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java.lang.Objectweka.clusterers.forOPTICSAndDBScan.Databases.SequentialDatabase
public class SequentialDatabase
SequentialDatabase.java
Authors: Rainer Holzmann, Zhanna Melnikova-Albrecht, Matthias Schubert
Date: Aug 20, 2004
Time: 1:23:38 PM
$ Revision 1.4 $
Constructor Summary | |
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SequentialDatabase(Instances instances)
Constructs a new sequential database and holds the original instances |
Method Summary | |
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boolean |
contains(DataObject dataObject_Query)
Tests if the database contains the dataObject_Query |
java.util.List |
coreDistance(int minPoints,
double epsilon,
DataObject dataObject)
Calculates the coreDistance for the specified DataObject. |
java.util.Iterator |
dataObjectIterator()
Returns an iterator over all the dataObjects in the database |
java.util.List |
epsilonRangeQuery(double epsilon,
DataObject queryDataObject)
Performs an epsilon range query for this dataObject |
double[] |
getAttributeMaxValues()
Returns the array of maximum-values for each attribute |
double[] |
getAttributeMinValues()
Returns the array of minimum-values for each attribute |
DataObject |
getDataObject(java.lang.String key)
Select a dataObject from the database |
Instances |
getInstances()
Returns the original instances delivered from WEKA |
void |
insert(DataObject dataObject)
Inserts a new dataObject into the database |
java.util.List |
k_nextNeighbourQuery(int k,
double epsilon,
DataObject dataObject)
Emits the k next-neighbours and performs an epsilon-range-query at the parallel. |
java.util.Iterator |
keyIterator()
Returns an iterator over all the keys |
void |
setMinMaxValues()
Sets the minimum and maximum values for each attribute in different arrays by walking through every DataObject of the database |
int |
size()
Returns the size of the database (the number of dataObjects in the database) |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SequentialDatabase(Instances instances)
instances
- Method Detail |
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public DataObject getDataObject(java.lang.String key)
getDataObject
in interface Database
key
- The key that is associated with the dataObject
public void setMinMaxValues()
setMinMaxValues
in interface Database
public double[] getAttributeMinValues()
getAttributeMinValues
in interface Database
public double[] getAttributeMaxValues()
getAttributeMaxValues
in interface Database
public java.util.List epsilonRangeQuery(double epsilon, DataObject queryDataObject)
epsilonRangeQuery
in interface Database
epsilon
- Specifies the range for the queryqueryDataObject
- The dataObject that is used as query-object for epsilon range query
public java.util.List k_nextNeighbourQuery(int k, double epsilon, DataObject dataObject)
k_nextNeighbourQuery
in interface Database
k
- number of next neighboursepsilon
- Specifies the range for the querydataObject
- the start object
public java.util.List coreDistance(int minPoints, double epsilon, DataObject dataObject)
coreDistance
in interface Database
minPoints
- minPoints-many neighbours within epsilon must be found to have a non-undefined coreDistanceepsilon
- Specifies the range for the querydataObject
- Calculate coreDistance for this dataObject
public int size()
size
in interface Database
public java.util.Iterator keyIterator()
keyIterator
in interface Database
public java.util.Iterator dataObjectIterator()
dataObjectIterator
in interface Database
public boolean contains(DataObject dataObject_Query)
contains
in interface Database
dataObject_Query
- The query-object
public void insert(DataObject dataObject)
insert
in interface Database
dataObject
- public Instances getInstances()
getInstances
in interface Database
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