func (ds *DendriteSegment) broaden(input data.Bitset, minOverlap int) (overlapCount int) {
overlapCount = input.Overlap(ds.Connected())
threshold := ds.Config().Threshold
newPermanence := ds.Config().Minimum + ds.Boost
if newPermanence > threshold {
newPermanence = threshold
}
newSynapses := input.Clone()
newSynapses.AndNot(ds.ReceptiveField())
newSynapses.Foreach(func(k int) {
v := ds.Get(k)
if v < newPermanence {
ds.Set(k, newPermanence)
}
})
ds.overlapHistory.Record(overlapCount >= minOverlap)
if avg, ok := ds.overlapHistory.Average(); ok && avg < ds.MinActivityRatio {
for k, v := range ds.permanence {
ds.Set(k, v*1.01)
}
}
return
}
