org.android.activityminer.model.configuration
Class Constants

java.lang.Object
  org.android.activityminer.model.configuration.Constants

public class Constants
extends Object

Class to wrap the constants used by the model

Field Summary

static String	CLASS_FIELD_NAME Constant for the class field name in stored models/CSV exports
static String	COLON String constants for a colon
static String	COLUMN_DELIMITER The delimiter between columns for formatted String representations of the per class statistics.
static String	CSV_QUOTE_CHAR CSV quote character
static float	DEFAULT_ACC_MIN_CUTOFF_FREQ_FOR_FILTER The min cutoff frequency in Hz for the accelerometers adaptive low pass filter.
static float	DEFAULT_ACC_SLOPE_FOR_FILTER The min cutoff slope for the accelerometers adaptive low pass filter.
static float	DEFAULT_ACC_SMOOTH_FACTOR The smooth factor for the acceleration source low pass filter
static int	DEFAULT_ACCURACY_THRESHOLD_FOR_EVALUATION Default value for the evaluation result selection.
static ClassifierTypes	DEFAULT_CLASSIFIER The default classifier.
static long	DEFAULT_COUNT_DOWN_TIME The default value for the count-down time (the delay) in seconds before recording is started
static int	DEFAULT_CROSS_VALIDATION_K The default count of the partition subsets for cross validation (Parameter k).
static int	DEFAULT_KNN_NEIGHBOR_COUNT The default value for the count of nearest neighbors for the knn-classifier.
static boolean	DEFAULT_KNN_NORMALIZE Default value for attribute normalization by the KNN classifier
static long	DEFAULT_RECORDING_TIME The maximum recording length in milliseconds for raw sensor data storage.
static boolean	DEFAULT_USE_LOCATION_DATA The default constant for the use location data flag.
static String	DOUBLE_CSV_QUOTE_CHAR The doubled quote character
static String	EMPTY_STRING Empty string constant
static String	EQUALS The equals symbol
static String	FORMAT_FLOAT_PRECISION_0 String constants for a percentage symbol.
static String	FORMAT_FLOAT_PRECISION_3 String constants for a percentage symbol.
static long	INFINITE_WINDOW_SIZE Constant value for an infinite window size.
static int	LOCATION_ACCURACY_DELTA Accuracy delta to indicate significantly more accurate location fixes
static float	LOCATION_MIN_DISTANCE The minimal distance for location events in meters.
static int	LOCATION_TIME_DELTA This is the time interval to charge a location fix as significantly newer than the old one.
static long	LOW_SAMPLE_RATE The low sample rate for the sample taking task.
static byte[]	MAGIC_SQLITE_HEADER The magic header of sql database files
static int	MAX_CROSS_VALIDATION_K The maximum count of the partition subsets for cross validation (Parameter k).
static int	MAX_KNN_NEIGHBOR_COUNT The maximum count of neighbors for the knn-classifier (Parameter k).
static int	MAX_SELECTED_FEATURES_FOR_POWER_SET_EVAL The maximum feature count for a power set evaluation.
static long	MAX_TOLERATED_ACC_SAMPLING_GAP The maximum tolerated gap between accelerometer sensor observation.
static long	MAX_WAIT_TIME_FOR_NEW_LOCATION_FIX The maximum time in milliseconds to wait for new location fixes if current is deprecated.
static long	MAXIMUM_SAMPLE_RATE The maximum sample rate for the sample taking task in milliseconds.
static long	MAXIMUM_TIME_WINDOW The maximum time cut-out window for feature extraction in milliseconds.
static int	MAXIMUM_TIME_WINDOW_OVERLAP The maximum overlap of time windows.
static int	MIN_CROSS_VALIDATION_K The minimum count of the partition subsets for cross validation (Parameter k).
static int	MIN_KNN_NEIGHBOR_COUNT The minimum count of neighbors for the knn-classifier (Parameter k).
static long	MINIMUM_RECORDING_TIME The minimum recording length in milliseconds for raw sensor data storage.
static int	MINIMUM_SAMPLE_COUNT_PER_LABEL The minimum count of existing samples (extracted feature vectors) for a label, necessary for evaluation.
static long	MINIMUM_SAMPLE_RATE The minimum sample rate for the sample taking task.
static long	MINIMUM_TIME_WINDOW The minimum time cut-out window for feature extraction in milliseconds.
static long	MODERATE_SAMPLE_RATE The moderate sample rate for the sample taking task.
static String	NEW_LINE The line separator
static int	NO_OVERLAP Constant value for no overlap in frames.
static long	NORMAL_SAMPLE_RATE The normal sample rate for the sample taking task.
static String	PERCENTAGE String constants for a percentage symbol.
static String	POINT String constants for a point
static String	RECORDING_ID_FIELD_NAME Constant for the recording ID field name in stored models/CSV exports
static int	REQUEST_CODE_FOR_DB_FILE The request code for database files for the file browser
static int	REQUEST_CODE_FOR_EXPORT_DIR The request code for export directory for the file browser
static int	REQUEST_CODE_FOR_MODEL_NAME The request code for model names
static String	SEQUENCE_ID_FIELD_NAME Constant for the sequence ID field name in stored models/CSV exports
static String	SLASH The forward slash symbol
static String	SPACE Space character
static String	STAR String constants for the star symbol.
static String	TIMESTAMP_FIELD_NAME Constant for the time stamp field name in stored models/CSV exports

Constructor Summary

Constants()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

MAXIMUM_SAMPLE_RATE

public static final long MAXIMUM_SAMPLE_RATE

The maximum sample rate for the sample taking task in milliseconds.

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Constant Field Values

NORMAL_SAMPLE_RATE

public static final long NORMAL_SAMPLE_RATE

The normal sample rate for the sample taking task.

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MODERATE_SAMPLE_RATE

public static final long MODERATE_SAMPLE_RATE

The moderate sample rate for the sample taking task.

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LOW_SAMPLE_RATE

public static final long LOW_SAMPLE_RATE

The low sample rate for the sample taking task.

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MINIMUM_SAMPLE_RATE

public static final long MINIMUM_SAMPLE_RATE

The minimum sample rate for the sample taking task.

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MINIMUM_TIME_WINDOW

public static final long MINIMUM_TIME_WINDOW

The minimum time cut-out window for feature extraction in milliseconds.
This does determine the minimum duration to distinguish between activities.

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MAXIMUM_TIME_WINDOW_OVERLAP

public static final int MAXIMUM_TIME_WINDOW_OVERLAP

The maximum overlap of time windows.

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MAXIMUM_TIME_WINDOW

public static final long MAXIMUM_TIME_WINDOW

The maximum time cut-out window for feature extraction in milliseconds.
This does not limit the ability to record repetitive activities for a longer duration.

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DEFAULT_RECORDING_TIME

public static final long DEFAULT_RECORDING_TIME

The maximum recording length in milliseconds for raw sensor data storage.

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MINIMUM_RECORDING_TIME

public static final long MINIMUM_RECORDING_TIME

The minimum recording length in milliseconds for raw sensor data storage.

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MAX_SELECTED_FEATURES_FOR_POWER_SET_EVAL

public static final int MAX_SELECTED_FEATURES_FOR_POWER_SET_EVAL

The maximum feature count for a power set evaluation.

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Constant Field Values

DEFAULT_CROSS_VALIDATION_K

public static final int DEFAULT_CROSS_VALIDATION_K

The default count of the partition subsets for cross validation (Parameter k).

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Constant Field Values

MIN_CROSS_VALIDATION_K

public static final int MIN_CROSS_VALIDATION_K

The minimum count of the partition subsets for cross validation (Parameter k).

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Constant Field Values

MAX_CROSS_VALIDATION_K

public static final int MAX_CROSS_VALIDATION_K

The maximum count of the partition subsets for cross validation (Parameter k).

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DEFAULT_ACCURACY_THRESHOLD_FOR_EVALUATION

public static final int DEFAULT_ACCURACY_THRESHOLD_FOR_EVALUATION

Default value for the evaluation result selection. Evaluation results with an overall accuracy below this threshold will be ignored

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Constant Field Values

MINIMUM_SAMPLE_COUNT_PER_LABEL

public static final int MINIMUM_SAMPLE_COUNT_PER_LABEL

The minimum count of existing samples (extracted feature vectors) for a label, necessary for evaluation.

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Constant Field Values

INFINITE_WINDOW_SIZE

public static final long INFINITE_WINDOW_SIZE

Constant value for an infinite window size.

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NO_OVERLAP

public static final int NO_OVERLAP

Constant value for no overlap in frames.

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DEFAULT_ACC_SMOOTH_FACTOR

public static final float DEFAULT_ACC_SMOOTH_FACTOR

The smooth factor for the acceleration source low pass filter

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DEFAULT_ACC_MIN_CUTOFF_FREQ_FOR_FILTER

public static final float DEFAULT_ACC_MIN_CUTOFF_FREQ_FOR_FILTER

The min cutoff frequency in Hz for the accelerometers adaptive low pass filter. As lower the minimum cutoff frequency as more the slow speed jitter will be reduced.

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Constant Field Values

DEFAULT_ACC_SLOPE_FOR_FILTER

public static final float DEFAULT_ACC_SLOPE_FOR_FILTER

The min cutoff slope for the accelerometers adaptive low pass filter. As higher the slope value as more the high speed lag will be reduced.

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Constant Field Values

LOCATION_MIN_DISTANCE

public static final float LOCATION_MIN_DISTANCE

The minimal distance for location events in meters.

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Constant Field Values

LOCATION_TIME_DELTA

public static final int LOCATION_TIME_DELTA

This is the time interval to charge a location fix as significantly newer than the old one.

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Constant Field Values

DEFAULT_CLASSIFIER

public static final ClassifierTypes DEFAULT_CLASSIFIER

The default classifier.

DEFAULT_KNN_NEIGHBOR_COUNT

public static final int DEFAULT_KNN_NEIGHBOR_COUNT

The default value for the count of nearest neighbors for the knn-classifier.

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Constant Field Values

MIN_KNN_NEIGHBOR_COUNT

public static final int MIN_KNN_NEIGHBOR_COUNT

The minimum count of neighbors for the knn-classifier (Parameter k).

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MAX_KNN_NEIGHBOR_COUNT

public static final int MAX_KNN_NEIGHBOR_COUNT

The maximum count of neighbors for the knn-classifier (Parameter k).

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DEFAULT_USE_LOCATION_DATA

public static final boolean DEFAULT_USE_LOCATION_DATA

The default constant for the use location data flag.

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LOCATION_ACCURACY_DELTA

public static final int LOCATION_ACCURACY_DELTA

Accuracy delta to indicate significantly more accurate location fixes

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MAX_WAIT_TIME_FOR_NEW_LOCATION_FIX

public static final long MAX_WAIT_TIME_FOR_NEW_LOCATION_FIX

The maximum time in milliseconds to wait for new location fixes if current is deprecated.

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DEFAULT_COUNT_DOWN_TIME

public static final long DEFAULT_COUNT_DOWN_TIME

The default value for the count-down time (the delay) in seconds before recording is started

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Constant Field Values

NEW_LINE

public static final String NEW_LINE

The line separator

REQUEST_CODE_FOR_DB_FILE

public static final int REQUEST_CODE_FOR_DB_FILE

The request code for database files for the file browser

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REQUEST_CODE_FOR_MODEL_NAME

public static final int REQUEST_CODE_FOR_MODEL_NAME

The request code for model names

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REQUEST_CODE_FOR_EXPORT_DIR

public static final int REQUEST_CODE_FOR_EXPORT_DIR

The request code for export directory for the file browser

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CSV_QUOTE_CHAR

public static final String CSV_QUOTE_CHAR

CSV quote character

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DOUBLE_CSV_QUOTE_CHAR

public static final String DOUBLE_CSV_QUOTE_CHAR

The doubled quote character

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MAGIC_SQLITE_HEADER

public static final byte[] MAGIC_SQLITE_HEADER

The magic header of sql database files

SPACE

public static final String SPACE

Space character

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POINT

public static final String POINT

String constants for a point

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COLON

public static final String COLON

String constants for a colon

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SLASH

public static final String SLASH

The forward slash symbol

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EQUALS

public static final String EQUALS

The equals symbol

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PERCENTAGE

public static final String PERCENTAGE

String constants for a percentage symbol.

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STAR

public static final String STAR

String constants for the star symbol.

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FORMAT_FLOAT_PRECISION_3

public static final String FORMAT_FLOAT_PRECISION_3

String constants for a percentage symbol.

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FORMAT_FLOAT_PRECISION_0

public static final String FORMAT_FLOAT_PRECISION_0

String constants for a percentage symbol.

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EMPTY_STRING

public static final String EMPTY_STRING

Empty string constant

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CLASS_FIELD_NAME

public static final String CLASS_FIELD_NAME

Constant for the class field name in stored models/CSV exports

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TIMESTAMP_FIELD_NAME

public static final String TIMESTAMP_FIELD_NAME

Constant for the time stamp field name in stored models/CSV exports

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RECORDING_ID_FIELD_NAME

public static final String RECORDING_ID_FIELD_NAME

Constant for the recording ID field name in stored models/CSV exports

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SEQUENCE_ID_FIELD_NAME

public static final String SEQUENCE_ID_FIELD_NAME

Constant for the sequence ID field name in stored models/CSV exports

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DEFAULT_KNN_NORMALIZE

public static final boolean DEFAULT_KNN_NORMALIZE

Default value for attribute normalization by the KNN classifier

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COLUMN_DELIMITER

public static final String COLUMN_DELIMITER

The delimiter between columns for formatted String representations of the per class statistics.

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MAX_TOLERATED_ACC_SAMPLING_GAP

public static final long MAX_TOLERATED_ACC_SAMPLING_GAP

The maximum tolerated gap between accelerometer sensor observation.

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Constant Field Values

Constructor Detail

Constants

public Constants()