Results 21 to 30 of about 184,535 (247)

Utilizing Mask RCNN for Monitoring Postoperative Free Flap: Circulatory Compromise Detection Based on Visible-Light and Infrared Images

open access: yesIEEE Access, 2022
The new postoperative free flap monitoring system combines visible-light and infrared techniques to overcome the limitations of our previous study, such as resistance to illumination change, patients with large movements, and the infrared images being ...
Chi-En Lee   +4 more
doaj   +1 more source

An unsupervised learning-based generalization of Data Envelopment Analysis

open access: yesOperations Research Perspectives, 2023
In this paper, we introduce an unsupervised machine learning method for production frontier estimation. This new approach satisfies fundamental properties of microeconomics, such as convexity and free disposability (shape constraints).
Raul Moragues   +2 more
doaj   +1 more source

Accurate Evaluation of Polynomials in Legendre Basis

open access: yesJournal of Applied Mathematics, 2014
This paper presents a compensated algorithm for accurate evaluation of a polynomial in Legendre basis. Since the coefficients of the evaluated polynomial are fractions, we propose to store these coefficients in two floating point numbers, such as double ...
Peibing Du, Hao Jiang, Lizhi Cheng
doaj   +1 more source

Free-Fermion Subsystem Codes

open access: yesPRX Quantum, 2022
We consider quantum error-correcting subsystem codes whose gauge generators realize a translation-invariant, free-fermion-solvable spin model. In this setting, errors are suppressed by a Hamiltonian whose terms are the gauge generators of the code and ...
Adrian Chapman   +2 more
doaj   +1 more source

Adaptive Model-Free Coupling Controller Design for Multi-Axis Motion Systems

open access: yesApplied Sciences, 2020
In this study, we introduce an adaptive model-free coupling controller while using recurrent fuzzy neural network (RFNN) for multi-axis system to minimize the contour error.
Bo-Sheng Chen, Ching-Hung Lee
doaj   +1 more source

Accurate Sum and Dot Product with New Instruction for High-Precision Computing on ARMv8 Processor

open access: yesMathematics
The accumulation of rounding errors can lead to unreliable results. Therefore, accurate and efficient algorithms are required. A processor from the ARMv8 architecture has introduced new instructions for high-precision computation.
Kaisen Xie   +3 more
doaj   +1 more source

Superpixel-based time-series reconstruction for optical images incorporating SAR data using autoencoder networks

open access: yesGIScience & Remote Sensing, 2020
Time-series reconstruction for cloud/shadow-covered optical satellite images has great significance for enhancing the data availability and temporal change analysis.
Ya’nan Zhou   +7 more
doaj   +1 more source

Calibration-Free Robot-Sensor Calibration approach based on Second-Order Cone Programming

open access: yesMATEC Web of Conferences, 2018
In order to overcome the restrictions of traditional robot-sensor calibration method which solve the tool-camera transformation and robot-world transformation rely on calibration target, a calibration-free approach that solve the robot-sensor calibration
Wei Li   +3 more
doaj   +1 more source

Integration of Leveling and GNSS Data to Develop Relative Vertical Movements of the Earth’s Crust Using Hybrid Models

open access: yesApplied Sciences
This study compared two approaches to integrating leveling and GNSS data to develop relative vertical movements of the Earth’s crust. Novel approaches were tested using transformation and hybrid grid adjustment.
Bartosz Naumowicz, Kamil Kowalczyk
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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