gaoj0017 commented on PR #14078: URL: https://github.com/apache/lucene/pull/14078#issuecomment-2562753433
@benwtrent Thanks for your reply. First, in the blog - [Better Binary Quantization at Elastic and Lucene](https://www.elastic.co/search-labs/blog/better-binary-quantization-lucene-elasticsearch) - the BBQ method is a variant of our RaBitQ with no major differences. The claimed major features of BBQ all originate from our RaBitQ paper (as we have explained in our last reply). There is only one attribution to our method, where it is mentioned (in one sentence) that BBQ is based on some inspirations from RaBitQ. We think this attribution is not sufficient - it should be made clear that the mentioned features of BBQ all originate from RaBitQ. Second, for the new method described in this pull request, there is no attribution to our extended RaBitQ method at all - we note that we shared with your team the extended RaBitQ paper more than 2 months ago. To our understanding, the method is highly similar to our extended RaBitQ at its core (which also supports quantizing a vector to 1-bit, 2-bit, ... per dimension). They share the major idea of optimizing the scalar quantization method by trying different parameters. In your new blog, it is mentioned that “Although the RaBitQ approach is conceptually rather different to scalar quantization, we were inspired to re-evaluate whether similar performance could be unlocked for scalar quantization.” This is not true since our extended RaBitQ corresponds to an optimized scalar quantization method. Given that our extended RaBitQ method is a prior art of the method introduced in the blog and our method was known to your team more than 2 months ago, you should not have ignored it. Discussions on the differences between two methods if any should be clearly explained and experiments of comparing the two methods should be provided as well. -- 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
