This concept should not be new to readers of this
list. In the article, the authors are using data gathering to tune the
customization. In the past, we have discussed dynamic schemas that are
modified by feedback from the environment. The applications are different,
but the solutions are variations of feedback-control.
It can be useful to look at different models for tuning the
feedback system itself. PIDS controllers are one example.
Analogizing these to dynamic schema systems shouldn't be