Examples of org.apache.lucene.search.ComplexExplanation

org.apache.lucene.search.ComplexExplanation
Expert: Describes the score computation for document and query, andcan distinguish a match independent of a positive value.

                    DocSet docSet = DocSets.convert(reader, filterFunction.filter.getDocIdSet(reader));
                    if (docSet.get(doc)) {
                        filterFunction.function.setNextReader(reader);
                        Explanation functionExplanation = filterFunction.function.explain(doc, subQueryExpl);
                        float sc = getValue() * functionExplanation.getValue();
                        Explanation res = new ComplexExplanation(true, sc, "custom score, product of:");
                        res.addDetail(new Explanation(1.0f, "match filter: " + filterFunction.filter.toString()));
                        res.addDetail(functionExplanation);
                        res.addDetail(new Explanation(getValue(), "queryBoost"));
                        return res;
                    }
                }
            } else {
                int count = 0;
                float total = 0;
                float max = Float.NEGATIVE_INFINITY;
                ArrayList<Explanation> filtersExplanations = new ArrayList<Explanation>();
                for (FilterFunction filterFunction : filterFunctions) {
                    DocSet docSet = DocSets.convert(reader, filterFunction.filter.getDocIdSet(reader));
                    if (docSet.get(doc)) {
                        filterFunction.function.setNextReader(reader);
                        Explanation functionExplanation = filterFunction.function.explain(doc, subQueryExpl);
                        float sc = functionExplanation.getValue();
                        count++;
                        total += sc;
                        max = Math.max(sc, max);
                        Explanation res = new ComplexExplanation(true, sc, "custom score, product of:");
                        res.addDetail(new Explanation(1.0f, "match filter: " + filterFunction.filter.toString()));
                        res.addDetail(functionExplanation);
                        res.addDetail(new Explanation(getValue(), "queryBoost"));
                        filtersExplanations.add(res);
                    }
                }
                if (count > 0) {
                    float sc = 0;
                    switch (scoreMode) {
                        case Avg:
                            sc = total / count;
                            break;
                        case Max:
                            sc = max;
                            break;
                        case Total:
                            sc = total;
                            break;
                    }
                    sc *= getValue();
                    Explanation res = new ComplexExplanation(true, sc, "custom score, score mode [" + scoreMode.toString().toLowerCase() + "]");
                    for (Explanation explanation : filtersExplanations) {
                        res.addDetail(explanation);
                    }
                    return res;
                }
            }


            float sc = getValue() * subQueryExpl.getValue();
            Explanation res = new ComplexExplanation(true, sc, "custom score, no filter match, product of:");
            res.addDetail(subQueryExpl);
            res.addDetail(new Explanation(getValue(), "queryBoost"));
            return res;
        }

View Full Code Here

            }


            function.setNextReader(reader);
            Explanation functionExplanation = function.explain(doc, subQueryExpl);
            float sc = getValue() * functionExplanation.getValue();
            Explanation res = new ComplexExplanation(true, sc, "custom score, product of:");
            res.addDetail(functionExplanation);
            res.addDetail(new Explanation(getValue(), "queryBoost"));
            return res;
        }

View Full Code Here

  }


  public Explanation explain(IndexReader reader, int doc)
    throws IOException {


    ComplexExplanation result = new ComplexExplanation();
    result.setDescription("weight("+getQuery()+" in "+doc+"), product of:");
    String field = ((SpanQuery)getQuery()).getField();


    StringBuffer docFreqs = new StringBuffer();
    Iterator i = terms.iterator();
    while (i.hasNext()) {
      Term term = (Term)i.next();
      docFreqs.append(term.text());
      docFreqs.append("=");
      docFreqs.append(reader.docFreq(term));


      if (i.hasNext()) {
        docFreqs.append(" ");
      }
    }


    Explanation idfExpl =
      new Explanation(idf, "idf(" + field + ": " + docFreqs + ")");


    // explain query weight
    Explanation queryExpl = new Explanation();
    queryExpl.setDescription("queryWeight(" + getQuery() + "), product of:");


    Explanation boostExpl = new Explanation(getQuery().getBoost(), "boost");
    if (getQuery().getBoost() != 1.0f)
      queryExpl.addDetail(boostExpl);
    queryExpl.addDetail(idfExpl);


    Explanation queryNormExpl = new Explanation(queryNorm,"queryNorm");
    queryExpl.addDetail(queryNormExpl);


    queryExpl.setValue(boostExpl.getValue() *
                       idfExpl.getValue() *
                       queryNormExpl.getValue());


    result.addDetail(queryExpl);


    // explain field weight
    ComplexExplanation fieldExpl = new ComplexExplanation();
    fieldExpl.setDescription("fieldWeight("+field+":"+query.toString(field)+
                             " in "+doc+"), product of:");


    Explanation tfExpl = scorer(reader).explain(doc);
    fieldExpl.addDetail(tfExpl);
    fieldExpl.addDetail(idfExpl);


    Explanation fieldNormExpl = new Explanation();
    byte[] fieldNorms = reader.norms(field);
    float fieldNorm =
      fieldNorms!=null ? Similarity.decodeNorm(fieldNorms[doc]) : 0.0f;
    fieldNormExpl.setValue(fieldNorm);
    fieldNormExpl.setDescription("fieldNorm(field="+field+", doc="+doc+")");
    fieldExpl.addDetail(fieldNormExpl);


    fieldExpl.setMatch(Boolean.valueOf(tfExpl.isMatch()));
    fieldExpl.setValue(tfExpl.getValue() *
                       idfExpl.getValue() *
                       fieldNormExpl.getValue());


    result.addDetail(fieldExpl);
    result.setMatch(fieldExpl.getMatch());


    // combine them
    result.setValue(queryExpl.getValue() * fieldExpl.getValue());


    if (queryExpl.getValue() == 1.0f)
      return fieldExpl;


    return result;

View Full Code Here

      if (scorer != null) {
        if (scorer.advance(doc) == doc) {
          return scorer.explain(context.docBase);
        }
      }
      return new ComplexExplanation(false, 0.0f, "Not a match");
    }

View Full Code Here

    }


    public Explanation explain(int docBase) throws IOException {
      int start = docBase + prevParentDoc + 1; // +1 b/c prevParentDoc is previous parent doc
      int end = docBase + parentDoc - 1; // -1 b/c parentDoc is parent doc
      return new ComplexExplanation(
          true, score(), String.format(Locale.ROOT, "Score based on child doc range from %d to %d", start, end)
      );
    }

View Full Code Here

        if (scorer != null) {
          if (scorer.advanceForExplainOnly(doc) == doc) {
            return scorer.explain();
          }
        }
        return new ComplexExplanation(false, 0.0f, "Not a match");
      }


      @Override
      public Query getQuery() {
        return TermsIncludingScoreQuery.this;

View Full Code Here

    public float score() throws IOException {
      return scores[ords[scoreUpto]];
    }


    public Explanation explain() throws IOException {
      return new ComplexExplanation(true, score(), "Score based on join value " + termsEnum.term().utf8ToString());
    }

View Full Code Here

      for(int i = 0; i < valSrcWeights.length; i++) {
        valSrcExpls[i] = valSrcWeights[i].explain(info, doc);
      }
      Explanation customExp = CustomScoreQuery.this.getCustomScoreProvider(info).customExplain(doc,subQueryExpl,valSrcExpls);
      float sc = getBoost() * customExp.getValue();
      Explanation res = new ComplexExplanation(
        true, sc, CustomScoreQuery.this.toString() + ", product of:");
      res.addDetail(customExp);
      res.addDetail(new Explanation(getBoost(), "queryBoost")); // actually using the q boost as q weight (== weight value)
      return res;
    }

View Full Code Here

      }
      // match
      Explanation valSrcExpl = valSrcScorer==null ? null : valSrcScorer.explain(doc);
      Explanation customExp = customExplain(doc,subQueryExpl,valSrcExpl);
      float sc = qWeight * customExp.getValue();
      Explanation res = new ComplexExplanation(
        true, sc, CustomScoreQuery.this.toString() + ", product of:");
      res.addDetail(customExp);
      res.addDetail(new Explanation(qWeight, "queryBoost")); // actually using the q boost as q weight (== weight value)
      return res;
    }

View Full Code Here

    public Explanation explain(AtomicReaderContext context, int doc) throws IOException {
      BlockJoinScorer scorer = (BlockJoinScorer) scorer(context, true, false, context.reader().getLiveDocs());
      if (scorer != null && scorer.advance(doc) == doc) {
        return scorer.explain(context.docBase);
      }
      return new ComplexExplanation(false, 0.0f, "Not a match");
    }

View Full Code Here

0 1 2 3 4 5 6

TOP

Related Classes of org.apache.lucene.search.ComplexExplanation

com.greplin.lucene.query.MatchNoDocsQuery$MatchNoDocsWeight

com.senseidb.search.query.MatchNoneDocsQuery$MatchNoneDocsWeight

org.apache.lucene.queries.CustomScoreQuery$CustomWeight

org.apache.lucene.search.function.CustomScoreQuery$CustomScorer

org.apache.lucene.search.function.CustomScoreQuery$CustomWeight

org.apache.lucene.search.function.ValueSourceQuery$ValueSourceScorer

org.apache.lucene.search.join.TermsIncludingScoreQuery

org.apache.lucene.search.join.TermsIncludingScoreQuery$SVInnerScorer

org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer

org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight

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.