[question] What to do if some argument values are not valid?

Question

[question] What to do if some argument values are not valid?

lesshaste opened this issue 2 years ago · comments

dlib version 19.23.0 on ubuntu 20.04 64 bit using dlib from python

I have an objective function that takes integer parameters but some parameters are not valid. Is there a recommendation for what to do in this circumstance using dlib's find_min_global? Looking at the Lipschitz optimization method it seems that just returning a very large value when calling the objective function with invalid arguments risks artificially giving a very large Lipschitz constant to the optimization method which might ruin its efficiency.

Davis E. King · Answer 1 · Sat Mar 12 2022 23:31:44 GMT+0800 (China Standard Time)

There is aLipschitz constant separately for each dimension. So you just have to do something reasonable for each dimension. What is reasonable will depend on the nature of your function.

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On Fri, Mar 11, 2022 at 4:04 PM lesshaste ***@***.***> wrote: dlib version 19.23.0 on ubuntu 20.04 64 bit using dlib from python I have an objective function that takes integer parameters but some parameters are not valid. Is there a recommendation for what to do in this circumstance using dlib's find_min_global? Looking at the Lipschitz optimization method it seems that just returning a very large value when calling the objective function with invalid arguments risks artificially giving a very large Lipschitz constant to the optimization method which might ruin its efficiency. — Reply to this email directly, view it on GitHub <#2543>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABPYFR762WQKRV26LP22O7TU7OYNPANCNFSM5QQVZOKQ> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

dlib issue bot · Answer 2 · Sun Apr 17 2022 16:00:06 GMT+0800 (China Standard Time)

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dlib issue bot · Answer 3 · Sun Apr 24 2022 16:00:09 GMT+0800 (China Standard Time)

Warning: this issue has been inactive for 42 days and will be automatically closed on 2022-04-26 if there is no further activity.

If you are waiting for a response but haven't received one it's possible your question is somehow inappropriate. E.g. it is off topic, you didn't follow the issue submission instructions, or your question is easily answerable by reading the FAQ, dlib's official compilation instructions, dlib's API documentation, or a Google search.

dlib issue bot · Answer 4 · Wed Apr 27 2022 16:00:09 GMT+0800 (China Standard Time)

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