1. A method of controlling a process having a process goal and control settings, comprising the steps of: (a) operating the process at current settings in accordance with a current rule; (b) sampling the process and determining whether a current sample representing a current state of the process is predicted by the current rule; (c) inducing a new rule when the sample is not predicted by the current rule and combining the current rule with the new rule to produce a combined rule; (d) changing the control settings in accordance with the combined rule when the combined rule will move the process toward the goal; and (e) operating the process at the changed control settings.