Hi Markus, Tetra* will be parsed as a PrefixQuery, which returns a constant score by default. You can enable scoring by calling MultiTermQuery.setRewriteMethod(SCORING_BOOLEAN_REWRITE) on it[1]. However, this will have the downside that not all possible terms matching this prefix will be considered.
If you want to build a suggester, you could also have a look at the lucene/suggest module. [1] https://lucene.apache.org/core/5_2_0/core/org/apache/lucene/search/MultiTermQuery.html#SCORING_BOOLEAN_REWRITE On Wed, Jul 1, 2015 at 11:18 PM, Markus Hegi - Nagavkar <markush...@gmail.com> wrote: > Thanks Adrien for the quick response - that's a good hint - > > I simplified my code and realized, that the sorting DOES work, if I use > full words. With "*", index boosting is not taken into account - see below > my code, I used the two queries for testing: > > "Tetrachloroethane" - scoring works fine > "Tetra*" - here, I get all the same scores. > > I am building an auto-suggest, based on ontology terms. Scoring is crucial > there, and also, that I find parts of words. > > Markus > > Simplified test code: > > public void simple(String inp) throws IOException > { > try > { > FSDirectory dir = > FSDirectory.open(FileSystems.getDefault().getPath(Co.folder()+"SEARCH\\ontoTest\\")); > analyzer = new EnglishAnalyzer(); > IndexWriterConfig config = new > IndexWriterConfig(analyzer).setOpenMode(OpenMode.CREATE); > IndexWriter writer = new IndexWriter(dir, config); > > index(writer, "4", "1,1,2,2-Tetrachloroethane", 1); > index(writer, "5", "Tetrachloroethane", 1); > index(writer, "6", "Tetrachloroethane", 10); > index(writer, "7", "Tetrachloroethane", 0.1f); > writer.close(); > > QueryParser parser; Query query; > parser=new QueryParser("TERM", analyzer); > query = parser.parse(inp); > IndexReader reader = DirectoryReader.open(dir); > IndexSearcher searcher = new IndexSearcher(reader); > ScoreDoc[] hits = searcher.search(query, 100).scoreDocs; > out("found: "+hits.length+" results!"); > for(int i=0; i<hits.length; i++) > { > ScoreDoc sd=hits[i]; > if(sd==null) continue; > int docId = sd.doc; > Document d = searcher.doc(docId); > if(d==null) continue; > out("<br>id: "+d.get("ID")+" - score: "+sd.score+" - "+d.get("TERM")); > } > } > catch(Exception e) { > e.printStackTrace(); > } > } > public void index(IndexWriter writer, String id, String str, float boost) > throws IOException > { > Document doc=new Document(); > > FieldType ft=new FieldType(); > ft.setIndexOptions(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS); > ft.setStored(true); > ft.setTokenized(true); > Field f=new Field("TERM", str, ft); > f.setBoost(boost); > doc.add(f); > > writer.updateDocument(new Term("ID", id), doc); > } > > > > > On Wed, Jul 1, 2015 at 9:57 PM, Adrien Grand <jpou...@gmail.com> wrote: > >> What query did you run? Not all queries take index-time boosts into >> account for scoring. >> >> On Wed, Jul 1, 2015 at 7:30 PM, Markus Hegi - Nagavkar >> <markush...@gmail.com> wrote: >> > Hello >> > >> > Downloaded & imported latest 5.2.1 version, but Index-scoring seems not >> to >> > work for me: >> > >> > I index two types of documents: >> > - For one, I boost every field with a factor 1 >> > - For the other one, I boost every field with 0.01 >> > >> > When I search, I get documents of both types, but for ALL document an >> > identical score of: >> > 1.4142135 >> > >> > What could be the problem? >> > Some of my code: >> > ... >> > FieldType ft=new FieldType(); >> > ft.setIndexOptions(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS); >> > ft.setStored(true); >> > ft.setTokenized(true); >> > >> > Field f=new Field(name, value, ft); >> > f.setBoost(0.001f); >> > doc.add(f); >> > ... >> > >> > Markus >> >> >> >> -- >> Adrien >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> -- Adrien --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
