In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...
Portable Document Format (PDF) is a page-oriented, graphically rich format based on PostScript semantics and it is also the format interpreted by the Adobe Acrobat viewers. Althou...
Steven R. Bagley, David F. Brailsford, Matthew R. ...
We present a component-based description language for heterogeneous systems composed of several data flow processing components and a unique eventbased controller. Descriptions a...
Norms constitute a powerful coordination mechanism among heterogeneous agents. We propose means to specify and explicitly manage the normative positions of agents (permissions, pro...
Software frameworks impose constraints on how plugins may interact with them. Many of hese constraints involve multiple objects, are temporal, and depend on runtime values. Additi...