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I want to minimize the following objective function:

$\min_{w,v} f(w,v) + g(w,a^*) \qquad (*)$

where

$a^* = \arg\min_a h(w,a) $.

If I can have an analytical solution for $a^*$ with respect to $w$, then I can put it back to $(*)$. But what if I don't have an analytical solution?

Thank you!

  • Bilevel Optimization http://luthuli.cs.uiuc.edu/~daf/courses/Optimization/BilevelSubmodularMaterial/Bilevel.pdf .Include the KKT optimality conditions for $a^$ as constraints added to the problem () and solve the (combined) problem numerically. These problems can be very tough to solve. – Mark L. Stone Dec 28 '19 at 01:46
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    Hi Mark, I think this is the solution I am looking for. Thanks very much! – user3138073 Jan 13 '20 at 19:52

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