Package opennlp.tools.ml.model
Interface DataIndexer
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- All Known Implementing Classes:
AbstractDataIndexer
,OnePassDataIndexer
,OnePassRealValueDataIndexer
,TwoPassDataIndexer
public interface DataIndexer
Object which compresses events in memory and performs feature selection.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description 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.java.lang.String[]
getOutcomeLabels()
Returns an array of outcome names.int[]
getOutcomeList()
Returns an array indicating the outcome index for each event.int[]
getPredCounts()
Returns an array of the count of each predicate in the events.java.lang.String[]
getPredLabels()
Returns an array of predicate/context names.float[][]
getValues()
Returns the values associated with each event context or null if integer values are to be used.
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Method Detail
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getContexts
int[][] getContexts()
Returns the array of predicates seen in each event.- Returns:
- a 2-D array whose first dimension is the event index and array this refers to contains the contexts for that event.
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getNumTimesEventsSeen
int[] getNumTimesEventsSeen()
Returns an array indicating the number of times a particular event was seen.- Returns:
- an array indexed by the event index indicating the number of times a particular event was seen.
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getOutcomeList
int[] getOutcomeList()
Returns an array indicating the outcome index for each event.- Returns:
- an array indicating the outcome index for each event.
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getPredLabels
java.lang.String[] getPredLabels()
Returns an array of predicate/context names.- Returns:
- an array of predicate/context names indexed by context index. These indices are the
value of the array returned by
getContexts
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getPredCounts
int[] getPredCounts()
Returns an array of the count of each predicate in the events.- Returns:
- an array of the count of each predicate in the events.
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getOutcomeLabels
java.lang.String[] getOutcomeLabels()
Returns an array of outcome names.- Returns:
- an array of outcome names indexed by outcome index.
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getValues
float[][] getValues()
Returns the values associated with each event context or null if integer values are to be used.- Returns:
- the values associated with each event context.
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getNumEvents
int getNumEvents()
Returns the number of total events indexed.- Returns:
- The number of total events indexed.
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