Applying Catastrophe Theory for Network Anomaly Detection in Cloud Computing Traffic

Table 4

Comparison of processing time in calculating randomness for each day in train weeks.

Weeks include train data▶	W1	W1	W1	W1	W1	W3	W3	W3	W3	W3
Execution time of Xiong et al. Randomness algorithm [sec]	0.091	0.068	0.083	0.083	0.105	0.087	0.098	0.097	0.094	0.091
Execution time of our Randomness algorithm [sec]	0.045	0.05	0.036	0.039	0.042	0.047	0.049	0.053	0.054	0.057
Differences between two time [sec]	0.046	0.018	0.047	0.044	0.063	0.04	0.049	0.044	0.04	0.034
Improvement percentage (%)	50.55	26.47	56.63	53.01	60.00	45.98	50.00	45.36	42.55	37.36