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https://issues.apache.org/jira/browse/LUCENE-8630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16736936#comment-16736936
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Alan Woodward commented on LUCENE-8630:
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Interval scoring currently uses the same implementation as SpanScorer, and
MultiPhraseScorer, but I agree that it would be good to separate things out a
bit. This paper suggests combining the BM25 score and a proximity score by
summing them, and has some ideas for calculating proximities:
http://www.bigdatalab.ac.cn/~gjf/papers/2012/Exploring%20and%20Exploiting%20Proximity%20Statistic%20for%20Information%20Retrieval%20Model.pdf
> 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
> Priority: Major
> 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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