edu.stanford.nlp.dbm
Class DataSet

java.lang.Object
  |
  +--java.util.AbstractCollection
        |
        +--java.util.AbstractList
              |
              +--edu.stanford.nlp.dbm.AbstractDataCollection
                    |
                    +--edu.stanford.nlp.dbm.FileDataCollection
                          |
                          +--edu.stanford.nlp.dbm.DataSet

All Implemented Interfaces:

Collection, DataCollection, List

Direct Known Subclasses:

ContextSet

public abstract class DataSet

extends FileDataCollection

A Data Collection that does not allow duplicate data. If a datum occurs multiple times, the feature vectors are additively combined.

Field Summary

Fields inherited from class edu.stanford.nlp.dbm.FileDataCollection

datamatrix, numdocs

Fields inherited from class edu.stanford.nlp.dbm.AbstractDataCollection

data, features, name

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

DataSet(String filename)
Creates a DataSet given a filename which contains a collection of DataSet articles in XML representation.

Method Summary

int	add(Datum d) inserts a Datum into the Data Collection assigns Datum to lowest unassigned index in FileDataCollection and returns this index note: this allows for duplicate objects to be stored with different indices.
protected void	setDefaults(String filename) Sets DataMatrix, List, Processors, to default values, where features and data are stored in memory.
protected void	setDefaults(String filename, String dir) Sets DataMatrix, List, Processors, to default values, where features and data are stored on disk in directory dir.

Methods inherited from class edu.stanford.nlp.dbm.FileDataCollection

dataMatrix, features, fileIterator, populate, set, set, set

Methods inherited from class edu.stanford.nlp.dbm.AbstractDataCollection

get, name, size, toString, toXMLString

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, subList, toArray, toArray

Constructor Detail

DataSet

public DataSet(String filename)
        throws IOException

Creates a DataSet given a filename which contains a collection of DataSet articles in XML representation. Stores data, features, and their respective indices in memory.

Method Detail

setDefaults

protected void setDefaults(String filename)

Sets DataMatrix, List, Processors, to default values, where features and data are stored in memory.

Overrides:

setDefaults in class FileDataCollection

setDefaults

protected void setDefaults(String filename,
                           String dir)
                    throws IOException

Sets DataMatrix, List, Processors, to default values, where features and data are stored on disk in directory dir.

Overrides:

setDefaults in class FileDataCollection

IOException

add

public int add(Datum d)

inserts a Datum into the Data Collection assigns Datum to lowest unassigned index in FileDataCollection and returns this index note: this allows for duplicate objects to be stored with different indices.

Specified by:

add in interface DataCollection

Overrides:

add in class FileDataCollection