public async Task TestAzureTrainer()
{
using (var trainer = new OnlineTrainerWrapper("--cb_explore_adf --epsilon 0.2 -q ab"))
{
trainer.Blobs.Cleanup().Wait();
// generate data
var data = GenerateData(100).ToList();
var dataMap = data.ToDictionary(d => d.EventId, d => d);
// start listening for event hub
await trainer.StartAsync(new CountingCheckpointPolicy(data.Count));
// send data to event hub
trainer.SendData(data);
// wait for trainer to checkpoint
await trainer.PollTrainerCheckpoint(blobs => blobs.ModelBlobs.Count > 0 && blobs.ModelTrackbackBlobs.Count > 0 && blobs.StateJsonBlobs.Count > 0);
// download & parse trackback file
trainer.Blobs.DownloadTrackbacksOrderedByTime();
Assert.AreEqual(1, trainer.Blobs.Trackbacks.Count);
var trackback = trainer.Blobs.Trackbacks[0];
Assert.AreEqual(data.Count, trackback.EventIds.Count);
Assert.AreEqual(1, trainer.Blobs.ModelBlobs.Count);
trainer.TrainOffline("train a model for this set of events", trackback.ModelId, dataMap, trackback.EventIds, trainer.Blobs.ModelBlobs[0].Uri);
}
}
private async Task <OnlineTrainerWrapper> RunTrainer(string args, IEnumerable <Context> data, Dictionary <string, Context> dataMap, int expectedNumStates, bool cleanBlobs)
{
var trainer = new OnlineTrainerWrapper("--cb_explore_adf --epsilon 0.1 -q ab -l 0.1");
if (cleanBlobs)
{
trainer.Blobs.Cleanup().Wait();
}
// start listening for event hub
await trainer.StartAsync(new CountingCheckpointPolicy(100));
// send data to event hub
trainer.SendData(data);
await trainer.PollTrainerCheckpoint(blobs =>
blobs.ModelBlobs.Count == expectedNumStates &&
blobs.ModelTrackbackBlobs.Count == expectedNumStates &&
blobs.StateJsonBlobs.Count == expectedNumStates);
// download & parse trackback file
trainer.Blobs.DownloadTrackbacksOrderedByTime();
foreach (var trackback in trainer.Blobs.Trackbacks)
{
// due to checkpoint policy = 100
Assert.AreEqual(100, trackback.EventIds.Count, $"{trackback.Blob.Uri} does not contain the expected 100 events. Actual: {trackback.EventIds.Count}");
}
return(trainer);
}