Browsing by Subject "Random processes"
Now showing items 2140 of 65

Conference Object
How fast are the twodimensional gaussian waves?
(2002)For a stationary twodimensional random field evolving in time, we derive the intensity distributions of appropriately defined velocities of crossing contours. The results are based on a generalization of the Rice formula. ...

Article
The impact of randomization in smoothing networks
(2010)We revisit randomized smoothing networks (Herlihy and Tirthapura in J Parallel Distrib Comput 66(5):626632, 2006), which are made up of balancers and wires. We assume that balancers are oriented independently and uniformly ...

Conference Object
Improved performance bounds on maxproduct algorithms for multiple fault diagnosis in graphs with loops
(2008)In this paper, we analyze the performance of belief propagation maxproduct algorithms when used to solve the multiple fault diagnosis (MFD) problem. The MFD problem is described by a bipartite diagnosis graph (BDG) which ...

Conference Object
IPMicra: An IPaddress based location aware distributed web crawler
(2004)Distributed crawling is able to overcome Important limitations of the traditional singlesourced web crawling systems. However, the optimal benefit of distributed crawling is usually limited to the sites hosting the crawlers, ...

Article
Minimax games for stochastic systems subject to relative entropy uncertainty: Applications to SDEs on Hilbert spaces
(2007)In this paper, we consider minimax games for stochastic uncertain systems with the payoff being a nonlinear functional of the uncertain measure where the uncertainty is measured in terms of relative entropy between the ...

Conference Object
Modelling of the high firing variability of real cortical neurons with the temporal noisyleaky integrator neuron model
(IEEE, 1994)Using the Temporal NoisyLeaky Integrator (TNLI) neuron model with reset, we observed that high firing variability can be achieved for certain input parameter values which results from the temporal summation of noise in ...

Conference Object
Necessary conditions for partially observed diffusions
(IEEE, 1993)We present a new approach to deriving necessary conditions for stochastic partially observed control problems when the control enters the drift coefficient, and correlation between signal and observation noise is allowed. ...

Conference Object
Nonlinear estimation for a class of systems
(2006)This paper considers nonlinear estimation problems for a class of models, and employs relative entropy to describe the uncertainty classes. Two problems are formulated and their solutions are sought. 1) When the transition ...

Article
Nonlinear estimation for a class of systems
(2009)This paper considers nonlinear estimation problems for classes of models, and employs relative entropy to describe the uncertainty classes. Two optimization problems are formulated on general Banach spaces, and their ...

Article
Nonparametric Maximum Entropy
(1993)The standard maximum entropy method of Burg and the resulting autoregressive model has been widely applied for spectrum estimation and prediction. A generalization of the maximum entropy formalism in a nonparametric setting ...

Conference Object
Note on the distribution of extreme wave crests
(2005)The sea elevation at a fixed point is modelled by means of a second order model, which is a smooth algebraic function of a vector valued Gaussian process. Asymptotic methods, presented first in [1], are used to estimate ...

Conference Object
On the channel capacity of wireless fading channels
(2002)The objectives of this paper are twofold. First, to point out the significance of certain results on stochastic processes in computing the channel capacity for flat fading wireless channels. Second, to design an optimal ...

Conference Object
Optimal preprocessing strategies for perfect reconstruction of binary signals under powerconstrained transmission
(2004)In this paper we further explore our deterministic worstcase framework for perfect reconstruction of discrete data transmissions through dispersive communication channels. Specifically, we are concerned with perfect ...

Article
Partially observable nonlinear risksensitive control problems: Dynamic programming and verification theorems
(1997)In this paper, we consider continuoustime partially observable optimal control problems with exponentialofintegral cost criteria. We derive a rigorous verification theorem when the state and control enter nonlinear in ...

Article
Performance analysis for a changepoint problem
(1999)Nonlinear stochastic differential equations are used to model a version of the changepoint problem. State estimates of the minimum meansquareerrortype are used in likelihoodratio tests to detect the time of change. ...

Article
Poisson approximation for a sum of dependent indicators: An alternative approach
(2002)The random variables X1, X2,...,Xn are said to be totally negatively dependent (TND) if and only if the random variables Xi and Σj≠i Xj are negatively quadrant dependent for all i. Our main result provides, for TND 01 ...

Article
Power divergence family of tests for categorical time series models
(2002)A fundamental issue that arises after fitting a regression model is that of testing the goodness of the fit. Our work brings together the power divergence family of goodness of fit tests and regression models for categorical ...

Article
Random spectral measure for non Gaussian moving averages
(2017)We study the distribution of phases and amplitudes for the spectral representation of weighted moving averages of a general noise measure. The simple independent structure, known for the Gaussian case, and involving Rayleigh ...

Conference Object
A randomized, O(log w)depth 2smoothing network
(2009)A Ksmoothing network is a distributed, lowcontention data structure where tokens arrive arbitrarily on w input wires and reach w output wires via their completely asynchronous propagation through the network. The maximum ...

Article
Randomly crosslinked homopolymer networks: Synthesis by group transfer polymerization in solution and characterization of the aqueous degree of swelling
(2001)Randomly crosslinked homopolymer networks of 2(dimethylamino)ethyl methacrylate (DMAEMA) of various average degrees of polymerization (DPs) between crosslinks were synthesized by group transfer polymerization (GTP) in ...