public SVDRecommender(DataModel dataModel, Factorizer factorizer, CandidateItemsStrategy candidateItemsStrategy, PersistenceStrategy persistenceStrategy)
: base(dataModel, candidateItemsStrategy)
{
Action refreshRunnable = null;
this.factorizer = factorizer;
this.persistenceStrategy = persistenceStrategy;
try
{
this.factorization = persistenceStrategy.load();
}
catch (IOException exception)
{
throw new TasteException("Error loading factorization", exception);
}
if (this.factorization == null)
{
this.train();
}
if (refreshRunnable == null)
{
refreshRunnable = () => this.train();
}
this.refreshHelper = new RefreshHelper(refreshRunnable);
this.refreshHelper.addDependency(this.getDataModel());
this.refreshHelper.addDependency(factorizer);
this.refreshHelper.addDependency(candidateItemsStrategy);
}
