Пример #1
0
		public override Explanation Explain(IndexReader reader, int doc)
		{
			
			ComplexExplanation result = new ComplexExplanation();
			result.Description = "weight(" + Query + " in " + doc + "), product of:";
			System.String field = ((SpanQuery) Query).Field;
			
			Explanation idfExpl = new Explanation(idf, "idf(" + field + ": " + idfExp.Explain() + ")");
			
			// explain query weight
			Explanation queryExpl = new Explanation();
			queryExpl.Description = "queryWeight(" + Query + "), product of:";
			
			Explanation boostExpl = new Explanation(Query.Boost, "boost");
			if (Query.Boost != 1.0f)
				queryExpl.AddDetail(boostExpl);
			queryExpl.AddDetail(idfExpl);
			
			Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
			queryExpl.AddDetail(queryNormExpl);
			
			queryExpl.Value = boostExpl.Value * idfExpl.Value * queryNormExpl.Value;
			
			result.AddDetail(queryExpl);
			
			// explain field weight
			ComplexExplanation fieldExpl = new ComplexExplanation();
			fieldExpl.Description = "fieldWeight(" + field + ":" + internalQuery.ToString(field) + " in " + doc + "), product of:";
			
			Explanation tfExpl = ((SpanScorer)Scorer(reader, true, false)).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]):1.0f;
			fieldNormExpl.Value = fieldNorm;
			fieldNormExpl.Description = "fieldNorm(field=" + field + ", doc=" + doc + ")";
			fieldExpl.AddDetail(fieldNormExpl);
			
			fieldExpl.Match = tfExpl.IsMatch;
			fieldExpl.Value = tfExpl.Value * idfExpl.Value * fieldNormExpl.Value;
			
			result.AddDetail(fieldExpl);
			System.Boolean? tempAux = fieldExpl.Match;
			result.Match = tempAux;
			
			// combine them
			result.Value = queryExpl.Value * fieldExpl.Value;
			
			if (queryExpl.Value == 1.0f)
				return fieldExpl;
			
			return result;
		}
Пример #2
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			/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.explain(Lucene.Net.Index.IndexReader, int) */
			public override Explanation Explain(IndexReader reader, int doc)
			{
			    DocValues vals = enclosingInstance.valSrc.GetValues(reader);
			    float sc = queryWeight*vals.FloatVal(doc);

                Explanation result = new ComplexExplanation(true, sc, enclosingInstance.ToString() + ", product of:")
			    ;
                result.AddDetail(vals.Explain(doc));
			    result.AddDetail(new Explanation(enclosingInstance.Boost, "boost"));
			    result.AddDetail(new Explanation(queryNorm, "queryNorm"));
			    return result;
			}
Пример #3
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            public override Explanation Explain(AtomicReaderContext context, int doc)
            {
                PayloadTermSpanScorer scorer = (PayloadTermSpanScorer)Scorer(context, (context.AtomicReader).LiveDocs);
                if (scorer != null)
                {
                    int newDoc = scorer.Advance(doc);
                    if (newDoc == doc)
                    {
                        float freq = scorer.SloppyFreq();
                        Similarity.SimScorer docScorer = Similarity.DoSimScorer(Stats, context);
                        Explanation expl = new Explanation();
                        expl.Description = "weight(" + Query + " in " + doc + ") [" + Similarity.GetType().Name + "], result of:";
                        Explanation scoreExplanation = docScorer.Explain(doc, new Explanation(freq, "phraseFreq=" + freq));
                        expl.AddDetail(scoreExplanation);
                        expl.Value = scoreExplanation.Value;
                        // now the payloads part
                        // QUESTION: Is there a way to avoid this skipTo call? We need to know
                        // whether to load the payload or not
                        // GSI: I suppose we could toString the payload, but I don't think that
                        // would be a good idea
                        string field = ((SpanQuery)Query).Field;
                        Explanation payloadExpl = OuterInstance.Function.Explain(doc, field, scorer.PayloadsSeen, scorer.PayloadScore_Renamed);
                        payloadExpl.Value = scorer.PayloadScore;
                        // combined
                        ComplexExplanation result = new ComplexExplanation();
                        if (OuterInstance.IncludeSpanScore)
                        {
                            result.AddDetail(expl);
                            result.AddDetail(payloadExpl);
                            result.Value = expl.Value * payloadExpl.Value;
                            result.Description = "btq, product of:";
                        }
                        else
                        {
                            result.AddDetail(payloadExpl);
                            result.Value = payloadExpl.Value;
                            result.Description = "btq(includeSpanScore=false), result of:";
                        }
                        result.Match = true; // LUCENE-1303
                        return result;
                    }
                }

                return new ComplexExplanation(false, 0.0f, "no matching term");
            }
Пример #4
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        public override Explanation Explain(IndexReader reader, int doc)
        {
            ComplexExplanation result = new ComplexExplanation();

            result.SetDescription("weight(" + GetQuery() + " in " + doc + "), product of:");
            System.String field = ((SpanQuery)GetQuery()).GetField();

            Explanation idfExpl = new Explanation(idf, "idf(" + field + ": " + idfExp.Explain() + ")");

            // 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, true, false).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]) : 1.0f;

            fieldNormExpl.SetValue(fieldNorm);
            fieldNormExpl.SetDescription("fieldNorm(field=" + field + ", doc=" + doc + ")");
            fieldExpl.AddDetail(fieldNormExpl);

            fieldExpl.SetMatch(tfExpl.IsMatch());
            fieldExpl.SetValue(tfExpl.GetValue() * idfExpl.GetValue() * fieldNormExpl.GetValue());

            result.AddDetail(fieldExpl);
            System.Boolean?tempAux = fieldExpl.GetMatch();
            result.SetMatch(tempAux);

            // combine them
            result.SetValue(queryExpl.GetValue() * fieldExpl.GetValue());

            if (queryExpl.GetValue() == 1.0f)
            {
                return(fieldExpl);
            }

            return(result);
        }
Пример #5
0
				protected internal override Explanation Explain(int doc)
				{
					ComplexExplanation result = new ComplexExplanation();
					Explanation nonPayloadExpl = base.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.Value = payloadScore;
					// GSI: I suppose we could toString the payload, but I don't think that
					// would be a good idea
					payloadBoost.Description = "scorePayload(...)";
					result.Value = nonPayloadExpl.Value * payloadScore;
					result.Description = "btq, product of:";
					result.Match = nonPayloadExpl.Value == 0?false:true; // LUCENE-1303
					return result;
				}
Пример #6
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        public override Explanation Explain(IndexReader reader, int doc, IState state)
        {
            ComplexExplanation result = new ComplexExplanation();

            result.Description = "weight(" + Query + " in " + doc + "), product of:";
            System.String field = ((SpanQuery)Query).Field;

            Explanation idfExpl = new Explanation(idf, "idf(" + field + ": " + idfExp.Explain() + ")");

            // explain query weight
            Explanation queryExpl = new Explanation();

            queryExpl.Description = "queryWeight(" + Query + "), product of:";

            Explanation boostExpl = new Explanation(Query.Boost, "boost");

            if (Query.Boost != 1.0f)
            {
                queryExpl.AddDetail(boostExpl);
            }
            queryExpl.AddDetail(idfExpl);

            Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");

            queryExpl.AddDetail(queryNormExpl);

            queryExpl.Value = boostExpl.Value * idfExpl.Value * queryNormExpl.Value;

            result.AddDetail(queryExpl);

            // explain field weight
            ComplexExplanation fieldExpl = new ComplexExplanation();

            fieldExpl.Description = "fieldWeight(" + field + ":" + internalQuery.ToString(field) + " in " + doc + "), product of:";

            Explanation tfExpl = ((SpanScorer)Scorer(reader, true, false, state)).Explain(doc, state);

            fieldExpl.AddDetail(tfExpl);
            fieldExpl.AddDetail(idfExpl);

            Explanation fieldNormExpl = new Explanation();

            byte[] fieldNorms = reader.Norms(field, state);
            float  fieldNorm  = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;

            fieldNormExpl.Value       = fieldNorm;
            fieldNormExpl.Description = "fieldNorm(field=" + field + ", doc=" + doc + ")";
            fieldExpl.AddDetail(fieldNormExpl);

            fieldExpl.Match = tfExpl.IsMatch;
            fieldExpl.Value = tfExpl.Value * idfExpl.Value * fieldNormExpl.Value;

            result.AddDetail(fieldExpl);
            System.Boolean?tempAux = fieldExpl.Match;
            result.Match = tempAux;

            // combine them
            result.Value = queryExpl.Value * fieldExpl.Value;

            if (queryExpl.Value == 1.0f)
            {
                return(fieldExpl);
            }

            return(result);
        }
Пример #7
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            public override Explanation Explain(AtomicReaderContext context, int doc)
            {
                int minShouldMatch         = outerInstance.MinimumNumberShouldMatch;
                ComplexExplanation sumExpl = new ComplexExplanation();

                sumExpl.Description = "sum of:";
                int   coord            = 0;
                float sum              = 0.0f;
                bool  fail             = false;
                int   shouldMatchCount = 0;

                using (IEnumerator <BooleanClause> cIter = outerInstance.clauses.GetEnumerator())
                {
                    foreach (Weight w in m_weights)
                    {
                        cIter.MoveNext();
                        BooleanClause c = cIter.Current;
                        if (w.GetScorer(context, context.AtomicReader.LiveDocs) == null)
                        {
                            if (c.IsRequired)
                            {
                                fail = true;
                                Explanation r = new Explanation(0.0f, "no match on required clause (" + c.Query.ToString() + ")");
                                sumExpl.AddDetail(r);
                            }
                            continue;
                        }
                        Explanation e = w.Explain(context, doc);
                        if (e.IsMatch)
                        {
                            if (!c.IsProhibited)
                            {
                                sumExpl.AddDetail(e);
                                sum += e.Value;
                                coord++;
                            }
                            else
                            {
                                Explanation r = new Explanation(0.0f, "match on prohibited clause (" + c.Query.ToString() + ")");
                                r.AddDetail(e);
                                sumExpl.AddDetail(r);
                                fail = true;
                            }
                            if (c.Occur == Occur_e.SHOULD)
                            {
                                shouldMatchCount++;
                            }
                        }
                        else if (c.IsRequired)
                        {
                            Explanation r = new Explanation(0.0f, "no match on required clause (" + c.Query.ToString() + ")");
                            r.AddDetail(e);
                            sumExpl.AddDetail(r);
                            fail = true;
                        }
                    }
                }
                if (fail)
                {
                    sumExpl.Match       = false;
                    sumExpl.Value       = 0.0f;
                    sumExpl.Description = "Failure to meet condition(s) of required/prohibited clause(s)";
                    return(sumExpl);
                }
                else if (shouldMatchCount < minShouldMatch)
                {
                    sumExpl.Match       = false;
                    sumExpl.Value       = 0.0f;
                    sumExpl.Description = "Failure to match minimum number " + "of optional clauses: " + minShouldMatch;
                    return(sumExpl);
                }

                sumExpl.Match = 0 < coord ? true : false;
                sumExpl.Value = sum;

                float coordFactor = disableCoord ? 1.0f : Coord(coord, m_maxCoord);

                if (coordFactor == 1.0f)
                {
                    return(sumExpl); // eliminate wrapper
                }
                else
                {
                    ComplexExplanation result = new ComplexExplanation(sumExpl.IsMatch, sum * coordFactor, "product of:");
                    result.AddDetail(sumExpl);
                    result.AddDetail(new Explanation(coordFactor, "coord(" + coord + "/" + m_maxCoord + ")"));
                    return(result);
                }
            }
Пример #8
0
            public override Explanation Explain(AtomicReaderContext context, int doc)
            {
                PayloadNearSpanScorer scorer = (PayloadNearSpanScorer)Scorer(context, (context.AtomicReader).LiveDocs);
                if (scorer != null)
                {
                    int newDoc = scorer.Advance(doc);
                    if (newDoc == doc)
                    {
                        float freq = scorer.Freq();
                        Similarity.SimScorer docScorer = Similarity.DoSimScorer(Stats, context);
                        Explanation expl = new Explanation();
                        expl.Description = "weight(" + Query + " in " + doc + ") [" + Similarity.GetType().Name + "], result of:";
                        Explanation scoreExplanation = docScorer.Explain(doc, new Explanation(freq, "phraseFreq=" + freq));
                        expl.AddDetail(scoreExplanation);
                        expl.Value = scoreExplanation.Value;
                        string field = ((SpanQuery)Query).Field;
                        // now the payloads part
                        Explanation payloadExpl = OuterInstance.Function.Explain(doc, field, scorer.PayloadsSeen, scorer.PayloadScore);
                        // combined
                        ComplexExplanation result = new ComplexExplanation();
                        result.AddDetail(expl);
                        result.AddDetail(payloadExpl);
                        result.Value = expl.Value * payloadExpl.Value;
                        result.Description = "PayloadNearQuery, product of:";
                        return result;
                    }
                }

                return new ComplexExplanation(false, 0.0f, "no matching term");
            }
Пример #9
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        public virtual Explanation Explain(IndexReader reader, int doc)
        {
            ComplexExplanation result = new ComplexExplanation();

            result.SetDescription("weight(" + GetQuery() + " in " + doc + "), product of:");
            System.String field = ((SpanQuery)GetQuery()).GetField();

            System.Text.StringBuilder      docFreqs = new System.Text.StringBuilder();
            System.Collections.IEnumerator i        = terms.GetEnumerator();
            while (i.MoveNext())
            {
                System.Collections.DictionaryEntry tmp = (System.Collections.DictionaryEntry)i.Current;
                Term term = (Term)tmp.Key;
                docFreqs.Append(term.Text());
                docFreqs.Append("=");
                docFreqs.Append(reader.DocFreq(term));

                if (i.MoveNext())
                {
                    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(tfExpl.IsMatch());
            fieldExpl.SetValue(tfExpl.GetValue() * idfExpl.GetValue() * fieldNormExpl.GetValue());

            result.AddDetail(fieldExpl);
            System.Boolean tempAux = fieldExpl.GetMatch();
            result.SetMatch(tempAux);

            // combine them
            result.SetValue(queryExpl.GetValue() * fieldExpl.GetValue());

            if (queryExpl.GetValue() == 1.0f)
            {
                return(fieldExpl);
            }

            return(result);
        }
Пример #10
0
			private Explanation DoExplain(IndexReader reader, int doc)
			{
				Explanation subQueryExpl = subQueryWeight.Explain(reader, doc);
				if (!subQueryExpl.IsMatch)
				{
					return subQueryExpl;
				}
				// match
				Explanation[] valSrcExpls = new Explanation[valSrcWeights.Length];
                for (int i = 0; i < valSrcWeights.Length; i++)
				{
                    valSrcExpls[i] = valSrcWeights[i].Explain(reader, doc);
				}
                Explanation customExp = Enclosing_Instance.GetCustomScoreProvider(reader).CustomExplain(doc, subQueryExpl, valSrcExpls);
				float sc = Value * customExp.Value;
				Explanation res = new ComplexExplanation(true, sc, Enclosing_Instance.ToString() + ", product of:");
				res.AddDetail(customExp);
				res.AddDetail(new Explanation(Value, "queryBoost")); // actually using the q boost as q weight (== weight value)
				return res;
			}