How to use

getDefaultModel

method

in

net.recommenders.rival.core.DataModelFactory

/**
 * {@inheritDoc}
 */
@Override
public DataModelIF<Long, Long> parseData(final File f) throws IOException {
  DataModelIF<Long, Long> dataset = DataModelFactory.getDefaultModel();
  BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(f), "UTF-8"));
  try {
    String line = null;
    while ((line = br.readLine()) != null) {
      parseLine(line, dataset);
    }
  } finally {
    br.close();
  }
  return dataset;
}

@SuppressWarnings("unchecked")
final DataModelIF<U, I>[] splits = new DataModelIF[2];
splits[0] = DataModelFactory.getDefaultModel(); // training
splits[1] = DataModelFactory.getDefaultModel(); // test
if (perUser) {
  for (U user : data.getUsers()) {

final DataModelIF<U, I>[] splits = new DataModelIF[2 * nFolds];
for (int i = 0; i < nFolds; i++) {
  splits[2 * i] = DataModelFactory.getDefaultModel(); // training
  splits[2 * i + 1] = DataModelFactory.getDefaultModel(); // test

for (EvaluationStrategy<Long, Long> strategy : MultipleStrategyRunner.instantiateStrategies(properties, trainingModel, testModel)) {
  DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();
  for (Long user : recModel.getUsers()) {
    for (Long item : strategy.getCandidateItemsToRank(user)) {

DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();
for (Long user : recModel.getUsers()) {
  for (Long item : strategy.getCandidateItemsToRank(user)) {

DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();

DataModelIF<Long, Long> evaluationModel = DataModelFactory.getDefaultModel();
try {
 DataModelUtils.saveDataModel(evaluationModel, Paths.get(outPath, "strategymodel_" + i + FILE_EXT).toString(), true, "\t");

DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();
for (Long user : recModel.getUsers()) {
  assert strategy != null;

DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();
for (Long user : recModel.getUsers()) {
  assert strategy != null;

DataModelIF<Long, Long> modelToEval = DataModelFactory.getDefaultModel();
for (Long user : recModel.getUsers()) {
  assert strategy != null;