public void TestWiki()
{
using (var vw = new VW.VowpalWabbit("-f rcv1.model"))
{
// 1 |f 13:3.9656971e-02 24:3.4781646e-02 69:4.6296168e-02
using (var exampleBuilder = new VW.VowpalWabbitExampleBuilder(vw))
{
// important to dispose the namespace builder at the end, as data is only added to the example
// if there is any feature added to the namespace
using (var ns = exampleBuilder.AddNamespace('f'))
{
var namespaceHash = vw.HashSpace("f");
var featureHash = vw.HashFeature("13", namespaceHash);
ns.AddFeature(featureHash, 8.5609287e-02f);
featureHash = vw.HashFeature("24", namespaceHash);
ns.AddFeature(featureHash, 3.4781646e-02f);
featureHash = vw.HashFeature("69", namespaceHash);
ns.AddFeature(featureHash, 4.6296168e-02f);
}
exampleBuilder.ApplyLabel(new SimpleLabel() { Label = 1 });
// hand over of memory management
using (var example = exampleBuilder.CreateExample())
{
VowpalWabbitExampleValidator.Validate("1 |f 13:8.5609287e-02 24:3.4781646e-02 69:4.6296168e-02", example, VowpalWabbitLabelComparator.Simple);
vw.Learn(example);
}
}
}
}
public void TestWiki()
{
using (var vw = new VW.VowpalWabbit("-f rcv1.model"))
{
// 1 |f 13:3.9656971e-02 24:3.4781646e-02 69:4.6296168e-02
using (var exampleBuilder = new VW.VowpalWabbitExampleBuilder(vw))
{
// important to dispose the namespace builder at the end, as data is only added to the example
// if there is any feature added to the namespace
using (var ns = exampleBuilder.AddNamespace('f'))
{
var namespaceHash = vw.HashSpace("f");
var featureHash = vw.HashFeature("13", namespaceHash);
ns.AddFeature(featureHash, 8.5609287e-02f);
featureHash = vw.HashFeature("24", namespaceHash);
ns.AddFeature(featureHash, 3.4781646e-02f);
featureHash = vw.HashFeature("69", namespaceHash);
ns.AddFeature(featureHash, 4.6296168e-02f);
}
exampleBuilder.ApplyLabel(new SimpleLabel()
{
Label = 1
});
// hand over of memory management
using (var example = exampleBuilder.CreateExample())
{
VowpalWabbitExampleValidator.Validate("1 |f 13:8.5609287e-02 24:3.4781646e-02 69:4.6296168e-02", example, VowpalWabbitLabelComparator.Simple);
vw.Learn(example);
}
}
}
}