public abstract class AbstractDataIndexer extends Object implements DataIndexer
Modifier and Type | Field and Description |
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protected int[][] |
contexts
The integer contexts associated with each unique event.
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protected int[] |
numTimesEventsSeen
The number of times an event occured in the training data.
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protected String[] |
outcomeLabels
The names of the outcomes.
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protected int[] |
outcomeList
The integer outcome associated with each unique event.
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protected int[] |
predCounts
The number of times each predicate occured.
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protected String[] |
predLabels
The predicate/context names.
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Constructor and Description |
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AbstractDataIndexer() |
Modifier and Type | Method and Description |
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int[][] |
getContexts()
Returns the array of predicates seen in each event.
|
int |
getNumEvents()
Returns the number of total events indexed.
|
int[] |
getNumTimesEventsSeen()
Returns an array indicating the number of times a particular event was seen.
|
String[] |
getOutcomeLabels()
Returns an array of outcome names.
|
int[] |
getOutcomeList()
Returns an array indicating the outcome index for each event.
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int[] |
getPredCounts()
Returns an array of the count of each predicate in the events.
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String[] |
getPredLabels()
Returns an array of predicate/context names.
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float[][] |
getValues()
Returns the values associated with each event context or null if integer values are to be used.
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protected int |
sortAndMerge(List<ComparableEvent> eventsToCompare,
boolean sort)
Sorts and uniques the array of comparable events and return the number of unique events.
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protected static String[] |
toIndexedStringArray(Map<String,Integer> labelToIndexMap)
Utility method for creating a String[] array from a map whose
keys are labels (Strings) to be stored in the array and whose
values are the indices (Integers) at which the corresponding
labels should be inserted.
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protected static void |
update(String[] ec,
Set<String> predicateSet,
Map<String,Integer> counter,
int cutoff)
Updates the set of predicated and counter with the specified event contexts and cutoff.
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protected int[][] contexts
protected int[] outcomeList
protected int[] numTimesEventsSeen
protected String[] predLabels
protected String[] outcomeLabels
protected int[] predCounts
public int[][] getContexts()
DataIndexer
getContexts
in interface DataIndexer
public int[] getNumTimesEventsSeen()
DataIndexer
getNumTimesEventsSeen
in interface DataIndexer
public int[] getOutcomeList()
DataIndexer
getOutcomeList
in interface DataIndexer
public String[] getPredLabels()
DataIndexer
getPredLabels
in interface DataIndexer
getContexts
.public String[] getOutcomeLabels()
DataIndexer
getOutcomeLabels
in interface DataIndexer
public int[] getPredCounts()
DataIndexer
getPredCounts
in interface DataIndexer
protected int sortAndMerge(List<ComparableEvent> eventsToCompare, boolean sort)
eventsToCompare
- a ComparableEvent[]
valuepublic int getNumEvents()
DataIndexer
getNumEvents
in interface DataIndexer
protected static void update(String[] ec, Set<String> predicateSet, Map<String,Integer> counter, int cutoff)
ec
- The contexts/features which occur in a event.predicateSet
- The set of predicates which will be used for model building.counter
- The predicate counters.cutoff
- The cutoff which determines whether a predicate is included.protected static String[] toIndexedStringArray(Map<String,Integer> labelToIndexMap)
labelToIndexMap
- a TObjectIntHashMap
valueString[]
valuepublic float[][] getValues()
DataIndexer
getValues
in interface DataIndexer
Copyright © 2019 The Apache Software Foundation. All rights reserved.