We have used three cooling schedules for our
experiments, reheating based on cost and geometric cooling. Each
schedule takes a set of parameters --- the initial temperature, the
temperature reduction constant (#tex2html_wrap_inline1844#), and time (number of iterations)
spent at each temperature. We also needed to specify a criterion for
stopping the procedure when it was believed that the solution was
good enough that we do not expect to obtain much improvement by
extending the run.