feat: add multi-objective optimization with NSGA-II

Add MultiObjectiveStudy for optimizing multiple objectives simultaneously,
backed by NSGA-II (Non-dominated Sorting Genetic Algorithm II) with SBX
crossover, polynomial mutation, and constraint-aware dominance.

New public API:
- MultiObjectiveStudy with optimize(), pareto_front(), ask()/tell()
- MultiObjectiveTrial with get(), is_feasible(), user attributes
- MultiObjectiveSampler trait for custom MO samplers
- Nsga2Sampler with builder for population size, crossover/mutation params
- ObjectiveDimensionMismatch error variant

This commit is contained in:

Manuel Raimann

2026-02-11 19:35:18 +01:00

parent 7d79111d81

commit bcc4549e66

7 changed files with 1832 additions and 0 deletions

									
										src/sampler/mod.rs
									
		+1
		
												View File
												
				@@ -4,6 +4,7 @@ pub mod bohb;

				#[cfg(feature = "cma-es")]

				pub mod cma_es;

				pub mod grid;

				pub mod nsga2;

				pub mod random;

				#[cfg(feature = "sobol")]

				pub mod sobol;