A variety of modifications have been employed to learning vector quantization (LVQ) algorithms using either crisp or soft windows for selection of data. Although these schemes have been shown in practice to improve performance, a theoretical study on the influence of windows has so far been limited. Here we rigorously analyze the influence of windows in a controlled environment of gaussian mixt...

A new ASIC capable of computing rank order "lters, weighted rank order "lters, standard erosion and dilation, soft erosion and dilation, order statistic soft erosion and dilation, fuzzy erosion and dilation and fuzzy soft erosion and dilation is presented in this paper. Its function is based on local histogram and a successive approximation technique and performs on 3]3-pixel image windows. The...

One of the practical beneets of the relational model is the fusion of both schema and data in the same compact tabular representation. We endeavour to take advantage of this feature in a general visual framework for viewing structured objects in a class hierarchy. The problem is the multitude of dimensions to be shown, instead of the simple set of at tuples, characteristic of the relational mod...

A description of Real Properties is of interest in connection with Location-Based Services and urban resource management. The advent of Internet-maps and location aware Web-search inspires the development of such descriptions to be developed automatically and at very little incremental cost from aerial photography and its associated data products. Very important on each real property are its bu...

We propose a metric for determining whether one version of a system is more secure than another with respect to a fixed set of dimensions. Rather than count bugs at the code level or count vulnerability reports at the system level, we count a system’s attack opportunities. We use this count as an indication of the system’s “attackability,” likelihood that it will be successfully attacked. We de...

The aim of this paper is to provide a thinking road-map and practical guide researchers practitioners working on hierarchical forecasting problems. Evaluating the performance forecasts comes with new challenges stemming from both structure hierarchy application context. We discuss several relevant dimensions for analysts: scale units time series, issue intermittency, forecast horizon, importanc...

The purpose of this study is to identify several areas of forensic interest within the Yahoo! Messenger application, which are of forensic significance. This study focuses on new areas of interest within the file structure of Windows Vista and Windows 7. One of the main issues with this topic is that little research has been previously conducted on the new Windows platforms. Previously conducte...