Hierarchical Task Network Planning with Common-Sense Reasoning for Multiple-People Behaviour Analysis

Safety on public transport is a major concern for the relevant authorities. We
address this issue by proposing an automated surveillance platform which combines data from video, infrared and pressure sensors. Data homogenisation and integration is achieved by a distributed architecture based on communication middleware that resolves interconnection issues, thereby enabling data modelling. A common-sense knowledge base models and encodes knowledge about public-transport platforms and the actions and activities of passengers. Trajectory data from passengers is modelled as a time-series of human activities. Common-sense knowledge and rules are then applied to detect inconsistencies or errors in the data interpretation. Lastly, the rationality that characterises human behaviour is also captured here through a bottom-up Hierarchical Task Network planner that, along with common-sense, corrects misinterpretations to explain passenger behaviour. The system is validated using a simulated bus saloon scenario as a case-study. Eighteen video sequences were recorded with up to six passengers. Four metrics were used to evaluate performance. The system, with an accuracy greater than 90% for each of the four metrics, was found to outperform a rule-base system and a system containing planning alone.

Islamismo e terrore: un grande Jihad contro il senso comune (essay)

What implies the conversion to fundamentalist Islam? What are the repercussions and implications of ‘political Islam’ in specific contexts? The relation between Islam, democracy and violence is often represented in a reductive or simplistic way. In order to contribute to a reasoned debate on these pressing questions, this essay covers some key dynamics stemming from long-term ethnographic observation regarding the conversion to neo Salafism among Arab Bedouin citizens in southern Israel, placing them in the context of contemporary developments of Islamic political thought. The ethnographic sensitivity, combined with the voices of some eminent Islamic intellectuals, allows to go beyond both the rhetoric of cultural complexity and the common-sense view that Islamic terrorism would be a kind of ‘anti imperialism of the losers’, arguments employed often to contest emerging neo-orientalist discourses. In this sense, the essay states the need to shed light on coordinates and interpretative categories that are not placed in an essentially different but in often unexpected ways.