Results 21 to 30 of about 204,193 (268)

Clark-Ocone type formulas in the Meixner white noise analysis

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
In the classical Gaussian analysis the Clark-Ocone formula allows to reconstruct an integrand if we know the Ito stochastic integral. This formula can be written in the form$$F=\mathbf EF+\int\mathbf E\big\{\partial_t F|_{\mathcal F_t}\big\}dW_t,$$where ...
N. A. Kachanovsky
doaj   +1 more source

Measure of Similarity between GMMs by Embedding of the Parameter Space That Preserves KL Divergence

open access: yesMathematics, 2021
In this work, we deliver a novel measure of similarity between Gaussian mixture models (GMMs) by neighborhood preserving embedding (NPE) of the parameter space, that projects components of GMMs, which by our assumption lie close to lower dimensional ...
Branislav Popović   +4 more
doaj   +1 more source

Gaussian measures in function space [PDF]

open access: yesPacific Journal of Mathematics, 1966
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Thermometry of Gaussian quantum systems using Gaussian measurements

open access: yesQuantum, 2022
We study the problem of estimating the temperature of Gaussian systems with feasible measurements, namely Gaussian and photo-detection-like measurements. For Gaussian measurements, we develop a general method to identify the optimal measurement numerically, and derive the analytical solutions in some relevant cases.
Cenni, Marina F. B .   +3 more
openaire   +4 more sources

An Objective No-Reference Measure of Illumination Assessment

open access: yesMeasurement Science Review, 2015
Illumination problems have been an important concern in many image processing applications. An important issue in the field of illumination enhancement is absence of a quantitative measure for assessment of illumination of an image. In this research work
Anbarjafari Gholamreza
doaj   +1 more source

Fitting a Gaussian Mixture Model Through the Gini Index

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2021
A linear combination of Gaussian components is known as a Gaussian mixture model. It is widely used in data mining and pattern recognition. In this paper, we propose a method to estimate the parameters of the density function given by a Gaussian mixture ...
López-Lobato Adriana Laura   +1 more
doaj   +1 more source

Gaussian Measure of Normal Subgroups

open access: yesThe Annals of Probability, 1983
Let $(\mu_t)_{t>0}$ be a Gaussian semigroup on a metric, separable, complete group $G$. If $H$ is a Borel measurable normal subgroup of $G$ such that $\mu_t(H) > 0$ for all $t$, then $\mu_t(H) = 1$ for every $t$. If, in addition, $\mu_t$ are symmetric, then $\mu_t(H) > 0$ for a single $t$ implies $\mu_t(H) = 1$ for all $t$.
Byczkowski, T., Hulanicki, A.
openaire   +3 more sources

Unsupervised Regression Model of Geodesic Flow Kernel Based on Dynamic Independent Component Analysis and Dynamic Principal Component Analysis

open access: yesShanghai Jiaotong Daxue xuebao, 2020
It is difficult to accurately measure parameters by using the traditional soft sensor algorithm when the working condition of industrial process is changed. Therefore, a transfer learning strategy is introduced based on geodesic flow kernel to solve this
LAI Yanbo   +3 more
doaj   +1 more source

Robust surface crack detection with structure line guidance

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Crack detection plays a pivotal role in civil engineering applications, where vision-based methods find extensive use. In practice, crack images are sourced from Unmanned Aerial Vehicles (UAV) and handheld photography, and the balance between the ...
Yongjun Zhang   +6 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

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