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https://issues.apache.org/jira/browse/LUCENE-9855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17311991#comment-17311991
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Tomoko Uchida commented on LUCENE-9855:
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bq. if we want to emphasize the graph nature here, maybe HnswFormat?

I didn't think that but it might accurately reflect our current progress...? 
Anyway the only algorithm we support on 9.0.0 is HNSW, can we delay the effort 
for making decision to give proper names for ANN search until another algorithm 
(that may be clustering based one?) is added.

> Reconsider codec name VectorFormat
> ----------------------------------
>
>                 Key: LUCENE-9855
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9855
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/codecs
>    Affects Versions: main (9.0)
>            Reporter: Tomoko Uchida
>            Priority: Blocker
>
> There is some discussion about the codec name for ann search.
> https://lists.apache.org/thread.html/r3a6fa29810a1e85779de72562169e72d927d5a5dd2f9ea97705b8b2e%40%3Cdev.lucene.apache.org%3E
> Main points here are 1) use plural form for consistency, and 2) use more 
> specific name for ann search (second point could be optional).
> A few alternatives were proposed:
> - VectorsFormat
> - VectorValuesFormat
> - NeighborsFormat
> - DenseVectorsFormat



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