Hi Lin, I guess you are looking at document boosting, if 'm right, you could conditionally do this: doc.setBoost(boostFactor); where boostFactor is a float > 1.0 that boosts the doc with the boost factor. Also, you could also use field.setBoost (boostValue) to boost a particular field in a document by a particular boostfactor. By default all boosts are set to 1.0 in lucene. The field.setBoost would multiply the score of all matching docs by this factor while calculating relevance.
Hope this solves your issue. -- Anshum Gupta Naukri Labs! http://ai-cafe.blogspot.com The facts expressed here belong to everybody, the opinions to me. The distinction is yours to draw............ On Tue, Nov 18, 2008 at 11:07 PM, T. H. Lin <[EMAIL PROTECTED]> wrote: > I would like to store a set of keywords in a single field of a document. > > for example I have now three keywords: "One", "Two" and "Three" > and I am going to add them into a document. > > At first, is this code correct? > /****************************************************************/ > String[] keyword = new String[]{"One", "Two", "Three"}; > for (int i = 0; i < keyword.length; i++) { > Field f = new Field("field_name", > keyword[i], > Field.Store.NO, > Field.Index.UN_TOKENIZED, > TermVector.YES); > doc.add(f); > } > indexWriter.addDocument(doc); > /***************************************************************/ > > when searching, We can set Boost for a query term. > > the question is... > Can I set Boost for every keyword/term while indexing? > > from the example above. I may set those keywords. i.e. "One", "Two" and > "Three", with different "Weight/Boost/Relavance..." while indexing. > and the same "term" may have different "Weight/Boost/Relavance..." in > different document. > > can I do this? > > thanks. :-) >
