Package ciir.umass.edu.metric
Class APScorer
- java.lang.Object
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- ciir.umass.edu.metric.MetricScorer
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- ciir.umass.edu.metric.APScorer
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public class APScorer extends MetricScorer
- Author:
- vdang This class implements MAP (Mean Average Precision)
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Field Summary
Fields Modifier and Type Field Description java.util.HashMap<java.lang.String,java.lang.Integer>relDocCount-
Fields inherited from class ciir.umass.edu.metric.MetricScorer
k
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Constructor Summary
Constructors Constructor Description APScorer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description MetricScorercopy()voidloadExternalRelevanceJudgment(java.lang.String qrelFile)java.lang.Stringname()doublescore(RankList rl)Compute Average Precision (AP) of the list.double[][]swapChange(RankList rl)-
Methods inherited from class ciir.umass.edu.metric.MetricScorer
getK, getRelevanceLabels, score, setK
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Method Detail
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copy
public MetricScorer copy()
- Specified by:
copyin classMetricScorer
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loadExternalRelevanceJudgment
public void loadExternalRelevanceJudgment(java.lang.String qrelFile)
- Overrides:
loadExternalRelevanceJudgmentin classMetricScorer
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score
public double score(RankList rl)
Compute Average Precision (AP) of the list. AP of a list is the average of precision evaluated at ranks where a relevant document is observed.- Specified by:
scorein classMetricScorer- Returns:
- AP of the list.
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name
public java.lang.String name()
- Specified by:
namein classMetricScorer
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swapChange
public double[][] swapChange(RankList rl)
- Specified by:
swapChangein classMetricScorer
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