hi,
The match scorer does relevance scoring based on term frequency. You can
configure it as a sort option:
QueryOptions.newBuilder()
.setSortOptions(SortOptions.newBuilder()
.setMatchScorer(MatchScorer.newBuilder()))
...
.build();
then access the scores in the query results:
for (ScoredDocument scoredDoc : results) {
out.println("Score: " + scoredDoc.getSortScores().get(**0));
}
If you access _score in a sort expression, e.g (suppose you have a field
called 'price'):
SortExpression sortExpr = SortExpression.newBuilder()
.setExpression("price + _score")
.setDefaultValueNumeric(0.0)
.build();
then your SortOptions object should include a scorer. e.g.:
SortOptions.newBuilder()
.setMatchScorer(MatchScorer.newBuilder())
.addSortExpression(sortExpr)
...
.build();
You might find the examples in this set of slides useful:
http://fts-webinar.appspot.com/ . Both python and java examples are
included.
On 12 September 2012 12:42, jon <[email protected]> wrote:
> I'm afraid my original question is still unanswered. I still don't know
> how to grab relevance score. I have a feeling that there's no Googler
> that's been assigned to look after FTS questions in this group :-(
>
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