org.android.activityminer.logic.features
Class FeatureExtractorForDBRecordings

java.lang.Object
  java.lang.Thread
      de.unikassel.android.sdcframework.util.AbstractWorkerThread
          de.unikassel.android.sdcframework.util.AbstractEventDispatcherImpl<SensorObservationCutout<T,Double>,FeatureVector>
              org.android.activityminer.logic.features.AbstractFeatureExtractor<T>
                  org.android.activityminer.logic.features.AbstractCutoutFeatureExtractor<T>
                      org.android.activityminer.logic.features.AbstractFeatureExtractorForDBRecordings<SensorObservationDimensions>
                          org.android.activityminer.logic.features.FeatureExtractorForDBRecordings

All Implemented Interfaces:

EventDispatcher<SensorObservationCutout<SensorObservationDimensions,Double>,FeatureVector>, EventObserver<FeatureVector>, ObservableEventSource<FeatureVector>, ObserverRegistration<FeatureVector>, WorkerThread, Runnable, ActivatableComponent

public class FeatureExtractorForDBRecordings
extends AbstractFeatureExtractorForDBRecordings<SensorObservationDimensions>

A special feature extractor extension to extract features from the labeled time series recordings.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class org.android.activityminer.logic.features.AbstractFeatureExtractorForDBRecordings

sensorObservationSource

Fields inherited from class de.unikassel.android.sdcframework.util.AbstractEventDispatcherImpl

collector

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

FeatureExtractorForDBRecordings(long windowSize, int overlap, long sampleRate, Context context)
Constructor

Method Summary

protected SensorObservation<SensorObservationDimensions,Double>	createObservationFromCutOut(SensorObservationCutout<SensorObservationDimensions,Double> cutOut, int i, Long ts) Does create a sensor observation from a cut-out window at a given index with a given time stamp
protected AbstractFeatureFactory<SensorObservationDimensions>	getFactory(Context context) Getter for the feature factory

Methods inherited from class org.android.activityminer.logic.features.AbstractFeatureExtractorForDBRecordings

continuousExtractFeatures, extractFeatures, hasNotDone, onActivationStateChange, onEvent, startContinuousFeatureExtraction, stopContinuousFeatureExtraction, waitUnitlDone

Methods inherited from class org.android.activityminer.logic.features.AbstractCutoutFeatureExtractor

attachSensorObservationSource, detachSensorObservationSource, getCutoutSource, getOverlapSize, getQueuedObservationCount, getWindowSize, onDestroy, setWindowSize

Methods inherited from class org.android.activityminer.logic.features.AbstractFeatureExtractor

doWork, featureTypeConfiguration, getExtractionTime, getQueuedCutoutCount, isActive, isEctracting, setActivationState

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

doCleanUp, getCollector, getEventSource, hasObservers, notify, registerEventObserver, removeAllObservers, unregisterEventObserver

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

doTerminate, hasTerminated, isLogging, isWorking, logMessage, run, setLogging, start, startWork, stopWork

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.unikassel.android.sdcframework.util.facade.ObservableEventSource

hasObservers, notify

Methods inherited from interface de.unikassel.android.sdcframework.util.facade.ObserverRegistration

registerEventObserver, removeAllObservers, unregisterEventObserver

Methods inherited from interface de.unikassel.android.sdcframework.util.facade.WorkerThread

doTerminate, hasTerminated, isLogging, isWorking, setLogging, startWork, stopWork

Constructor Detail

FeatureExtractorForDBRecordings

public FeatureExtractorForDBRecordings(long windowSize,
                                       int overlap,
                                       long sampleRate,
                                       Context context)

Constructor

Parameters:

windowSize - the size of the window to extract features from, which is moved over the raw time series stream

overlap - the overlap in percent of continuous cut-outs

sampleRate - the configured sample rate

context - the context

Method Detail

getFactory

protected final AbstractFeatureFactory<SensorObservationDimensions> getFactory(Context context)

Description copied from class: AbstractFeatureExtractor

Getter for the feature factory

Specified by:

getFactory in class AbstractFeatureExtractor<SensorObservationDimensions>

Parameters:

context - the context

Returns:

the feature factory to use

createObservationFromCutOut

protected SensorObservation<SensorObservationDimensions,Double> createObservationFromCutOut(SensorObservationCutout<SensorObservationDimensions,Double> cutOut,
                                                                                            int i,
                                                                                            Long ts)

Description copied from class: AbstractFeatureExtractorForDBRecordings

Does create a sensor observation from a cut-out window at a given index with a given time stamp

Specified by:

createObservationFromCutOut in class AbstractFeatureExtractorForDBRecordings<SensorObservationDimensions>

Parameters:

cutOut - the cut-out to create the sensor observation from

i - the index

ts - the time stamp

Returns:

the sensor observation created from recording