def setSynapse(self, axon, dendrite, weight):
axon_id = mutil.extractNeuronId(axon)
dendrite_id = mutil.extractNeuronId(dendrite)
#print 'setting synapse from', axon_id, 'to', dendrite_id, 'with weight', weight
mutil.makeDictIfNot(self.synapses_by_dendrite, dendrite_id)
mutil.makeDictIfNot(self.synapses_by_axon, axon_id)
self.synapses_by_dendrite[dendrite_id][axon_id] = weight
self.synapses_by_axon[axon_id][dendrite_id] = weight
def setSynapse(self, axon, dendrite, weight):
axon_id = mutil.extractNeuronId(axon)
dendrite_id = mutil.extractNeuronId(dendrite)
#print 'setting synapse from', axon_id, 'to', dendrite_id, 'with weight', weight
mutil.makeDictIfNot(self.synapses_by_dendrite, dendrite_id)
mutil.makeDictIfNot(self.synapses_by_axon, axon_id)
self.synapses_by_dendrite[dendrite_id][axon_id] = weight
self.synapses_by_axon[axon_id][dendrite_id] = weight
def adjustWeights(self):
new_weights = dict()
for axon_id in sorted(self.neurons.keys(), reverse=False):
mutil.makeDictIfNot(new_weights, axon_id)
for dendrite_id in self.getAllSynapsesByAxon(axon_id):
mutil.makeDictIfNot(new_weights[axon_id], dendrite_id)
weight = self.weightAtSynapse(axon_id, dendrite_id)
error = self.getErrorAt(dendrite_id)
rate = self.learning_rate
derivative = self.derivativeOutputAt(dendrite_id)
output = self.outputAt(axon_id)
new_weights[axon_id][dendrite_id] = weight + rate * error * derivative * output
self.setSynapse(axon_id, dendrite_id, new_weights[axon_id][dendrite_id])
def adjustWeights(self):
new_weights = dict()
for axon_id in sorted(self.neurons.keys(), reverse=False):
mutil.makeDictIfNot(new_weights, axon_id)
for dendrite_id in self.getAllSynapsesByAxon(axon_id):
mutil.makeDictIfNot(new_weights[axon_id], dendrite_id)
weight = self.weightAtSynapse(axon_id, dendrite_id)
error = self.getErrorAt(dendrite_id)
rate = self.learning_rate
derivative = self.derivativeOutputAt(dendrite_id)
output = self.outputAt(axon_id)
new_weights[axon_id][
dendrite_id] = weight + rate * error * derivative * output
self.setSynapse(axon_id, dendrite_id,
new_weights[axon_id][dendrite_id])
