OPTCLOUD: An Optimal Cloud Service Selection Framework Using QoS Correlation Lens

Table 8

Correlation coefficient between QoS attributes.

Cloud service provider	Q1	Q2	Q3	Q4	Q5	Q6	Q7	Q8
Q1	1	0.4653	−0.488	−0.5432	−0.0158	−0.1863	0.2503	−0.1696
Q2	0.4653	1	0.0668	0.9769	−0.5286	0.6952	−0.2077	−0.2102
Q3	−0.488	0.0668	1	0.0558	0.1924	0.3128	0.4909	0.1212
Q4	−0.5432	0.9769	0.0558	1	−0.4391	0.6379	−0.262	−0.1649
Q5	−0.0158	−0.5286	0.1924	−0.4391	1	−0.2252	0.5748	0.815
Q6	−0.1863	0.6952	0.3128	0.6379	−0.2252	1	−0.112	0.0534
Q7	0.2503	−0.2077	0.4909	−0.262	0.5748	−0.112	1	0.6568
Q8	−0.1696	−0.2102	0.1212	−0.1649	0.815	0.0534	0.6568	1