Research Article

Semi-Supervised Ensemble Classifier with Improved Sparrow Search Algorithm and Its Application in Pulmonary Nodule Detection

Table 2

Summary of the CEC’17 test functions.

TypeNo.Functions

Unimodal functionsF1Shifted and Rotated Bent Cigar function100
F2Shifted and Rotated sum of different Power function200
F3Shifted and Rotated Zakharov function300

Simple multimodal functionsF4Shifted and Rotated Rosenbrock’s function400
F5Shifted and Rotated Rastrigin’s function500
F6Shifted and Rotated Expanded Scaffer’s F6 function600
F7Shifted and Rotated Lunacek Bi_Rastrigin function700
F8Shifted and Rotated noncontinuous Rastrigin’s function800
F9Shifted and Rotated Levy function900
F10Shifted and Rotated Schwefel’s function1000

Hybrid functionsF11Hybrid function 1 (N = 3)1100
F12Hybrid function 2 (N = 3)1200
F13Hybrid function 3 (N = 3)1300
F14Hybrid function 4 (N = 4)1400
F15Hybrid function 5 (N = 4)1500
F16Hybrid function 6 (N = 4)1600
F17Hybrid function 6 (N = 5)1700
F18Hybrid function 6 (N = 5)1800
F19Hybrid function 6 (N = 5)1900
F20Hybrid function 6 (N = 6)2000

Composition functionsF21Composition function 1 (N = 3)2100
F22Composition function 2 (N = 3)2200
F23Composition function 3 (N = 4)2300
F24Composition function 4 (N = 4)2400
F25Composition function 5 (N = 5)2500
F26Composition function 6 (N = 5)2600
F27Composition function 7 (N = 6)2700
F28Composition function 8 (N = 6)2800
F29Composition function 9 (N = 3)2900
F30Composition function 10 (N = 3)3000

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