/// <summary>
/// Saves the learner model as a json file to the filepath for he file.
/// </summary>
public void SaveLearnerModel()
{
LearnerModelData lm = new LearnerModelData();
lm.additionSimilar = this.GetRateofObservedNode(LearnerModel.Node.Similar, LearnerModel.Operation.ADDITION);
lm.subtractionSimilar = this.GetRateofObservedNode(LearnerModel.Node.Similar, LearnerModel.Operation.SUBTRACTION);
lm.similar = this.Infer(LearnerModel.Node.Similar);
lm.additionEquivalent = this.GetRateofObservedNode(LearnerModel.Node.Equivalent, LearnerModel.Operation.ADDITION);
lm.subtractionEquivalent = this.GetRateofObservedNode(LearnerModel.Node.Equivalent, LearnerModel.Operation.SUBTRACTION);
lm.equivalent = this.Infer(LearnerModel.Node.Equivalent);
lm.additionDissimilar = this.GetRateofObservedNode(LearnerModel.Node.Dissimilar, LearnerModel.Operation.ADDITION);
lm.subtractionEquivalent = this.GetRateofObservedNode(LearnerModel.Node.Dissimilar, LearnerModel.Operation.SUBTRACTION);
lm.dissimilar = this.Infer(LearnerModel.Node.Dissimilar);
foreach (DenominatorMastery mastery in this.denominatorMastery)
{
DenominatorMasteryData data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.SIMILAR_ADD;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.SIMILAR_SUB;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.EQUIVALENT_ADD;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.EQUIVALENT_SUB;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.DISSIMILAR_ADD;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
data = new DenominatorMasteryData();
data.denominator = mastery.GetDenominator();
data.topic = SceneTopic.DISSIMILAR_SUB;
data.mastery = mastery.Mastery(data.topic);
lm.denominatorMasteries.Add(data);
}
string newData = JsonUtility.ToJson(lm);
File.WriteAllText(learnerModelDataPath, newData);
}
/// <summary>
/// Attempts to load an existing learner model if available.
/// </summary>
public void LoadLearnerModel()
{
if (File.Exists(this.learnerModelDataPath))
{
LearnerModelData data = JsonUtility.FromJson <LearnerModelData> (File.ReadAllText(this.learnerModelDataPath));
this.bayesNet.fbSimilarAddition = data.additionSimilar;
this.bayesNet.fbSimilarSubtraction = data.subtractionSimilar;
this.bayesNet.UpdateSimilarProbability();
this.bayesNet.fbEquivalentAddition = data.additionEquivalent;
this.bayesNet.fbEquivalentSubtraction = data.subtractionEquivalent;
this.bayesNet.UpdateEquivalentProbability();
this.bayesNet.fbDissimilarAddition = data.additionDissimilar;
this.bayesNet.fbDissimilarSubtraction = data.subtractionDissimilar;
this.bayesNet.UpdateDissimilarProbability();
this.bayesNet.UpdateLearnerModel();
for (int i = 0; i < this.unlockableDenominators.Count; i++)
{
DenominatorMastery mastery = new DenominatorMastery(unlockableDenominators [i]);
List <DenominatorMasteryData> masteries = data.denominatorMasteries.FindAll(x => x.denominator == this.unlockableDenominators [i]);
foreach (DenominatorMasteryData masteryData in masteries)
{
mastery.AddMastery(masteryData.topic, masteryData.mastery);
}
denominatorMastery.Add(mastery);
}
}
else
{
for (int i = 0; i < this.unlockableDenominators.Count; i++)
{
DenominatorMastery mastery = new DenominatorMastery(unlockableDenominators [i]);
mastery.AddMastery(SceneTopic.SIMILAR_ADD);
mastery.AddMastery(SceneTopic.SIMILAR_SUB);
mastery.AddMastery(SceneTopic.EQUIVALENT_ADD);
mastery.AddMastery(SceneTopic.EQUIVALENT_SUB);
mastery.AddMastery(SceneTopic.DISSIMILAR_ADD);
mastery.AddMastery(SceneTopic.DISSIMILAR_SUB);
denominatorMastery.Add(mastery);
}
}
}