Results 221 to 230 of about 70,159 (262)

Sleep, Physical Activity, and Mood Among People Seeking Mental Health Care.

open access: yesJAMA Netw Open
Kulshreshtha A   +4 more
europepmc   +1 more source

Quadratic Variation and Semimartingales

Probability and Its Applications, 2015
We now come to one of the key objects in stochastic analysis, and what fundamentally distinguishes the theory from classical calculus. This is the notion of the quadratic variation of a process.
Robert Elliott   +2 more
exaly   +2 more sources

Decomposition of Quadratic Variational Problems

2008
Variational problems have proved of value in many image processing and analysis applications. However increase of sensor resolution as occurred in medical imaging and experimental fluid dynamics demand for adapted solving strategies to handle the huge amount of data.
Florian Becker, Christoph Schnörr
openaire   +1 more source

Quadratic Variation Process

1983
For the remainder of this book, we shall only consider integrators M which are continuous local martingales. By Proposition 1.9 these are automatically local L 2-martingales. A more extensive treatment, encompassing right continuous integrators would require more elaborate considerations which are not suitable for inclusion in this short book.
K. L. Chung, R. J. Williams
openaire   +1 more source

Quadratic variation of deformations

1997
Hitherto no constitutive formalism of deformations provides a parameterization for the visually obvious features of their transformation grids. This paper notes a property of the thin-plate spline that one may exploit to this end. The bending energy that is minimized by the spline, usually expressed in matrix form, is also the double integral of the ...
openaire   +1 more source

A Logarithmic-Quadratic Proximal Method for Variational Inequalities

Computational Optimization and Applications, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alfred Auslender   +2 more
openaire   +2 more sources

Quadratic-Variation-Based Dynamic Strategies

Management Science, 1995
The paper analyzes a family of dynamic trading strategies which do not rely on any stochastic process assumptions (aside from continuity and positivity) and in particular do not require predicting future volatilities. Derivative payoffs can still be replicated, except that this occurs at the stopping time at which the “realized cumulative squared ...
openaire   +1 more source

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