Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 2174 for “"Stationary"”.
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Stationary Subspace Analysis: Towards understanding non-stationary data
… Entwicklung des ersten unüberwachten Verfahrens, Stationary Subspace Analysis (SSA), welches eine lineare Koordinatentransformation findet, die die beobachteten Daten in eine Gruppe von stationären und nicht-stationären Komponenten faktorisiert. Dies ist unerlässlich zur Analyse multivariater …
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Absolutely Continuous Stationary Measures
This thesis studies the absolute continuity of stationary measures. Given a finite set of measurable maps $S_1, S_2, \dots, S_n$ on a measurable set $X$ and a probability vector $p_1, p_2, \dots, p_n$ we say that a probability measure $\nu$ on $X$ is stationary if $\begin{equation*} \nu = …
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Computing stationary distribution locally
Computing stationary probabilities of states in a large countable state space Markov Chain (MC) has become central to many modern scientific disciplines, whether in statistical inference problems, or in network analyses. Standard methods involve large matrix multiplications as in power iterations, …
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Learning in non-stationary Environments
… domain is assumed to be the same, denoted as a stationary environment. If this is not the case and the distributions change between the two domains, it is called a non-stationary environment. <br /><br /> The research area of Domain Adaptation offers methods to adapt the input data or an already …
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Detection of Rotor and Load Faults in BLDC Motors Operating Under Stationary and Non-Stationary Conditions
… current. As most BLDC applications involve non-stationary operating conditions, the diagnosis of rotor faults in non-stationary conditions forms the third and most important part of this research. Several signal processing techniques are reviewed to analyze non-stationary signals. Three new …
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Simple Stationary Steps in Quantum Walks
… bounds on the number of quantum steps and simple stationary steps in these quantum walks. By a result of Kato, we map this formula to the equivariant quantum K-theory of partial flag manifolds G/P to give an alternate proof of [KLNS24, Theorem 8].
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The electrodynamics of spatially stationary objects
Not available
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Statistical process control of stationary processes
The burnt-in rate for simulated stationary and invertible ARMA1, 1(u, v) time series is discovered to be [u^(2t)]*(v a?? 1)^2. Thereafter, the first comprehensive simulation study is done to evaluate the performance-effort tradeoff between optimal EWMAST and optimal ARMAST control charts. The …
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Studying wildfire spread using stationary burners
A method for performed experiments using stationary gas burners and liquid fuel-soaked wicks to study flame geometry and buoyant instabilities important to fundamental wildland fire behaviour has been developed. This thesis focuses on experiments performed with stationary fires to carefully study …
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The Statistical Theory of Stationary Turbulence
This thesis concerns the theory of turbulence as well as that of wavelet transforms. The main contribution to the theory of turbulence is an extension of the von Karman-Howarth equation to turbulence that may be either two- or three-dimensional, and for which external forcing maintains the state of …
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Online learning of non-stationary sequences
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Variational inference for non-stationary distributions
… and try to identify if any of them work with non-stationary distributions. I conclude that Kalman Variational Bayes can do as good as any other algorithm for stationary distributions, and tracks non-stationary distributions better than any other algorithm in question.
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Stationary solutions of abstract kinetic equations
The abstract kinetic equation Tψ’=-Aψ is studied with partial range boundary conditions in two geometries, in the half space x≥0 and on a finite interval [0, r]. T and A are abstract self-adjoint operators in a complex Hilbert space. In the case of the half space problem it is assumed that T is a …
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Non-stationary Vehicle-to-Vehicle Channel Characterization
… the channel may be statistically non-stationary (NS), and traditional wide-sense stationary uncorrelated scattering (WSSUS) channel models will only be applicable for short durations. In this dissertation, we propose and evaluate NS V2V channel models in the 5 GHz band. We present TDL …
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Unsteady Radiant Heat Transfer in Stationary Media
Made available in DSpace on 2014-12-09T17:13:40Z (GMT). No. of bitstreams: 1 6706701.pdf: 3106386 bytes, checksum: 034aa7c1ab4343e18026de6e5e758f51 (MD5) Previous issue date: 1966
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Studies on stationary phase Vibrio sp. 2
Vibrio sp. 2 stationary phase cells are novel and interesting in that they are able to support phage growth in standing cultures, but not in shaken (aerated) cultures. Many physiological and morphological characteristics change when Vibrio sp. 2 stationary phase cells are removed from aeration: the …
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Effective Learning in Non-Stationary Multiagent Environments
Multiagent reinforcement learning (MARL) provides a principled framework for a group of artificial intelligence agents to learn collaborative and/or competitive behaviors at the level of human experts. Multiagent learning settings inherently solve much more complex problems than single-agent …
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