szte.csd.indicatorsel
Class MutualInfoIndicatorSelector
java.lang.Object
szte.csd.indicatorsel.MutualInfoIndicatorSelector
- All Implemented Interfaces:
- IndicatorSelector
public class MutualInfoIndicatorSelector
- extends java.lang.Object
The mutual information indicator selector.
MI(C,w) = SUM p(c,w)*log p(c|w)/p(c)
where C \in {POS,NEG} the classes
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
MutualInfoIndicatorSelector
public MutualInfoIndicatorSelector()
calcFeatureScore
public double calcFeatureScore(java.util.Map<java.lang.Boolean,java.lang.Double> df,
java.util.Map<java.lang.Boolean,java.lang.Double> n)
getTopRankedFeatures
public java.util.Set<java.lang.String> getTopRankedFeatures(DataHandler vsm)
throws DataMiningException
- Throws:
DataMiningException
reset
public void reset()
getIndicators
public java.util.Set<java.lang.String> getIndicators(DataHandler vsm)
throws DataMiningException
- The greedy selection of features based on the calcFeatureScore abstract method. It cacultes basic frequencies for the different feature evaluators.
- Specified by:
getIndicators
in interface IndicatorSelector
- Throws:
DataMiningException
setThreshold
public void setThreshold(double t)
- Specified by:
setThreshold
in interface IndicatorSelector