A configuration for selecting a min value. A configuration to select one of the two inputs in 1UN notation using the right most bit as a selector s. When s = 1 the switch is turned on to allow the data to flow through and get selected by the max switch. When the selector s = 0, the on/off switch produces zeros and the other data flow will be selected. ε = o - g, o ≥ g, is the difference between opening gap cost o and extending gap cost g.
Nguyen et al. BMC Genomics 2011 12(Suppl 5):S4 doi:10.1186/1471-2164-12-S5-S4