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Posted to issues@lucene.apache.org by "Mayya Sharipova (Jira)" <ji...@apache.org> on 2021/08/18 13:54:00 UTC
[jira] [Created] (LUCENE-10054) Handle hierarchy in HNSW graph
Mayya Sharipova created LUCENE-10054:
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Summary: Handle hierarchy in HNSW graph
Key: LUCENE-10054
URL: https://issues.apache.org/jira/browse/LUCENE-10054
Project: Lucene - Core
Issue Type: Task
Reporter: Mayya Sharipova
Currently HNSW graph is represented as a single layer graph.
We would like to extend it to handle hierarchy as per [discussion|https://issues.apache.org/jira/browse/LUCENE-9004?focusedCommentId=17393216&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17393216].
TODO tasks:
- add multiple layers in the HnswGraph class
- modify the format in Lucene90HnswVectorsWriter and Lucene90HnswVectorsReader to handle multiple layers
- modify graph construction and search algorithm to handle hierarchy
- run benchmarks
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