本文整理汇总了C#中VowpalWabbit类的典型用法代码示例。如果您正苦于以下问题：C# VowpalWabbit类的具体用法？C# VowpalWabbit怎么用？C# VowpalWabbit使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
VowpalWabbit类属于命名空间，在下文中一共展示了VowpalWabbit类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: TestID
public void TestID()
{
using (var vw = new VowpalWabbit("--id abc"))
{
Assert.AreEqual("abc", vw.ID);
vw.SaveModel("model");
vw.ID = "def";
vw.SaveModel("model.1");
}
using (var vw = new VowpalWabbit("-i model"))
{
Assert.AreEqual("abc", vw.ID);
}
using (var vw = new VowpalWabbit("-i model.1"))
{
Assert.AreEqual("def", vw.ID);
}
using (var vwm = new VowpalWabbitModel("-i model.1"))
{
Assert.AreEqual("def", vwm.ID);
using (var vw = new VowpalWabbit(new VowpalWabbitSettings(model: vwm)))
{
Assert.AreEqual("def", vw.ID);
Assert.AreEqual(vwm.ID, vw.ID);
}
}
}示例2: TestNull1
public void TestNull1()
{
using (var vw = new VowpalWabbit<Context, ADF>("--cb_adf --rank_all --interact ab"))
{
var ctx = new Context()
{
ID = 25,
Vector = null,
ActionDependentFeatures = new[] {
new ADF {
ADFID = "23"
}
}.ToList()
};
vw.Learn(ctx, ctx.ActionDependentFeatures, 0, new ContextualBanditLabel()
{
Action = 1,
Cost = 1,
Probability = 0.2f
});
var result = vw.Predict(ctx, ctx.ActionDependentFeatures);
Assert.AreEqual(1, result.Length);
}
}示例3: TestNull3
public void TestNull3()
{
using (var vw = new VowpalWabbit<Context, ADF>("--cb_adf --rank_all --interact ac"))
{
var ctx = new Context()
{
ID = 25,
Vector = new float[] { 3 },
VectorC = new float[] { 2, 2, 3 },
ActionDependentFeatures = new[] {
new ADF {
ADFID = "23",
}
}.ToList()
};
var label = new ContextualBanditLabel() {
Action = 1,
Cost= 1,
Probability = 0.2f
};
vw.Learn(ctx, ctx.ActionDependentFeatures, 0, label);
ctx.Vector = null;
vw.Learn(ctx, ctx.ActionDependentFeatures, 0, label);
ctx.Vector = new float[] { 2 };
ctx.VectorC = null;
vw.Learn(ctx, ctx.ActionDependentFeatures, 0, label);
ctx.Vector = null;
vw.Learn(ctx, ctx.ActionDependentFeatures, 0, label);
}
}示例4: TestExampleCacheForLearning
public void TestExampleCacheForLearning()
{
using (var vw = new VowpalWabbit<CachedData>(string.Empty))
{
vw.Learn(new CachedData(), new SimpleLabel());
}
}示例5: Test87
public void Test87()
{
using (var vw = new VowpalWabbit<DataString, DataStringADF>("--cb_adf --rank_all"))
{
var sampleData = CreateSampleCbAdfData();
var example = sampleData[0];
var result = vw.LearnAndPredict(example, example.ActionDependentFeatures, example.SelectedActionIndex, example.Label);
ReferenceEquals(example.ActionDependentFeatures[0], result[0]);
ReferenceEquals(example.ActionDependentFeatures[1], result[1]);
ReferenceEquals(example.ActionDependentFeatures[2], result[2]);
example = sampleData[1];
result = vw.LearnAndPredict(example, example.ActionDependentFeatures, example.SelectedActionIndex, example.Label);
ReferenceEquals(example.ActionDependentFeatures[0], result[1]);
ReferenceEquals(example.ActionDependentFeatures[1], result[0]);
example = sampleData[2];
result = vw.Predict(example, example.ActionDependentFeatures);
ReferenceEquals(example.ActionDependentFeatures[0], result[1]);
ReferenceEquals(example.ActionDependentFeatures[1], result[0]);
}
}示例6: Post
public async Task<HttpResponseMessage> Post()
{
var header = this.Request.Headers.SingleOrDefault(x => x.Key == "Authorization");
if (header.Value == null)
throw new UnauthorizedAccessException("AuthorizationToken missing");
var userToken = header.Value.First();
if (string.IsNullOrWhiteSpace(userToken) || userToken != ConfigurationManager.AppSettings["UserToken"])
return Request.CreateResponse(HttpStatusCode.Unauthorized);
if (this.metaData == null || lastDownload + TimeSpan.FromMinutes(1) < DateTime.Now)
{
var url = ConfigurationManager.AppSettings["DecisionServiceSettingsUrl"];
this.metaData = ApplicationMetadataUtil.DownloadMetadata<ApplicationClientMetadata>(url);
lastDownload = DateTime.Now;
}
using (var vw = new VowpalWabbit(new VowpalWabbitSettings(metaData.TrainArguments)
{
EnableStringExampleGeneration = true,
EnableStringFloatCompact = true
}))
using (var serializer = new VowpalWabbitJsonSerializer(vw))
using (var example = serializer.ParseAndCreate(new JsonTextReader(new StreamReader(await Request.Content.ReadAsStreamAsync()))))
{
return Request.CreateResponse(HttpStatusCode.OK, example.VowpalWabbitString);
}
}示例7: TestArguments
public void TestArguments()
{
using (var vw = new VowpalWabbit(new VowpalWabbitSettings("--cb_explore_adf --epsilon 0.3 --interact ud") { Verbose = true }))
{
// --cb_explore_adf --epsilon 0.3 --interact ud --cb_adf--csoaa_ldf multiline --csoaa_rank
Console.WriteLine(vw.Arguments.CommandLine);
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--cb_explore_adf"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--epsilon 0.3"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--interact ud"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_ldf multiline"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_rank"));
vw.SaveModel("args.model");
}
using (var vw = new VowpalWabbit(new VowpalWabbitSettings { ModelStream = File.Open("args.model", FileMode.Open) }))
{
Console.WriteLine(vw.Arguments.CommandLine);
// --no_stdin--bit_precision 18--cb_explore_adf--epsilon 0.300000--cb_adf--cb_type ips --csoaa_ldf multiline--csoaa_rank--interact ud
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--no_stdin"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--bit_precision 18"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--cb_explore_adf"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--epsilon 0.3"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--interact ud"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_ldf multiline"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_rank"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--cb_type ips"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_ldf multiline"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--interact ud"));
Assert.IsTrue(vw.Arguments.CommandLine.Contains("--csoaa_rank"));
}
}示例8: ExecuteTest
public static void ExecuteTest(int testCaseNr, string args, string input, string stderr, string predictFile)
{
using (var vw = new VowpalWabbit(args))
{
var multiline = IsMultilineData(input);
using (var streamReader = Open(input))
{
if (multiline)
{
var lines = new List<string>();
string dataLine;
while ((dataLine = streamReader.ReadLine()) != null)
{
if (string.IsNullOrWhiteSpace(dataLine))
{
if (lines.Count > 0)
{
if (args.Contains("-t")) // test only
vw.Predict(lines);
else
vw.Learn(lines);
}
lines.Clear();
continue;
}
lines.Add(dataLine);
}
}
else
{
string dataLine;
while ((dataLine = streamReader.ReadLine()) != null)
{
if (!string.IsNullOrWhiteSpace(predictFile) && File.Exists(predictFile))
{
float actualValue;
if (args.Contains("-t")) // test only
actualValue = vw.Predict(dataLine, VowpalWabbitPredictionType.Scalar);
else
actualValue = vw.Learn(dataLine, VowpalWabbitPredictionType.Scalar);
}
else
vw.Learn(dataLine);
}
}
if (vw.Arguments.NumPasses > 1)
vw.RunMultiPass();
else
vw.EndOfPass();
if (!string.IsNullOrWhiteSpace(stderr) && File.Exists(stderr))
VWTestHelper.AssertEqual(stderr, vw.PerformanceStatistics);
}
}
}示例9: VowpalWabbitJsonSerializer
/// <summary>
/// Initializes a new instance of the <see cref="VowpalWabbitJson"/> class.
/// </summary>
/// <param name="vw">The VW native instance.</param>
public VowpalWabbitJsonSerializer(VowpalWabbit vw)
{
Contract.Requires(vw != null);
this.vw = vw;
this.defaultMarshaller = new VowpalWabbitDefaultMarshaller();
this.jsonSerializer = new JsonSerializer();
}示例10: TestExampleCacheDisabledForLearning
public void TestExampleCacheDisabledForLearning()
{
using (var vw = new VowpalWabbit<CachedData>(new VowpalWabbitSettings(enableExampleCaching: false)))
{
vw.Learn(new CachedData(), new SimpleLabel());
}
}示例11: VowpalWabbitMultiworldTesting
/// <summary>
///
/// </summary>
/// <param name="vwModel">Optional model to see multiworld testing</param>
public VowpalWabbitMultiworldTesting(Stream vwModel = null)
{
var settings = vwModel == null ?
new VowpalWabbitSettings("--multiworld_test f") :
new VowpalWabbitSettings { ModelStream = vwModel };
this.vw = new VowpalWabbit<LearnedVsConstantPolicy>(settings);
}示例12: DisclaimerPredict
public DisclaimerPredict(string modelName, string dictionary, int dictionarySize, float cutoff)
{
//--quiet
// _vw = new VowpalWabbit(string.Format("-t -i {0} --quiet", modelName));
_vw = new VowpalWabbit(string.Format("-f {0} --loss_function logistic --passes 25 -c -l2", modelName));
_dictionary = new WordDictionary(dictionary, dictionarySize);
_cutoff = cutoff;
}示例13: Validate
internal static void Validate(string line, VowpalWabbitExample ex, IVowpalWabbitLabelComparator comparator, string args = null)
{
using (var vw = new VowpalWabbit(args))
using (var strExample = vw.ParseLine(line))
{
var diff = strExample.Diff(vw, ex, comparator);
Assert.IsNull(diff, diff + " generated string: '" + ex.VowpalWabbitString + "'");
}
}示例14: TestDynamic
public void TestDynamic()
{
// TODO: look into friend assemblies and how to figure if one is a friend
using (var vw = new VowpalWabbit("--cb_adf --rank_all"))
using (var vwDynamic = new VowpalWabbitDynamic(new VowpalWabbitSettings("--cb_adf --rank_all") { TypeInspector = JsonTypeInspector.Default }))
{
var expected = vw.Learn(new[] { "| q:1", "2:-3:0.9 | q:2", "| q:3" }, VowpalWabbitPredictionType.ActionScore);
var actual = vwDynamic.Learn(
new
{
_multi = new[]
{
new { q = 1 },
new { q = 2 },
new { q = 3 }
}
},
VowpalWabbitPredictionType.ActionScore,
new ContextualBanditLabel(0, -3, 0.9f),
1);
AssertAreEqual(expected, actual);
expected = vw.Learn(new[] { "| q:1", "2:-5:0.9 | q:2", "| q:3" }, VowpalWabbitPredictionType.ActionScore);
actual = vwDynamic.Learn(
new
{
_multi = new[]
{
new { q = 1 },
new { q = 2 },
new { q = 3 }
}
},
VowpalWabbitPredictionType.ActionScore,
new ContextualBanditLabel(0, -5, 0.9f),
1);
AssertAreEqual(expected, actual);
expected = vw.Learn(new[] { "| q:1", "| q:2", "3:-2:0.8 | q:3" }, VowpalWabbitPredictionType.ActionScore);
actual = vwDynamic.Learn(
new
{
_multi = new[]
{
new { q = 1 },
new { q = 2 },
new { q = 3 }
},
_labelIndex = 2,
_label_Action = 3,
_label_Cost = -2,
_label_Probability = 0.8
},
VowpalWabbitPredictionType.ActionScore);
AssertAreEqual(expected, actual);
}
}示例15: Ingest
private static void Ingest(VowpalWabbit vw, IEnumerable<List<string>> blocks)
{
foreach (var block in blocks)
{
vw.Learn(block);
}
vw.EndOfPass();
}