I develop technological tools to help communities of children creatively solve problems as they program computers. The Hook-ups project introduces computational tools that support...
Localized search engines are small-scale systems that index a particular community on the web. They offer several benefits over their large-scale counterparts in that they are rel...
This paper describes an experiment which aims to examine the effectiveness and efficiency of a Virtual Reality Modelling Language (VRML) building model compared with equivalent ar...
Abstract. Virtual professional communities require a strong coevolution of their social and information systems. To ensure that the evolutionary process of their socio-technical sy...
With the evolution of technology, Grids cannot be considered any more solely as a federation of a modest number of powerful cluster computers. Trends show that future Grids will i...