Alan Woodward created LUCENE-8630:
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Summary: Allow boosting of particular interval sources
Key: LUCENE-8630
URL: https://issues.apache.org/jira/browse/LUCENE-8630
Project: Lucene - Core
Issue Type: Task
Reporter: Alan Woodward
Assignee: Alan Woodward
Attachments: LUCENE-8630.patch
In positional queries, it's common to want to promote some terms over others;
for example, in lists of synonyms you may want the original term to be weighted
more, or more specific terms to receive higher weights than less specific ones.
Span queries have the 'SpanBoostQuery', which is currently broken; and a
'PayloadScoreQuery' which allows direct modification of the score based on
stored payloads, but which does not deal well with a mix of terms
with-and-without payloads, and which ends up exposing a lot of the terms API,
making it very difficult to customize.
For interval queries, I'd like to try a different approach, adding a
float-valued 'boost()' method to IntervalIterator. This would make it easy to
add simple boosts around particular terms in terms lists, and also allow more
fine-grained control using payloads without having to expose the mechanics of
the PostingsEnum
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