private RoutePredictionValidation ValidateRoutePrediction(TripSummary trip)
{
RoutePredictionValidation validation = new RoutePredictionValidation()
{
ActualEndLat = trip.EndLatitude,
ActualEndLon = trip.EndLongitude,
StartLat = trip.StartLatitude,
StartLon = trip.StartLongitude,
};
var predictionResult = PredictEndLocation(trip.StartLatitude, trip.StartLongitude, trip.StartTime);
validation.ClusterLevel = predictionResult.ClusterLevel;
if (predictionResult.Predictions.Count > 0)
{
validation.PredictedEndLat = predictionResult.Predictions[0].Lat;
validation.PredictedEndLon = predictionResult.Predictions[0].Lon;
validation.PredictionAccuracyInMeter = CalculatePredictionAccuracyInMeter(
validation.ActualEndLat, validation.ActualEndLon,
validation.PredictedEndLat, validation.PredictedEndLon);
foreach (var prediction in predictionResult.Predictions)
{
var scoredItem = new ScoredRoutePredictionItem()
{
Prediction = prediction,
PredictionAccuracyInMeter =
CalculatePredictionAccuracyInMeter(validation.ActualEndLat, validation.ActualEndLon, prediction.Lat, prediction.Lon)
};
validation.ScoredPredictions.Add(scoredItem);
}
}
return(validation);
}
public void AddTripSummary(TripSummary tripSummary)
{
if (startLocationRoot == null)
{
startLocationRoot = new LocationClustering<LocationInstance<TripSummary>>(clusterSize);
}
if (endLocationRoot == null)
{
endLocationRoot = new LocationClustering<TripSummary>(clusterSize);
}
var endLocation = endLocationRoot.AddLocation(tripSummary.EndLatitude, tripSummary.EndLongitude, tripSummary);
startLocationRoot.AddLocation(tripSummary.StartLatitude, tripSummary.StartLongitude, endLocation);
}
public void AddTripSummary(TripSummary tripSummary)
{
if (startLocationRoot == null)
{
startLocationRoot = new LocationClustering <LocationInstance <TripSummary> >(clusterSize);
}
if (endLocationRoot == null)
{
endLocationRoot = new LocationClustering <TripSummary>(clusterSize);
}
var endLocation = endLocationRoot.AddLocation(tripSummary.EndLatitude, tripSummary.EndLongitude, tripSummary);
startLocationRoot.AddLocation(tripSummary.StartLatitude, tripSummary.StartLongitude, endLocation);
}
private RoutePredictionValidation ValidateRoutePrediction(TripSummary trip)
{
RoutePredictionValidation validation = new RoutePredictionValidation() {
ActualEndLat = trip.EndLatitude,
ActualEndLon = trip.EndLongitude,
StartLat = trip.StartLatitude,
StartLon = trip.StartLongitude,
};
var predictionResult = PredictEndLocation(trip.StartLatitude, trip.StartLongitude, trip.StartTime);
validation.ClusterLevel = predictionResult.ClusterLevel;
if (predictionResult.Predictions.Count > 0)
{
validation.PredictedEndLat = predictionResult.Predictions[0].Lat;
validation.PredictedEndLon = predictionResult.Predictions[0].Lon;
validation.PredictionAccuracyInMeter = CalculatePredictionAccuracyInMeter(
validation.ActualEndLat, validation.ActualEndLon,
validation.PredictedEndLat, validation.PredictedEndLon);
foreach (var prediction in predictionResult.Predictions)
{
var scoredItem = new ScoredRoutePredictionItem()
{
Prediction = prediction,
PredictionAccuracyInMeter =
CalculatePredictionAccuracyInMeter(validation.ActualEndLat, validation.ActualEndLon, prediction.Lat, prediction.Lon)
};
validation.ScoredPredictions.Add(scoredItem);
}
}
return validation;
}
private List<TripSummary> LoadTrips(List<String> drivers)
{
var trips = new List<TripSummary>();
using (var rd = new StreamReader(@"..\..\testdata\TripSummaries.csv"))
{
// read the header
rd.ReadLine();
while (!rd.EndOfStream)
{
var splits = rd.ReadLine().Split(',');
if (splits.Length == 11)
{
var trip = new TripSummary();
trip.DriverId = splits[0].Trim();
if (drivers.Find(item => item.Equals(trip.DriverId)) == null)
{
drivers.Add(trip.DriverId);
}
trip.TripId = splits[1].Trim();
// ignore [2] -> Timestamp
trip.Distance = double.Parse(splits[3].Trim(), CultureInfo.InvariantCulture);
trip.Duration = double.Parse(splits[4].Trim(), CultureInfo.InvariantCulture);
trip.EndLatitude = double.Parse(splits[5].Trim(), CultureInfo.InvariantCulture);
trip.EndLongitude = double.Parse(splits[6].Trim(), CultureInfo.InvariantCulture);
// ignore [7] -> EndTime
trip.StartLatitude = double.Parse(splits[8].Trim(), CultureInfo.InvariantCulture);
trip.StartLongitude = double.Parse(splits[9].Trim(), CultureInfo.InvariantCulture);
trip.StartTime = DateTime.ParseExact(splits[10].Trim(), "d.M.yyyy HH:mm:ss", CultureInfo.InvariantCulture);
trips.Add(trip);
}
}
}
return trips;
}
