fan, Ye Li, Jing Li, Tao Yang   +7 more
doaj   +1 more source

Information Cascades Prediction With Graph Attention

Frontiers in Physics, 2021
The cascades prediction aims to predict the possible information diffusion path in the future based on cascades of the social network. Recently, the existing researches based on deep learning have achieved remarkable results, which indicates the great ...
Zhihao Chen, Zhihao Chen, Zhihao Chen, Jingjing Wei, Shaobin Liang, Shaobin Liang, Shaobin Liang, Tiecheng Cai, Tiecheng Cai, Tiecheng Cai, Xiangwen Liao, Xiangwen Liao, Xiangwen Liao, Xiangwen Liao   +13 more
doaj   +1 more source

Studies of NO₂ Gas-Sensing Characteristics of a Novel Room-Temperature Surface-Photovoltage Gas Sensor Device

Sensors, 2020
In this work the characteristics of a novel type of room temperature NO2 gas sensor device based on the surface photovoltage effect are described. It was shown that for our SPV gas sensor device, using porous sputtered ZnO nanostructured thin films as ...
Monika Kwoka, Jacek Szuber
doaj   +1 more source

Rheotaxially Grown and Vacuum Oxidized SnO_x Nanolayers for NO₂ Sensing Characteristics at ppb Level and Room Temperature

Sensors, 2020
This work presents, for the very first time, very promising nitrogen dioxide (NO2) sensing characteristics of SnOx nanolayers obtained by the innovative and unique rheotaxial growth and vacuum oxidation (RGVO) processing technique.
Barbara Lyson-Sypien, Monika Kwoka
doaj   +1 more source

LogEvent2vec: LogEvent-to-Vector Based Anomaly Detection for Large-Scale Logs in Internet of Things

Sensors, 2020
Log anomaly detection is an efficient method to manage modern large-scale Internet of Things (IoT) systems. More and more works start to apply natural language processing (NLP) methods, and in particular word2vec, in the log feature extraction.
Jin Wang, Yangning Tang, Shiming He, Changqing Zhao, Pradip Kumar Sharma, Osama Alfarraj, Amr Tolba   +6 more
doaj   +1 more source

Spatiotemporal evolution analysis of NO2 column density before and after COVID-19 pandemic in Henan province based on SI-APSTE model

Scientific Reports, 2021
Air pollution is the result of comprehensive evolution of a dynamic and complex system composed of emission sources, topography, meteorology and other environmental factors. The establishment of spatiotemporal evolution model is of great significance for
Yang Liu, Jinhuan Zhao, Kunlin Song, Cheng Cheng, Shenshen Li, Kun Cai   +5 more
doaj   +1 more source

Optimized Deep Convolutional Neural Networks for Identification of Macular Diseases from Optical Coherence Tomography Images

Algorithms, 2019
Finetuning pre-trained deep neural networks (DNN) delicately designed for large-scale natural images may not be suitable for medical images due to the intrinsic difference between the datasets.
Qingge Ji, Jie Huang, Wenjie He, Yankui Sun   +3 more
doaj   +1 more source

MRC-Former: A Multiscale Rotation-Invariant and Center-Preserving Transformer for Hyperspectral Image Classification

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The effectiveness of modeling joint spatial-spectral features is crucial for the performance of hyperspectral image (HSI) classification. However, existing convolutional neural network (CNN) and Transformer-based methods fail to effectively address ...
Qian Weng, Zhaocheng Li, Zengying Pan, Xiansheng Huang, Jiawen Lin   +4 more
doaj   +1 more source

Adaptive RGB-D Semantic Segmentation with Skip-Connection Fusion for Indoor Staircase and Elevator Localization

Journal of Imaging
Accurate semantic segmentation of indoor architectural elements, such as staircases and elevators, is critical for safe and efficient robotic navigation, particularly in complex multi-floor environments.
Zihan Zhu, Henghong Lin, Anastasia Ioannou, Tao Wang   +3 more
doaj   +1 more source