Beispiel #1
0
func findDownstreamNodeId(cortex *ng.Cortex, layerMap ng.LayerToNodeIdMap, fromLayer float64) *ng.NodeId {

	numAttempts := len(cortex.AllNodeIds()) * 5

	for i := 0; i < numAttempts; i++ {

		downstreamNodeId := layerMap.ChooseNodeIdFollowingLayer(fromLayer)

		if downstreamNodeId == nil {
			log.Printf("findDownstreamNodeId unable to find downstream neuron, cannot add neuron")
			return nil
		}
		if downstreamNodeId.NodeType == ng.ACTUATOR {
			// make sure it has capacity for new incoming
			actuator := cortex.FindActuator(downstreamNodeId)
			if actuator.CanAddInboundConnection() == false {
				continue
			}
		}
		return downstreamNodeId
	}

	return nil

}
Beispiel #2
0
// Find a nodeId suitable for use as an outbound node for a newly created
// neuron.  This can either be a either another neuron node (including
// the new neuron itself), or an actuator (if it has space), but it cannot
// be a sensor node
func findRecurrentOutboundNodeId(cortex *ng.Cortex, layerMap ng.LayerToNodeIdMap, fromLayer float64) *ng.NodeId {

	numAttempts := len(cortex.AllNodeIds()) * 5

	keys := layerMap.Keys()

	sensorLayer := keys[0]

	for i := 0; i < numAttempts; i++ {
		chosenNodeId := layerMap.ChooseNodeIdFollowingLayer(sensorLayer)
		if chosenNodeId.NodeType == ng.ACTUATOR {
			// make sure it has capacity for new incoming
			actuator := cortex.FindActuator(chosenNodeId)
			if actuator.CanAddInboundConnection() == false {
				continue
			}
		}
		return chosenNodeId

	}

	return nil

}