Code from BasicOptimizer.scala:75 executed in 29.43 seconds (0.468 gc):
val lineSearchInstance: LineSearchStrategy = lineSearchFactory
IterativeTrainer.wrap(trainable)
.setOrientation(orientation())
.setMonitor(new TrainingMonitor() {
override def clear(): Unit = trainingMonitor.clear()
override def log(msg: String): Unit = trainingMonitor.log(msg)
override def onStepFail(currentPoint: Step): Boolean = {
BasicOptimizer.this.onStepFail(trainable, currentPoint)
}
override def onStepComplete(currentPoint: Step): Unit = {
if (0 < logEvery && (0 == currentPoint.iteration % logEvery || currentPoint.iteration < logEvery)) {
val image = currentImage
timelineAnimation += image
val caption = "Iteration " + currentPoint.iteration
out.p(caption + "\n" + out.jpg(image, caption))
}
BasicOptimizer.this.onStepComplete(trainable, currentPoint)
trainingMonitor.onStepComplete(currentPoint)
super.onStepComplete(currentPoint)
}
})
.setTimeout(trainingMinutes, TimeUnit.MINUTES)
.setMaxIterations(trainingIterations)
.setLineSearchFactory((_: CharSequence) => lineSearchInstance)
.setTerminateThreshold(java.lang.Double.NEGATIVE_INFINITY)
.runAndFree
.asInstanceOf[lang.Double]
Reset training subject: 909172083414500
Reset training subject: 909172546147300
Adding measurement 47dd7b9a to history. Total: 0
LBFGS Accumulation History: 1 points
Constructing line search parameters: GD+Trust
th(0)=1.5669799149036407;dx=-1.029998747439374E-6
New Minimum: 1.5669799149036407 > 1.5669785737991333
WOLFE (weak): th(2.154434690031884)=1.5669785737991333; dx=-1.0299730288346564E-6 evalInputDelta=1.341104507446289E-6
New Minimum: 1.5669785737991333 > 1.5669772326946259
WOLFE (weak): th(4.308869380063768)=1.5669772326946259; dx=-1.029970085409071E-6 evalInputDelta=2.682209014892578E-6
New Minimum: 1.5669772326946259 > 1.566971480846405
WOLFE (weak): th(12.926608140191302)=1.566971480846405; dx=-1.0299485680767241E-6 evalInputDelta=8.434057235717773E-6
New Minimum: 1.566971480846405 > 1.566946193575859
WOLFE (weak): th(51.70643256076521)=1.566946193575859; dx=-1.0301579578493423E-6 evalInputDelta=3.3721327781677246E-5
New Minimum: 1.566946193575859 > 1.5668113082647324
WOLFE (weak): th(258.53216280382605)=1.5668113082647324; dx=-1.030324808078514E-6 evalInputDelta=1.6860663890838623E-4
New Minimum: 1.5668113082647324 > 1.5659658312797546
WOLFE (weak): th(1551.1929768229563)=1.5659658312797546; dx=-1.0280068385247058E-6 evalInputDelta=0.0010140836238861084
New Minimum: 1.5659658312797546 > 1.5597572326660156
WOLFE (weak): th(10858.350837760694)=1.5597572326660156; dx=-1.014976721485608E-6 evalInputDelta=0.007222682237625122
New Minimum: 1.5597572326660156 > 1.5047556161880493
END: th(86866.80670208555)=1.5047556161880493; dx=-8.549839180837226E-7 evalInputDelta=0.06222429871559143
Fitness changed from 1.5669799149036407 to 1.5047556161880493
Iteration 1 complete. Error: 1.5047556161880493 Total: 5.4537; Orientation: 0.0036; Line Search: 4.0968
<a id="p-3"></a>Iteration 1
<a id="p-2"></a>
Adding measurement 717d6487 to history. Total: 1
LBFGS Accumulation History: 2 points
th(0)=1.5047556161880493;dx=-1.095810753724622
...skipping 10114 bytes...
ng measurement 2c1e93ff to history. Total: 3
Rejected: LBFGS Orientation magnitude: 2.026e+03, gradient 4.595e-05, dot -0.592; [56d0c476-7614-4751-8687-1aa265313238 = 1.000/1.000e+00]
Orientation rejected. Popping history element from -0.35483314096927643, -0.3687223792076111, -0.3790566623210907, -0.3852917402982712
LBFGS Accumulation History: 3 points
Removed measurement 22bfbb14 to history. Total: 4
th(0)=-0.3852917402982712;dx=-2.1114092639180546E-9
Armijo: th(3.898934620234736E7)=-0.3203709274530411; dx=3.330640618031059E-9 evalInputDelta=-0.0649208128452301
Armijo: th(1.949467310117368E7)=-0.38142943382263184; dx=1.4371852094891505E-9 evalInputDelta=-0.0038623064756393433
New Minimum: -0.3852917402982712 > -0.3925749361515045
END: th(6498224.367057893)=-0.3925749361515045; dx=-9.170990049109762E-10 evalInputDelta=0.007283195853233337
Fitness changed from -0.3852917402982712 to -0.3925749361515045
Iteration 14 complete. Error: -0.3925749361515045 Total: 2.3814; Orientation: 0.1055; Line Search: 1.8309
Adding measurement 38cd4663 to history. Total: 3
Rejected: LBFGS Orientation magnitude: 1.951e+03, gradient 3.069e-05, dot -0.912; [56d0c476-7614-4751-8687-1aa265313238 = 1.000/1.000e+00]
Orientation rejected. Popping history element from -0.3687223792076111, -0.3790566623210907, -0.3852917402982712, -0.3925749361515045
LBFGS Accumulation History: 3 points
Removed measurement 6e3a9e71 to history. Total: 4
th(0)=-0.3925749361515045;dx=-9.416986176193715E-10
New Minimum: -0.3925749361515045 > -0.3981310725212097
END: th(1.4000000000000007E7)=-0.3981310725212097; dx=-4.066950036441075E-10 evalInputDelta=0.0055561363697052
Fitness changed from -0.3925749361515045 to -0.3981310725212097
Iteration 15 complete. Error: -0.3981310725212097 Total: 1.4513; Orientation: 0.1047; Line Search: 0.9072
<a id="p-15"></a>Iteration 15
<a id="p-14"></a>
Final threshold in iteration 16: -0.3981310725212097 (> -Infinity) after 29.432s (< 1800.000s)
-0.3981310725212097