## Uses of Classde.lmu.ifi.dbs.elki.distance.distancefunction.AbstractDatabaseDistanceFunction

• Packages that use AbstractDatabaseDistanceFunction
Package Description
de.lmu.ifi.dbs.elki.distance.distancefunction
Distance functions for use within ELKI.
Distance functions deriving distances from, e.g., similarity measures
de.lmu.ifi.dbs.elki.distance.distancefunction.external
Distance functions using external data sources
• ### Uses of AbstractDatabaseDistanceFunction in de.lmu.ifi.dbs.elki.distance.distancefunction

Modifier and Type Class and Description
class  AbstractDBIDRangeDistanceFunction
Abstract base class for distance functions that rely on integer offsets within a consecutive range.
class  AbstractIndexBasedDistanceFunction<O,F extends IndexFactory<O>>
Abstract super class for distance functions needing a database index.
class  RandomStableDistanceFunction
This is a dummy distance providing random values (obviously not metrical), useful mostly for unit tests and baseline evaluations: obviously this distance provides no benefit whatsoever.
class  SharedNearestNeighborJaccardDistanceFunction<O>
SharedNearestNeighborJaccardDistanceFunction computes the Jaccard coefficient, which is a proper distance metric.
• ### Uses of AbstractDatabaseDistanceFunction in de.lmu.ifi.dbs.elki.distance.distancefunction.adapter

Modifier and Type Class and Description
class  AbstractSimilarityAdapter<O>
Adapter from a similarity function to a distance function.
class  ArccosSimilarityAdapter<O>
Adapter from a normalized similarity function to a distance function using arccos(sim).
class  LinearAdapterLinear<O>
Adapter from a normalized similarity function to a distance function using 1 - sim.
class  LnSimilarityAdapter<O>
Adapter from a normalized similarity function to a distance function using -log(sim).
• ### Uses of AbstractDatabaseDistanceFunction in de.lmu.ifi.dbs.elki.distance.distancefunction.external

Modifier and Type Class and Description
class  DiskCacheBasedDoubleDistanceFunction
Distance function that is based on double distances given by a distance matrix of an external binary matrix file.
class  DiskCacheBasedFloatDistanceFunction
Distance function that is based on float distances given by a distance matrix of an external binary matrix file.
class  FileBasedSparseDoubleDistanceFunction
Distance function that is based on double distances given by a distance matrix of an external ASCII file.
class  FileBasedSparseFloatDistanceFunction
Distance function that is based on float distances given by a distance matrix of an external ASCII file.