|
|
|||||||||||||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||||||||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object de.lmu.ifi.dbs.elki.logging.AbstractLoggable de.lmu.ifi.dbs.elki.math.linearalgebra.pca.LimitEigenPairFilter
@Title(value="Limit-based Eigenpair Filter") @Description(value="Filters all eigenpairs, which are lower than a given value.") public class LimitEigenPairFilter
The LimitEigenPairFilter marks all eigenpairs having an (absolute) eigenvalue below the specified threshold (relative or absolute) as weak eigenpairs, the others are marked as strong eigenpairs.
Field Summary | |
---|---|
private boolean |
absolute
Indicates whether delta is an absolute or a relative value. |
private Flag |
ABSOLUTE_FLAG
"absolute" Flag |
static double |
DEFAULT_DELTA
The default value for delta. |
private double |
delta
Threshold for strong eigenpairs, can be absolute or relative. |
private DoubleParameter |
DELTA_PARAM
Parameter delta |
static OptionID |
EIGENPAIR_FILTER_ABSOLUTE
OptionID for ABSOLUTE_FLAG |
static OptionID |
EIGENPAIR_FILTER_DELTA
OptionID for DELTA_PARAM |
Fields inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable |
---|
debug, logger |
Constructor Summary | |
---|---|
LimitEigenPairFilter(Parameterization config)
Constructor, adhering to Parameterizable |
Method Summary | |
---|---|
FilteredEigenPairs |
filter(SortedEigenPairs eigenPairs)
Filters the specified eigenpairs into strong and weak eigenpairs, where strong eigenpairs having high variances and weak eigenpairs having small variances. |
Methods inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable |
---|
debugFine, debugFiner, debugFinest, exception, progress, verbose, warning |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static final OptionID EIGENPAIR_FILTER_ABSOLUTE
ABSOLUTE_FLAG
public static final OptionID EIGENPAIR_FILTER_DELTA
DELTA_PARAM
private final Flag ABSOLUTE_FLAG
public static final double DEFAULT_DELTA
private final DoubleParameter DELTA_PARAM
private double delta
private boolean absolute
Constructor Detail |
---|
public LimitEigenPairFilter(Parameterization config)
Parameterizable
config
- ParameterizationMethod Detail |
---|
public FilteredEigenPairs filter(SortedEigenPairs eigenPairs)
EigenPairFilter
filter
in interface EigenPairFilter
eigenPairs
- the eigenPairs (i.e. the eigenvectors and
|
|
|||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |