This paper reports three experiments that attempted to answer questions about the conditions under which brightness assimilation and brightness contrast are obtained. Brightness assimilation was found only under circumstances in which the gray portion of the visual display-the gray portion being compared with some other standard gray--was not the focus of attention. When attention was focused o...

Results are the most important factor in competitive sports. If we can scientifically predict race results, it is bound to become a research focus of the sports competitions. In this paper, we use the gray prediction method and neural network theory to establish two prediction results model. Numerical experiments show that the model has high prediction accuracy.

This paper presents models of ultimate ruin theory in the form of 1st order integro-differential equations and systems of such equations (cf. Albrecher and Boxma (2004), Dickson and Gray (1984), Lin, Willmot and Drekic (2003)), and gives some numerical results obtained from the direct solution of one of them (Albrecher and Boxma (2004)).

The purpose of resent research is to analysis and compares performance evaluation models of selected investment companies in Tehran Stock Exchange Market in the field of their portfolio management. The duration of research was between years 2009-2014. Statistical society the research is consisting of all active investment companies in in Tehran Stock Exchange Market which were 30 companies. Vol...

We propose an object recognition scheme based on a method for feature extraction from gray level images that corresponds to recent statistical theory, called projection pursuit, and is derived from a biologically motivated feature extracting neuron. To evaluate the performance of this method we use a set of very detailed psychophysical 3D object recognition experiments (B ulthoo and Edelman, 19...

We propose an object recognition scheme based on a method for feature extraction from gray level images that corresponds to recent statistical theory, called pmjection pursuit, and is derived from a biologically motivated feature extracting neuron. To evaluate the performance of this method we use a set of very detailed psychophysical three-dimensional object recognition experiments (Biilthoff ...

The paper provides a method of topological analysis of gray scale images and other images with parameters. The main goal is to count objects in the image and extract them without image segmentation. The approach is simple and context independent. The method is based on algebraic topology, the mathematical theory responsible for these issues.