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ref:cma_optimizer [2020/06/19 15:47] (current) |
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| + | ====== CmaOptimizer ====== | ||
| + | [[optimizer|Optimizer]] based on the CMA-ES algorithm by [Hansen]. | ||
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| + | This is an abstract base class, use a derived class instead. | ||
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| + | **Inherits from** [[optimizer|Optimizer]]. | ||
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| + | **Inherited by** [[cma_optimizer_spot|CmaOptimizerSpot]]. | ||
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| + | ==== Public Attributes ==== | ||
| + | ^ Parameter ^ Type ^ Description ^ | ||
| + | ^ mu_ | int | Mu parameter of CMA-ES. | | ||
| + | ^ lambda_ | int | Lambda parameter of CMA-ES. | | ||
| + | ^ sigma_ | double | Initial Sigma parameter of CMA-ES. | | ||
| + | ^ window_size | size_t | Window size used for fitness prediction; default = 500. | | ||
| + | ^ random_seed | long | Random seed that will determine the randomness during the optimization. | | ||
| + | ^ flat_fitness_epsilon_ | double | Epsilon value to detect flat fitness; default = 1e-6. | | ||
| + | ^ init_file | path | Parameter file (.par) to be used for initial parameter values. | | ||
| + | ^ use_init_file | bool | Use init_file (if exists); default = true. | | ||
| + | ^ use_init_file_std | bool | Use the standard deviations from the init_file; when set to false, the initial standard deviation is computed as follows: STDEV = parameter value * init_file_std_factor + init_file_std_offset; default = true. | | ||
| + | ^ init_file_std_factor | double | Factor by which to multiply the standard deviations from the init_file; default = 1.0. | | ||
| + | ^ init_file_std_offset | double | Offset added to the standard deviations from init_file; default = 0. | | ||
| + | ^ max_threads | size_t | Maximum number of threads to use for this optimization; default = 32. | | ||
| + | ^ thread_priority | int | Thread priority of the optimization; 0 = lowest, 7 = highest, default = 1. | | ||
| + | ^ max_generations | size_t | Number of iterations after which to stop the optimization; default = 10000. | | ||
| + | ^ min_progress | double | Minimum progress after which to stop the optimization; default = 1e-6. | | ||
| + | ^ min_progress_samples | size_t | Minimum number of samples after which progress is measured; default = 200. | | ||
| + | ^ min_improvement_for_file_output | Real | The minimum relative improvement needed for file output; default = 0.05. | | ||
| + | ^ max_generations_without_file_output | size_t | The maximum number of iterations without file output; default = 1000. | | ||
| + | ^ signature_prefix | String | Prefix signature with custom string. Special tags: DATE_TIME, DATE_TIME_EXACT, SCONE_VERSION. | | ||
| + | ^ signature_postfix | String | Append custom string to signature. Special tags: DATE_TIME, DATE_TIME_EXACT, SCONE_VERSION. | | ||
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| + | <sub>Converted from doxygen using [[https://github.com/tgeijten/dokugen|dokugen]]</sub> | ||