You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Erick Erickson (JIRA)" <ji...@apache.org> on 2013/04/13 23:18:15 UTC
[jira] [Resolved] (LUCENE-533) SpanQuery scoring: SpanWeight lacks
a recursive traversal of the query tree
[ https://issues.apache.org/jira/browse/LUCENE-533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erick Erickson resolved LUCENE-533.
-----------------------------------
Resolution: Fixed
SPRING_CLEANING_2013 JIRAS. Spans is an abstract class, suspect this is already done.
> SpanQuery scoring: SpanWeight lacks a recursive traversal of the query tree
> ---------------------------------------------------------------------------
>
> Key: LUCENE-533
> URL: https://issues.apache.org/jira/browse/LUCENE-533
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 1.9
> Reporter: Vincent Le Maout
> Priority: Minor
>
> I found the computing of weights to be somewhat different according to the query type (BooleanQuery versus SpanQuery) :
> org.apache.lucene.search.BooleanQuery.BooleanWeight :
> public BooleanWeight(Searcher searcher)
> throws IOException {
> this.similarity = getSimilarity(searcher);
> for (int i = 0 ; i < clauses.size(); i++) {
> BooleanClause c = (BooleanClause)clauses.elementAt(i);
> weights.add(c.getQuery().createWeight(searcher));
> }
> }
> which looks like a recursive descent through the tree, taking into account the weights of all the nodes, whereas :
> org.apache.lucene.search.spans.SpanWeight :
> public SpanWeight(SpanQuery query, Searcher searcher)
> throws IOException {
> this.similarity = query.getSimilarity(searcher);
> this.query = query;
> this.terms = query.getTerms();
> idf = this.query.getSimilarity(searcher).idf(terms, searcher);
> }
> lacks any traversal and according to what I have understood so far from the rest
> of the code, only takes into account the boost of the tree root in SumOfSquareWeights(),
> which is consistent with the resulting scores not considering the boost of the tree
> leaves.
> vintz
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org