Package org.apache.lucene.search

Examples of org.apache.lucene.search.ComplexExplanation

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    }

    @Override
    public Explanation explain(final IndexReader reader,
                               final int doc) {
      return new ComplexExplanation(false, 0, "MatchNoDocs matches nothing");
    }
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        InputStreamStreamInput esBuffer = new InputStreamStreamInput(esInBuffer);

        Explanation result = Lucene.readExplanation(esBuffer);
        assertThat(exp.toString(),equalTo(result.toString()));

        exp = new ComplexExplanation(true, 2.0f, "some explanation");
        exp.addDetail(new Explanation(2.0f,"another explanation"));

        // write complex
        outBuffer = new ByteArrayOutputStream();
        out = new OutputStreamStreamOutput(outBuffer);
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            return Math.exp(0.5 * Math.pow(value, 2.0) / scale);
        }

        @Override
        public Explanation explainFunction(String valueExpl, double value, double scale) {
            ComplexExplanation ce = new ComplexExplanation();
            ce.setValue((float) evaluate(value, scale));
            ce.setDescription("exp(-0.5*pow(" + valueExpl + ",2.0)/" + -1 * scale + ")");
            return ce;
        }
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            return Math.max(0.0, (scale - value) / scale);
        }

        @Override
        public Explanation explainFunction(String valueExpl, double value, double scale) {
            ComplexExplanation ce = new ComplexExplanation();
            ce.setValue((float) evaluate(value, scale));
            ce.setDescription("max(0.0, ((" + scale + " - " + valueExpl + ")/" + scale + ")");
            return ce;
        }
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            return Math.exp(scale * value);
        }

        @Override
        public Explanation explainFunction(String valueExpl, double value, double scale) {
            ComplexExplanation ce = new ComplexExplanation();
            ce.setValue((float) evaluate(value, scale));
            ce.setDescription("exp(- " + valueExpl + " * " + -1 * scale + ")");
            return ce;
        }
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        protected abstract String getFieldName();

        @Override
        public Explanation explainScore(int docId, float subQueryScore) {
            ComplexExplanation ce = new ComplexExplanation();
            ce.setValue(CombineFunction.toFloat(score(docId, subQueryScore)));
            ce.setMatch(true);
            ce.setDescription("Function for field " + getFieldName() + ":");
            ce.addDetail(func.explainFunction(getDistanceString(docId), distance(docId), scale));
            return ce;
        }
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            if (scorer != null) {
              int newDoc = scorer.advance(doc);
              if (newDoc == doc) {
                float freq = scorer.sloppyFreq();
                SimScorer docScorer = similarity.simScorer(stats, context);
                ComplexExplanation inner = new ComplexExplanation();
                inner.setDescription("weight("+getQuery()+" in "+doc+") [" + similarity.getClass().getSimpleName() + "], result of:");
                Explanation scoreExplanation = docScorer.explain(doc, new Explanation(freq, "phraseFreq=" + freq));
                inner.addDetail(scoreExplanation);
                inner.setValue(scoreExplanation.getValue());
                inner.setMatch(true);
                ComplexExplanation result = new ComplexExplanation();
                result.addDetail(inner);
                Explanation payloadBoost = new Explanation();
                result.addDetail(payloadBoost);
                final float payloadScore = scorer.getPayloadScore();
                payloadBoost.setValue(payloadScore);
                // GSI: I suppose we could toString the payload, but I don't think that
                // would be a good idea
                payloadBoost.setDescription("allPayload(...)");
                result.setValue(inner.getValue() * payloadScore);
                result.setDescription("btq, product of:");
                return result;
              }
            }
           
            return new ComplexExplanation(false, 0.0f, "no matching term");
           
           
        }
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    @Override
    public Explanation explainScore(int docId, float score) {
        Explanation functionScoreExplanation;
        Explanation functionExplanation = scoreFunction.explainScore(docId, score);
        functionScoreExplanation = new ComplexExplanation(true, functionExplanation.getValue() * (float) getWeight(), "product of:");
        functionScoreExplanation.addDetail(functionExplanation);
        functionScoreExplanation.addDetail(explainWeight());
        return functionScoreExplanation;
    }
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      for(int i = 0; i < valSrcWeights.length; i++) {
        valSrcExpls[i] = valSrcWeights[i].explain(reader, doc);
      }
      Explanation customExp = CustomScoreQuery.this.getCustomScoreProvider(reader).customExplain(doc,subQueryExpl,valSrcExpls);
      float sc = getValue() * customExp.getValue();
      Explanation res = new ComplexExplanation(
        true, sc, CustomScoreQuery.this.toString() + ", product of:");
      res.addDetail(customExp);
      res.addDetail(new Explanation(getValue(), "queryBoost")); // actually using the q boost as q weight (== weight value)
      return res;
    }
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        return function.docScore(doc, term.field(), payloadsSeen, payloadScore);
      }

      @Override
      protected Explanation explain(final int doc) throws IOException {
        ComplexExplanation result = new ComplexExplanation();
        Explanation nonPayloadExpl = super.explain(doc);
        result.addDetail(nonPayloadExpl);
        // QUESTION: Is there a way to avoid this skipTo call? We need to know
        // whether to load the payload or not
        Explanation payloadBoost = new Explanation();
        result.addDetail(payloadBoost);

        float payloadScore = getPayloadScore();
        payloadBoost.setValue(payloadScore);
        // GSI: I suppose we could toString the payload, but I don't think that
        // would be a good idea
        payloadBoost.setDescription("scorePayload(...)");
        result.setValue(nonPayloadExpl.getValue() * payloadScore);
        result.setDescription("btq, product of:");
        result.setMatch(nonPayloadExpl.getValue() == 0 ? Boolean.FALSE
            : Boolean.TRUE); // LUCENE-1303
        return result;
      }
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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
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