Browsing by Keywords "Mathematical Models"
Now showing items 1-12 of 12
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Adhesive energy, force and barrier height between simple metal surfaces
(1992)Using the self-consistent field pseudopotential method we calculated the adhesive energy, perpendicular and lateral forces and barrier height between two rigid A1(001) slabs modeling the sample and a blunt tip. We found ... -
Automated construction of fuzzy event sets and its application to active databases
(IEEE, 2001)Fuzzy sets and fuzzy logic research aims to bridge the gap between the crisp world of math and the real world. Fuzzy set theory was applied to many different areas, from control to databases. Sometimes the number of events ... -
Circuit partitioning using mean field annealing
(Elsevier, 1995)Mean field annealing (MFA) algorithm, proposed for solving combinatorial optimization problems, combines the characteristics of neural networks and simulated annealing. Previous works on MFA resulted with successful mapping ... -
Comparison of multilevel methods for kronecker-based Markovian representations
(Springer, 2004)The paper presents a class of numerical methods to compute the stationary distribution of Markov chains (MCs) with large and structured state spaces. A popular way of dealing with large state spaces in Markovian modeling ... -
Design and evaluation of a new transaction execution model for multidatabase systems
(Elsevier, 1997)In this paper, we present a new transaction execution model that captures the formalism and semantics of various extended transaction models and adopts them to a multidatabase system (MDBS) environment. The proposed model ... -
Fast insect damage detection in wheat kernels using transmittance images
(2004)We used transmittance images and different learning algorithms to classify insect damaged and un-damaged wheat kernels. Using the histogram of the pixels of the wheat images as the feature, and the linear model as the ... -
Hypergraph models and algorithms for data-pattern-based clustering
(Springer, 2004)In traditional approaches for clustering market basket type data, relations among transactions are modeled according to the items occurring in these transactions. However, an individual item might induce different relations ... -
Iterative disaggregation for a class of lumpable discrete-time stochastic automata networks
(Elsevier, 2003)Stochastic automata networks (SANs) have been developed and used in the last 15 years as a modeling formalism for large systems that can be decomposed into loosely connected components. In this work, we concentrate on the ... -
Iterative methods based on splittings for stochastic automata networks
(1998)This paper presents iterative methods based on splittings (Jacobi, Gauss-Seidel, Successive Over Relaxation) and their block versions for Stochastic Automata Networks (SANs). These methods prove to be better than the power ... -
Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence
(OSA Publishing, 2002)A linear algebraic theory of partial coherence is presented that allows precise mathematical definitions of concepts such as coherence and incoherence. This not only provides new perspectives and insights but also allows ... -
Perspective projections in the space-frequency plane and fractional Fourier transforms
(OSA Publishing, 2000-07-06)Perspective projections in the space-frequency plane are analyzed, and it is shown that under certain conditions they can he approximately modeled in terms of the fractional Fourier transform, The region of validity of the ... -
Transaction processing in distributed active real-time database systems
(Elsevier, 1998)An active real-time database system (ARTDBS) is designed to provide timely response to the critical situations that are defined on database states. Although a number of studies have already addressed various issues in ...
