Research Article
Data Placement for Privacy-Aware Applications over Big Data in Hybrid Clouds
Table 1
Key terms and descriptions for cost, access time, and energy analysis in hybrid cloud.
| Notation | Description |
| | All the available VM instances | | mth VM in | | The dataset need to be placed | | ā dataset in D | | The binary variable to judge whether is placed on | | The data access time for extracting the | | The tasks need to be performed, | | nth task in T | | The binary variable to judge whether is place on | | The time cost for the task to extract the dataset | | The binary variable to judge whether is on public cloud | | The total access time of public datasets | | The access time for obtaining the datasets in private cloud | | The baseline power consumed by the active PMs | | The power consumed by the active VMs is calculated by | | The power consumed by the VMs in the idle mode | | The power consumed by the switches due to data access | | The total power consumption to perform the tasks |
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