automata v0.1.0 Automaton.Utility

Node utility decisioning First pass should prioritize composite 'selector' actions based on utility (a priority composite node)

Dual Utility Reasoner There are two common approaches to utility-based selection. The first, absolute utility, is to evaluate every option and take the one with the highest utility. The second, relative utility, is to select an option at random, using the utility of each option to define the probability that it will be selected. The probability (P) for selecting an option (O) is determined by dividing the utility (U) of that option by the total utility of all options. This approach is commonly referred to as weight-based random or weighted random.

A Dual Utility Reasoner combines both of these approaches. It assigns two utility values to each option: a rank (absolute utility) and a weight (relative utility). Conceptually, rank is used to divide the options into categories, where we only select options that are in the best category. Weight is used to evaluate options within the context of their category. Thus the weight of an option is only meaningful relative to the weights of other options within the same rank category – and only the weights of the options in the best category truly matter