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Agent-Mediated Electronic Commerce III: Current Issues in by Gustavo E. de Paula, Francisco S. Ramos, Geber L. Ramalho PDF

By Gustavo E. de Paula, Francisco S. Ramos, Geber L. Ramalho (auth.), Frank Dignum, Ulises Cortés (eds.)

ISBN-10: 3540417494

ISBN-13: 9783540417491

ISBN-10: 3540447237

ISBN-13: 9783540447238

In this publication we current a suite of papers round the subject of Agent-Mediated digital trade. many of the papers originate from the 3rd workshop on Agent{Mediated digital trade held along side the self sustaining brokers convention in June 2000. After past workshops, one throughout the self sufficient brokers convention in 1998 in Minneapolis and the second at the side of the foreign Joint convention On Arti cial Intelligence in 1999, this workshop persisted the culture of the former ones via surroundings the scene for the overview of the demanding situations that Agent-Mediated digital trade faces in addition to the possibilities it creates. by means of targeting age- mediated interactions, experts from di erent disciplines have been introduced jointly who give a contribution theoretical and alertness views within the narrowly concentrated subject that however contains extensive ranging issues corresponding to: agent architec- res, institutionalization, fiscal conception, modeling, felony frameworks and coverage instructions. the most themes for the workshop have been: { digital negotiation types for brokers { Formal matters for brokers that function in digital industry areas { digital buying and selling associations and systems { buying and selling innovations for interrelated transactions (respectively auctions) The workshop got 12 submissions of which 7 have been chosen for ebook during this quantity. even though the variety of submissions was once much less then anticipated for a big region like agent-mediated digital trade there is not any cause to fret that this sector doesn't get adequate realization from the agent community.

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Extra info for Agent-Mediated Electronic Commerce III: Current Issues in Agent-Based Electronic Commerce Systems

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E. x= Ix j . , p 2 The parties may have private decision variables that are not the issues of negotiation and/or may become the negotiation issues. e. x = X . 34 • R. Kowalczyk and V. e. x i ∈ Di . Each party can have private (and different) domains for the variables including the issues of negotiation. e. , p constraints between the variables of the j party. A constraint Ckj , k = 1,K, m j , th j = 1, K, p relation C kj { } relating a subset of the variables x i1j , K , xilj ⊆ x j is defined as a (x i1 , K , j j x il ) on the Cartesian product space D j i1 ×K × Dilj representing a set of assignments to the variables that satisfy the constraints.

Section 2 defines a constraint-based representation of negotiation as a distributed CSP. Section 3 presents some aspects of constraint-based mechanisms of negotiation used by the eNAs agents. An overview of the eNAs system demonstrator is given in section 4. Section 5 presents some implementation aspects and the results of some comparative experiments for selected trading situations with a combination of different negotiation strategies. Finally the concluding remarks and an outline of future work are presented in section 6.

Table 6. Single-issue negotiation results Seller Take-it-orleave-it Buyer Take-it-or-leaveit Fixed concession Fixed concession better deal Simple concession Simple concession better deal No concession Average Fixed concession No deal No deal Fixed concession better deal No deal Simple concession No concession Average No deal Simple concession better deal No deal No deal No deal No deal No deal 15488 14288 15488 14288 15488 14310 15488 14310 14310 14310 15252 14301 No deal 14468 15551 14468 15522 14468 14895 No deal 14468 15551 14468 15522 14468 14895 No deal No deal 15488 14840 15488 15273 15488 14844 15488 15266 No deal 14389 15488 From the above results it can be observed that the seller agent works best with both of the better-deal strategies while buyer agent can benefit the most with the fixed concession better-deal strategy in this specific trading scenario.

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Agent-Mediated Electronic Commerce III: Current Issues in Agent-Based Electronic Commerce Systems by Gustavo E. de Paula, Francisco S. Ramos, Geber L. Ramalho (auth.), Frank Dignum, Ulises Cortés (eds.)


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