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Aug 29, 2018
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Convert ML.Sweeper usages of SubComponent to IComponentFactory. #734

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4 changes: 1 addition & 3 deletions src/Microsoft.ML.PipelineInference/AutoMlEngines/RocketEngine.cs
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Original file line number Diff line number Diff line change
@@ -101,9 +101,7 @@ private void SampleHyperparameters(RecipeInference.SuggestedRecipe.SuggestedLear
// If first time optimizing hyperparams, create new hyperparameter sweeper.
if (!_hyperSweepers.ContainsKey(learner.LearnerName))
{
var paramTups = AutoMlUtils.ConvertToSweepArgumentStrings(learner.PipelineNode.SweepParams);
var sps = paramTups.Select(tup =>
new SubComponent<IValueGenerator, SignatureSweeperParameter>(tup.Item1, tup.Item2)).ToArray();
var sps = AutoMlUtils.ConvertToComponentFactories(learner.PipelineNode.SweepParams);
if (sps.Length > 0)
{
_hyperSweepers[learner.LearnerName] = new KdoSweeper(Env,
91 changes: 53 additions & 38 deletions src/Microsoft.ML.PipelineInference/AutoMlUtils.cs
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Original file line number Diff line number Diff line change
@@ -579,58 +579,73 @@ public static IRunResult[] ConvertToRunResults(PipelinePattern[] history, bool i
{
return history.Select(h => ConvertToRunResult(h.Learner, h.PerformanceSummary, isMetricMaximizing)).ToArray();
}

/// <summary>
/// Method to convert set of sweepable hyperparameters into strings of a format understood
/// Method to convert set of sweepable hyperparameters into <see cref="IComponentFactory"/> instances used
/// by the current smart hyperparameter sweepers.
/// </summary>
public static Tuple<string, string[]>[] ConvertToSweepArgumentStrings(TlcModule.SweepableParamAttribute[] hps)
public static IComponentFactory<IValueGenerator>[] ConvertToComponentFactories(TlcModule.SweepableParamAttribute[] hps)
{
var results = new Tuple<string, string[]>[hps.Length];
var results = new IComponentFactory<IValueGenerator>[hps.Length];

for (int i = 0; i < hps.Length; i++)
{
string logSetting;
string numStepsSetting;
string stepSizeSetting;
switch (hps[i])
{
case TlcModule.SweepableDiscreteParamAttribute dp:
results[i] = new Tuple<string, string[]>("dp",
new[] { $"name={dp.Name}", $"{string.Join(" ", dp.Options.Select(o => $"v={o}"))}" });
results[i] = ComponentFactoryUtils.CreateFromFunction(env =>
{
var dpArgs = new DiscreteParamArguments()
{
Name = dp.Name,
Values = dp.Options.Select(o => o.ToString()).ToArray()
};
return new DiscreteValueGenerator(dpArgs);
});
break;

case TlcModule.SweepableFloatParamAttribute fp:
logSetting = fp.IsLogScale ? "log+" : "";
numStepsSetting = fp.NumSteps != null ? $"numsteps={fp.NumSteps}" : "";
stepSizeSetting = fp.StepSize != null ? $"stepsize={fp.StepSize}" : "";

results[i] =
new Tuple<string, string[]>("fp",
new[]
{
$"name={fp.Name}",
$"min={fp.Min}",
$"max={fp.Max}",
logSetting,
numStepsSetting,
stepSizeSetting
});
results[i] = ComponentFactoryUtils.CreateFromFunction(env =>
{
var fpArgs = new FloatParamArguments()
{
Name = fp.Name,
Min = fp.Min,
Max = fp.Max,
LogBase = fp.IsLogScale,
};
if (fp.NumSteps.HasValue)
{
fpArgs.NumSteps = fp.NumSteps.Value;
}
if (fp.StepSize.HasValue)
{
fpArgs.StepSize = fp.StepSize.Value;
}
return new FloatValueGenerator(fpArgs);
});
break;

case TlcModule.SweepableLongParamAttribute lp:
logSetting = lp.IsLogScale ? "logbase+" : "";
numStepsSetting = lp.NumSteps != null ? $"numsteps={lp.NumSteps}" : "";
stepSizeSetting = lp.StepSize != null ? $"stepsize={lp.StepSize}" : "";

results[i] =
new Tuple<string, string[]>("lp",
new[]
{
$"name={lp.Name}",
$"min={lp.Min}",
$"max={lp.Max}",
logSetting,
numStepsSetting,
stepSizeSetting
});
results[i] = ComponentFactoryUtils.CreateFromFunction(env =>
{
var lpArgs = new LongParamArguments()
{
Name = lp.Name,
Min = lp.Min,
Max = lp.Max,
LogBase = lp.IsLogScale
};
if (lp.NumSteps.HasValue)
{
lpArgs.NumSteps = lp.NumSteps.Value;
}
if (lp.StepSize.HasValue)
{
lpArgs.StepSize = lp.StepSize.Value;
}
return new LongValueGenerator(lpArgs);
});
break;
}
}
7 changes: 4 additions & 3 deletions src/Microsoft.ML.Sweeper/Algorithms/Grid.cs
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Original file line number Diff line number Diff line change
@@ -6,6 +6,7 @@
using System.Linq;
using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.CommandLine;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.Internal.Utilities;
using Microsoft.ML.Runtime.Sweeper;

@@ -28,8 +29,8 @@ public abstract class SweeperBase : ISweeper
{
public class ArgumentsBase
{
[Argument(ArgumentType.Multiple, HelpText = "Swept parameters", ShortName = "p")]
public SubComponent<IValueGenerator, SignatureSweeperParameter>[] SweptParameters;
[Argument(ArgumentType.Multiple, HelpText = "Swept parameters", ShortName = "p", SignatureType = typeof(SignatureSweeperParameter))]
public IComponentFactory<IValueGenerator>[] SweptParameters;

[Argument(ArgumentType.LastOccurenceWins, HelpText = "Number of tries to generate distinct parameter sets.", ShortName = "r")]
public int Retries = 10;
@@ -49,7 +50,7 @@ protected SweeperBase(ArgumentsBase args, IHostEnvironment env, string name)

_args = args;

SweepParameters = args.SweptParameters.Select(p => p.CreateInstance(Host)).ToArray();
SweepParameters = args.SweptParameters.Select(p => p.CreateComponent(Host)).ToArray();
}

protected SweeperBase(ArgumentsBase args, IHostEnvironment env, IValueGenerator[] sweepParameters, string name)
11 changes: 6 additions & 5 deletions src/Microsoft.ML.Sweeper/Algorithms/KdoSweeper.cs
View file
Original file line number Diff line number Diff line change
@@ -9,9 +9,10 @@
using System.Linq;
using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.CommandLine;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.FastTree.Internal;
using Microsoft.ML.Runtime.Internal.Utilities;
using Microsoft.ML.Runtime.Sweeper.Algorithms;
using Microsoft.ML.Runtime.FastTree.Internal;

[assembly: LoadableClass(typeof(KdoSweeper), typeof(KdoSweeper.Arguments), typeof(SignatureSweeper),
"KDO Sweeper", "KDOSweeper", "KDO")]
@@ -39,8 +40,8 @@ public sealed class KdoSweeper : ISweeper
{
public sealed class Arguments
{
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p")]
public SubComponent<IValueGenerator, SignatureSweeperParameter>[] SweptParameters;
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p", SignatureType = typeof(SignatureSweeperParameter))]
public IComponentFactory<IValueGenerator>[] SweptParameters;

[Argument(ArgumentType.AtMostOnce, HelpText = "Seed for the random number generator for the first batch sweeper", ShortName = "seed")]
public int RandomSeed;
@@ -99,7 +100,7 @@ public KdoSweeper(IHostEnvironment env, Arguments args)

_args = args;
_host.CheckUserArg(Utils.Size(args.SweptParameters) > 0, nameof(args.SweptParameters), "KDO sweeper needs at least one parameter to sweep over");
_sweepParameters = args.SweptParameters.Select(p => p.CreateInstance(_host)).ToArray();
_sweepParameters = args.SweptParameters.Select(p => p.CreateComponent(_host)).ToArray();
_randomSweeper = new UniformRandomSweeper(env, new SweeperBase.ArgumentsBase(), _sweepParameters);
_redundantSweeper = new UniformRandomSweeper(env, new SweeperBase.ArgumentsBase { Retries = 0 }, _sweepParameters);
_spu = new SweeperProbabilityUtils(_host);
@@ -144,7 +145,7 @@ public ParameterSet[] ProposeSweeps(int maxSweeps, IEnumerable<IRunResult> previ
// I'm not sure if this is too much detail, but it might be.
string errorMessage = $"Error: Sweep run results are missing metric values. \n\n" +
$"NOTE: Default metric of 'AUC' only viable for binary classification problems. \n" +
$"Please include an evaluator (ev) subcomponent with an appropriate metric specified for your task type.\n\n" +
$"Please include an evaluator (ev) component with an appropriate metric specified for your task type.\n\n" +
"Example RSP using alternate metric (i.e., AccuracyMicro):\nrunner=Local{\n\tev=Tlc{m=AccuracyMicro}\n\tpattern={...etc...}\n}";
throw _host.Except(new Exception(errorMessage), errorMessage);
}
13 changes: 7 additions & 6 deletions src/Microsoft.ML.Sweeper/Algorithms/NelderMead.cs
View file
Original file line number Diff line number Diff line change
@@ -9,6 +9,7 @@
using System.Linq;
using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.CommandLine;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.Numeric;
using Microsoft.ML.Runtime.Sweeper;

@@ -21,11 +22,11 @@ public sealed class NelderMeadSweeper : ISweeper
{
public sealed class Arguments
{
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p")]
public SubComponent[] SweptParameters;
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p", SignatureType = typeof(SignatureSweeperParameter))]
public IComponentFactory<IValueGenerator>[] SweptParameters;

[Argument(ArgumentType.LastOccurenceWins, HelpText = "The sweeper used to get the initial results.", ShortName = "init")]
public SubComponent<ISweeper, SignatureSweeperFromParameterList> FirstBatchSweeper = new SubComponent<ISweeper, SignatureSweeperFromParameterList>("ldrandpl");
[Argument(ArgumentType.LastOccurenceWins, HelpText = "The sweeper used to get the initial results.", ShortName = "init", SignatureType = typeof(SignatureSweeperFromParameterList))]
public IComponentFactory<IValueGenerator[], ISweeper> FirstBatchSweeper;

[Argument(ArgumentType.AtMostOnce, HelpText = "Seed for the random number generator for the first batch sweeper", ShortName = "seed")]
public int RandomSeed;
@@ -100,7 +101,7 @@ public NelderMeadSweeper(IHostEnvironment env, Arguments args)
_sweepParameters = new List<IValueGenerator>();
foreach (var sweptParameter in args.SweptParameters)
{
var parameter = ComponentCatalog.CreateInstance<IValueGenerator, SignatureSweeperParameter>(env, sweptParameter);
var parameter = sweptParameter.CreateComponent(env);
// REVIEW: ideas about how to support discrete values:
// 1. assign each discrete value a random number (1-n) to make mirroring possible
// 2. each time we need to mirror a discrete value, sample from the remaining value
@@ -112,7 +113,7 @@ public NelderMeadSweeper(IHostEnvironment env, Arguments args)
_sweepParameters.Add(parameterNumeric);
}

_initSweeper = args.FirstBatchSweeper.CreateInstance(env, new object[] { _sweepParameters.ToArray() });
_initSweeper = args.FirstBatchSweeper.CreateComponent(env, _sweepParameters.ToArray());
_dim = _sweepParameters.Count;
env.CheckUserArg(_dim > 1, nameof(args.SweptParameters), "Nelder-Mead sweeper needs at least two parameters to sweep over.");

7 changes: 4 additions & 3 deletions src/Microsoft.ML.Sweeper/Algorithms/SmacSweeper.cs
View file
Original file line number Diff line number Diff line change
@@ -12,6 +12,7 @@
using Microsoft.ML.Runtime.Sweeper;

using Microsoft.ML.Runtime.Data;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.FastTree;
using Microsoft.ML.Runtime.FastTree.Internal;
using Microsoft.ML.Runtime.Internal.Utilities;
@@ -28,8 +29,8 @@ public sealed class SmacSweeper : ISweeper
{
public sealed class Arguments
{
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p")]
public SubComponent<IValueGenerator, SignatureSweeperParameter>[] SweptParameters;
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Swept parameters", ShortName = "p", SignatureType = typeof(SignatureSweeperParameter))]
public IComponentFactory<IValueGenerator>[] SweptParameters;

[Argument(ArgumentType.AtMostOnce, HelpText = "Seed for the random number generator for the first batch sweeper", ShortName = "seed")]
public int RandomSeed;
@@ -83,7 +84,7 @@ public SmacSweeper(IHostEnvironment env, Arguments args)

_args = args;
_host.CheckUserArg(Utils.Size(args.SweptParameters) > 0, nameof(args.SweptParameters), "SMAC sweeper needs at least one parameter to sweep over");
_sweepParameters = args.SweptParameters.Select(p => p.CreateInstance(_host)).ToArray();
_sweepParameters = args.SweptParameters.Select(p => p.CreateComponent(_host)).ToArray();
_randomSweeper = new UniformRandomSweeper(env, new SweeperBase.ArgumentsBase(), _sweepParameters);
}

9 changes: 5 additions & 4 deletions src/Microsoft.ML.Sweeper/AsyncSweeper.cs
View file
Original file line number Diff line number Diff line change
@@ -10,6 +10,7 @@

using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.CommandLine;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.Internal.Utilities;
using Microsoft.ML.Runtime.Sweeper;

@@ -152,8 +153,8 @@ public sealed class DeterministicSweeperAsync : IAsyncSweeper, IDisposable
{
public sealed class Arguments
{
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Base sweeper", ShortName = "sweeper")]
public SubComponent<ISweeper, SignatureSweeper> Sweeper;
[Argument(ArgumentType.Multiple | ArgumentType.Required, HelpText = "Base sweeper", ShortName = "sweeper", SignatureType = typeof(SignatureSweeper))]
public IComponentFactory<ISweeper> Sweeper;

[Argument(ArgumentType.AtMostOnce, HelpText = "Sweep batch size", ShortName = "batchsize")]
public int BatchSize = 5;
@@ -193,13 +194,13 @@ public sealed class Arguments
public DeterministicSweeperAsync(IHostEnvironment env, Arguments args)
{
_host = env.Register("DeterministicSweeperAsync", args.RandomSeed);
_host.CheckUserArg(args.Sweeper.IsGood(), nameof(args.Sweeper), "Please specify a sweeper");
_host.CheckValue(args.Sweeper, nameof(args.Sweeper), "Please specify a sweeper");
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CheckValue [](start = 18, length = 10)

why is this changed to CheckValue from CheckUserArgs?

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SubComponents have an IsGood() extension method that check both for null and for a non-empty "Kind" property. CheckUserArg only has an overload for bool, which IsGood() returns.

Now that this is an IComponentFactory, the only thing we can check for is null - which is what CheckValue does.

_host.CheckUserArg(args.BatchSize > 0, nameof(args.BatchSize), "Batch size must be positive");
_host.CheckUserArg(args.Relaxation >= 0, nameof(args.Relaxation), "Synchronization relaxation must be non-negative");
_host.CheckUserArg(args.Relaxation <= args.BatchSize, nameof(args.Relaxation),
"Synchronization relaxation cannot be larger than batch size");
_batchSize = args.BatchSize;
_baseSweeper = args.Sweeper.CreateInstance(_host);
_baseSweeper = args.Sweeper.CreateComponent(_host);
_host.CheckUserArg(!(_baseSweeper is NelderMeadSweeper) || args.Relaxation == 0, nameof(args.Relaxation),
"Nelder-Mead requires full synchronization (relaxation = 0)");

9 changes: 5 additions & 4 deletions src/Microsoft.ML.Sweeper/ConfigRunner.cs
View file
Original file line number Diff line number Diff line change
@@ -11,6 +11,7 @@
using Microsoft.ML;
using Microsoft.ML.Runtime;
using Microsoft.ML.Runtime.CommandLine;
using Microsoft.ML.Runtime.EntryPoints;
using Microsoft.ML.Runtime.Internal.Utilities;
using Microsoft.ML.Runtime.Sweeper;

@@ -46,9 +47,9 @@ public abstract class ArgumentsBase
[Argument(ArgumentType.AtMostOnce, HelpText = "The executable name, including the path (the default is MAML.exe)")]
public string Exe;

[Argument(ArgumentType.Multiple, HelpText = "Specify how to extract the metrics from the result file.", ShortName = "ev")]
public SubComponent<ISweepResultEvaluator<string>, SignatureSweepResultEvaluator> ResultProcessor
= new SubComponent<ISweepResultEvaluator<string>, SignatureSweepResultEvaluator>("Tlc");
[Argument(ArgumentType.Multiple, HelpText = "Specify how to extract the metrics from the result file.", ShortName = "ev", SignatureType = typeof(SignatureSweepResultEvaluator))]
public IComponentFactory<ISweepResultEvaluator<string>> ResultProcessor = ComponentFactoryUtils.CreateFromFunction(
env => new InternalSweepResultEvaluator(env, new InternalSweepResultEvaluator.Arguments()));

[Argument(ArgumentType.AtMostOnce, Hide = true)]
public bool CalledFromUnitTestSuite;
@@ -74,7 +75,7 @@ protected ExeConfigRunnerBase(ArgumentsBase args, IHostEnvironment env, string r
ArgsPattern = args.ArgsPattern;
OutputFolder = GetOutputFolderPath(args.OutputFolderName);
Prefix = string.IsNullOrEmpty(args.Prefix) ? "" : args.Prefix;
ResultProcessor = args.ResultProcessor.CreateInstance(Host);
ResultProcessor = args.ResultProcessor.CreateComponent(Host);
_calledFromUnitTestSuite = args.CalledFromUnitTestSuite;
RunNums = new List<int>();
}
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