Examples of GenericBooleanPrefDataModel

org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel

A simple {@link DataModel} which uses a given {@link List} of users as its data source. This implementationis mostly useful for small experiments and is not recommended for contexts where performance is important.

Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel

      FastByIDMap<FastIDSet> data = new FastByIDMap<FastIDSet>();
      processFileWithoutID(iterator, data, delimiter);
      for (File updateFile : findUpdateFiles()) {
        processFileWithoutID(new FileLineIterator(updateFile, false), data, delimiter);
      }
      return new GenericBooleanPrefDataModel(data);
    }
  }

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Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel

      // Load new in-memory representation,
      log.info("Loading new JDBC delegate data...");
      DataModel newDelegateInMemory =
          delegate.hasPreferenceValues()
          ? new GenericDataModel(delegate.exportWithPrefs())
          : new GenericBooleanPrefDataModel(delegate.exportWithIDsOnly());
      // and then swap to it.
      log.info("New data loaded.");
      delegateInMemory = newDelegateInMemory;
    } catch (TasteException te) {
      log.warn("Error while reloading JDBC delegate data", te);

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Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel


        for (File updateFile : findUpdateFilesAfter(newLastModified)) {
          processFileWithoutID(new FileLineIterator(updateFile, false), data, timestamps);
        }


        return new GenericBooleanPrefDataModel(data, timestamps);


      } else {


        FastByIDMap<FastIDSet> rawData = ((GenericBooleanPrefDataModel) delegate).getRawUserData();


        for (File updateFile : findUpdateFilesAfter(Math.max(oldLastUpdateFileModifieid, newLastModified))) {
          processFileWithoutID(new FileLineIterator(updateFile, false), rawData, timestamps);
        }


        return new GenericBooleanPrefDataModel(rawData, timestamps);


      }


    }
  }

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Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel


        for (File updateFile : findUpdateFilesAfter(newLastModified)) {
          processFileWithoutID(new FileLineIterator(updateFile, false), data, timestamps);
        }


        return new GenericBooleanPrefDataModel(data, timestamps);


      } else {


        FastByIDMap<FastIDSet> rawData = ((GenericBooleanPrefDataModel) delegate).getRawUserData();


        for (File updateFile : findUpdateFilesAfter(Math.max(oldLastUpdateFileModifieid, newLastModified))) {
          processFileWithoutID(new FileLineIterator(updateFile, false), rawData, timestamps);
        }


        return new GenericBooleanPrefDataModel(rawData, timestamps);


      }


    }
  }

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Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel

      }
    };
    DataModelBuilder dataModelBuilder = new DataModelBuilder() {
      @Override
      public DataModel buildDataModel(FastByIDMap<PreferenceArray> trainingData) {
        return new GenericBooleanPrefDataModel(GenericBooleanPrefDataModel.toDataMap(trainingData));
      }
    };
    RecommenderIRStatsEvaluator evaluator = new GenericRecommenderIRStatsEvaluator();
    IRStatistics stats = evaluator.evaluate(
        builder, dataModelBuilder, model, null, 1, GenericRecommenderIRStatsEvaluator.CHOOSE_THRESHOLD, 1.0);

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Examples of org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel


        for (File updateFile : findUpdateFilesAfter(newLastModified)) {
          processFileWithoutID(new FileLineIterator(updateFile, false), data, timestamps);
        }


        return new GenericBooleanPrefDataModel(data, timestamps);


      } else {


        FastByIDMap<FastIDSet> rawData = ((GenericBooleanPrefDataModel) delegate).getRawUserData();


        for (File updateFile : findUpdateFilesAfter(Math.max(oldLastUpdateFileModifieid, newLastModified))) {
          processFileWithoutID(new FileLineIterator(updateFile, false), rawData, timestamps);
        }


        return new GenericBooleanPrefDataModel(rawData, timestamps);


      }


    }
  }

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