UInt Segment::computeActivity(const CState &activities, Real permConnected,
bool connectedSynapsesOnly) const
{
{ NTA_ASSERT(invariants()); }
UInt activity = 0;
if (connectedSynapsesOnly) {
for (UInt i = 0; i != size(); ++i)
if (activities.isSet(_synapses[i].srcCellIdx()) &&
(_synapses[i].permanence() >= permConnected))
activity++;
} else {
for (UInt i = 0; i != size(); ++i)
if (activities.isSet(_synapses[i].srcCellIdx()))
activity++;
}
return activity;
}
bool Segment::isActive(const CState &activities, Real permConnected,
UInt activationThreshold) const {
{ NTA_ASSERT(invariants()); }
UInt activity = 0;
if (_nConnected < activationThreshold)
return false;
// TODO: maintain nPermConnected incrementally??
for (UInt i = 0; i != size() && activity < activationThreshold; ++i)
if (_synapses[i].permanence() >= permConnected &&
activities.isSet(_synapses[i].srcCellIdx()))
activity++;
return activity >= activationThreshold;
}
