2011 IEEE International Conference on Web Services 2011
DOI: 10.1109/icws.2011.60
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Efficient Heuristic Approach with Improved Time Complexity for Qos-Aware Service Composition

Abstract: Service-Oriented Architecture enables the composition of loosely coupled services provided with varying Quality of Service (QoS) levels. Given a composition, finding the set of services that optimizes some QoS attributes under given QoS constraints has been shown to be NP-hard. Therefore, heuristic algorithms are widely used, finding acceptable solutions in polynomial time. Still the time complexity of such algorithms can be prohibitive for real-time use, especially if the algorithms are required to run until … Show more

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Cited by 45 publications
(22 citation statements)
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References 15 publications
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“…Process [74], [110], [106], [210], [50], [67], [206], [131], [196], [114], [97], [180], [100], [22], [113], [38], [168], [197], [181], [79], [109], [58], [70], [190], [44], [16], [80], [91], [84], [78], [159], [4], [129], [215], [147], [82], [68], [19], [28], [42], [60], [63], [86], [98], [115], [117], [119], [179], [216], [212], …”
Section: Dimension Referencesunclassified
See 1 more Smart Citation
“…Process [74], [110], [106], [210], [50], [67], [206], [131], [196], [114], [97], [180], [100], [22], [113], [38], [168], [197], [181], [79], [109], [58], [70], [190], [44], [16], [80], [91], [84], [78], [159], [4], [129], [215], [147], [82], [68], [19], [28], [42], [60], [63], [86], [98], [115], [117], [119], [179], [216], [212], …”
Section: Dimension Referencesunclassified
“…SOC [198], [105], [47], [36], [131], [39], [145], [38], [197], [58], [142], [183], [91], [10], [4], [215], [120], [19], [21], [31], [45], [189], [212], [158], [1], [174], [164], [188], [191].…”
Section: Dimension Referencesunclassified
“…Others works [6] [19], [20] propose end-to-end QoS optimization computation assuming that a certain path will be better executed than others according to the probability of paths execution. For example method [6], proposes a universal model coupled with a branch and bound algorithm, but the convergence of the algorithm is not always possible.…”
Section: Related Workmentioning
confidence: 99%
“…Hence, the work in [7], proposes a heuristic technique based on a genetic algorithm to resolve the QoSbased service composition, which introduces interesting modifications, whether in crossover, mutation and selection phases in order to escape from local optimums and to expedite algorithm to deliver results in a timely manner. Otherwise, methods [18] and [19], propose a solution based on the genetic algorithm, within which Tabu search is used to generate neighbor plans and simulated annealing is applied for accepting or refusing the neighbor plan. Method [17] proposes a combination of the ant colony algorithm and the genetic algorithm, which transforms the problem of selecting optimal execution path for composite web service into a selection of the optimal path in the weighted directed acyclic graph.…”
Section: Related Workmentioning
confidence: 99%
“…Klein et al [26] used linear programming techniques to provide a set of probabilistic service selection policies to chose services at runtime. However, their approach requires runtime information, they are focused on a long-term optimization, and they assume that services can be chosen automatically.…”
Section: Related Workmentioning
confidence: 99%