Journal of Cloud Computing

Advances, Systems and Applications

Table 5 Linear ensemble methods example: on the left side is anomaly scores obtained by each base method; on the right side is anomaly scores obtained through ensemble methods

From: Robust and accurate performance anomaly detection and prediction for cloud applications: a novel ensemble learning-based framework

Index	IForest	KNN	LOF	OCSVM	Max	Avg	Weighted Avg
1	-0.41	-0.23	0.14	-0.88	0.14	-0.35	-0.49
2	-0.18	-0.03	0.63	-0.86	0.63	-0.11	-0.33
3	2.29	5.14	1.07	0.62	5.14	2.28	2.76
4	2.36	4.56	0.86	0.11	4.56	1.97	2.42
5	1.99	1.5	-0.3	-0.19	1.99	0.75	1.14

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