A context query language for pervasive computing environments
Khan, M. U.
Papadopoulos, George Angelos
Source6th Annual IEEE International Conference on Pervasive Computing and Communications, PerCom 2008
6th Annual IEEE International Conference on Pervasive Computing and Communications, PerCom 2008
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This paper identifies requirements for querying and accessing context information in mobile and pervasive computing environments. Furthermore it studies existing query languages showing that they satisfy only a subset of these requirements or cover some of them only to a limited extent. A new context query language is presented to overcome these shortcomings, improving the state of the art in several respects: heterogeneous representations of context information, definition of complex filtering mechanisms, elaborate aggregation functions and ontology integration, all in one language. © 2008 IEEE.