| Package | Description | 
|---|---|
| de.lmu.ifi.dbs.elki.algorithm | 
 Algorithms suitable as a task for the  
KDDTask main routine. | 
| de.lmu.ifi.dbs.elki.algorithm.clustering | 
 Clustering algorithms
 
 Clustering algorithms are supposed to implement the  
Algorithm-Interface. | 
| de.lmu.ifi.dbs.elki.algorithm.clustering.correlation | 
 Correlation clustering algorithms 
 | 
| de.lmu.ifi.dbs.elki.algorithm.clustering.correlation.cash | 
 Helper classes for the  
CASH algorithm. | 
| de.lmu.ifi.dbs.elki.algorithm.clustering.subspace | 
 Axis-parallel subspace clustering algorithms
 
 The clustering algorithms in this package are instances of both, projected clustering algorithms or
 subspace clustering algorithms according to the classical but somewhat obsolete classification schema
 of clustering algorithms for axis-parallel subspaces. 
 | 
| de.lmu.ifi.dbs.elki.algorithm.clustering.subspace.clique | 
 Helper classes for the  
CLIQUE algorithm. | 
| de.lmu.ifi.dbs.elki.algorithm.clustering.trivial | 
 Trivial clustering algorithms: all in one, no clusters, label clusterings
 
 These methods are mostly useful for providing a reference result in evaluation. 
 | 
| de.lmu.ifi.dbs.elki.algorithm.outlier | 
 Outlier detection algorithms 
 | 
| de.lmu.ifi.dbs.elki.algorithm.outlier.spatial | 
 Spatial outlier detection algorithms 
 | 
| de.lmu.ifi.dbs.elki.algorithm.outlier.spatial.neighborhood | 
 Spatial outlier neighborhood classes 
 | 
| de.lmu.ifi.dbs.elki.algorithm.outlier.spatial.neighborhood.weighted | 
 Weighted Neighborhood definitions. 
 | 
| de.lmu.ifi.dbs.elki.algorithm.statistics | 
 Statistical analysis algorithms
 
  The algorithms in this package perform statistical analysis of the data
  (e.g. compute distributions, distance distributions etc.) 
 | 
| de.lmu.ifi.dbs.elki.application.jsmap | 
 JavaScript based map client - server architecture. 
 | 
| de.lmu.ifi.dbs.elki.application.visualization | 
 Visualization applications in ELKI. 
 | 
| de.lmu.ifi.dbs.elki.data | 
 Basic classes for different data types, database object types and label types. 
 | 
| de.lmu.ifi.dbs.elki.data.model | 
 Cluster models classes for various algorithms. 
 | 
| de.lmu.ifi.dbs.elki.data.type | 
 Data type information, also used for type restrictions. 
 | 
| de.lmu.ifi.dbs.elki.database | 
 ELKI database layer - loading, storing, indexing and accessing data 
 | 
| de.lmu.ifi.dbs.elki.database.datastore | 
 General data store layer API (along the lines of  
Map<DBID, T> - use everywhere!) | 
| de.lmu.ifi.dbs.elki.database.datastore.memory | 
 Memory data store implementation for ELKI. 
 | 
| de.lmu.ifi.dbs.elki.database.ids | 
 Database object identification and ID group handling API. 
 | 
| de.lmu.ifi.dbs.elki.database.ids.generic | 
 Database object identification and ID group handling - generic implementations. 
 | 
| de.lmu.ifi.dbs.elki.database.ids.integer | 
 Integer-based DBID implementation --
 do not use directly - always use  
DBIDUtil. | 
| de.lmu.ifi.dbs.elki.database.query | 
 Database queries - computing distances, neighbors, similarities - API and general documentation. 
 | 
| de.lmu.ifi.dbs.elki.database.query.distance | 
 Prepared queries for distances. 
 | 
| de.lmu.ifi.dbs.elki.database.query.knn | 
 Prepared queries for k nearest neighbor (kNN) queries. 
 | 
| de.lmu.ifi.dbs.elki.database.query.range | 
 Prepared queries for ε-range queries. 
 | 
| de.lmu.ifi.dbs.elki.database.query.rknn | 
 Prepared queries for reverse k nearest neighbor (rkNN) queries. 
 | 
| de.lmu.ifi.dbs.elki.database.query.similarity | 
 Prepared queries for similarity functions. 
 | 
| de.lmu.ifi.dbs.elki.database.relation | 
 Relations, materialized and virtual (views). 
 | 
| de.lmu.ifi.dbs.elki.datasource.parser | 
 Parsers for different file formats and data types. 
 | 
| de.lmu.ifi.dbs.elki.distance.distancefunction | 
 Distance functions for use within ELKI. 
 | 
| de.lmu.ifi.dbs.elki.distance.distancefunction.adapter | 
 Distance functions deriving distances from e.g. similarity measures 
 | 
| de.lmu.ifi.dbs.elki.distance.distancefunction.correlation | 
 Distance functions using correlations. 
 | 
| de.lmu.ifi.dbs.elki.distance.distancefunction.external | 
 Distance functions using external data sources. 
 | 
| de.lmu.ifi.dbs.elki.distance.distancefunction.subspace | 
 Distance functions based on subspaces. 
 | 
| de.lmu.ifi.dbs.elki.distance.similarityfunction | 
 Similarity functions. 
 | 
| de.lmu.ifi.dbs.elki.distance.similarityfunction.kernel | 
 Kernel functions. 
 | 
| de.lmu.ifi.dbs.elki.evaluation.outlier | 
 Evaluate an outlier score using a misclassification based cost model. 
 | 
| de.lmu.ifi.dbs.elki.evaluation.roc | 
 Evaluation of rankings using ROC AUC (Receiver Operation Characteristics - Area Under Curve) 
 | 
| de.lmu.ifi.dbs.elki.evaluation.similaritymatrix | 
 Render a distance matrix to visualize a clustering-distance-combination. 
 | 
| de.lmu.ifi.dbs.elki.index | 
 Index structure implementations 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed | 
 Index structure based on preprocessors 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed.knn | 
 Indexes providing KNN and rKNN data. 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed.localpca | 
 Index using a preprocessed local PCA. 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed.preference | 
 Indexes storing preference vectors. 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed.snn | 
 Indexes providing nearest neighbor sets 
 | 
| de.lmu.ifi.dbs.elki.index.preprocessed.subspaceproj | 
 Index using a preprocessed local subspaces. 
 | 
| de.lmu.ifi.dbs.elki.index.tree | 
 Tree-based index structures 
 | 
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants | 
 M-Tree and variants. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees | 
 Metrical index structures based on the concepts of the M-Tree
 supporting processing of reverse k nearest neighbor queries by
 using the k-nn distances of the entries. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mkapp | |
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mkcop | |
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mkmax | |
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mktab | |
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mtree | |
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.query | 
 Classes for performing queries (knn, range, ...) on metrical trees. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.split | 
 Splitting strategies of nodes in an M-Tree (and variants). 
 | 
| de.lmu.ifi.dbs.elki.index.tree.query | 
 Classes related to generic tree queries. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.spatial | 
 Tree-based index structures for spatial indexing. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants | 
 R*-Tree and variants. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.deliclu | |
| de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.query | 
 Queries on the R-Tree family of indexes: kNN and range queries. 
 | 
| de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.rstar | |
| de.lmu.ifi.dbs.elki.math.linearalgebra | 
 Linear Algebra package provides classes and computational methods for operations on matrices. 
 | 
| de.lmu.ifi.dbs.elki.math.linearalgebra.pca | 
 Principal Component Analysis (PCA) and Eigenvector processing. 
 | 
| de.lmu.ifi.dbs.elki.math.spacefillingcurves | 
 Space filling curves. 
 | 
| de.lmu.ifi.dbs.elki.result | 
 Result types, representation and handling 
 | 
| de.lmu.ifi.dbs.elki.result.optics | 
 Result classes for OPTICS. 
 | 
| de.lmu.ifi.dbs.elki.result.outlier | 
 Outlier result classes 
 | 
| de.lmu.ifi.dbs.elki.result.textwriter | 
 Text serialization (CSV, Gnuplot, Console, ...) 
 | 
| de.lmu.ifi.dbs.elki.utilities | 
 Utility and helper classes - commonly used data structures, output formatting, exceptions, ... 
 | 
| de.lmu.ifi.dbs.elki.utilities.datastructures.heap | 
 Heap structures and variations such as bounded priority heaps. 
 | 
| de.lmu.ifi.dbs.elki.utilities.exceptions | 
 Exception classes and common exception messages. 
 | 
| de.lmu.ifi.dbs.elki.utilities.scaling.outlier | 
 Scaling of Outlier scores, that require a statistical analysis of the occurring values 
 | 
| de.lmu.ifi.dbs.elki.visualization.gui | 
 Package to provide a visualization GUI. 
 | 
| de.lmu.ifi.dbs.elki.visualization.opticsplot | 
 Code for drawing OPTICS plots 
 | 
| de.lmu.ifi.dbs.elki.visualization.visualizers.vis2d | 
 Visualizers based on 2D projections. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| HashSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| StaticDBIDs
 Unmodifiable DBIDs. 
 | 
| TreeSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDRange
 Static DBID range. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| ArrayStaticDBIDs
 Unmodifiable, indexed DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDFactory
 Factory interface for generating DBIDs. 
 | 
| DBIDPair
 Immutable pair of two DBIDs. 
 | 
| DBIDRange
 Static DBID range. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| EmptyDBIDs
 Empty DBID collection. 
 | 
| HashSetDBIDs
 Hash-organized DBIDs 
 | 
| HashSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| SetDBIDs
 Interface for DBIDs that support fast "set" operations, in particular
 "contains" lookups. 
 | 
| StaticDBIDs
 Unmodifiable DBIDs. 
 | 
| TreeSetDBIDs
 Marker for sorted, tree-organized DBIDs 
 | 
| TreeSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| HashSetDBIDs
 Hash-organized DBIDs 
 | 
| HashSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| SetDBIDs
 Interface for DBIDs that support fast "set" operations, in particular
 "contains" lookups. 
 | 
| StaticDBIDs
 Unmodifiable DBIDs. 
 | 
| TreeSetDBIDs
 Marker for sorted, tree-organized DBIDs 
 | 
| TreeSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| ArrayStaticDBIDs
 Unmodifiable, indexed DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDFactory
 Factory interface for generating DBIDs. 
 | 
| DBIDPair
 Immutable pair of two DBIDs. 
 | 
| DBIDRange
 Static DBID range. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| HashSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| StaticDBIDs
 Unmodifiable DBIDs. 
 | 
| TreeSetModifiableDBIDs
 Set-oriented implementation of a modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| StaticDBIDs
 Unmodifiable DBIDs. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDPair
 Immutable pair of two DBIDs. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| TreeSetDBIDs
 Marker for sorted, tree-organized DBIDs 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDPair
 Immutable pair of two DBIDs. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| SetDBIDs
 Interface for DBIDs that support fast "set" operations, in particular
 "contains" lookups. 
 | 
| TreeSetDBIDs
 Marker for sorted, tree-organized DBIDs 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| Class and Description | 
|---|
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDPair
 Immutable pair of two DBIDs. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| SetDBIDs
 Interface for DBIDs that support fast "set" operations, in particular
 "contains" lookups. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| TreeSetDBIDs
 Marker for sorted, tree-organized DBIDs 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| ModifiableDBIDs
 Interface for a generic modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| ArrayDBIDs
 Interface for array based DBIDs. 
 | 
| Class and Description | 
|---|
| ArrayModifiableDBIDs
 Array-oriented implementation of a modifiable DBID collection. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| Class and Description | 
|---|
| DBID
 Database ID object. 
 | 
| DBIDs
 Interface for a collection of database references (IDs). 
 |