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Specify and comment on more (all?) options for gp argmap

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Lee Spector 2024-01-07 12:47:12 -05:00
parent 3ae7123cd8
commit cd73c73aa0
1 changed files with 16 additions and 2 deletions
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18
src/propeller/gp.cljc
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@ -52,27 +52,41 @@
"Returns argmap with any unspecified values filled with defaults."
[argmap]
(let [defaults
{:bmx-exchange-rate 0.5 ; for bmx, the rate at which genes will be exchanged
{:alignment-deviation 2 ; for alternation, the standard deviation of deviation of index when alternating
:alternation-rate 0.1 ; for alternation, the probability of switching parents at each location
:bmx-exchange-rate 0.5 ; for bmx, the rate at which genes will be exchanged
:bmx-gene-length-limit 10 ; for bmx, the maximum length of a gene
:bmx-gap-change-probability 0.001 ; for bmx, the mutation rate for gaps
:bmx-complementary? false ; for bmx, whether mates selected using reverse case sequence of first parent
:bmx-maximum-distance 1000000 ; for bmx, don't exchange if distance is greater than this
:bmx-same-gene-count false ; for bmx, only allow exchanges between individuals with same number of genes
:custom-report false ; if provided, should be a function that takes an argmap
:dont-end false ; if true, keep running until limit regardless of success
:downsample? true ; wether to use downsampling
:ds-function :case-maxmin ; :case-rand, case-maxmin, case-maxmin-auto
:downsample-rate 0.05 ; proportion of data used in downsample
:ds-parent-rate 0.01 ; proportion of parents used to evaluate case distances
:ds-parent-gens 10 ; generations between computation of parent distances
:elitism false ; whether always to add the lowest-error individual to the next generation
:error-function (fn [& args] (println "ERROR FUNCTION NOT PROVIDED")) ; must provide
:ids-type :solved ; type of informed downsampling, :solved or :elite or :soft
:instructions ["INSTRUCTIONS NOT PROVIDED"] ; must be provided
:max-batch-size 10 ; for motley-batch-lexicase-selection, the max size of a batch of cases
:max-initial-plushy-size 100 ; the maximum size of genomes in initial population
:max-generations 1000 ; generation limi when downsampling is not used, adjusted by downsampling
:parent-selection :lexicase ; see options in variation.cljc
:population-size 1000 ; the size of the GP ppopulation
:replacement-rate 0.1 ; for uniform-replacement, the rate at with items will be replaced
:simplification? false ; whether to auto-simplify solutions
:simplification-k 4 ; when auto-simplifying, max number of items deleted in single step
:simplification-steps 1000 ; when auto-simplifying, number of simplification steps to perform
:simplification-verbose? false ; when auto-simplifying, whether to print a lot of information
:single-thread-mode false ; if true, don't use multithreading
:solution-error-threshold 0 ; maximum total error for solutions
:ssx-not-bmx false ; for bmx, swap with segment with same sequence index, not by best match
:step-limit 1000 ; limit of Push interpreter steps in a Push program evaluation
:testing-data [] ; must be provided unless there is no testing data
:tournament-size 5 ; for torunament selection, the number of individuals in each tournament
:training-data [] ; must be provided
:umad-rate 0.1 ; addition rate (from which deletion rate will be derived) for UMAD
:variation {:umad 1} ; genetic operators and probabilities for their use, which should sum to 1
@ -181,7 +195,7 @@
(if best-individual-passes-ds
(- (count indexed-training-data) (count training-data))
0)) ; if we checked for generalization or not
(if (:elitism argmap) ; elitism maintains the most-fit individual
(if (:elitism argmap) ; elitism maintains the individual with lowest total error
(conj (utils/pmapallv (fn [_] (variation/new-individual evaluated-pop argmap))
(range (dec population-size))
argmap)