A Utility Model for Volunteered Service Composition
A Utility Model for Volunteered Service Composition
复制标题
志愿服务组合的实用模型
DOI：
10.1109/ucc.2014.43
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Peter R. Lewis
中科院分区：
文献类型：
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作者：
Abdessalam Elhabbash;Rami Bahsoon;P. Tiňo;Peter R. Lewis
志愿服务组合（VSC）是指志愿服务和资源的组合过程。这些服务通常公布于自愿资源库。该组合旨在满足一些目标（例如，利用存储和消除浪费，共享空间和优化能量，降低计算成本等）。如果一个志愿服务不能满足要求，将需要VSC。在本文中，我们贡献了三种方法组成志愿服务：这些都是详尽的，天真的和基于实用程序的搜索方法VSC。例如，拟议的新的基于效用的方法是衡量每项自愿服务可以为每项请求提供的效用，并系统地选择效用最高的服务。我们发现，基于效用的方法往往是更有效和更有效率的选择服务时，同时最大限度地减少资源浪费相比，其他两种方法。
Volunteered Service Composition (VSC) refers to the process of composing volunteered services and resources. These services are typically published to a pool of voluntary resources. The composition aims at satisfying some objectives (e.g. Utilizing storage and eliminating waste, sharing space and optimizing for energy, reducing computational cost etc.). In cases when a single volunteered service does not satisfy a request, VSC will be required. In this paper, we contribute to three approaches for composing volunteered services: these are exhaustive, naïve and utility-based search approach to VSC. The proposed new utility-based approach, for instance, is based on measuring the utility that each volunteered service can provide to each request and systematically selects the one with the highest utility. We found that the utility-based approach tend to be more effective and efficient when selecting services, while minimizing resource waste when compared to the other two approaches.