TV White Spaces have recently been proposed as an alternative to alleviate the spectrum crunch, characterised by the need to reallocate frequency bands to accommodate the ever-growing demand for wireless communications. In this paper, we discuss the motivations and challenges for collecting spectrum measurements in developing regions and discuss a scalable system for communities to gather and p...

University campuses are busy places for wireless client traffic coming from Wi-Fi connections and other wireless devices that contend for the 2.4 GHz frequencies space that most campus Wi-Fi networks use currently. This is making the 2.4 GHz frequency unsuitable for WiFi connection due to too much interference from other devices as well as from Wi-Fi connections themselves. TV white space could...

Critical Discourse Analysis (CDA) is a multidisciplinary holistic, consisting of a number of different theoretical approaches to the microlevel analysis of text and talk that has to do with the social and/or political. These various methodological approaches are unified, however, by a macrolevel social critique which maintains that social inequality may be enacted, sustained and legitimised thr...

Computed tomography of 30 patients presenting acutely with benign intracranial hypertension was compared with that of 30 normal controls matched for age and sex. Qualitative and quantitative assessments showed smaller cranial CSF spaces in the cases of benign intracranial hypertension, suggesting that cerebral swelling is involved in the pathogenesis of benign intracranial hypertension.

In an emergency situation shelter space is crucial for people affected by natural hazards. Emergency planners in disaster relief and mass care can greatly benefit from a sound methodology that identifies suitable shelter areas and sites where shelter services need to be improved. A methodology to rank suitability of open spaces for contingency planning and placement of shelter in the immediate ...

Statistical learning has become a central theme in computational studies of intelligence, with important but largely independent developments in perceptual tasks like object recognition and in conceptual reasoning (Mitchell (1997)). Typically, the former involves clustering and regression over quantitative representations based on real linear spaces ( n R ), whereas the latter involves symbolic...

We propose a dialectical argumentation formalism for qualitative reasoning under uncertainty in a context of alternative scenarios. Our formalism extends prior work representing knowledge uncertainty using dialectical argumentation in participant interaction spaces called Agoras. We define the notion of a scenario in this framework and consider its formal properties. In particular, we ask when ...