caa a22 4500 606228853 CHVBK 20210128101205.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10796-013-9432-y doi (NATIONALLICENCE)springer-10.1007/s10796-013-9432-y Adaptive and similarity-based tradeoff algorithms in a price-timeslot-QoS negotiation system to establish cloud SLAs [Elektronische Daten] [Seokho Son, Kwang Sim] Since participants in a Cloud may be independent bodies, some mechanisms are necessary for resolving the different preferences to establish a service-level agreement (SLA) for Cloud service reservations. Whereas there are some mechanisms for supporting SLA negotiation, there is little or no negotiation support involving price, time slot, and QoS issues concurrently for a Cloud service reservation. For the concurrent price, timeslot, and QoS negotiation, a tradeoff algorithm to generate and evaluate a proposal which consists of price, timeslot, and QoS proposals is necessary. The contribution of this work is designing a multi-issue negotiation mechanism to facilitate 1) concurrent price, time slot, and QoS negotiations including the design of QoS utility functions and 2) adaptive and similarity-based trade-off proposals for price, time slots, and level of QoS issues. The tradeoff algorithm referred to as "adaptive burst mode” is especially designed to increase negotiation speed, total utility, and to reduce computational load for evaluating proposals by adaptively generating concurrent set of proposals. The empirical results obtained from simulations carried out using an agent-based testbed suggest that using the negotiation mechanism, (i) a consumer and a provider agent have a mutually satisfying agreement on price, time slot, and QoS issues in terms of the aggregated utility and (ii) the fastest negotiation speed with (iii) comparatively lower number of evaluated proposals in a negotiation. Springer Science+Business Media New York, 2013 Cost-models and economics of grid/cloud computing nationallicence Agent-based cloud computing nationallicence Service level agreement nationallicence Multi-issue negotiation nationallicence Cloud service reservation nationallicence QoS negotiation nationallicence Son Seokho Department of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, 500-712, Gwangju, Republic of Korea aut Sim Kwang School of Computing, The University of Kent, Chatham Maritime, ME4 4AG, Kent, UK aut Information Systems Frontiers Springer US; http://www.springer-ny.com 17/3(2015-06-01), 565-589 1387-3326 17:3<565 2015 17 10796 https://doi.org/10.1007/s10796-013-9432-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10796-013-9432-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Son Seokho Department of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, 500-712, Gwangju, Republic of Korea aut NATIONALLICENCE 700 1- Sim Kwang School of Computing, The University of Kent, Chatham Maritime, ME4 4AG, Kent, UK aut NATIONALLICENCE 773 0- Information Systems Frontiers Springer US; http://www.springer-ny.com 17/3(2015-06-01), 565-589 1387-3326 17:3<565 2015 17 10796