PlateauTerminator Use and calling

[nitishranalkar]

1. What is the use of PlateauTerminator?
2. How to call it?
3. How we can use it effectively so that if score doesn't increase after some point, it should terminate? Please suggest any other good method if available in reinvent4.

[halx]

Hi,

many thanks for your interest in REINVENT and welcome to the community!

You would just simply set termination in each stage to PlateauTerminator. I would, however, not really recommend using this as it is a rather simplistic approach and makes naive assumptions. Basically it remembers the last 10 data points and uses those to estimate if the fitted slope is below a certain threshold i.e. if a plateau has been found. There is no guarantee that the total score shows asymptotic behaviour.

The only other option we have at the moment is to terminate (or transition to the next stage) if a simple score threshold (max_score) is exceeded. It is not trivial to come up with a well-defined criterion to decide when should be terminated. Experimentation and visual inspection of the progression of the total score is still very much needed.

Many thanks,
Hannes.

[nitishranalkar]

Thanks for the answer.