Introduction Context Spaces Agreement Concepts Agreement-Related Interaction Protocols Using Agreement Spaces for Mediators Example Conclusions Achieving Mediated Agreements Using Agreement Space Modeling C. Carrascosa and M. Rebollo Univ. Politécnica de Valencia (Spain) Workshop on Agreement Technologies November 2009, Sevilla Carrascosa & Rebollo Achieving Mediated Agreements. . .
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Achieving Mediated Agreements Using Agreement Spaces
Slides used in the Workshop of Agreement Technologies (WAT'09). Sevilla (Spain)
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Agreement DefinitionAgreement ProcessAgreement Space
Agreement Space
Definition (Agreement Discourse Space (ADS))
The Agreement Discourse Space of an agreement Ag ADS(Ag) isdefined by considering as a dimension (in an Euclidean space) eachconcept included in an Agreement Discourse Universe of anagreement Ag. That is, the ADS(Ag) is an n-dimensional space,where n is the cardinality of the ADU(Ag)
Agreement DefinitionAgreement ProcessAgreement Space
Agreement Space
Definition (Agreement Space))
It is a projection of the Agreement Discourse Space onto thedimensions defining the agreement. That is, this space will bedefined by the features the different entities Ei making theagreement are going to negotiate (Cx), each one of such featuresdefining a dimension in this space (∀i : di ∈ dim(Ei ,Ag)).
The final result is the definition of the Agreement Space, modeledas a hyperpolyhedron formed by all accepted constraints(agreement terms). During the execution of the agreement, allinteractions have to be inside this space as the participants haveagreed.
Let it be a set of agents interested in taking piano classes. Thegroup is formed by one teacher and two students. They agree tonegotiate over three dimensions: the number of classes (n), itsduration (d) and its price (p).
Teacher
at least 10 classes: n ≥ 10
duration between 60 and 120 min: d ≥ 60 and d ≤ 120
Agent Mess Param Agent Mess Param1 C inform n, d ,p 16 C accept n ≤ 202 C call-for-terms 17 C call-for-terms3 T inform n ≥ 10 18 S2 inform d ≥ 454 C accept n ≥ 10 19 C reject d ≥ 455 C call-for-terms 20 C call-for-terms6 S1 inform p ≤ 30 21 T inform d ≤ 1207 C accept p ≤ 30 22 C accept d ≤ 1208 C call-for-terms 23 C call-for-terms9 S2 inform n ≥ 15 24 T inform p ≥ 2010 C accept n ≥ 15 25 C accept p ≥ 2011 C call-for-terms 26 C call-for-terms12 T inform d ≥ 60 27 S2 inform d ≤ 9013 C accept d ≥ 60 28 C accept d ≤ 9014 C call-for-terms 29 C inform-done15 S1 inform n ≤ 20