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Full-text search: Adjust indexing weights and scores

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gnosygnu
2017-03-16 17:02:19 -04:00
parent 8524120a14
commit 6ccee10526
3 changed files with 39 additions and 15 deletions
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20
gplx.gflucene/src/gplx/gflucene/searchers/Gflucene_searcher_mgr.java
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@@ -24,7 +24,13 @@ import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.queries.CustomScoreQuery;
import org.apache.lucene.queries.function.FunctionQuery;
import org.apache.lucene.queries.function.valuesource.LongFieldSource;
import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
@@ -56,9 +62,15 @@ public class Gflucene_searcher_mgr {
try {
IndexReader reader = DirectoryReader.open(index);
IndexSearcher searcher = new IndexSearcher(reader);
Query query = new QueryParser("body", analyzer).parse(data.query);
// Query multi_query = MultiFieldQueryParser.parse(data.query, new String[] {"body"}, new BooleanClause.Occur []{BooleanClause.Occur.SHOULD}, analyzer);
// Query body_query = new QueryParser("body", analyzer).parse(data.query);
// Query title_query = new QueryParser("title", analyzer).parse(data.query);
// FunctionQuery boost_query = new FunctionQuery(new LongFieldSource("page_score"));
// CustomScoreQuery query = new CustomScoreQuery(multi_query, boost_query);
// TopDocs docs = searcher.search(query, reader.maxDoc());
TopDocs docs = searcher.search(query, data.match_max);
ScoreDoc[] hits = docs.scoreDocs;
@@ -66,8 +78,10 @@ public class Gflucene_searcher_mgr {
for(int i = 0; i < hits.length; i++) {
int docId = hits[i].doc;
Document d = searcher.doc(docId);
Gflucene_doc_data doc = new Gflucene_doc_data(Integer.parseInt(d.get("page_id")), Integer.parseInt(d.get("page_score")), d.get("title"), "");
// Gflucene_doc_data doc = new Gflucene_doc_data(Integer.parseInt(d.get("page_id")), Integer.parseInt(d.get("page_score")), d.get("title"), "");
Gflucene_doc_data doc = new Gflucene_doc_data(Integer.parseInt(d.get("page_id")), 0, d.get("title"), "");
doc.lucene_score = hits[i].score;
// Tfds.Write(doc.lucene_score, doc.title);
list.Add(doc);
}