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java.lang.Object de.lmu.ifi.dbs.elki.index.AbstractIndex<O> de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex<NV,PCAFilteredResult> de.lmu.ifi.dbs.elki.index.preprocessed.localpca.AbstractFilteredPCAIndex<NV> de.lmu.ifi.dbs.elki.index.preprocessed.localpca.KNNQueryFilteredPCAIndex<NV>
NV
- Vector type@Title(value="Knn Query Based Local PCA Preprocessor") @Description(value="Materializes the local PCA and the locally weighted matrix of objects of a database. The PCA is based on k nearest neighbor queries.") public class KNNQueryFilteredPCAIndex<NV extends NumberVector<? extends NV,?>>
Provides the local neighborhood to be considered in the PCA as the k nearest neighbors of an object.
Nested Class Summary | |
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static class |
KNNQueryFilteredPCAIndex.Factory<V extends NumberVector<V,?>>
Factory class |
Field Summary | |
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private int |
k
Query k |
private KNNQuery<NV,DoubleDistance> |
knnQuery
The kNN query instance we use |
private static Logging |
logger
Logger. |
Fields inherited from class de.lmu.ifi.dbs.elki.index.preprocessed.localpca.AbstractFilteredPCAIndex |
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pca |
Fields inherited from class de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex |
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storage |
Fields inherited from class de.lmu.ifi.dbs.elki.index.AbstractIndex |
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relation |
Constructor Summary | |
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KNNQueryFilteredPCAIndex(Relation<NV> database,
PCAFilteredRunner<NV> pca,
KNNQuery<NV,DoubleDistance> knnQuery,
int k)
Constructor. |
Method Summary | |
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Logging |
getLogger()
Get the classes static logger. |
String |
getLongName()
A "pretty" name for the result, for use in titles, captions and menus. |
String |
getShortName()
A short name for the result, useful for file names. |
protected List<DistanceResultPair<DoubleDistance>> |
objectsForPCA(DBID id)
Returns the objects to be considered within the PCA for the specified query object. |
Methods inherited from class de.lmu.ifi.dbs.elki.index.preprocessed.localpca.AbstractFilteredPCAIndex |
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getLocalProjection, preprocess |
Methods inherited from class de.lmu.ifi.dbs.elki.index.AbstractIndex |
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delete, deleteAll, getPageFileStatistics, insert, insertAll |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface de.lmu.ifi.dbs.elki.index.Index |
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delete, deleteAll, getPageFileStatistics, insert, insertAll |
Field Detail |
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private static final Logging logger
private final KNNQuery<NV extends NumberVector<? extends NV,?>,DoubleDistance> knnQuery
private final int k
Constructor Detail |
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public KNNQueryFilteredPCAIndex(Relation<NV> database, PCAFilteredRunner<NV> pca, KNNQuery<NV,DoubleDistance> knnQuery, int k)
database
- Database to usepca
- PCA Runner to useknnQuery
- KNN Query to usek
- k valueMethod Detail |
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protected List<DistanceResultPair<DoubleDistance>> objectsForPCA(DBID id)
AbstractFilteredPCAIndex
objectsForPCA
in class AbstractFilteredPCAIndex<NV extends NumberVector<? extends NV,?>>
id
- the id of the query object for which a PCA should be performed
public String getLongName()
Result
getLongName
in interface Result
getLongName
in class AbstractIndex<NV extends NumberVector<? extends NV,?>>
public String getShortName()
Result
getShortName
in interface Result
getShortName
in class AbstractIndex<NV extends NumberVector<? extends NV,?>>
public Logging getLogger()
AbstractPreprocessorIndex
getLogger
in class AbstractPreprocessorIndex<NV extends NumberVector<? extends NV,?>,PCAFilteredResult>
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