/// <summary> /// Initializes a new <see cref="VowpalWabbitInterfaceVisitor"/> instance. /// </summary> /// <param name="vw">The associated vowpal wabbit instance.</param> public VowpalWabbitInterfaceVisitor(VowpalWabbit vw) { this.vw = vw; this.builder = null; this.namespaceBuilder = null; this.featureGroup = '\0'; this.namespaceHash = 0; }
/// <summary> /// Initializes a new instance of the <see cref="VowpalWabbitMarshalContext"/> class. /// </summary> /// <param name="vw">The VW instance the example will be imported to.</param> /// <param name="exampleBuilder">A shared example builder.</param> /// <param name="dictionary">Dictionary used for dictify operation.</param> /// <param name="fastDictionary">Dictionary used for dictify operation.</param> public VowpalWabbitMarshalContext(VowpalWabbit vw, VowpalWabbitExampleBuilder exampleBuilder, Dictionary<string, string> dictionary = null, Dictionary<object, string> fastDictionary = null) { this.VW = vw; this.ExampleBuilder = exampleBuilder; if (vw.Settings.EnableStringExampleGeneration) { this.StringExample = new StringBuilder(); this.Dictionary = dictionary; this.FastDictionary = fastDictionary; } }
/// <summary> /// Initializes a new instance of the <see cref="VowpalWabbitMarshalContext"/> class. /// </summary> /// <param name="vw">The VW instance the example will be imported to.</param> /// <param name="exampleBuilder">A shared example builder.</param> /// <param name="dictionary">Dictionary used for dictify operation.</param> /// <param name="fastDictionary">Dictionary used for dictify operation.</param> public VowpalWabbitMarshalContext(VowpalWabbit vw, VowpalWabbitExampleBuilder exampleBuilder, Dictionary <string, string> dictionary = null, Dictionary <object, string> fastDictionary = null) { this.VW = vw; this.ExampleBuilder = exampleBuilder; if (vw.Settings.EnableStringExampleGeneration) { this.StringExample = new StringBuilder(); this.Dictionary = dictionary; this.FastDictionary = fastDictionary; } }
public VowpalWabbitExample Visit(string label, IVisitableNamespace[] namespaces) { using (this.builder = new VowpalWabbitExampleBuilder(this.vw)) { this.builder.Label = label; foreach (var n in namespaces) { n.Visit(); } return(this.builder.CreateExample()); } }
private void Initialize(VowpalWabbitSerializerSettings settings) { var visitor = new VowpalWabbitInterfaceVisitor(this); this.actionDependentFeatureSerializer = VowpalWabbitSerializerFactory.CreateSerializer <TActionDependentFeature>(visitor, settings); if (this.actionDependentFeatureSerializer == null) { throw new ArgumentException(typeof(TActionDependentFeature) + " must have a least a single [Feature] defined."); } using (var exBuilder = new VowpalWabbitExampleBuilder(this)) { this.emptyExample = exBuilder.CreateExample(); } }
/// <summary> /// Transfers namespace data to native space. /// </summary> /// <param name="label">The label.</param> /// <param name="namespaces">The namespaces.</param> /// <returns>The populated vowpal wabbit example.</returns> public VowpalWabbitExample Visit(ILabel label, IVisitableNamespace[] namespaces) { Contract.Requires(namespaces != null); using (this.builder = new VowpalWabbitExampleBuilder(this.vw)) { if (label != null) { this.builder.ParseLabel(label.ToVowpalWabbitFormat()); } foreach (var n in namespaces) { n.Visit(); } return(this.builder.CreateExample()); } }