Quellcode für qiskit.algorithms.optimizers.nlopts.crs

# This code is part of Qiskit.
# (C) Copyright IBM 2018, 2020.
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
# Any modifications or derivative works of this code must retain this
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"""Controlled Random Search (CRS) with local mutation optimizer."""

from .nloptimizer import NLoptOptimizer, NLoptOptimizerType

[Doku]class CRS(NLoptOptimizer): """ Controlled Random Search (CRS) with local mutation optimizer. Controlled Random Search (CRS) with local mutation is part of the family of the CRS optimizers. The CRS optimizers start with a random population of points, and randomly evolve these points by heuristic rules. In the case of CRS with local mutation, the evolution is a randomized version of the :class:`NELDER_MEAD` local optimizer. NLopt global optimizer, derivative-free. For further detail, please refer to https://nlopt.readthedocs.io/en/latest/NLopt_Algorithms/#controlled-random-search-crs-with-local-mutation """
[Doku] def get_nlopt_optimizer(self) -> NLoptOptimizerType: """Return NLopt optimizer type""" return NLoptOptimizerType.GN_CRS2_LM