This article aims to redefine the concept of Thirdspace and make a trilateral relationship between the three concepts of real space, virtual space and the user. To do so, not only the concept of Thirdspace has to be redefined, but also a new understanding of virtual space as a relatively independent space is required. This three-sided relation requires a new understanding of the relationship be...

Nurse Rostering Problem (NRP) or the Nurse Scheduling Problem (NSP) is a complex scheduling problem that affects hospital personnel on a daily basis all over the world and is known to be NP-hard.The problem is to decide which members of a team of nurses should be on duty at any time, during a rostering period of, typically, one month.It is very important to efficiently utilize time and effort, ...

Introduction of data intensive multimedia and interactive services together with exponential growth of wireless applications have created a spectrum crisis. Many spectrum occupancy measurements, however, have shown that most of the allocated spectrum are used inefficiently indicating that radically new approaches are required for better utilization of spectrum. This motivates the concept of opp...

Large scale distributed applications spanning multiple domains should satisfy administrative autonomy property — allow users in a domain to control flow of information in to and out of their domains. Though DHTs offer a scalable solution for building distributed applications, they do not guarantee this property. We present a novel Autonomous DHT (ADHT) that guarantees path locality and path con...

The CmapTools program, and concept mapping in general, have seen a steady growth in usage in the last few years. With new users come new requirements and needs for the software that we can’t always satisfy. Until now, the CmapTools architecture has been relatively closed to third party developers. In this paper we report on a new open architecture, KE (Knowledge Exchange Architecture), that pro...

Automatic graphic object layout methods have long been studied in many application areas in which graphic objects should be laid out to satisfy the constraints specific to each application. In those areas, carefully designed layout algorithms should be used to satisfy each application’s constraints. However, those algorithms tend to be complicated and not reusable for other applications. Moreov...

We tackle the problem of improving microblog retrieval algorithms by proposing a Feedback Concept Model for query expansion. In particular, we expand the query using knowledge information derived from Probase so that the expanded one could better reflect users’ search intent, which allows for microblog retrieval at a concept-level, rather than termlevel. In the proposed feedback concept model: ...