As the information flowing around in social network systems is mainly related or can be attributed to their users, controlling access to such information by individual users becomes a crucial requirement. The intricate semantic relations among data objects, different users, and between data objects and users further add to the complexity of access control needs. In this paper, we propose an acc...

Our research proposes and demonstrates with a prototype system an automated aid for animators in presenting their ideas and intentions using the large range of techniques available in cinematography. An experienced animator can use techniques far more expressive than the simple presentation of spatial arrangements. They can use effects and idioms such as framing, pacing, colour selection, light...

There are several web platforms that people use to interact and exchange ideas, such as social networks like Facebook [2], Twitter [11], and Google+ [4]; Q&A sites like Quora and Yahoo! Answers; and myriad independent fora. However, there is a scarcity of platforms that facilitate discussion of complex subjects where people with divergent views can easily rationalize their points of view using ...

The neglect of administrative issues is a serious limitation of optimal tax theory, with implications for its practical applicability. We focus on an important class of administrative problems, namely that the tax bases are measured with some error. We also consider the full set of tax instruments. We find that consumption taxes can perform the ‘social insurance role of taxation’, a role previo...

This paper attempts to review the state of social science research on population and development relationships in. the Philippines with the aim of: (I) taking stock of what we know about such relationships as a guide to development planning, and (2) providing a basis for formulating recomII)endations to guide future research on the topic. The many population-related studies by independent inves...

In this paper we explain our project of establishing a barometer to capture the actual state of digital leadership in small and medium enterprises (SME) in Switzerland. Drawing on leadership and digitalization literature, we define an ontological frame of leadership that is adequate to consider the social characteristics of digitalization (e.g., enhanced team cooperation). Subsequently, four ce...

In the social network of a web-based online game, all players are not equal. Through network analysis, we show that the community of players in a online social game is an example of a scale free small world network and that the growth of the player-base obeys a power law. The community is centred around a minority group of “hardcore” players who define the social environment for the game, and w...

A Schauder basis (xn) of a Banach space X is said to be lower [upper] semi-homogeneous if every normalized block basic sequence of (xn) dominates [is dominated by] the basis. We show that the unit vector basis of a separable Orlicz sequence space `M , with M(1) = 1 is lower [upper] semihomogeneous if and only if M fulfils some kind of super[sub]-multiplicative inequality on the interval[0, 1]. ...

In 1997 the World Bank’s two vice-presidents for Sub-Saharan Africa attributed a significant improvement in Africa’s growth prospects to the advent of a new generation of leaders, replacing their “once largely statist and corrupt” predecessors. This paper begins by tracing the evolution of African chief executives over the past two decades. Of 48 holding office on 1 January 1999, 22 were in pow...

Human History, is a huge mesh of interrelated facts and concepts, spanning beyond borders, encompassing global aspects and finally constituting a shared, global experience. This is especially the case regarding European history, which is highly interconnected by nature; however, most History-related experiences that are today offered to the greater public, from schools to museums, are siloed. T...