Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Title
Now showing items 1298-1317 of 1633
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Conference Object
Safe adaptive control for performance improvement
(2006)In the past fifty years, adaptive control theory has reached a high level of maturity. However, applications of adaptive control in safety sensitive systems are still very limited. Conventional identifier based adaptive ...
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Article
Safe density ratio modeling
(2009)An important problem in logistic regression modeling is the existence of the maximum likelihood estimators. In particular, when the sample size is small, the maximum likelihood estimator of the regression parameters does ...
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Article
Sample path asymmetries in non-gaussian random processes
(2014)We tackle an important although rarely addressed question of accounting for a variety of asymmetries frequently observed in stochastic temporal/spatial records. First, we review some measures intending to capture such ...
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Article
Satisfaction of boundary conditions for Chebyshev collocation methods in cuboidal domains
(1994)A collocation strategy for the satisfaction of boundary conditions in the application of Chebyshev spectral methods to Poisson and biharmonic-type problems in cuboidal domains is presented. This strategy leads, in both ...
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Conference Object
A scalable iterative convex design for nonlinear systems
(2012)A recently developed control scheme for approximately optimal control of nonlinear systems is the so-called Convex Control Design (ConvCD) methodology, that transforms the control problem of generic nonlinear systems into ...
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Article
Scanning advanced automobile technology
(2007)This introductory article overviews the progress of electrical, electronics, software, and other relevant technologies that shape the modern automobile. Some of these technologies are described in more detail in the articles ...
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Article
Scanning the issue
(2007)
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Article
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Book
Selected Works of Murray Rosenblatt
(Springer, 2011)
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Article
Self-inverse and exchangeable random variables
(2013)A random variable Z will be called self-inverse if it has the same distribution as its reciprocal Z -1. It is shown that if Z is defined as a ratio, X / Y, of two rv's X and Y (with P[X=0]=P[Y=0]=0), then Z is self-inverse ...
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Article
Self-normalization for heavy-tailed time series with long memory
(2007)Many time series data sets have heavy tails and/or long memory, both of which are well-known to greatly influence the rate of convergence of the sample mean. Typically time series analysts consider models with either heavy ...
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Article
Semi-Markov Modelling for Multi-State Systems
(2016)In this work we focus on multi state systems that we model by means of semi-Markov processes. The sojourn times are seen to be independent not identically distributed random variables and assumed to belong to a general ...
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Conference Object
Semi-Markov modelling for multi-state systems
(Institute of Electrical and Electronics Engineers Inc., 2014)Markov processes are widely used in reliability engineering. In this work we focus on multi state systems (MSS) and apply the Semi-Markov methodology for parameter estimation. For this purpose the sojourn times are assumed ...
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Conference Object
Semiglobal stabilization of nonlinear uncertain systems via a lyapunov-based switching logic
(Institute of Electrical and Electronics Engineers Inc., 2013)An adaptive supervisory switching control scheme for nonlinear uncertain systems is developed. Such a scheme comprises: A family of nonlinear candidate controllers, designed using a convex control design methodology
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Article
Semiparametric approach to the one-way layout
(2001)We consider m distributions in which the first m-1 are obtained by multiplicative exponential distortions of the mth distribution, which is a reference. The combined data from rn samples, one from each distribution, are ...
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Article
Semiparametric inference for the two-way layout under order restrictions
(2014)There are many situations in which a researcher would like to analyse data from a two-way layout. Often, the assumptions of linearity and normality may not hold. To address such situations, we introduce a semiparametric ...
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Conference Object
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Article
Series and product representations for some mathematical constants
(2009)We present several series and product representations for γ, π, and other mathematical constants. One of our results states that, for all real numbers μ s>0, we have γ = ∑k=0∞ 1/(1 + μ)k+1∑m=0k,(m k)} (-1) mμk-m S(m), where ...
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Article
Series decomposition of fractional Brownian motion and its Lamperti transform
(2009)The Lamperti transformation of a self-similar process is a stationary process. In particular, the fractional Brownian motion transforms to the second order stationary Gaussian process. This process is represented as a ...
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Article
Series representations for γ and other mathematical constants
(2008)We present series representations for some mathematical constants, like γ, π, log 2, ζ(3). In particular, we prove that the following representation for Euler's constant is valid: Equation presented. © 2008 Springer ...