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Merge edited version of Mahran-Yousef:master pull request

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Lee Spector 2020-06-20 00:15:40 -04:00
commit c6f9b58556
8 changed files with 71 additions and 62 deletions
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4
propeller.iml
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@ -5,8 +5,8 @@
<output-test url="file://$MODULE_DIR$/target/classes" />
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/resources" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/dev-resources" isTestSource="false" />
<sourceFolder url="file://C:\Users\user\Documents\GitHub\propeller\dev-resources" isTestSource="false" />
<sourceFolder url="file://C:\Users\user\Documents\GitHub\propeller\resources" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
<excludeFolder url="file://$MODULE_DIR$/target" />

9
src/propeller/core.clj
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@ -9,11 +9,14 @@
(gp (update-in (merge {:instructions default-instructions
:error-function regression-error-function
:max-generations 500
:population-size 200
:population-size 500
:max-initial-plushy-size 50
:step-limit 100
:parent-selection :tournament
:tournament-size 5}
:parent-selection :lexicase
:tournament-size 5
:UMADRate 0.1
:variation {:UMAD 0.5 :crossover 0.5}
:elitism false}
(apply hash-map
(map read-string args)))
[:error-function]

18
src/propeller/genome.clj
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@ -4,16 +4,16 @@
(defn push-from-plushy
"Returns the Push program expressed by the given plushy representation."
[plushy]
(let [opener? #(and (vector? %) (= (first %) 'open))] ;; [open <n>] marks opens
(loop [push () ;; iteratively build the Push program from the plushy
(let [opener? #(and (vector? %) (= (first %) 'open))] ;; [open <n>] marks opens
(loop [push () ;; iteratively build the Push program from the plushy
plushy (mapcat #(if-let [n (get opens %)] [% ['open n]] [%]) plushy)]
(if (empty? plushy) ;; maybe we're done?
(if (some opener? push) ;; done with plushy, but unclosed open
(recur push '(close)) ;; recur with one more close
push) ;; otherwise, really done, return push
(if (empty? plushy) ;; maybe we're done?
(if (some opener? push) ;; done with plushy, but unclosed open
(recur push '(close)) ;; recur with one more close
push) ;; otherwise, really done, return push
(let [i (first plushy)]
(if (= i 'close)
(if (some opener? push) ;; process a close when there's an open
(if (some opener? push) ;; process a close when there's an open
(recur (let [post-open (reverse (take-while (comp not opener?)
(reverse push)))
open-index (- (count push) (count post-open) 1)
@ -23,8 +23,8 @@
(concat pre-open [post-open])
(concat pre-open [post-open ['open (dec num-open)]])))
(rest plushy))
(recur push (rest plushy))) ;; unmatched close, ignore
(recur (concat push [i]) (rest plushy)))))))) ;; anything else
(recur push (rest plushy))) ;; unmatched close, ignore
(recur (concat push [i]) (rest plushy)))))))) ;; anything else
(defn make-random-plushy
"Creates and returns a new plushy."

10
src/propeller/gp.clj
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@ -22,7 +22,7 @@
"Main GP loop."
[{:keys [population-size max-generations error-function instructions
max-initial-plushy-size]
:as argmap}]
:as argmap}]
(println "Starting GP with args:" argmap)
(loop [generation 0
population (repeatedly
@ -38,5 +38,9 @@
(zero? (:total-error (first evaluated-pop))) (println "SUCCESS")
(>= generation max-generations) nil
:else (recur (inc generation)
(repeatedly population-size
#(new-individual evaluated-pop argmap)))))))
(if (:elitism argmap)
(conj (repeatedly (dec population-size)
#(new-individual evaluated-pop argmap))
(first evaluated-pop))
(repeatedly population-size
#(new-individual evaluated-pop argmap))))))))

4
src/propeller/instructions.clj
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@ -38,9 +38,9 @@
"G"
"T"))
(def opens ; number of blocks opened by instructions (default = 0)
(def opens ; number of blocks opened by instructions (default = 0)
{'exec_dup 1
'exec_if 2})
'exec_if 2})
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; actual instructions

12
src/propeller/pushstate.clj
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@ -2,17 +2,17 @@
(:use [propeller util]))
(def example-push-state
{:exec '()
{:exec '()
:integer '(1 2 3 4 5 6 7)
:string '("abc")
:input {:in1 4}})
:string '("abc")
:input {:in1 4}})
(def empty-push-state
{:exec '()
{:exec '()
:integer '()
:string '()
:string '()
:boolean '()
:input {}})
:input {}})
(defn push-to-stack
"Pushes item onto stack in state"

38
src/propeller/session.clj
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@ -5,37 +5,37 @@
#_(interpret-program '(1 2 integer_+) empty-push-state 1000)
#_(interpret-program '(3 5 integer_= exec_if (1 "yes") (2 "no"))
empty-push-state
1000)
empty-push-state
1000)
#_(interpret-program '(in1 string_reverse 1 string_take "?" string_= exec_if
(in1 " I am asking." string_concat)
(in1 " I am saying." string_concat))
(assoc empty-push-state :input {:in1 "Can you hear me?"})
1000)
(in1 " I am asking." string_concat)
(in1 " I am saying." string_concat))
(assoc empty-push-state :input {:in1 "Can you hear me?"})
1000)
#_(interpret-program '(in1 string_reverse 1 string_take "?" string_= exec_if
(in1 " I am asking." string_concat)
(in1 " I am saying." string_concat))
(assoc empty-push-state :input {:in1 "I can hear you."})
1000)
(in1 " I am asking." string_concat)
(in1 " I am saying." string_concat))
(assoc empty-push-state :input {:in1 "I can hear you."})
1000)
#_(push-from-plushy (make-random-plushy default-instructions 20))
#_(interpret-program (push-from-plushy (make-random-plushy default-instructions 20))
(assoc empty-push-state :input {:in1 "I can hear you."})
1000)
(assoc empty-push-state :input {:in1 "I can hear you."})
1000)
;; Target function: f(x) = x^3 + x + 3
#_(gp {:instructions default-instructions
:error-function regression-error-function
:max-generations 50
:population-size 200
:max-initial-plushy-size 50
:step-limit 100
:parent-selection :tournament
:tournament-size 5})
:error-function regression-error-function
:max-generations 50
:population-size 200
:max-initial-plushy-size 50
:step-limit 100
:parent-selection :tournament
:tournament-size 5})
#_(gp {:instructions default-instructions
:error-function string-classification-error-function

38
src/propeller/variation.clj
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@ -16,22 +16,19 @@
longer))))
(defn uniform-addition
"Randomly adds new instructions before every instruction (and at the end of
the plushy) with some probability."
[plushy instructions]
(let [rand-code (repeatedly (inc (count plushy))
(fn []
(if (< (rand) 0.05)
(rand-nth instructions)
:mutation-padding)))]
(remove #(= % :mutation-padding)
(interleave (conj plushy :mutation-padding)
rand-code))))
"Returns plushy with new instructions possibly added before or after each existing instruction."
[plushy instructions UMADRate]
(apply concat
(map #(if (< (rand) UMADRate)
(shuffle [% (rand-nth instructions)])
[%])
plushy)))
(defn uniform-deletion
"Randomly deletes instructions from plushy at some rate."
[plushy]
(remove (fn [x] (< (rand) 0.05))
[plushy UMADRate]
(remove (fn [_] (< (rand)
(/ 1 (+ 1 (/ 1 UMADRate)))))
plushy))
(defn new-individual
@ -41,8 +38,13 @@
{:plushy
(let [prob (rand)]
(cond
(< prob 0.5) (crossover (:plushy (select-parent pop argmap))
(:plushy (select-parent pop argmap)))
(< prob 0.75) (uniform-addition (:plushy (select-parent pop argmap))
(:instructions argmap))
:else (uniform-deletion (:plushy (select-parent pop argmap)))))})
(< prob (:crossover (:variation argmap)))
(crossover (:plushy (select-parent pop argmap))
(:plushy (select-parent pop argmap)))
(< prob (+ (:crossover (:variation argmap))
(:UMAD (:variation argmap)) 2))
(uniform-deletion (uniform-addition (:plushy (select-parent pop argmap))
(:instructions argmap)
(:UMADRate argmap))
(:UMADRate argmap))
:else (:plushy (select-parent pop argmap))))})