public static DataSetPairs Compute(TLSimilarityMatrix sims, TLSimilarityMatrix oracle, RecallLevel recall)
{
TLSimilarityMatrix matrix = Similarities.CreateMatrix(MetricsUtil.GetLinksAtRecall(sims, oracle, recall));
matrix.Threshold = double.MinValue;
DataSetPairs pairs = new DataSetPairs();
foreach (string sourceArtifact in oracle.SourceArtifactsIds)
{
TLLinksList links = matrix.GetLinksAboveThresholdForSourceArtifact(sourceArtifact);
links.Sort();
int totalCorrect = oracle.GetLinksAboveThresholdForSourceArtifact(sourceArtifact).Count;
int numCorrect = 0;
int totalRead = 0;
double totalAvgPrecision = 0.0;
foreach (TLSingleLink link in links)
{
totalRead++;
if (oracle.IsLinkAboveThreshold(link.SourceArtifactId, link.TargetArtifactId))
{
numCorrect++;
totalAvgPrecision += numCorrect / (double)totalRead;
}
}
pairs.PrecisionData.Add(new KeyValuePair <string, double>(sourceArtifact, numCorrect / Convert.ToDouble(links.Count)));
pairs.RecallData.Add(new KeyValuePair <string, double>(sourceArtifact, Convert.ToDouble(numCorrect) / totalCorrect));
pairs.AveragePrecisionData.Add(new KeyValuePair <string, double>(sourceArtifact, totalAvgPrecision / totalCorrect));
}
pairs.MeanAveragePrecisionData.Add(new KeyValuePair <string, double>("#TOTAL", DataSetPairsCollection.CalculateAverage(pairs.AveragePrecisionData)));
return(pairs);
}
public static void ComputeMetrics(TLSimilarityMatrix sims, TLSimilarityMatrix oracle, RecallLevel level,
out TLKeyValuePairsList precision, out TLKeyValuePairsList recall, out TLKeyValuePairsList avgPrecision, out TLKeyValuePairsList meanAvgPrecision)
{
TLLinksList links = MetricsUtil.GetLinksAtRecall(sims, oracle, level);
int numCorrect = 0;
int totalRead = 0;
double totalAvgPrecision = 0.0;
foreach (TLSingleLink link in links)
{
totalRead++;
if (oracle.IsLinkAboveThreshold(link.SourceArtifactId, link.TargetArtifactId))
{
numCorrect++;
totalAvgPrecision += numCorrect / (double)totalRead;
}
}
// temporary
precision = new TLKeyValuePairsList();
precision.Add(new KeyValuePair <string, double>("#TOTAL", numCorrect / Convert.ToDouble(links.Count)));
recall = new TLKeyValuePairsList();
recall.Add(new KeyValuePair <string, double>("#TOTAL", Math.Ceiling(oracle.Count * RecallLevelUtil.RecallValue(level)) / oracle.Count));
avgPrecision = new TLKeyValuePairsList();
avgPrecision.Add(new KeyValuePair <string, double>("#TOTAL", totalAvgPrecision / oracle.Count));
meanAvgPrecision = new TLKeyValuePairsList();
meanAvgPrecision.Add(new KeyValuePair <string, double>("#TOTAL", MeanAveragePrecision.Compute(Similarities.CreateMatrix(links), oracle)));
}