Hi Michael, I'll let others closer to the ongoing vectors developments answer with more technical detail, but one high level answer:
The new ANN/kNN feature is not yet released! It will be in Lucene 9.0.0, when that is released (maybe soonish -- there is a running thread about remaining 9.0 blockers <https://markmail.org/thread/sga3dzbymnn5qdx4>). This is a major new feature, requiring a new Codec component, and will not be backported to Lucene 8.x. Also, we already benchmark indexing/searching of vectors every night in Lucene's nightly benchmarks <https://home.apache.org/~mikemccand/lucenebench/> (hmm, they haven't run for the past few nights ... I'll try to fix). Mike McCandless http://blog.mikemccandless.com On Sun, May 23, 2021 at 7:39 AM Michael Wechner <michael.wech...@wyona.com> wrote: > Hi > > If I understand correctly the source version of Lucene contains an HNSW > implementation for k-nn search > > https://issues.apache.org/jira/browse/LUCENE-9004 > > and another algorithm based on coarse quantization is in development > > https://issues.apache.org/jira/browse/LUCENE-9322 > > Also there are various efforts to benchmark the Lucene HNSW > implementation according to https://github.com/erikbern/ann-benchmarks > > https://www.mail-archive.com/issues@lucene.apache.org/msg42711.html > https://github.com/jtibshirani/lucene/pull/1 > > and > > https://github.com/alexklibisz/ann-benchmarks-lucene > > But what is not so clear to me is what is the current status of these > developments and what are the next steps planned? > > Thanks > > Michael > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: dev-h...@lucene.apache.org > >
