This paper describes the development of a software tool to support knowledge acquisition by means of rich pictures, for Object Oriented Analysis (OOA). Transposition of manual rich picture practise into software proved difficult, therefore we decided to follow a user-centered approach, design and implement a prototype with basic functionalities, then run a usability test with a few students and...

The ability to automatically detect ‘visually interesting’ regions in an image has many practical applications especially in the design of active machine vision systems. This paper describes a data-driven approach that uses eye tracking in tandem with principal component analysis to extract lowlevel image features that attract human gaze. Data analysis on an ensemble of image patches extracted ...

A map is at the same time a group. To represent a map (that is, a graph drawn on the sphere or on another surface) we usually use a pair of permutations on the set of the \ends" of edges. These permutations generate a group which we call a cartographic group. The main motivation for the study of the cartographic group is the so-called theory of \dessins d'enfants" of Grothendieck, which relates...

Pictures of the G2(2) hexagon and its dual are presented. A way to obtain these pictures is discussed. 1. Introduction This paper presents pictures of the two classical generalised hexagons over the eld with two elements. Information on these generalised hexagons is employed so that the pictures make some properties of these hexagons obvious. Familiarity with the theory of generalised polygons ...

Recent terrorist attacks carried out on behalf of ISIS on American and European soil by lone wolf attackers or sleeper cells remind us of the importance of understanding the dynamics of radicalization mediated by social media communication channels. In this paper, we shed light on the social media activity of a group of twenty-five thousand users whose association with ISIS online radical propa...

In this paper, we present a new shadow mapping technique that improves upon the quality of perspective and uniform shadow maps. Our technique uses a perspective transform specified in light space which allows treating all lights as directional lights and does not change the direction of the light sources. This gives all the benefits of the perspective mapping but avoids the problems inherent in...

We tend to assume that progress in answering the ‘hard question’ of consciousness will be accompanied by a subjective feeling of greater understanding. However, in order to feel we understand how one state of affairs arises from another, we have to deceive ourselves into thinking we have found a type of causal link which in reality may not exist (Rosch, 1994). I draw from and expand upon Rosch’...

With a contingent of around 1,500 fighters, Morocco is considered one of the main exporters of foreign fighters to Syria. Until 2014, Moroccan authorities, who were content to see their own jihadis leave and add to the pressure on Bashar al-Assad, mostly turned a blind eye to networks of recruitment. Since the dramatic rise of the so-called Islamic State, or ISIS, concern over local repercussio...