benwtrent commented on issue #13403: URL: https://github.com/apache/lucene/issues/13403#issuecomment-2123458172
Is PCA ever preferred for vector information retrieval over Product Quantization? I would expect the first stab at dimension reduction would be PQ not PCA. Maybe a first step for PQ would be a format that allows statically setting the code books and applying them at index & search time? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
