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Add LearnerObserver. This enables usage of BIDViz #159

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Add LearnerObserver. This enables usage of BIDViz #159

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12 changes: 12 additions & 0 deletions src/main/scala/BIDMach/Learner.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,9 @@ case class Learner(
if (opts.updateAll) {
model.dobatchg(mats, ipass, here);
if (mixins != null) mixins map (_ compute(mats, here));
if (opts.observer != null) {
opts.observer.notify(ipass, model, mats)
}
if (updater != null) updater.update(ipass, here, gprogress);
}
val scores = model.evalbatchg(mats, ipass, here);
Expand All @@ -144,6 +147,9 @@ case class Learner(
} else {
model.dobatchg(mats, ipass, here)
if (mixins != null) mixins map (_ compute(mats, here))
if (opts.observer != null) {
opts.observer.notify(ipass, model, mats)
}
if (updater != null) updater.update(ipass, here, gprogress)
}
if (datasource.opts.putBack >= 0) datasource.putBack(mats, datasource.opts.putBack)
Expand Down Expand Up @@ -814,6 +820,11 @@ class ParLearnerF(
}

object Learner {
trait LearnerObserver {
def init = {}
def cleanup = {}
def notify(ipass:Int, model:Model, minibatch:Array[Mat]) = {}
}

class Options extends BIDMat.Opts {
var npasses = 2;
Expand All @@ -827,6 +838,7 @@ object Learner {
var cumScore = 0;
var checkPointFile:String = null;
var checkPointInterval = 0f;
var observer: LearnerObserver = null;
}

def numBytes(mat:Mat):Long = {
Expand Down