A Comparative Study of Data Transformations for Wavelet Shrinkage Estimation with Application to Software Reliability Assessment

Table 2

Representative discrete NHPP-based SRMs.

SRM	Mean value function Λ𝑖
Geometric (GE)	𝜔{1−(1−𝑝)^𝑖}
Negative Binomial (NB)	𝜔{∑^𝑖𝑘=1((𝑟+𝑘−1)!/(𝑟−1)!𝑘!)𝑝^𝑟(1−𝑝)^𝑘−1}
Discrete Weibull (DW)	𝜔{1−𝑝^𝑖𝑟}