func (c *Column) LearnSequence(learnState data.Bitset) {
logEnabled := log.HtmLogger.Enabled()
if learnState.IsZero() {
// Select the learning cell, but don't increment the target.
c.learning = c.learningTarget
if logEnabled {
log.HtmLogger.Printf("\t(%d, %d)=%04d: skip learning empty sequence",
c.Index, c.learning, c.CellId(c.learning))
}
return
}
cell, sIndex, _ := c.FindBestSegment(learnState, 1, true)
if sIndex >= 0 {
if logEnabled {
log.HtmLogger.Printf("\t(%d, %d)=%04d: Will reinforce segment: %v",
c.Index, cell, c.CellId(cell), c.distal[cell].Segment(sIndex))
}
} else {
if logEnabled {
log.HtmLogger.Printf("\t(%d, %d)=%04d: Will learn a new segment.",
c.Index, c.learningTarget, c.CellId(c.learningTarget))
}
cell = c.learningTarget
c.learningTarget = (c.learningTarget + 1) % c.Height()
sIndex = -1
}
c.learning = cell
update := c.distal[cell].CreateUpdate(sIndex, learnState, 1)
if logEnabled {
log.HtmLogger.Printf("\tLearning sequence %v => (%d, %d)=%04d",
update, c.Index, cell, c.CellId(cell))
}
c.distal[cell].Apply(update, true)
}
