def CrossOverAndMutation(parent1=Classes.Chromosome(),
parent2=Classes.Chromosome()):
child = Classes.Chromosome()
for x in range(parent1.geneList.__len__()):
z = random.random()
if (z <= 0.5):
child.geneList.append(parent1.geneList[x])
elif (z <= 0.9):
child.geneList.append(parent2.geneList[x])
else:
child.geneList.append(parent1.geneList[x])
k = np.random.random()
if (k <= 0.32):
child = mutationAgainstDay(child, x)
pass
elif (k <= 0.62):
child = mutationAgainstTime(child, x)
pass
elif (k <= 1):
child = mutationAgainstRoom(child, x)
pass
return child
def crossOver(population=Classes.Population()):
parent1 = Classes.Chromosome()
parent2 = Classes.Chromosome()
parent1 = SelectionProcess.tournamentSelection(population)
parent2 = SelectionProcess.tournamentSelection(population)
#parent1 = RouletteSelection.RouletteWheelSelection(population)
#parent2 = RouletteSelection.RouletteWheelSelection(population)
#parent1 = GuessSelection.randomSelectionProcess(population)
#parent2 = GuessSelection.randomSelectionProcess(population)
#print("Parent 1 original fitness ",parent1.fitness)
#print("Parent 2 original fitness ",parent2.fitness)
#randomNumbers = generateRandomNumber(parent1.geneList.__len__())
child = Classes.Chromosome()
#child = CrossOverAndMutation(parent1,parent2)
#child = mate(parent1,parent2)
child = simpleCrossOver(parent1, parent2)
#print(child.geneList.__len__());
#child = simpleCrossOver(parent1,parent2)
#child = simpleMutation(child)
return child
def simpleCrossOver(parent1=Classes.Chromosome(),
parent2=Classes.Chromosome()):
child = Classes.Chromosome()
for x in range(parent1.geneList.__len__()):
z = np.random.random()
if (z <= 0.5):
child.geneList.append(parent1.geneList[x])
elif (z > 0.5):
child.geneList.append(parent2.geneList[x])
return child
def mutationAgainstRoom(child=Classes.Chromosome(), index=0):
# Room
if (child.geneList[index].Type == 0):
child.geneList[index].Room = random.randint(2, 6)
# lab
elif (child.geneList[index].Type == 1):
child.geneList[index].Room = random.randint(0, 1)
return child
def printChromosome(chromosome1=Classes.Chromosome()):
print("\n\n")
for x in chromosome1.geneList:
print(CodeList.code_Subject[x.CourseID], " ",
CodeList.code_Teacher[x.Teacher], " ",
CodeList.Section[x.Section], " ", CodeList.class_type[x.Type],
" ", CodeList.Batch[x.Batch], " ", CodeList.Room[x.Room],
" ", x.start_time, " ", x.end_time, " ",
CodeList.Day[x.Day])
print("\n")
print("\n\n\n")
def mate(par1, par2):
child = Classes.Chromosome()
scale = int((par1.geneList.__len__()) / 4)
for x in range(0, scale):
child.geneList.append(par1.geneList[x])
for x in range(scale, scale + scale):
child.geneList.append(par2.geneList[x])
for x in range(scale + scale, scale + scale + scale):
child.geneList.append(par1.geneList[x])
for x in range(scale + scale + scale, par1.geneList.__len__()):
child.geneList.append(par2.geneList[x])
mutationChance = random.random()
for x in range(1):
type_same = 0
while (type_same != 1):
firstHalf = int(child.geneList.__len__() / 2)
secondHalf = firstHalf + 1
index1 = random.randint(0, firstHalf)
index2 = random.randint(secondHalf, child.geneList.__len__() - 1)
if (child.geneList[index1].Type == child.geneList[index2].Type):
type_same = 1
Day = child.geneList[index2].Day
Room = child.geneList[index2].Room
start_time = child.geneList[index2].start_time
end_time = child.geneList[index2].end_time
child.geneList[index2].Day = child.geneList[index1].Day
child.geneList[index2].Room = child.geneList[index1].Room
child.geneList[index2].start_time = child.geneList[
index1].start_time
child.geneList[index2].end_time = child.geneList[
index1].end_time
child.geneList[index1].Day = Day
child.geneList[index1].Room = Room
child.geneList[index1].start_time = start_time
child.geneList[index1].end_time = end_time
return child
def simpleMutation(Child=Classes.Chromosome()):
randomNumbers = []
#length = int(Child.geneList.__len__()/2)
length = 3
for x in range(length):
randomNumbers.append(random.randint(0, Child.geneList.__len__() - 1))
for x in randomNumbers:
z = np.random.random()
if (z < 0.4):
#Mutation Day
Child.geneList[x].Day = random.randint(0, 4)
elif (z < 0.5):
#Mutation Time
if (Child.geneList[x].Type == 0):
timeList = SetTime.set_timing_for_class()
Child.geneList[x].start_time = timeList[0]
Child.geneList[x].end_time = timeList[1]
# lab
elif (Child.geneList[x].Type == 1):
timeList = SetTime.set_timing_for_lab()
Child.geneList[x].start_time = timeList[0]
Child.geneList[x].end_time = timeList[1]
elif (z <= 1):
#Mutation Room
if (Child.geneList[x].Type == 0):
Child.geneList[x].Room = random.randint(2, 6)
# lab
elif (Child.geneList[x].Type == 1):
Child.geneList[x].Room = random.randint(0, 1)
return Child
def mutationAgainstTime(child=Classes.Chromosome(), index=0):
if (child.geneList[index].Type == 0):
timeList = SetTime.set_timing_for_class()
child.geneList[index].start_time = timeList[0]
child.geneList[index].end_time = timeList[1]
elif (child.geneList[index].Type == 1):
timeList = SetTime.set_timing_for_lab()
child.geneList[index].start_time = timeList[0]
child.geneList[index].end_time = timeList[1]
return child
def GenerateChromosome(Time_List):
# create a chromosome consisting of multiple genes
chromosome1 = Classes.Chromosome()
CodeList.Time = Time_List
for x in CodeList.course_database:
timeList = []
del timeList
if (CodeList.course_database[x][2] == 0):
timeList = SetTime.set_timing_for_class()
chromosome1.geneList.append(
Classes.ChromosomeGene(CodeList.course_database[x][0],
CodeList.course_database[x][1],
CodeList.course_database[x][3],
CodeList.course_database[x][2],
CodeList.course_database[x][4],
random.randint(2, 7), timeList[0],
timeList[1], random.randint(0, 4)))
elif (CodeList.course_database[x][2] == 1):
timeList = SetTime.set_timing_for_lab()
chromosome1.geneList.append(
Classes.ChromosomeGene(CodeList.course_database[x][0],
CodeList.course_database[x][1],
CodeList.course_database[x][3],
CodeList.course_database[x][2],
CodeList.course_database[x][4],
random.randint(0, 1), timeList[0],
timeList[1], random.randint(0, 4)))
Clash_List = Fitness.CalculateFitness(chromosome1)
chromosome1.fitness = (Clash_List[0] + Clash_List[1] + Clash_List[2]) * -1
return chromosome1
def mutationAgainstDay(child=Classes.Chromosome(), index=0):
child.geneList[index].Day = random.randint(0, 4)
return child
