Terrorist groups use the Web as their infrastructure for various purposes. One example is the forming of new local cells that may later become active and perform acts of terror. The Advanced Terrorist Detection System (ATDS), is aimed at tracking down online access to abnormal content, which may include terrorist-generated sites, by analyzing the content of information accessed by the Web users...

Setting up virtual, Web based courses has become very popular among teachers recently. Still, most of them are not familiar with the proper implementation of training material for the Web. This was, at least in parts, also true for the authors of this paper. In this paper a comprehensive course construction concept using novel Web technologies is proposed, featuring simplicity and practicabilit...

The annotation of web pages, and the possibility to share the notes with others, seems to be a powerful tool. Although several tools already provide such possibility, they are not as widely popular as one would expect them to be. We try to explain this fact, and propose a novel architectural approach that is, in our view, particularly suited to some particular domain such as e-learning. We also...

We perform a large-scale analysis of third-party trackers on the World Wide Web. We extract third-party embeddings from more than 3.5 billion web pages of the CommonCrawl 2012 corpus, and aggregate those to a dataset representing more than 41 million domains. With that, we study global online tracking on two levels: (1) On a global level, we give a precise figure for the extent of tracking, and...

At the beginning of 1998, Griffith University opened a new campus in Logan. In order to provide a breadth of study opportunities, and to expand access opportunities to those who are unable to attend the campus regularly, the University offers subjects at Logan through flexible modes of delivery. The Logan teaching and learning environment includes a range of approaches to flexible learning. In ...

Real-world networks may exhibit detachment phenomenon determined by the cancelling of previously existing connections. We discuss a tractable extension of Yule model to account for this feature. Analytical results are derived and discussed both asymptotically and for a finite number of links. Comparison with the original model is performed in the supercritical case. The first-order asymptotic t...

For many years now our research team has been involved in an effort (both theoretical and technological) that can be labeled as an attempt to investigate the notion of cooperation from the 'participation' or 'contribution' perspective. From our perspective, it encompasses a set of situations in which different actors identified or unidentified, ratified or not, distributed in space and time, co...

The bandwidth demands of the World Wide Web continue to grow at a hyper-exponential rate. Given this rocketing growth, caching of web objects as a means to reduce network bandwidth consumption is likely to be a necessity in the very near future. Unfortunately, many Web caches do not satisfactorily maintain cache consistency. This paper presents a survey of contemporary cache consistency mechani...

The World Wide Web (the Web) is the main driving force behind the rapid diffusion of Internet technology. As a result, we are beginning to live a significant part of our lives in Cyberspace. Measuring and monitoring our surroundings is an essential human activity that helps us both to understand and shape the world we live in. Substantial efforts have in the past years been invested into furthe...