A simple mlr3misc::Dictionary storing objects of class AcqFunction.
Each acquisition function has an associated help page, see mlr_acqfunctions_[id].
For a more convenient way to retrieve and construct an acquisition function, see acqf() and acqfs().
Format
R6::R6Class object inheriting from mlr3misc::Dictionary.
Methods
See mlr3misc::Dictionary.
See also
Sugar functions: acqf(), acqfs()
Other Dictionary:
mlr_input_trafos,
mlr_loop_functions,
mlr_output_trafos,
mlr_result_assigners
Other Acquisition Function:
AcqFunction,
mlr_acqfunctions_aei,
mlr_acqfunctions_cb,
mlr_acqfunctions_ehvi,
mlr_acqfunctions_ehvigh,
mlr_acqfunctions_ei,
mlr_acqfunctions_ei_log,
mlr_acqfunctions_eips,
mlr_acqfunctions_mean,
mlr_acqfunctions_multi,
mlr_acqfunctions_pi,
mlr_acqfunctions_sd,
mlr_acqfunctions_smsego,
mlr_acqfunctions_stochastic_cb,
mlr_acqfunctions_stochastic_ei
Examples
library(data.table)
as.data.table(mlr_acqfunctions)
#> Key: <key>
#> key label
#> <char> <char>
#> 1: aei Augmented Expected Improvement
#> 2: cb Lower / Upper Confidence Bound
#> 3: ehvi Expected Hypervolume Improvement
#> 4: ehvigh Expected Hypervolume Improvement via GH Quadrature
#> 5: ei Expected Improvement
#> 6: ei_log Expected Improvement on Log Scale
#> 7: eips Expected Improvement Per Second
#> 8: mean Posterior Mean
#> 9: multi Acquisition Function Wrapping Multiple Acquisition Functions
#> 10: pi Probability Of Improvement
#> 11: sd Posterior Standard Deviation
#> 12: smsego SMS-EGO
#> 13: stochastic_cb Stochastic Lower / Upper Confidence Bound
#> 14: stochastic_ei Stochastic Expected Improvement
#> man
#> <char>
#> 1: mlr3mbo::mlr_acqfunctions_aei
#> 2: mlr3mbo::mlr_acqfunctions_cb
#> 3: mlr3mbo::mlr_acqfunctions_ehvi
#> 4: mlr3mbo::mlr_acqfunctions_ehvigh
#> 5: mlr3mbo::mlr_acqfunctions_ei
#> 6: mlr3mbo::mlr_acqfunctions_ei_log
#> 7: mlr3mbo::mlr_acqfunctions_eips
#> 8: mlr3mbo::mlr_acqfunctions_mean
#> 9: mlr3mbo::mlr_acqfunctions_multi
#> 10: mlr3mbo::mlr_acqfunctions_pi
#> 11: mlr3mbo::mlr_acqfunctions_sd
#> 12: mlr3mbo::mlr_acqfunctions_smsego
#> 13: mlr3mbo::mlr_acqfunctions_stochastic_cb
#> 14: mlr3mbo::mlr_acqfunctions_stochastic_ei
acqf("ei")
#>
#> ── <AcqFunctionEI> ─────────────────────────────────────────────────────────────
#> • Domain:
#> Empty data.table (0 rows and 5 cols): id,class,lower,upper,nlevels
#> • Codomain:
#> Empty data.table (0 rows and 4 cols): id,class,lower,upper
#> • Constants:
#> id class lower upper nlevels
#> <char> <char> <num> <num> <num>
#> 1: epsilon ParamDbl 0 Inf Inf