The purpose of this paper is to investigate whether neural networks and, especially the Kohonen’s self-organizing map network, can be used in profitability analysis in distribution. We focus on the physical distribution part of the supply chain and build a neural network model a profitability map using shipment data from a large company. We show how the profitability map can be used in an effic...

A uni ed framework of representing and acquiring maps is discussed. In the framework, maps are represented by a hierarchically structured probability distribution of sensory-motor signals, and the map learning problem is formulated as an estimation process of the distribution. Some of map learning methods proposed so far are interpreted in the general framework. A novel map learning scheme whic...

In this paper, we present a Stationary Wavelet Transform (SWT) based method for the purpose of despeckling the Synthetic Aperture radar (SAR) images by applying a maximum a posteriori probability (MAP) condition to estimate the noise free wavelet coefficients. A MAP Estimator is designed for this purpose which uses Rayleigh distribution for modeling the speckle noise and Laplacian distribution ...

Groundwater, a special hydrological variable and freshwater resource is completely inter-reliant with hydro-metorological, topographic, land use and hydro-geological components of hydrologic cycle. Trend of hydrologic componentsfor future prediction is attempted to confer in this study using Man-Kendall test, linear regression and geometric progression analysis on recorded data collected from r...

this study aimed to evaluate the potential of image ratioing techniques to detect and map the extent and particle composition of sand dunes in the erg of gavkhouni in isfahan province. the 6/4 ratio index and also a new index called sadi which was calculated using landsat band 3, 6 and 7 were applied to a georeferenced landsat tm image. to evaluate the performance of ratio techniques, the extra...

We demonstrate that the Plancherel transform for Type-I groups provides one with a natural, unified perspective for the generalized continuous wavelet transform, on the one hand, and for a class of Wigner functions, on the other. The wavelet transform of a signal is an L2-function on an appropriately chosen group while the Wigner function is defined on a coadjoint orbit of the group and serves ...

In this article the collection of specimens related to Onosma sulaimanica from Kordestan Province, Iran, was confirmed and reported for the first time. Therefore, the species is recorded for the flora of Iran. This species is placed in the sect. Onosma, subsect. Onosma, ser. Wheeler-hainesii. A diagnostic key of related taxa belonging to series Wheeler-Hainesii and Aleppica, and the photos, mic...

Abstract. We study the time evolution of the quantum-classical correspondence (QCC) for the well known model of quantised perturbed cat maps on the torus in the very specific regime of semi-classically small perturbations. The quality of the QCC is measured by the overlap of classical phase-space density and corresponding Wigner function of the quantum system called quantum-classical fidelity (...

Knowledge structures are often represented in the form of networks or maps of concepts. The coherence and connectivity of such knowledge representations is known to be closely related to knowledge production, acquisition and processing. In this study we use network theory in making the clustering and cohesion of concept maps measurable, and show how the distribution of these properties can be i...

For each positive integer d, we present a bijection between the set of planar maps of girth d inside a d-gon and a set of decorated plane trees. The bijection has the property that each face of degree k in the map corresponds to a vertex of degree k in the tree, so that maps of girth d can be counted according to the degree distribution of their faces. More precisely, we obtain for each integer...