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Forming coalition structures allows agents to join their forces with the aim to achieve a common task. We suggest it would be interesting to look for homogeneous groups which follow distinct <i>lines of thought</i>. For this reason, we extend the Dung Argumentation Framework in order to deal with coalitions of arguments. The initial set of arguments is(More)
We present a fine-grained security model to enforce the access control on the constraint store in Concurrent Constraint Programming (CCP) languages. We show the model for a nonmonotonic version of Soft CCP (SCCP), that is an extension of CCP which deals with soft constraints, which are constraints that have a preference level associated to them. In the(More)
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