Results 11 to 20 of about 643,520 (291)

NHNet: A non‐local hierarchical network for image denoising

open access: yesIET Image Processing, 2022
With the fast development of deep learning models, hierarchical convolutional neural networks have achieved great success in image denoising tasks. To further boost the performance of image denoising, a novel non‐local hierarchical network (NHNet) is ...
Jiahong Zhang   +4 more
doaj   +1 more source

A Survey of Information Dissemination Model, Datasets, and Insight

open access: yesMathematics, 2023
Information dissemination refers to how information spreads among users on social networks. With the widespread application of mobile communication and internet technologies, people increasingly rely on information on the internet, and the mode of ...
Yanchao Liu   +3 more
doaj   +1 more source

Technological convergence in audiovisual media technologies [PDF]

open access: yes, 2012
This paper presents the results of a large-scale survey on viewing practices. Data from over 10,000 cases are used to explore the adoption-use diffusion gap and the correlation structures in the frequencies of the use of multiple channels (e.g.
Courtois, Cédric   +2 more
core   +2 more sources

Asymptotic extraction approach for antennas in a multilayered spherical media [PDF]

open access: yes, 2010
An efficient algorithm is introduced to enhance the convergence of dyadic Green's functions (DGF) in a layered spherical media where asymptotic expressions have been developed. The formulated expressions involve an infinite series of spherical eigenmodes
Khamas, S.K.
core   +1 more source

Prompt-Based Word-Level Information Injection BERT for Chinese Named Entity Recognition

open access: yesApplied Sciences, 2023
Named entity recognition (NER) is a subfield of natural language processing (NLP) that identifies and classifies entities from plain text, such as people, organizations, locations, and other types.
Qiang He   +3 more
doaj   +1 more source

Ultrasound wave propagation through rough interfaces: Iterative methods [PDF]

open access: yes, 1996
Two iterative methods for the calculation of acoustic transmission through a rough interface\ud between two media are compared. The methods employ a continuous version of the conjugate\ud gradient technique.
Berg, P.M. van den   +2 more
core   +9 more sources

Tunable Frequency Selective Surface Based on a Sliding 3D-Printed Inserted Dielectric

open access: yesIEEE Access, 2021
A novel mechanically tunable frequency selective surface (FSS) based on a sliding 3D-printed inserted dielectric is presented in this paper. This paper first introduces the working mechanism of the tunable FSS, which indicates that the variable ...
Shihao Qiu, Qingxin Guo, Zengrui Li
doaj   +1 more source

Introduction to discrete functional analysis techniques for the numerical study of diffusion equations with irregular data [PDF]

open access: yes, 2015
We give an introduction to discrete functional analysis techniques for stationary and transient diffusion equations. We show how these techniques are used to establish the convergence of various numerical schemes without assuming non-physical regularity ...
Droniou, Jerome
core   +3 more sources

Joint Image Dehazing and Super-Resolution: Closed Shared Source Residual Attention Fusion Network

open access: yesIEEE Access, 2021
In real world, due to the existence of floating particles such as smoke and dust in the atmosphere, images taken by camera are susceptible to different levels of blurring, low contrast, color distortion and visual degradation, which would be amplified ...
Zhuoyuan Yang, Da Pan, Ping Shi
doaj   +1 more source

Spreading Dynamics of a 2SIH2R, Rumor Spreading Model in the Homogeneous Network

open access: yesComplexity, 2021
With the rapid development of social network in recent years, the threshold of information dissemination has become lower. Most of the time, rumors, as a special kind of information, are harmful to society.
Yan Wang   +3 more
doaj   +1 more source

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