Results 21 to 30 of about 40,682 (295)

Evaluasi non-destruktif pada pemalsuan tepung kacang merah (Phaseolus vulgaris L.) menggunakan spektroskopi visible-near infrared (VIS-NIR)

open access: yesAgrointek, 2023
Food adulteration is one of the biggest concerns of quality control. Food adulteration is adding or replacing a product with one or more similar products to increase economic value.
Laila Rahmawati, Hari Hariadi
doaj   +1 more source

Control of Variation by Reward Probability. [PDF]

open access: yesJournal of Experimental Psychology: Animal Behavior Processes, 2004
Two bar-press experiments with rats tested the rule that reducing expectation of reward increases the variation from which reward selects. Experiment 1 used a discrete-trial random-interval schedule, with trials signaled by light or sound. One signal always ended with reward; the other signal ended with reward less often.
Gharib, A, Gade, C, Roberts, Seth
openaire   +3 more sources

Supervised Machine Learning with Control Variates for American Option Pricing

open access: yesFoundations of Computing and Decision Sciences, 2018
In this paper, we make use of a Bayesian (supervised learning) approach in pricing American options via Monte Carlo simulations. We first present Gaussian process regression (Kriging) approach for American options pricing and compare its performance in ...
Mu Gang   +3 more
doaj   +1 more source

Effect of Computer-Assisted Instruction on Science Achievement [PDF]

open access: yesFanāvarī-i āmūzish, 2010
In this research, the effectiveness of Computer-Assisted Instruction on Academic Achievement of Higher Primary School in Ahwaz City has been surveying. Two hounded students (boys and girls) randomly selected and in each school, two classes (50 students ...
H. Delf Acharsh
doaj   +1 more source

Corn Silage as a Total Diet with by-Products of the Babassu Agroindustry in the Feed of Confined Ruminants

open access: yesAgronomy, 2023
This study aimed to evaluate the chemical composition of total ration silage (TRS) containing two babassu by-products to replace the corn. The silages were formulated to meet the requirements of sheep for an average daily gain of 200 g/day.
Cledson Sá   +13 more
doaj   +1 more source

New-Onset Post-Operative Atrial Fibrillation in Patients Undergoing Coronary Artery Bypass Grafting Surgery - A Retrospective Case-Control Study [PDF]

open access: yesBrazilian Journal of Cardiovascular Surgery, 2022
Introduction: New-onset postoperative atrial fibrillation (POAF) is a common complication following coronary artery bypass grafting (CABG) surgery. Objective: To explore predictive factors and potential mechanisms of new-onset POAF in isolated off-pump ...
Xuehui Cui   +6 more
doaj   +1 more source

Being a morning man has causal effects on the cerebral cortex: a Mendelian randomization study

open access: yesFrontiers in Neuroscience, 2023
IntroductionNumerous studies have suggested a connection between circadian rhythm and neurological disorders with cognitive and consciousness impairments in humans, yet little evidence stands for a causal relationship between circadian rhythm and the ...
Fan Yang   +14 more
doaj   +1 more source

Stochastic methods for solving high-dimensional partial differential equations

open access: yes, 2018
We propose algorithms for solving high-dimensional Partial Differential Equations (PDEs) that combine a probabilistic interpretation of PDEs, through Feynman-Kac representation, with sparse interpolation.
A Cohen   +10 more
core   +3 more sources

Control variates for stochastic gradient MCMC [PDF]

open access: yes, 2019
It is well known that Markov chain Monte Carlo (MCMC) methods scale poorly with dataset size. A popular class of methods for solving this issue is stochastic gradient MCMC (SGMCMC). These methods use a noisy estimate of the gradient of the log-posterior,
Baker, Jack   +3 more
core   +1 more source

Relative Variational Intrinsic Control

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
In the absence of external rewards, agents can still learn useful behaviors by identifying and mastering a set of diverse skills within their environment. Existing skill learning methods use mutual information objectives to incentivize each skill to be diverse and distinguishable from the rest.
Baumli, Kate   +3 more
openaire   +2 more sources

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