On the online multi-agent O–D k-Canadian Traveler Problem

Davood Shiri () and F. Sibel Salman ()
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Davood Shiri: Koc University
F. Sibel Salman: Koc University

Journal of Combinatorial Optimization, 2017, vol. 34, issue 2, No 11, 453-461

Abstract: Abstract In this article, we present new results on the online multi-agent O–D k-Canadian Traveler Problem, in which there are multiple agents and an input graph with a given source node O and a destination node D together with edge costs such that at most k edges are blocked. The blocked edges are not known a priori and are not recoverable. All of the agents are initially located at O. The objective is to find an online strategy such that at least one of the agents finds a route from the initial location O to a given destination D with minimum total cost. We focus on the case where communication among the agents is limited in the sense that some travelers can both send and receive information while the others can only receive information. We formalize the definition of agents’ intelligence by specifying three levels. We introduce two online strategies which utilize higher levels of agents’ intelligence to provide updated lower bounds to this problem. We show that one of our strategies is optimal in both cases with complete and limited communication in the special case of O–D edge-disjoint graphs and highest level of agents’ intelligence.

Keywords: Multi-agent k-CTP; Online strategies; Competitive analysis; Communication; Agents’ intelligence (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (4)

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DOI: 10.1007/s10878-016-0079-8

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