def __init__(self):
communication = CommunicationHandler()
igaService = IgaService()
db_instances = communication.selectAllInstances()
genetic_instances = igaService.fromDatabaseInstances(db_instances)
communication.uploadPictures(db_instances)
def __init__(self):
communication = CommunicationHandler()
igaService = IgaService()
if not communication.reset():
print("Cannot reset!")
return
else:
print("Reset complete!")
igaService.reset()
class Initialise:
"""
Handles initialization of the interactive steady-state genetic algorithm.
This is called once, when we want to start the IGA.
"""
def __init__(self, verbose = False):
# Start the communication
communication = CommunicationHandler()
# Resume the IGA service
self.igaService = IgaService(verbose)
# Generate the initial population
population = self.igaService.generateInitialPopulation()
databaseInstances = self.igaService.createDatabaseInstances(population)
# Upload the initial population
if communication.uploadPopulation(databaseInstances):
print("Upload complete!")
else:
print("Cannot upload!")
def __init__(self, verbose = False):
# Start the communication
communication = CommunicationHandler()
# Resume the IGA service
self.igaService = IgaService(verbose)
# Generate the initial population
population = self.igaService.generateInitialPopulation()
databaseInstances = self.igaService.createDatabaseInstances(population)
# Upload the initial population
if communication.uploadPopulation(databaseInstances):
print("Upload complete!")
else:
print("Cannot upload!")
def __init__(self,secondsBetweenUpdates = 60*15, performOnlyOnce = False, verbose=False):
self.verbose = verbose
# Start the communication
self.communication = CommunicationHandler()
# Resume the IGA service
self.igaService = IgaService(verbose)
if performOnlyOnce:
self.update()
return
while True:
# Sleep until the chosen time arrives
if self.verbose: print "Waiting " + str(secondsBetweenUpdates) + "s\n"
time.sleep(secondsBetweenUpdates)
self.update()
def __init__(self):
communication = CommunicationHandler()
igaService = IgaService()
igaService.clearAllPictures() # Local
communication.clearAllPictures() # Server
class SteadyState:
"""
Steady state interactive genetic algorithm.
This runs as long as the IGA is needed.
"""
def __init__(self,secondsBetweenUpdates = 60*15, performOnlyOnce = False, verbose=False):
self.verbose = verbose
# Start the communication
self.communication = CommunicationHandler()
# Resume the IGA service
self.igaService = IgaService(verbose)
if performOnlyOnce:
self.update()
return
while True:
# Sleep until the chosen time arrives
if self.verbose: print "Waiting " + str(secondsBetweenUpdates) + "s\n"
time.sleep(secondsBetweenUpdates)
self.update()
def update(self):
"""
Perform an update step of the IGA steady state.
"""
if self.verbose: print("START STEADY STATE UPDATE! Time: " + str(time.time()))
if self.canSteadyStateEvolve():
if self.verbose: print("Evolving the steady state!")
self.updateSteadyState()
self.evolveSteadyState()
else:
if self.verbose: print("Cannot evolve the steady state!")
if self.verbose: print("End steady state update!")
def updateSteadyState(self):
"""
Update the steady state if an evolution occoured.
"""
self.igaService.params.viewCount = self.communication.getViewsCount()
if self.verbose: print("CURRENT VIEW COUNT: " + str(self.igaService.params.viewCount))
self.igaService.params.currentGeneration += 1
self.igaService.params.saveParamsToFile()
def canSteadyStateEvolve(self):
"""
Check whether we should evolve the steady state.
"""
return self.communication.canSteadyStateEvolve(
self.igaService.params.viewCount,
self.igaService.params.populationSize,
self.igaService.params.perc_new_views,
self.igaService.params.min_individual_views,
self.igaService.params.min_valid_views
)
def evolveSteadyState(self):
"""
Perform the steady state evolution
"""
databaseInstances = self.communication.selectInstances(self.igaService.params.selection_size,
self.igaService.params.min_individual_views,
self.igaService.params.tournament_size)
instances = self.igaService.fromDatabaseInstances(databaseInstances)
offspring = self.igaService.mutateAndRecombine(instances)
if self.igaService.params.delete_random_instances:
self.communication.deleteRandomInstances(len(instances), self.igaService.params.min_individual_views)
databaseInstances = self.igaService.createDatabaseInstances(offspring)
self.communication.uploadPopulation(databaseInstances)
