This paper describes a tool prototype named as Land Use Change Explorer, which was developed to allow different users to generate "GKD process tracking” (discovering land use change patterns) and “GKD process steering" (understanding uncertainty in these patterns as the process unfolds). The Land Use Change Explorer was implemented based on the GeoInsignt approach, previously described in Wacho...

The great success of the Rossi X-Ray Timing Explorer (RXTE) has shown that X-ray timing is an excellent tool for the study of strong gravitational fields and the measurement of fundamental physical properties of black holes and neutron stars. Here, we describe a next-generation X-ray timing mission, the Relativistic Astrophysics Explorer (RAE), designed to fit within the envelope of a medium-si...

Some tests of fundamental physics the equation of state at supra-nuclear densities, the metric in strong gravity, the effect of magnetic fields above the quantum critical value can only be measured using compact astrophysical objects: neutron stars and black holes. The Extreme Physics Explorer is a modest sized (∼500 kg) mission that would carry a high resolution (R ∼300) X-ray spectrometer and...

We study the strategic considerations of miners participating in the bitcoin’s protocol. We formulate and study the stochastic game that underlies these strategic considerations. The miners collectively build a tree of blocks, and they are paid when they create (mine) a node which will end up in the path of the tree that is adopted by all. Since the miners can hide newly mined nodes, they play ...

This paper investigates the extent to which a mobile data source can be utilised to generate new information intelligence for decision-making in smart city planning processes. In this regard, the Mobility Explorer framework is introduced and applied to the City of Vienna (Austria) by using anonymised mobile phone data from a mobile phone service provider. This framework identifies five necessar...

We present WiBi Explorer, a new Web application developed in our laboratory for visualizing and exploring the bitaxonomy of Wikipedia, that is, a taxonomy over Wikipedia articles aligned to a taxonomy over Wikipedia categories. The application also enables users to explore and convert the taxonomic information into RDF format. The system is publicly accessible at wibitaxonomy.org and all the da...

The Advanced Composition Explorer was launched August 25, 1997 carrying six high resolution spectrometers that measure the elemental, isotopic, and ionic charge state composition of nuclei from H to Ni (1 Z 28) from solar wind energies ( 1 keV/nuc) to galactic cosmic ray energies ( 500 MeV/nuc). Data from these instruments is being used to measure and compare the elemental and isotopic composit...

Reporting and resolving issues is an essential part of software development. This is accomplished primarily by volunteers in OSS projects and by service providers in commercial projects. Project environment often changes, e.g., the number of users may increase, and, to be successful, the projects develop new practices to cope with changes. We want to understand how the issue resolution practice...

Literature on bilingualism and cognition is characterised by a large amount of conflicting evidence. In some studies, bilinguals perform better then monolinguals on executive tasks involving inhibition, monitoring and switching but are slower on tasks of lexical processing. Other studies don’t find any significant effects and challenge the very existence of cognitive differences between monolin...