“…Recently chemotaxis (i.e., the bacterial foraging behaviour) as a rich source of potential engineering applications and computational model has attracted more and more attentions. Several new evolutionary computing techniques have been developed to mimic bacterial foraging behaviour (Bremermann and Anderson, 1990;Müeller et al, 2002;Passino, 2002;Chen et al, 2009Chen et al, , 2011. Among them, Bacterial foraging optimisation (BFO) is one population-based numerical optimisation algorithm presented by Passino and successfully applied to many real world problems like optimal control (Kim and Cho, 2005), harmonic estimation (Mishra, 2005), transmission loss reduction (Tripathy et al, 2006), RFID network planning (Chen et al, 2010), active power filter for load compensation (Mishra and Bhende, 2007), power network (Tripathy and Mishra, 2007), and load forecasting (Ulagammai et al, 2007).…”