Results 101 to 110 of about 441,425 (328)

On loss functions which minimize to conditional expected values and posterior probabilities [PDF]

open access: yes, 1993
A loss function, or objective function, is a function used to compare parameters when fitting a model to data. The loss function gives a distance between the model output and the desired output. Two common examples are the squared-error loss function and
Goodman, Rod   +2 more
core  

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

Impact of learning rate and momentum factor in the performance of back-propagation neural network to identify internal dynamics of chaotic motion

open access: yesKuwait Journal of Science, 2014
The utilization of back-propagation neural network in identification of internal dynamics of chaotic motion is found appropriate. However, during its training through Rumelhart algorithm, it is found that, a high learning rate ( ) leads to rapid learning
S. KARMAKAR, G. SHRIVASTAVA, M. K. KOWAR
doaj  

Radar Coincidence Imaging for Off-Grid Target Using Frequency-Hopping Waveforms

open access: yesInternational Journal of Antennas and Propagation, 2016
Radar coincidence imaging (RCI) is a high-resolution staring imaging technique without the limitation of the target relative motion. To achieve better imaging performance, sparse reconstruction is commonly used.
Xiaoli Zhou   +4 more
doaj   +1 more source

Estimation of the Biot Number Using Genetic Algorithms: Application for the Drying Process

open access: yesEnergies, 2019
The Biot number informs researchers about the controlling mechanisms employed for heat or mass transfer during the considered process. The mass transfer coefficients (and heat transfer coefficients) are usually determined experimentally based on direct ...
Krzysztof Górnicki   +2 more
doaj   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

Neural minimization methods (NMM) for solving variable order fractional delay differential equations (FDDEs) with simulated annealing (SA).

open access: yesPLoS ONE, 2019
To enrich any model and its dynamics introduction of delay is useful, that models a precise description of real-life phenomena. Differential equations in which current time derivatives count on the solution and its derivatives at a prior time are known ...
Amber Shaikh   +4 more
doaj   +1 more source

Distributed, simple and stable network localization

open access: yes, 2014
We propose a simple, stable and distributed algorithm which directly optimizes the nonconvex maximum likelihood criterion for sensor network localization, with no need to tune any free parameter.
Gomes, Joao   +2 more
core   +1 more source

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

open access: yesAdvanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna   +10 more
wiley   +1 more source

DNN-based Sub-6 GHz assisted millimeter wave network power allocation algorithm

open access: yesTongxin xuebao, 2021
Aimed at the problems of the signaling cost and power consumption in the power control measurement of the millimeter wave system, as well as the complexity caused by iteration operations, a millimeter wave link power allocation prediction algorithm using
Changyin SUN   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy