Results 31 to 40 of about 2,045,959 (299)

Threshold Value Estimation Using Adaptive Two-Stage Plans in R

open access: yesJournal of Statistical Software, 2015
This paper introduces the R package twostageTE for estimation of an inverse regression function at a given point when one can sample an explanatory covariate at different values and measure the corresponding responses.
Shawn Mankad   +2 more
doaj   +1 more source

Fast contrast enhancement by adaptive pixel value stretching

open access: yesInternational Journal of Distributed Sensor Networks, 2018
In this article, we propose a fast and effective method for digital image contrast enhancement. The gray-level dynamic range of contrast-distorted images is extended maximally via adaptive pixel value stretching.
Gang Cao   +3 more
doaj   +1 more source

An Adaptive Policy Evaluation Network Based on Recursive Least Squares Temporal Difference With Gradient Correction

open access: yesIEEE Access, 2018
Reinforcement learning (RL) is an important machine learning paradigm that can be used for learning from the data obtained by the human-computer interface and the interaction in human-centered smart systems. One of the essential problems in RL algorithms
Dazi Li   +3 more
doaj   +1 more source

Numerical Methods for Singular Perturbation Problems [PDF]

open access: yes, 1981
Consider the two-point boundary value problem for a stiff system of ordinary differential equations.
Kreiss, Barbro, Kreiss, Heinz-Otto
core   +1 more source

An Improved Image Watermarking by Modifying Selected DWT-DCT Coefficients

open access: yesIEEE Access, 2021
Digital images can be easily copied or manipulated by irresponsible persons. The right property needs to be secured and protected from illegal copies and piracy. Digital watermarking is one of the solutions to protect the intellectual property of digital
Ferda Ernawan   +2 more
doaj   +1 more source

Modification of P&O Method on MPPT with PI Controller to Reduce Power Oscillation during Steady-State Condition

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems)
This paper describes an improvement of the Perturb and Observe (P&O) method for maximum power-point tracking (MPPT) on a photovoltaic (PV) cell generating system.
Nisrina Rania Habibah   +2 more
doaj   +1 more source

ADAPTIVE CAPACITY AND BREEDING VALUE OF VEGETABLE VARIETIES OF PEAS COLLECTION

open access: yesОвощи России, 2015
Adaptive properties and selection value of vegetable pea collection based on «seed weight per plant» have been studied. The genotypes with high total and specific adaptive capacity, relative stability, and breeding value for multiple purposes have been ...
T. N. Abrosimova, A. N. Fadeeva
doaj   +1 more source

GNSS DOPPLER VELOCITY BASED ON ADAPTIVE ROBUST KALMAN FILTERING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The main factors affecting the error of Doppler velocity measurement mainly come from the measurement errors of GNSS data, influence of different motion states on GNSS velocity measurement and the noise of different receiver types.
H. Liu   +5 more
doaj   +1 more source

Debunking Arguments in Metaethics and Metaphysics [PDF]

open access: yes, 2019
Evolutionary debunking arguments abound, but it is widely assumed that they do not arise for our perceptual beliefs about midsized objects, insofar as the adaptive value of our object beliefs cannot be explained without reference to the objects ...
Korman, Daniel Z.
core   +1 more source

Oracle Properties and Finite Sample Inference of the Adaptive Lasso for Time Series Regression Models [PDF]

open access: yes, 2013
We derive new theoretical results on the properties of the adaptive least absolute shrinkage and selection operator (adaptive lasso) for time series regression models.
Audrino, Francesco, Camponovo, Lorenzo
core   +1 more source

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