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Lightweight approach for multi-objective web service composition

机译:用于多目标Web服务组合的轻量级方法

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摘要

Service composition is an efficient way to implement a service of complex business process in heterogeneous environment. Existing service selection methods mainly utilise fitness function or constraint technique to convert multiple objectives service composition problems to single objective ones. These methods need to take effect with priori knowledge of problem's solution space. Besides, in each execution only one solution can be obtained, hence, users can hardly acquire evenly distributed solutions with acceptable computation cost. The authors also propose a lightweight particle swarm optimisation service selection algorithm for multi-objective service composition problems. Simulation results illustrate that the proposed algorithm surpasses the comparative algorithm in approximation, coverage and execution time.
机译:服务组合是在异构环境中实现复杂业务流程服务的有效方法。现有的服务选择方法主要利用适应度函数或约束技术将多目标服务组合问题转换为单目标问题。这些方法必须先解决问题的解决空间,然后才能生效。此外,在每次执行中只能获得一个解决方案,因此,用户很难以可接受的计算成本获得均匀分布的解决方案。作者还提出了一种针对多目标服务组合问题的轻量级粒子群优化服务选择算法。仿真结果表明,该算法在逼近,覆盖和执行时间上均优于比较算法。

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