public override void ExitFeatureSparse(VowpalWabbitParser.FeatureSparseContext context)
{
var index = context.index.Text;
var x = context.x.value;
if (index == "const")
{
this.example.Constant = x;
}
else
{
this.example.Features.Add(new KeyValuePair <string, float>(index, x));
}
}
public override void ExitFeatureSparse(VowpalWabbitParser.FeatureSparseContext context)
{
var index = context.index;
var weight_index = index.Text;
var x = context.x;
if (x == null)
{
// hashed feature
this.example.T = weight_index;
}
else
{
// sparse feature
this.example.F.Add(new KeyValuePair <string, float>(weight_index, context.x.value));
}
}
