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Asymmetric gradient penalty based on power exponential function for imbalanced data classification
Model bias is a tricky problem in imbalanced data classification. An asymmetric gradient penalty method is proposed based on the power exponential...
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A dynamic loss function for improved semantic segmentation
The effectiveness of the training process significantly impacts the performance of a machine learning (ML) model. The loss function plays an...
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Drag and heat-flux assessment of hypersonic flow on an asymmetric blunt shaped body
Assessment of aerodynamic forces and heat-transfer rates for certain flight conditions is an essential task in designing a hypersonic vehicle....
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Asymmetric Cryptosystem Using Structured Phase Masks in Discrete Cosine and Fractional Fourier Transforms
For enhancement of the security, an asymmetric cryptosystem scheme is proposed for double image encryption based on a structured phase mask (SPM) in...
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Rethinking the Dice Loss for Deep Learning Lesion Segmentation in Medical Images
Deep learning is widely used for lesion segmentation in medical images due to its breakthrough performance. Loss functions are critical in a deep...
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Optimum Optical Designs for Diffraction-Limited Terahertz Spectroscopy and Imaging Systems Using Off-Axis Parabolic Mirrors
Off-axis parabolic mirrors (OAPMs) are widely used in the THz and mm-wave communities for spectroscopy and imaging applications, as a result of their...
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Learning to detect extreme objects for remote sensing images
The scale and shape of objects in remote sensing images varies greatly, and thus the object detection of remote sensing image has always been a...
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Implementation of Secure Health Care Application Using IoT
The main focus of this chapter is on the health care application using the Blowfish and ECC algorithms for providing security to the data. In the...
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Face anti-spoofing via conditional adversarial domain generalization
Many currently existing face anti-spoofing methods do not generalize well to new scenarios due to the changes of background, light, and other...
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Numerical analysis on temperature characteristics and melt flow dynamic behaviors in electron beam welding of dissimilar aluminum alloy lock-butt joint
In this research, the temperature field characteristics and melt flow behaviors of 5A06/6061 aluminum alloy lock-butt joint during the electron beam...
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Intracavity spherical aberration for selective generation of single-transverse-mode Laguerre-Gaussian output with order up to 95
We investigate the generation of single-transverse-mode Laguerre-Gaussian (LG) emission from a diode-end-pumped Nd:YVO 4 , 1064 nm laser using mode...
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Multi-focus light-field microscopy for high-speed large-volume imaging
High-speed visualization of three-dimensional (3D) processes across a large field of view with cellular resolution is essential for understanding...
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Green Manufacturing of Electrically-Tunable Smart Light-Weight Planar Optics: A Review
Evolving demands for compact, light-weight, and versatile optical systems across various industries require the facile integration of planar...
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Optical spin-symmetry breaking for high-efficiency directional helicity-multiplexed metaholograms
Helicity-multiplexed metasurfaces based on symmetric spin–orbit interactions (SOIs) have practical limits because they cannot provide...
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Simulation and Experimental Study of a Linear Bifocal Antenna Array
AbstractA leaky-wave bifocal linear array focused in the Fresnel zone is considered. The structural parameters provide perfect focusing of the field...
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Defect Detection of Exposure Lead Frame Based on Improved YOLOX
In view of the unpredictable defects in the industrial lead frame production line, many factories invest a lot of manpower resources and material...
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Unsupervised Enhancement of Ultrasonic Sequential Images Based on High-Frequency Feature Extraction and Bi-ConvLSTM
Ultrasonic X-scan testing enables multiple equidistant layer scanning images along the direction of material thickness to obtain an overall...
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Imbalanced Learning for Robust Moving Object Classification in Video Surveillance Applications
In the context of video surveillance applications in outdoor scenes, the moving object classification still remains an active area of research, due...
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Gradient folding metasurfaces with simultaneous phase and amplitude modulation
An elastic metasurface with a gradient index of functional units, namely gradient folding metasurface (GFMS), is proposed to simultaneously...
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Effort Informed Roadmaps (EIRM*): Efficient Asymptotically Optimal Multiquery Planning by Actively Reusing Validation Effort
Multiquery planning algorithms find paths between various different starts and goals in a single search space. They are designed to do so efficiently...