“…Liu, Zhou, and Tang (2010), Lee, Wang, Shiau, and Wu (2010), Liu, Yi, and Zhou (2011), and Wu et al (2013) investigated linear function-based approaches to compute actual processing times, whereas ), Wu, Huang, and Lee (2011), and Li and Hsu (2012 applied exponential function-based approaches. Furthermore, some further approaches assume that the actual processing time depends on the sum of the processing times of the jobs processed previously (Cheng, Cheng, Wu, Hsu, & Wu, 2011;Liu, Yi, Zhou, & Gong, 2013;Wu, 2014).…”