Results 61 to 70 of about 9,337,952 (196)

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   +4 more sources

Variational Intrinsic Control Revisited

open access: yesCoRR, 2020
In this paper, we revisit variational intrinsic control (VIC), an unsupervised reinforcement learning method for finding the largest set of intrinsic options available to an agent. In the original work by Gregor et al. (2016), two VIC algorithms were proposed: one that represents the options explicitly, and the other that does it implicitly.
openaire   +4 more sources

Minimizing control variation in nonlinear optimal control [PDF]

open access: yesAutomatica, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ryan C. Loxton   +2 more
openaire   +4 more sources

Control variates for stochastic gradient MCMC [PDF]

open access: yesStatistics and Computing, 2018
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. These methods use a noisy estimate of the gradient of the log posterior, which reduces the per iteration computational cost of the algorithm.
Jack Baker   +3 more
openaire   +6 more sources

Scalable Control Variates for Monte Carlo Methods via Stochastic Optimization [PDF]

open access: yes, 2020
Control variates are a well-established tool to reduce the variance of Monte Carlo estimators. However, for large-scale problems including high-dimensional and large-sample settings, their advantages can be outweighed by a substantial computational cost.
Carin, L   +4 more
core   +1 more source

Comparing the effects of highly aspherical lenslets versus defocus incorporated multiple segment spectacle lenses on myopia control

open access: yesScientific Reports, 2023
To compare spectacle lenses with highly aspherical lenslets (HAL) versus defocus incorporated multiple segments (DIMS) on myopia progression control in 1 year.
Hui Guo   +4 more
doaj   +1 more source

Genetic Variation and the Control of Transcription

open access: yesCold Spring Harbor Symposia on Quantitative Biology, 2003
Identifying and understanding genetic variation is akey driver of agricultural, biotechnological, and biomedical research and commercialization; the major focus ofgenetic variation research has until now been on changesto protein-coding sequences because these are computationally and experimentally accessible.
Cotsapas, Chris   +4 more
openaire   +2 more sources

ORTHOGONAL PERMUTATION SAMPLING FOR SHAPLEY VALUES: UNBIASED STRATIFIED ESTIMATORS WITH VARIANCE GUARANTEES

open access: yesJournal of Intelligent Systems and Applied Data Science
Shapley values for feature attribution suffer from high variance requiring thousands of model evaluations. We introduce Orthogonal Permutation Sampling (OPS), achieving provable variance reduction through: (i) exact position stratification, (ii ...
YASH VARSHNEY, RANAV TYAGI, ANURAG SINHA
doaj   +1 more source

Genetic and morphometric differences between yellowtail snapper (Ocyurus chrysurus, Lutjanidae) populations of the tropical West Atlantic

open access: yesGenetics and Molecular Biology, 2008
Populations of Ocyurus chrysurus were compared genetically and morphometrically along the West Atlantic coast to test the null hypothesis of population homogeneity in the area.
Anderson V. Vasconcellos   +4 more
doaj   +1 more source

Prediction of regionalized insurance risks based on control variates

open access: yes, 2014
We show how regional prediction of ca rinsurance risks can be improved for finer subregions by combining explanatory modeling with phenomenologicalmodels from industrial practice. Motivated by the control-variates technique, wepropose a suitable combined
Christiansen, Marcus C.   +3 more
core   +1 more source

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