google.appengine.api.search.RescoringMatchScorer

Assigns a document score based on term frequency weighted by doc parts.

Inherits From: MatchScorer, expected_type

View aliases

Main aliases

`google.appengine.api.search.search.RescoringMatchScorer`

google.appengine.api.search.RescoringMatchScorer()

If you add a RescoringMatchScorer to a SortOptions as in the following code:

sort_opts = search.SortOptions(match_scorer=search.RescoringMatchScorer())

then, this will sort the documents in descending score order. The scores will be positive. If you want to sort in ascending order, then use the following code:

sort_opts = search.SortOptions(match_scorer=search.RescoringMatchScorer(),
    expressions=[search.SortExpression(
        expression='_score', direction=search.SortExpression.ASCENDING,
        default_value=0.0)])

The scores in this case will be negative.

Raises
TypeError	If any of the parameters has an invalid type, or an unknown attribute is passed.
ValueError	If any of the parameters has an invalid value.