Software Defect Prediction Based on Elman Neural Network and Cuckoo Search Algorithm

Table 2

The statistics of 7 projects.

Project	Description	Release	Avg files	Avg defect rate (%)
Ant	Java-based build tool	1.3, 1.4, 1.5, 1.6, 1.7	340	19.58
Camel	Enterprise integration framework	1.0, 1.2, 1.4, 1.6	696	18.87
log4j	Logging library for java	1.0, 1.1, 1.2	150	50.44
poi	Java library to access Microsoft format files	1.5, 2.0RC1, 2.5.1, 3.0	345	49.82
Velocity	A template engine based on java	1.4, 1.5, 1.6.1	213	58.47
Xalan	A library for transforming library	2.4.0, 2.5.0, 2.6.0, 2.7.0	830	52.14
Xerces	XML parser	1.2.0, 1.3.0, 1.4.4, init	411	38.30