Examples of org.apache.lucene.facet.search.sampling.SamplingAccumulator

Package org.apache.lucene.facet.search.sampling

Examples of org.apache.lucene.facet.search.sampling.SamplingAccumulator

org.apache.lucene.facet.search.sampling.SamplingAccumulator
Facets accumulation with sampling.

Note two major differences between this class and {@link SamplingWrapper}:
1. Latter can wrap any other {@link FacetsAccumulator} while this classdirectly extends {@link StandardFacetsAccumulator}.
2. This class can effectively apply sampling on the complement set of matching document, thereby working efficiently with the complement optimization - see {@link FacetsAccumulator#getComplementThreshold()}.
Note: Sampling accumulation (Accumulation over a sampled-set of the results), does not guarantee accurate values for {@link FacetResult#getNumValidDescendants()} &{@link FacetResultNode#getResidue()}. @see Sampler @lucene.experimental

    // Verify that sampling is enabled and required ... otherwise do default
    if (sampler == null || !sampler.shouldSample(docids)) {
      return this;
    }
    
    SamplingAccumulator samplingAccumulator = new SamplingAccumulator(sampler, searchParams, indexReader, taxonomyReader);
    samplingAccumulator.setComplementThreshold(getComplementThreshold());
    return samplingAccumulator;
  }

View Full Code Here

    // Verify that sampling is enabled and required ... otherwise do default
    if (sampler == null || !sampler.shouldSample(docids)) {
      return this;
    }
    
    SamplingAccumulator samplingAccumulator = new SamplingAccumulator(sampler, searchParams, indexReader, taxonomyReader);
    samplingAccumulator.setComplementThreshold(getComplementThreshold());
    return samplingAccumulator;
  }

View Full Code Here

TOP

Related Classes of org.apache.lucene.facet.search.sampling.SamplingAccumulator

org.apache.lucene.facet.search.AdaptiveFacetsAccumulator

org.apache.lucene.facet.search.FacetResultsHandler

org.apache.lucene.facet.search.params.FacetSearchParams

org.apache.lucene.facet.search.sampling.Sampler.SampleResult

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.