Generative Refinement for Low-Budget Black-Box Optimization
Black-box optimization is a fundamental tool in science and engineering for optimizing objectives when gradient information is unavailable. It becomes especially difficult when the objective function is expensive to evaluate, limiting the evaluation budget to a few tens or hundreds of queries, and when good solutions occupy complex, low-measure regions of the search space. Generative models can supply useful structural priors in such settings, but existing generative BBO approaches bring significant evaluation cost. We identify three design principles for generative optimization under such low-budget conditions: avoid objective learning, optimize in candidate space, and make every evaluat...
| Authors | Edouard R. Dufour, Oliver Heinimann, Pascal Fua |
|---|---|
| Primary category | cs.LG |
| Published | 1 July 2026 |
| Last updated at source | 30 September 2026 |
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