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An approach to dealing with uncertainty in context-aware pervasive systems


Clear, AK and Dobson, S and Nixon, P, An approach to dealing with uncertainty in context-aware pervasive systems, IEEE SMC UK&RI 6th Conference on Cybernetic Systems, 6-7 Sept 2007, University College Dublin, pp. 1-6. (2007) [Refereed Conference Paper]


Pervasive computing introduces complex systems consisting of many users, sensors, and applications that should react to context data, provide services, and manipulate devices in a predictable and reliable manner. Context data sensed from the environment is largely uncertain due to lack of precision and imperfect or faulty sensors. Uncertainty is generally dealt with at the level of individual context data. Due to the difficulties associated with catering for data of such fine granularity in applications, the environment can be divided into larger chunks of context called situations. Situations, comprising of finer-grained events in the form of context data, warrant a different approach to dealing with uncertainty. Furthermore, we demonstrate that the uncertainty threshold of an event that triggers a behaviour is determined by the severity of the behaviour, making this task non-trivial. In this paper we detail an approach to dealing with uncertainty at the level of situations that takes into account the severity of the behaviour that it is triggering.

Item Details

Item Type:Refereed Conference Paper
Research Division:Information and Computing Sciences
Research Group:Human-centred computing
Research Field:Pervasive computing
Objective Division:Information and Communication Services
Objective Group:Information systems, technologies and services
Objective Field:Information systems, technologies and services not elsewhere classified
UTAS Author:Nixon, P (Professor Paddy Nixon)
ID Code:69484
Year Published:2007
Deposited By:Research Division
Deposited On:2011-04-20
Last Modified:2015-06-22

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