Simulated Cloud Service QoS Dataset

The dataset used for this simulation experiments were based on SMI attributes. The data values were synthesised based on examples from previous evaluation studies and related papers on cloud service selection that revealed acceptable data formats for quantitative attributes such as response time, cost, and availability. We generated random qualifier values for the other qualitative attributes, which are usability, security, and flexibility. Consequently, we used a total of six QoS attributes. For simplicity, we limited the qualifier values for usability, security, and flexibility to high, medium and low. We simulated multiple instances of the adopted format for the six attributes in order to obtain a dataset comprising a total of 63 services.

本次仿真实验所采用的数据集基于 SMI 属性构建。数据值是基于先前评估研究及相关云服务选择论文中的示例进行合成，这些论文揭示了诸如响应时间、成本和可用性等定量属性的可接受数据格式。对于其他定性属性，如可用性、安全性和灵活性，我们生成了随机的评价值。因此，我们共使用了六个 QoS（服务质量）属性。为简化起见，我们将可用性、安全性和灵活性的评价值限制为高、中、低三个等级。我们模拟了六个属性采用格式的多个实例，以获取包含总计 63 个服务的完整数据集。