def fit(self, x, y):
"""
Fit the steels classifier according to the given training data.
:param list x: samples.
:param list y: samples' classes.
"""
environment = Environment(x, y)
agents = {}
if self.classifiers is None:
for _ in range(15):
agent = SteelsClassificationAgent(alpha=self.alpha)
agents[agent.id] = agent
else:
for classifier in self.classifiers:
agent = SteelsClassificationAgent(classifier=classifier, alpha=self.alpha)
agents[agent.id] = agent
for agent in agents.values():
agent.set_fitness("DG", CurrentFitness())
agent.set_fitness("GG", CurrentFitness())
network = Network(agents, {1: generate_topology(self.topology, agents_names=agents.keys())})
self.simulation = Simulation(
network, self.interactions, BehaviorSwitcher(environment), SteelsClassifierResults(), self.condition
)
self.result = self.simulation.run()
class TestSimulation:
def __init__(self):
self.simulation = None
def setup(self):
self.simulation = None
def test_flu_game(self):
"""
Flu game simulates flu expanding through social network.
"""
# Network construction.
agents = {}
for _ in range(100):
agent = Agent()
agent.set_fitness("infected", InfectedFitness())
agents[agent.get_id()] = agent
for agent in agents:
agents[agent].update_fitness_measure("infected", True)
break
topology = generate_topology("clique", agents_names=agents.keys())
changes = {1: "clique"}
network = Network(agents, {"clique": topology}, changes)
# Interaction construction.
interactions = BehaviorSwitcher({
"infection": InfectInteraction()
}, {1: "infection"})
# Environment construction.
environment = BehaviorSwitcher({}, {})
# Results construction.
result = StandardResult(1)
# Condition construction.
condition = AllInfected()
# Simulation construction.
self.simulation = Simulation(network, interactions, environment,
result, condition)
simulation_result = self.simulation.run()
class SteelsClassifier:
"""
Classifier founded on Steels and Belpaeme multi-agent network and interactions concept.
:param classifiers: classifiers that will be used with agents creation.
:type classifiers: list of classifiers.
:param string role_model: the way of assign agents to roles. Described in GuessingGame.
:param string topology: the name of topology used in classifier.
:param integer iteration_number: the number of iteration.
"""
def __init__(
self,
classifiers=None,
role_model="RANDOM",
topology="clique",
iteration_number=1000,
alpha=0.99,
good_agent_measure=0.95,
):
self.classifiers = classifiers
self.alpha = alpha
self.role_model = role_model
self.good_agent_measure = good_agent_measure
self.simulation = None
self.topology = topology
self.result = None
self.iteration_number = iteration_number
self.condition = IterationCondition(self.iteration_number)
self.interactions = BehaviorSwitcher(
GuessingGame(good_agent_measure=self.good_agent_measure, role_model=self.role_model)
)
def clone(self):
return type(self)(
classifiers=self.classifiers,
role_model=self.role_model,
topology=self.topology,
iteration_number=self.iteration_number,
alpha=self.alpha,
good_agent_measure=self.good_agent_measure,
)
def get_params(self, deep):
return {
"classifiers": self.classifiers,
"role_model": self.role_model,
"topology": self.topology,
"iteration_number": self.iteration_number,
"alpha": self.alpha,
"good_agent_measure": self.good_agent_measure,
}
def fit(self, x, y):
"""
Fit the steels classifier according to the given training data.
:param list x: samples.
:param list y: samples' classes.
"""
environment = Environment(x, y)
agents = {}
if self.classifiers is None:
for _ in range(15):
agent = SteelsClassificationAgent(alpha=self.alpha)
agents[agent.id] = agent
else:
for classifier in self.classifiers:
agent = SteelsClassificationAgent(classifier=classifier, alpha=self.alpha)
agents[agent.id] = agent
for agent in agents.values():
agent.set_fitness("DG", CurrentFitness())
agent.set_fitness("GG", CurrentFitness())
network = Network(agents, {1: generate_topology(self.topology, agents_names=agents.keys())})
self.simulation = Simulation(
network, self.interactions, BehaviorSwitcher(environment), SteelsClassifierResults(), self.condition
)
self.result = self.simulation.run()
def predict(self, samples):
"""
:param list samples: the samples which classes are predicted.
:raise: **NotFittedError** - if no data have been fitted yet.
:return: the predicted classes of sample.
:rtype: list
"""
if self.result is not None:
return self.result.predict(samples)
else:
raise NotFittedError
