Table 7.

Aggregate results for Precision, Recall, Accuracy, F-Measure, MCC, and AUC-PR without (i.e., “w/o HT”) and with (i.e., “w/ HT”) the hyper-parameter optimization by Random Search in the cross-project setting

	Precision		Recall		Accuracy
Test smell	w/o HT	w/ HT	w/o HT	w/ HT	w/o HT	w/ HT
Eager test	0.27	0.30	0.64	0.54	0.42	0.53
Mystery guest	0.44	0.44	0.37	0.37	0.82	0.82
Resource opt.	0.25	0.24	0.32	0.30	0.87	0.87
Test red.	0.004	0.01	0.97	0.97	0.05	0.03
	F-Measure		MCC		AUC-PR
Eager test	0.38	0.39	-0.01	0.06	0.32	0.33
Mystery guest	0.40	0.40	0.30	0.30	0.46	0.41
Resource opt.	0.28	0.26	0.22	0.20	0.27	0.28
Test red.	0.01	0.01	0.01	0.00	0.41	0.13