org.locationtech.geowave.analytic.sample.function

Interface SamplingRankFunction<T>

All Known Implementing Classes:

CentroidDistanceBasedSamplingRankFunction, RandomSamplingRankFunction

public interface SamplingRankFunction<T>

Used by KSamplerMapReduce to rank an object for selection in the sample set. The top k highest ranked objects are sampled. Rank is between 0.0 and 1.0 inclusive.

Method Summary

Modifier and Type	Method and Description
void	initialize(org.apache.hadoop.mapreduce.JobContext context, Class<?> scope, org.slf4j.Logger logger)
double	rank(int sampleSize, T value)

Method Detail

initialize

void initialize(org.apache.hadoop.mapreduce.JobContext context,
                Class<?> scope,
                org.slf4j.Logger logger)
         throws IOException

Throws:

IOException

rank

double rank(int sampleSize,
            T value)