The authors of this paper aimed to emphasize the ways in which the managers’ decision making is strongly influenced by several categories of stressful factors. In order to obtain as lifelike information as possible, we created a questionnaire which allows to obtain a correct evaluation of managers’ behaviour – and not only – for certain categories in the educational environment (undergraduate a...

In this position paper we examine the various risks in component-based development. We divide the risks into six main categories and argue that they not only overlap but also cut across the various application development stages. We propose a risk management mechanism based on identifying risk management techniques for each individual risk category and then integrating the various individual te...

A very natural approach to categorization is similaritybased clustering. We propose a visual representation which can be used with such a mechanism for the acquisition of spatial relation categories. We also show how supervision can be helpful in cases where basic similarity is low by proposing a learning mechanism which operates both in the presence and in the absence of words.

When we perceive a visual object, we implicitly or explicitly associate it with a category we know. It is known that the visual system can use local, informative image fragments of a given object, rather than the whole object, to classify it into a familiar category. How we acquire informative fragments has remained unclear. Here, we show that human observers acquire informative fragments durin...

In this work we present a speaker verification system based on 4 broad phonetic categories: vowels+diphthongs, fricatives, glides+nasals, and silence+stops. Using these categories separately, it is observed that vowels, diphthongs, and fricatives are the most important categories for speaker verification. This observation confirms the results from the analysis of speaker and channel variability...