Discrete Dynamics of Oja’s Flow
ثبت نشده
چکیده
,[11 ii~(lfi(lal Ii(ural nt’twork et[uip[)ed with a proper Ifar[iill: PLIICcali act iiS alI associative memory, patIcr]l cliissifitr ailcl feature extractor. Of course, the SLI(’(’<’SS of’ Sllcll ail a.igorithm crucially depends on [ IL(,cal)iil)ility of” learning the connection weights in 1he l~e[iral IIet\vork. Such learning rules are usually Illodell(d I)y no[lliuear dynamical systems, evolving ill the s~)act of weight vecors, and the learning abilities of the [leural network are thus reflected by the convergence properties of the dynamical sytem. An inlport,a.nt task of signal processing, linear algebra and statistical estimation is that of principal component analysis. Here the principal component
منابع مشابه
Diffusion Approximations for Online Principal Component Estimation and Global Convergence
In this paper, we propose to adopt the diffusion approximation tools to study the dynamics of Oja’s iteration which is an online stochastic gradient descent method for the principal component analysis. Oja’s iteration maintains a running estimate of the true principal component from streaming data and enjoys less temporal and spatial complexities. We show that the Oja’s iteration for the top ei...
متن کاملNumerical Investigation of the Influence of Sand Particle Concentration on Long Radius Elbow Erosion for Liquid-Solid Flow
Erosion caused by sand transportation in flow changing devices is a serious concern in the hydrocarbon and mineral processing industry, which entail to failure and malfunction of flow devices. In this study, computational fluid dynamics (CFD) with discrete phase models (DPM) were employed for analysis of carbon steel long radius 90-Degree elbow erosion due to the sand concentration of 2, 5 and ...
متن کاملMultiphase flow and tromp curve simulation of dense medium cyclones using Computational Fluid Dynamics
Dense Medium Cyclone is a high capacity device that is widely used in coal preparation. It is simple in design but the swirling turbulent flow, the presence of medium and coal with different density and size fraction and the presence of the air-core make the flow pattern in DMCs complex. In this article the flow pattern simulation of DMC is performed with computational fluid dynamics and Fluent...
متن کاملHeat transfer in MHD square duct flow of nanofluid with discrete heat sources
The effect of thermal and solutal buoyancy induced by a discrete source of heat and mass transfer in a square duct under the influence of magnetic field, especially at the turbulent regime for the first time is reported. Al2O3/water nanofluid is used with constant heat flux from three discrete heat sources. In the present study, the effects of Reynolds number (100 to 3000), particle volume frac...
متن کامل