org.nd4j.autodiff.validation

Class GradCheckUtil

java.lang.Object

org.nd4j.autodiff.validation.GradCheckUtil

public class GradCheckUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GradCheckUtil.ActGradConfig
static class	GradCheckUtil.Subset

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEFAULT_DEBUG_MODE
static double	DEFAULT_EPS
static boolean	DEFAULT_EXIT_FIRST_FAILURE
static double	DEFAULT_MAX_REL_ERROR
static double	DEFAULT_MIN_ABS_ERROR
static boolean	DEFAULT_PRINT

Constructor Summary

Constructors

Constructor and Description
GradCheckUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	checkActivationGradients(GradCheckUtil.ActGradConfig config) Gradient check the ACTIVATIONS (i.e., ARRAY type SDVariables) as opposed to the parameters of a network (as are tested in checkGradients(SameDiff, Map, double, double, double, boolean, boolean, boolean, boolean, Set, Map, int, Subset)
static boolean	checkGradients(SameDiff sd, Map<String,INDArray> placeholderValues, boolean print, boolean exitOnFirstFailure)
static boolean	checkGradients(SameDiff sd, Map<String,INDArray> placeholderValues, double eps, double maxRelError, double minAbsError, boolean print, boolean exitOnFirstFailure)
static boolean	checkGradients(SameDiff sd, Map<String,INDArray> placeholderValues, double eps, double maxRelError, double minAbsError, boolean print, boolean exitOnFirstFailure, boolean skipValidation, boolean debugMode, Set<String> skipVariables, Map<String,INDArray> gradCheckMask)
static boolean	checkGradients(SameDiff sd, Map<String,INDArray> placeholderValues, double eps, double maxRelError, double minAbsError, boolean print, boolean exitOnFirstFailure, boolean skipValidation, boolean debugMode, Set<String> skipVariables, Map<String,INDArray> gradCheckMask, int maxPerParam, GradCheckUtil.Subset subset)
static boolean	checkGradients(SameDiff sd, Map<String,INDArray> placeholderValues, String... skipVariables)
static boolean	checkGradients(TestCase t)
static void	validateInternalState(SameDiff sd, boolean generateAndCheckGradFn)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PRINT

public static final boolean DEFAULT_PRINT

See Also:

Constant Field Values

DEFAULT_EXIT_FIRST_FAILURE

public static final boolean DEFAULT_EXIT_FIRST_FAILURE

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Constant Field Values

DEFAULT_DEBUG_MODE

public static final boolean DEFAULT_DEBUG_MODE

See Also:

Constant Field Values

DEFAULT_EPS

public static final double DEFAULT_EPS

See Also:

Constant Field Values

DEFAULT_MAX_REL_ERROR

public static final double DEFAULT_MAX_REL_ERROR

See Also:

Constant Field Values

DEFAULT_MIN_ABS_ERROR

public static final double DEFAULT_MIN_ABS_ERROR

See Also:

Constant Field Values

Constructor Detail

GradCheckUtil

public GradCheckUtil()

Method Detail

checkGradients

public static boolean checkGradients(TestCase t)

checkGradients

public static boolean checkGradients(SameDiff sd,
                                     Map<String,INDArray> placeholderValues,
                                     String... skipVariables)

checkGradients

public static boolean checkGradients(SameDiff sd,
                                     Map<String,INDArray> placeholderValues,
                                     boolean print,
                                     boolean exitOnFirstFailure)

checkGradients

public static boolean checkGradients(SameDiff sd,
                                     Map<String,INDArray> placeholderValues,
                                     double eps,
                                     double maxRelError,
                                     double minAbsError,
                                     boolean print,
                                     boolean exitOnFirstFailure)

checkGradients

public static boolean checkGradients(SameDiff sd,
                                     Map<String,INDArray> placeholderValues,
                                     double eps,
                                     double maxRelError,
                                     double minAbsError,
                                     boolean print,
                                     boolean exitOnFirstFailure,
                                     boolean skipValidation,
                                     boolean debugMode,
                                     Set<String> skipVariables,
                                     Map<String,INDArray> gradCheckMask)

checkGradients

public static boolean checkGradients(SameDiff sd,
                                     Map<String,INDArray> placeholderValues,
                                     double eps,
                                     double maxRelError,
                                     double minAbsError,
                                     boolean print,
                                     boolean exitOnFirstFailure,
                                     boolean skipValidation,
                                     boolean debugMode,
                                     Set<String> skipVariables,
                                     Map<String,INDArray> gradCheckMask,
                                     int maxPerParam,
                                     GradCheckUtil.Subset subset)

checkActivationGradients

public static boolean checkActivationGradients(GradCheckUtil.ActGradConfig config)

Gradient check the ACTIVATIONS (i.e., ARRAY type SDVariables) as opposed to the parameters of a network (as are tested in checkGradients(SameDiff, Map, double, double, double, boolean, boolean, boolean, boolean, Set, Map, int, Subset)

Parameters:

config - Configuration for gradient check

Returns:

True if gradient checks pass

validateInternalState

public static void validateInternalState(SameDiff sd,
                                         boolean generateAndCheckGradFn)