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; }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { return new MatchAllScorer(enclosingInstance, reader, similarity, this, Enclosing_Instance.normsField != null?reader.Norms(Enclosing_Instance.normsField):null); }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { return new SpanScorer(internalQuery.GetSpans(reader), this, similarity, reader.Norms(internalQuery.Field)); }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { if (Enclosing_Instance.termArrays.Count == 0) // optimize zero-term case return null; TermPositions[] tps = new TermPositions[Enclosing_Instance.termArrays.Count]; for (int i = 0; i < tps.Length; i++) { Term[] terms = Enclosing_Instance.termArrays[i]; TermPositions p; if (terms.Length > 1) p = new MultipleTermPositions(reader, terms); else p = reader.TermPositions(terms[0]); if (p == null) return null; tps[i] = p; } if (Enclosing_Instance.slop == 0) return new ExactPhraseScorer(this, tps, Enclosing_Instance.GetPositions(), similarity, reader.Norms(Enclosing_Instance.field)); else return new SloppyPhraseScorer(this, tps, Enclosing_Instance.GetPositions(), similarity, Enclosing_Instance.slop, reader.Norms(Enclosing_Instance.field)); }
public override Explanation Explain(IndexReader reader, int doc) { ComplexExplanation result = new ComplexExplanation(); result.Description = "weight(" + Query + " in " + doc + "), product of:"; Explanation idfExpl = new Explanation(idf, "idf(" + Query + ")"); // explain query weight Explanation queryExpl = new Explanation(); queryExpl.Description = "queryWeight(" + Query + "), product of:"; Explanation boostExpl = new Explanation(Enclosing_Instance.Boost, "boost"); if (Enclosing_Instance.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(" + Query + " in " + doc + "), product of:"; PhraseScorer scorer = (PhraseScorer)Scorer(reader, true, false); if (scorer == null) { return new Explanation(0.0f, "no matching docs"); } Explanation tfExplanation = new Explanation(); int d = scorer.Advance(doc); float phraseFreq = (d == doc) ? scorer.CurrentFreq() : 0.0f; tfExplanation.Value = similarity.Tf(phraseFreq); tfExplanation.Description = "tf(phraseFreq=" + phraseFreq + ")"; fieldExpl.AddDetail(tfExplanation); fieldExpl.AddDetail(idfExpl); Explanation fieldNormExpl = new Explanation(); byte[] fieldNorms = reader.Norms(Enclosing_Instance.field); float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]):1.0f; fieldNormExpl.Value = fieldNorm; fieldNormExpl.Description = "fieldNorm(field=" + Enclosing_Instance.field + ", doc=" + doc + ")"; fieldExpl.AddDetail(fieldNormExpl); fieldExpl.Match = tfExplanation.IsMatch; fieldExpl.Value = tfExplanation.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; }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { return new PayloadNearSpanScorer(enclosingInstance, internalQuery.GetSpans(reader), this, similarity, reader.Norms(internalQuery.Field)); }
public override Explanation Explain(IndexReader reader, int doc) { Explanation result = new Explanation(); result.Description = "weight(" + Query + " in " + doc + "), product of:"; System.Text.StringBuilder docFreqs = new System.Text.StringBuilder(); System.Text.StringBuilder query = new System.Text.StringBuilder(); query.Append('\"'); docFreqs.Append(idfExp.Explain()); for (int i = 0; i < Enclosing_Instance.terms.Count; i++) { if (i != 0) { query.Append(" "); } Term term = Enclosing_Instance.terms[i]; query.Append(term.Text); } query.Append('\"'); Explanation idfExpl = new Explanation(idf, "idf(" + Enclosing_Instance.field + ":" + docFreqs + ")"); // explain query weight Explanation queryExpl = new Explanation(); queryExpl.Description = "queryWeight(" + Query + "), product of:"; Explanation boostExpl = new Explanation(Enclosing_Instance.Boost, "boost"); if (Enclosing_Instance.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 Explanation fieldExpl = new Explanation(); fieldExpl.Description = "fieldWeight(" + Enclosing_Instance.field + ":" + query + " in " + doc + "), product of:"; PhraseScorer scorer = (PhraseScorer)Scorer(reader, true, false); if (scorer == null) { return new Explanation(0.0f, "no matching docs"); } Explanation tfExplanation = new Explanation(); int d = scorer.Advance(doc); float phraseFreq = (d == doc) ? scorer.CurrentFreq() : 0.0f; tfExplanation.Value = similarity.Tf(phraseFreq); tfExplanation.Description = "tf(phraseFreq=" + phraseFreq + ")"; fieldExpl.AddDetail(tfExplanation); fieldExpl.AddDetail(idfExpl); Explanation fieldNormExpl = new Explanation(); byte[] fieldNorms = reader.Norms(Enclosing_Instance.field); float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]):1.0f; fieldNormExpl.Value = fieldNorm; fieldNormExpl.Description = "fieldNorm(field=" + Enclosing_Instance.field + ", doc=" + doc + ")"; fieldExpl.AddDetail(fieldNormExpl); fieldExpl.Value = tfExplanation.Value * idfExpl.Value * fieldNormExpl.Value; result.AddDetail(fieldExpl); // combine them result.Value = queryExpl.Value * fieldExpl.Value; if (queryExpl.Value == 1.0f) return fieldExpl; return result; }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { if (Enclosing_Instance.terms.Count == 0) // optimize zero-term case return null; TermPositions[] tps = new TermPositions[Enclosing_Instance.terms.Count]; for (int i = 0; i < Enclosing_Instance.terms.Count; i++) { TermPositions p = reader.TermPositions(Enclosing_Instance.terms[i]); if (p == null) return null; tps[i] = p; } if (Enclosing_Instance.slop == 0) // optimize exact case return new ExactPhraseScorer(this, tps, Enclosing_Instance.GetPositions(), similarity, reader.Norms(Enclosing_Instance.field)); else return new SloppyPhraseScorer(this, tps, Enclosing_Instance.GetPositions(), similarity, Enclosing_Instance.slop, reader.Norms(Enclosing_Instance.field)); }
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer) { TermDocs termDocs = reader.TermDocs(Enclosing_Instance.term); if (termDocs == null) return null; return new TermScorer(this, termDocs, similarity, reader.Norms(Enclosing_Instance.term.Field)); }
public override Explanation Explain(IndexReader reader, int doc) { ComplexExplanation result = new ComplexExplanation(); result.Description = "weight(" + Query + " in " + doc + "), product of:"; Explanation expl = new Explanation(idf, idfExp.Explain()); // explain query weight Explanation queryExpl = new Explanation(); queryExpl.Description = "queryWeight(" + Query + "), product of:"; Explanation boostExpl = new Explanation(Enclosing_Instance.Boost, "boost"); if (Enclosing_Instance.Boost != 1.0f) queryExpl.AddDetail(boostExpl); queryExpl.AddDetail(expl); Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm"); queryExpl.AddDetail(queryNormExpl); queryExpl.Value = boostExpl.Value * expl.Value * queryNormExpl.Value; result.AddDetail(queryExpl); // explain field weight System.String field = Enclosing_Instance.term.Field; ComplexExplanation fieldExpl = new ComplexExplanation(); fieldExpl.Description = "fieldWeight(" + Enclosing_Instance.term + " in " + doc + "), product of:"; Explanation tfExplanation = new Explanation(); int tf = 0; TermDocs termDocs = reader.TermDocs(enclosingInstance.term); if (termDocs != null) { try { if (termDocs.SkipTo(doc) && termDocs.Doc == doc) { tf = termDocs.Freq; } } finally { termDocs.Close(); } tfExplanation.Value = similarity.Tf(tf); tfExplanation.Description = "tf(termFreq(" + enclosingInstance.term + ")=" + tf + ")"; } else { tfExplanation.Value = 0.0f; tfExplanation.Description = "no matching term"; } fieldExpl.AddDetail(tfExplanation); fieldExpl.AddDetail(expl); 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 = tfExplanation.IsMatch; fieldExpl.Value = tfExplanation.Value * expl.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; }