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POLucene boosting / scoring with multiple columns
 

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    <p>How would I take the following data and be able to get the results below?</p> <p>Ive included a code sample but I cant seem to figure out how to properly search through multiple columns and apply the boost I need.</p> <p>Am I going about this the right way?</p> <h3>Boost / Weight for each column</h3> <pre><code>First Name = 100 Last Name = 75 Bio = 50 </code></pre> <h3>Data</h3> First Name, Last Name, Bio <pre><code>Benny, Benson, This is a test - "ben" appears in the first name AND last name - Score = 175 Jim, Smith, Another test with the word ben - "ben" appears in the bio - Score = 50 John, Benson, And another test here - "ben" appears in the last name - Score = 75 </code></pre> <h3>Results</h3> <pre><code>1. Benny 2. John 3. Jim protected override void _addToLuceneIndex(dynamic item, IndexWriter writer) { var user = item as UserTestItem; if (user == null) return; // remove older index entry var searchQuery = new TermQuery(new Term(USER_ID, user.UserID.ToString(CultureInfo.InvariantCulture))); writer.DeleteDocuments(searchQuery); // add new index entry var doc = new Document(); // get fields var userId = new Field(USER_ID, user.UserID.ToString(CultureInfo.InvariantCulture), Field.Store.YES, Field.Index.NOT_ANALYZED); var firstName = new Field(FIRST_NAME, user.FirstName ?? string.Empty, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.YES); var lastName = new Field(LAST_NAME, user.LastName ?? string.Empty, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.YES); var bio = new Field(BIO, user.Bio ?? string.Empty, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.YES); // add boosts firstName.Boost = 100f; lastName.Boost = 75f; bio.Boost = 50f; // add lucene fields mapped to db fields doc.Add(userId); doc.Add(firstName); doc.Add(lastName); doc.Add(bio); // add entry to index writer.AddDocument(doc); } public string[] FieldsToSearch { get; set; } // i.e. "FirstName", "LastName", "Bio" public UserSearchResults SearchUsers(string searchQuery, bool exact = false) { var results = new UserSearchResults(); if (!string.IsNullOrEmpty(searchQuery)) { //searchQuery = PrepareInput(searchQuery, exact); try { using (var searcher = new IndexSearcher(IndexDirectory, false)) { var analyzer = new StandardAnalyzer(LUCENE_VERSION); // Search by multiple fields (ordered by RELEVANCE) var parser = new MultiFieldQueryParser(LUCENE_VERSION, FieldsToSearch, analyzer); parser.AllowLeadingWildcard = true; parser.DefaultOperator = exact ? QueryParser.AND_OPERATOR : QueryParser.OR_OPERATOR; var multiFieldQuery = ParseQuery(searchQuery, parser); var hits = searcher.Search(multiFieldQuery, null, SearchResultLimit, Sort.RELEVANCE); var docs = hits.ScoreDocs; results.Items = _mapLuceneToDataList(docs, searcher).Cast&lt;UserTestItem&gt;().ToList(); results.Total = results.Items.Count; results.RawQuery = LastUsedQuery.ToString(); analyzer.Close(); searcher.Dispose(); } } catch (Exception ex) { Debug.WriteLine(ex.ToString()); } } return results; } </code></pre>
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    1. COIs there some particular problem you are seeing with what you have already done?
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    2. COSpecify your question, please
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      1. USMysterion
 

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