Are our clone detectors good enough? An empirical study of code effects by obfuscation

Cybersecurity

Table 4 The change of the detection rate of the clone detectors under the impact of strategies of Radon

Tools	Basic Strategy (%)					2-Combined (%)										3-Combined (%)				4-Combined (%)
Tools	IR	NCO	SCE	ISC	CFO	IR_NCO	IR_SCE	IR_ISC	IR_CFO	NCO_SCE	NCO_ISC	NCO_CFO	SCE_ISC	SCE_CFO	ISC_CFO	IR_NCO_ISC	IR_NCO_CFO	IR_ISC_CFO	NCO_ISC_CFO	IR_NCO_ISC_CFO
SDD	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CCFinder	60	60	49	2	100	74	75	50	100	100	49	100	31	100	100	74	100	100	100	100
CCAligner	11	36	19	10	93	38	14	11	93	55	36	93	13	93	93	38	93	93	93	93
Deckard	79	93	93	77	93	93	93	93	93	93	93	93	93	93	93	93	93	93	93	93
SourcererCC	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
Oreo	66	64	1	0	66	66	66	66	66	65	64	66	1	66	66	66	66	66	66	66
Average	51	61	43	31	80	66	60	49	80	76	60	80	42	80	80	66	80	80	80	80
ASTNN	29	24	18	20	15	33	28	29	14	23	27	*	20	20	17	35	*	12	*	*
DeepSim	28	45	6	0	49	65	43	37	42	54	48	68	3	45	35	62	39	63	64	65
CCLearner	68	7	0	0	92	89	68	68	92	6	8	92	0	92	92	89	92	92	92	92
Average	42	25	8	7	52	62	46	45	49	28	28	**	8	52	48	62	**	56	**	**