Results 41 to 50 of about 5,329,875 (275)

Variance of operators and derivations [PDF]

open access: yes, 2015
The variance of a bounded linear operator $a$ on a Hilbert space $H$ at a unit vector $h$ is defined by $D_h(a)=\|ah\|^2-||^2$. We show that two operators $a$ and $b$ have the same variance at all vectors $h\in H$ if and only if there exist scalars ...
Magajna, Bojan
core   +1 more source

Regularizing by the Variance of the Activations' Sample-Variances

open access: yesCoRR, 2018
Normalization techniques play an important role in supporting efficient and often more effective training of deep neural networks. While conventional methods explicitly normalize the activations, we suggest to add a loss term instead. This new loss term encourages the variance of the activations to be stable and not vary from one random mini-batch to ...
Etai Littwin, Lior Wolf
openaire   +3 more sources

Gini estimation under infinite variance [PDF]

open access: yes, 2017
We study the problems related to the estimation of the Gini index in presence of a fat-tailed data generating process, i.e. one in the stable distribution class with finite mean but infinite variance (i.e. with tail index $\alpha\in(1,2)$). We show that,
Cirillo, Pasquale   +2 more
core   +2 more sources

Amplitude variation in calibrated audiometer systems in Clinical Simulations

open access: yesNoise and Health, 2014
Manual pure tone audiometry is considered to be the gold standard for the assessment of hearing thresholds and has been in consistent use for a long period of time.
Christopher Barlow   +3 more
doaj   +1 more source

HEDGING (CO)VARIANCE RISK WITH VARIANCE SWAPS [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2008
In this paper, we quantify the impact on the representative agent's welfare of the presence of derivative products spanning covariance risk. In an asset allocation framework with stochastic (co)variances, we allow the agent to invest not only in the stocks but also in the associated variance swaps.
DA FONSECA J   +2 more
openaire   +3 more sources

Contrast Adaptation in Face Perception Revealed Through EEG and Behavior

open access: yesFrontiers in Systems Neuroscience, 2021
Exposure to a face can produce biases in the perception of subsequent faces. Typically, these face aftereffects are studied by adapting to an individual face or category (e.g., faces of a given gender) and can result in renormalization of perceptions ...
O. Scott Gwinn   +3 more
doaj   +1 more source

Watermark Embedding Scheme with Variance of Chromatic Components

open access: yesEngineering Proceedings, 2023
This paper contains the idea of inserting a watermark with the variance of color components of the image. The color image is converted into CIE color space.
Dur-e-Jabeen   +5 more
doaj   +1 more source

A Cosmic Variance Cookbook

open access: yes, 2010
Deep pencil beam surveys (10^11 Msun is ~38%, while it is ~27% for GEMS and ~12% for COSMOS. For galaxies of m*~10^10 Msun the relative cosmic variance is ~19% for GOODS, ~13% for GEMS and ~6% for COSMOS.
Moster, Benjamin P.   +3 more
core   +1 more source

Variance Theses in Ontology and Metaethics [PDF]

open access: yes, 2020
The chapter illustrates conceptual engineering by bringing up a number of issues in metaontology and metaethics. A prominent debate in metaontology relates to whether some existence concept is metaphysically privileged.
Eklund, Matti
core   +1 more source

Quality of life and associated factors in Swiss trans people: a cross-sectional study

open access: yesFrontiers in Psychiatry
BackgroundExperiences of stressful life events during transition may have a negative impact on quality of life (QoL) in trans persons. Little attention has been paid to this population in Switzerland, resulting in sparse data on their QoL and associated ...
David Garcia Nuñez   +6 more
doaj   +1 more source

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