org.android.activityminer.logic.classification
Class ModelCreationHelper

java.lang.Object
  de.unikassel.android.sdcframework.util.ObservableEventSourceImpl<ObservableProgressData>
      org.android.activityminer.logic.classification.ModelCreationHelper

All Implemented Interfaces:

ObservableEventSource<ObservableProgressData>, ObserverRegistration<ObservableProgressData>

public class ModelCreationHelper
extends ObservableEventSourceImpl<ObservableProgressData>

A class to delegate model creation to.

Field Summary

private Configuration	config The current configuration.
private Context	context The application context.
private DBManager	dbManager A reference to the database manager.
private String	lastError The last error
private android.support.v4.util.LongSparseArray<List<Long>>	mapSelectedClassId2SampleIds A map to store sample (feature vector) identifiers for the selected lass identifiers
private String	modelName The model name
private PMML	pmmlModel The created PMML model.
private int	progress The current progress.
private ObservableProgressData	progressData The observable progress data
private int	sampleCount Progress increment for standard operations like partitioning and data loading.
private boolean	succeeded The success state flag
private Set<TrainingActivity>	trainingActivites The training activities for evaluation.

Constructor Summary

ModelCreationHelper(DBManager dbManager, Configuration config, String modelName, Context context)
Constructor

Method Summary

boolean	createModel() Does run the model creation
String	getLastError() Getter for the last error
int	getMaxProgress() Getter for the maximum progress
Object	getModelName() Getter for the model name
String	getStartProgressMessage() Getter for the start progress message
boolean	hasSucceeded() Getter for the success flag
android.support.v4.util.LongSparseArray<String>	loadSamples(Set<FeatureTypes> visibleAttributes) Does load available samples as feature vectors from DB and creates the partitioning for k-fold cross validation.
boolean	saveModel() Method to store model.
void	updateProgress(String msg) Does publish the current progress with the given message.

Methods inherited from class de.unikassel.android.sdcframework.util.ObservableEventSourceImpl

getObservers, hasObservers, notify, onObserverRegistration, onObserverUnregistration, registerEventObserver, removeAllObservers, unregisterEventObserver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

dbManager

private final DBManager dbManager

A reference to the database manager.

config

private Configuration config

The current configuration.

sampleCount

private int sampleCount

Progress increment for standard operations like partitioning and data loading.

trainingActivites

private Set<TrainingActivity> trainingActivites

The training activities for evaluation.

progressData

private final ObservableProgressData progressData

The observable progress data

progress

private int progress

The current progress.

succeeded

private boolean succeeded

The success state flag

lastError

private String lastError

The last error

modelName

private final String modelName

The model name

mapSelectedClassId2SampleIds

private final android.support.v4.util.LongSparseArray<List<Long>> mapSelectedClassId2SampleIds

A map to store sample (feature vector) identifiers for the selected lass identifiers

context

private final Context context

The application context.

pmmlModel

private PMML pmmlModel

The created PMML model.

Constructor Detail

ModelCreationHelper

public ModelCreationHelper(DBManager dbManager,
                           Configuration config,
                           String modelName,
                           Context context)

Constructor

Parameters:

dbManager - a reference to the database manager

config - the current configuration

modelName - the model name

context - the application context

Method Detail

hasSucceeded

public final boolean hasSucceeded()

Getter for the success flag

Returns:

the success flag

getLastError

public final String getLastError()

Getter for the last error

Returns:

the last error

getMaxProgress

public final int getMaxProgress()

Getter for the maximum progress

Returns:

the maximum progress steps

createModel

public final boolean createModel()

Does run the model creation

Returns:

true if successful, false otherwise

saveModel

public final boolean saveModel()

Method to store model.

Returns:

true if successful, false otherwise

loadSamples

public final android.support.v4.util.LongSparseArray<String> loadSamples(Set<FeatureTypes> visibleAttributes)
                                                                  throws Exception

Does load available samples as feature vectors from DB and creates the partitioning for k-fold cross validation.

Parameters:

visibleAttributes - the visible attributes

Returns:

the class identifier to name mapping

Throws:

Exception

updateProgress

public final void updateProgress(String msg)

Does publish the current progress with the given message.

Parameters:

msg - the progress message

getStartProgressMessage

public String getStartProgressMessage()

Getter for the start progress message

Returns:

the start message for progress observation

getModelName

public Object getModelName()

Getter for the model name

Returns:

the model name