/// <summary>
/// Returns a string of plain-text with detailed state information.
/// </summary>
public static string DiagnosticInfo(this State theState)
{
StringBuilder s = new StringBuilder();
//General
s.AppendLine("#### State ####");
s.AppendFormat("ID: {0}", theState.GetHashCode()).AppendLine();
s.AppendFormat("Features: {0}", theState.Features.Count).AppendLine();
s.AppendFormat("Queries: {0}", theState.Queries.Count).AppendLine();
s.AppendFormat("Labels: {0}", theState.Labels.Count).AppendLine();
s.AppendFormat("Gini: {0:F5}", theState.GiniImpurity).AppendLine();
s.AppendLine();
//Features
s.AppendLine("#### Features ####");
s.AppendFormat("Name{0}Value", delimeter).AppendLine();
foreach (var theFeature in theState.Features)
{
s.AppendFormat("{0}", theFeature.Name.ToString());
s.Append(delimeter).AppendFormat("{0}", theFeature.Value);
s.AppendLine();
}
s.AppendLine();
//Labels
s.AppendLine("#### Labels ####");
s.AppendFormat("Feature Name{0}Feature Value{0}Reward", delimeter).AppendLine();
foreach (var labelRewardPair in theState.Labels.OrderByDescending(p => p.Value))
{
FeatureValuePair theLabel = labelRewardPair.Key;
double reward = labelRewardPair.Value;
s.AppendFormat("{0}", theLabel.Name.ToString());
s.Append(delimeter).AppendFormat("{0}", theLabel.Value);
s.Append(delimeter).AppendFormat("{0:F5}", reward);
s.AppendLine();
}
s.AppendLine();
//Queries
s.AppendLine("#### Queries ####");
s.AppendFormat("Relevant Label{0}Feature Name{0}Feature Value{0}Reward", delimeter).AppendLine();
foreach (var queryRewardPair in theState.Queries.OrderBy(p => p.Key.Label.Value).ThenBy(p => p.Key.Feature.Name).ThenBy(p => p.Key.Feature.Value).ThenByDescending(p => p.Value))
{
Query q = queryRewardPair.Key;
double reward = queryRewardPair.Value;
s.AppendFormat("{0}", q.Label.Value.ToString());
s.Append(delimeter).AppendFormat("{0}", q.Feature.Name);
s.Append(delimeter).AppendFormat("{0}", q.Feature.Value.ToString());
s.Append(delimeter).AppendFormat("{0:F5}", reward);
s.AppendLine();
}
s.AppendLine();
return(s.ToString());
}
public void Constructor()
{
var fvp = new FeatureValuePair("name1", 0.0);
Assert.Equal("name1", fvp.Name);
Assert.Equal(0.0, fvp.Value);
Assert.Equal(fvp, new FeatureValuePair("name1", 0.0));
}
public object Classify(DataVector dataVector, bool byProbability)
{
TreeNode DecisionTree = this;
//Get root node of decision tree, and set current best labels
TreeNode currentNode = DecisionTree;
List <TreeLeaf> labels = currentNode.Leaves;
//Skip root (if able)
if (currentNode.Type == TreeNodeType.Root && currentNode.SubNodes.Count == 1)
{
currentNode = currentNode.SubNodes.First();
}
//Cycle through tree
if (currentNode.Type == TreeNodeType.Feature)
{
while (true)
{
//Determine feature
string currentFeature = currentNode.Name.ToString();
//Get the feature from the datavector
FeatureValuePair theFeature = dataVector[currentFeature];
//If feature not available, end loop. Use the current best labels.
if (theFeature == null)
{
break;
}
//Get the value from the datavector
object value = theFeature.Value;
//Pick next node
TreeNode valueNode = currentNode.SubNodes.Find(p => value.Equals(p.Name));
//Check if value node is not finished (incomplete tree)
if (valueNode == null)
{
break;
}
//Save current labels (they are more accurate)
if (valueNode.Leaves.Count != 0)
{
labels = valueNode.Leaves;
}
//If there is a subnode, there is another feature. Switch to it.
if (valueNode.SubNodes.Count == 1)
{
currentNode = valueNode.SubNodes.First();
}
//Check end condition. The end of the branch has been reached.
if (valueNode.SubNodes.Count == 0)
{
break;
}
}
}
//Get best label from labels list
if (byProbability)
{
return(PickLabelByProbability(labels));
}
else
{
return(PickLabelByHighestReward(labels));
}
}
/// <summary>
/// Returns an HTML formatted string with detailed state information.
/// </summary>
public static string DiagnosticHtml(this State theState)
{
StringBuilder s = new StringBuilder();
int stateID = theState.GetHashCode();
//Front Matter
s.AppendLine(@"
<style>
.card-body {
margin:0;
padding:0;
}
</style>
");
s.AppendLine("<div class='accordion'>");
#region Features
s.AppendLine("<div class='card'>");
//Card Header
s.AppendFormat(@"
<div class='card-header'>
<h5 class='mb-0'>
<button class='btn btn-link' type='button' data-toggle='collapse' data-target='#ID{0}-Features'>
Features ({1:F0})
</button>
</h5>
</div>
", stateID, theState.Features.Count);
//Card Body
s.AppendFormat("<div id='ID{0}-Features' class='collapse'>", stateID).AppendLine();
s.AppendLine("<div class='card-body'>");
s.AppendLine("<table class='table'>");
s.AppendLine("<tr>");
s.AppendLine("<th>Name</th><th>Value</th>");
s.AppendLine("</tr>");
foreach (var theFeature in theState.Features)
{
s.AppendLine("<tr>");
s.AppendFormat("<td>{0}</td>", theFeature.Name.ToString());
s.AppendFormat("<td>{0}</td>", theFeature.Value);
s.AppendLine("</tr>");
}
s.AppendLine("</table>");
s.AppendLine("</div>");
s.AppendLine("</div>");
s.AppendLine("</div>");
#endregion
#region Labels
s.AppendLine("<div class='card'>");
//Card Header
s.AppendFormat(@"
<div class='card-header'>
<h5 class='mb-0'>
<button class='btn btn-link' type='button' data-toggle='collapse' data-target='#ID{0}-Labels'>
Labels ({1:F0})
</button>
</h5>
</div>
", stateID, theState.Labels.Count);
//Card Body
s.AppendFormat("<div id='ID{0}-Labels' class='collapse'>", stateID).AppendLine();
s.AppendLine("<div class='card-body'>");
s.AppendLine("<table class='table'>");
s.AppendLine("<tr>");
s.AppendLine("<th>Feature Name</th><th>Feature Value</th><th>Reward</th>");
s.AppendLine("</tr>");
foreach (var labelRewardPair in theState.Labels.OrderByDescending(p => p.Value))
{
FeatureValuePair theLabel = labelRewardPair.Key;
double reward = labelRewardPair.Value;
s.AppendLine("<tr>");
s.AppendFormat("<td>{0}</td>", theLabel.Name);
s.AppendFormat("<td>{0}</td>", theLabel.Value);
s.AppendFormat("<td>{0:F3}</td>", reward);
s.AppendLine("</tr>");
}
s.AppendLine("</table>");
s.AppendLine("</div>");
s.AppendLine("</div>");
s.AppendLine("</div>");
#endregion
#region Queries
s.AppendLine("<div class='card'>");
//Card Header
s.AppendFormat(@"
<div class='card-header'>
<h5 class='mb-0'>
<button class='btn btn-link' type='button' data-toggle='collapse' data-target='#ID{0}-Queries'>
Queries ({1:F0})
</button>
</h5>
</div>
", stateID, theState.Queries.Count);
//Card Body
s.AppendFormat("<div id='ID{0}-Queries' class='collapse'>", stateID).AppendLine();
s.AppendLine("<div class='card-body'>");
s.AppendLine("<table class='table'>");
s.AppendLine("<tr>");
s.AppendLine("<th>Relevant Label</th><th>Feature Name</th><th>Feature Value</th><th>Reward</th>");
s.AppendLine("</tr>");
foreach (var queryRewardPair in theState.Queries.OrderBy(p => p.Key.Label.Value).ThenBy(p => p.Key.Feature.Name).ThenBy(p => p.Key.Feature.Value).ThenByDescending(p => p.Value))
{
Query theQuery = queryRewardPair.Key;
double reward = queryRewardPair.Value;
s.AppendLine("<tr>");
s.AppendFormat("<td>{0}</td>", theQuery.Label.Value);
s.AppendFormat("<td>{0}</td>", theQuery.Feature.Name);
s.AppendFormat("<td>{0}</td>", theQuery.Feature.Value);
s.AppendFormat("<td>{0:F3}</td>", reward);
s.AppendLine("</tr>");
}
s.AppendLine("</table>");
s.AppendLine("</div>");
s.AppendLine("</div>");
s.AppendLine("</div>");
#endregion
//Back Matter
s.AppendLine("</div>");
return(s.ToString());
}
