Hello Michael, we don't yet have an example of kNN with filtering in the demo package. This would be nice to add!
For now maybe looking at the unit tests could give a sense of how to use it. Here's an example: https://github.com/apache/lucene/blob/main/lucene/core/src/test/org/apache/lucene/search/TestKnnVectorQuery.java#L115-L127. The idea is that KnnVectorQuery optionally accepts a Query as a filter, and returns the k nearest vectors that also match the filter. Many people refer to this as "kNN with prefiltering" (as opposed to "postfiltering", where the filter is applied *after* the kNN search, so in the end you may receive fewer than k matches). Let us know if you run into any questions/ issues while trying it out! Julie On Mon, May 9, 2022 at 8:08 AM Michael Wechner <michael.wech...@wyona.com> wrote: > sorry for the URLs below. > > I have tested Twilio SendGrid as outgoing server and it just rewrote the > URLs > > > https://issues.apache.org/jira/browse/SOLR-15947 > https://issues.apache.org/jira/browse/LUCENE-10382 > > and > > > https://lucene.apache.org/core/9_1_0/demo/org/apache/lucene/demo/knn/package-summary.html > > which I was not aware of, but disabled the tracking now and hope it will > be ok now. > > Thanks > > Michael > > Am 09.05.22 um 15:12 schrieb Michael Wechner: > > Hi > > > > I noticed that Lucene 9.1.0 supports filtering in nearest-neighbor > > vector search, which is great :-) > > > > I have found > > > > > http://url7093.wyona.com/ls/click?upn=JOH5Fjdv9AA9sbvUyiP84WWONyl36e4Tdd3VZFG-2B7pcYPJTPhVT3xqtcUDjPgQX5jI0WYWlJZX8h9NDC6okDRg-3D-3DHvvY_UMWFA-2BOn91WS4mEQPCWI9gZNzEZlJPmWPGP2CeMD7g4c-2Fpo3g6VPyd4ghH4X9o8sJ-2Bl292KOe2-2F30WmSZB1KHnF6KpgvICPKY8k5m30V-2FWrDvoSQLIaimtz2YHrzSMNV98es7-2BeXQS174-2B0EHPnQVtOYqUPojoZgGkqmovRXrz1dJlfs9dtFDGqSjpYaFiMaVBoiDTrpJ-2FUkuanwcx6R8UgvxBCq08DUa7vhRJqir7M-3D > > > > > http://url7093.wyona.com/ls/click?upn=JOH5Fjdv9AA9sbvUyiP84WWONyl36e4Tdd3VZFG-2B7pe76-2Fa6XWGARorEmYO8A-2BeVhPN2B1iPvCEp9XG8WpVE6w-3D-3DHR5k_UMWFA-2BOn91WS4mEQPCWI9gZNzEZlJPmWPGP2CeMD7g4c-2Fpo3g6VPyd4ghH4X9o8sJ-2Bl292KOe2-2F30WmSZB1KHiGuZh3RFDkfg6-2FfNpOG8Tly-2FHwK25rp-2F24-2BPYZV6e5mGIWVQ5bpJ0l9u4lRzO6rySncTjxQZEPOjzZIrDMh-2Fo17VBGBagQ0Gr6G-2BAySO2ZdtDBthWjE-2F7HwxioFG9XrEUBVS79a0mcaaPKM-2BdzT9Cc-3D > > > > > > and > > > > > http://url7093.wyona.com/ls/click?upn=JOH5Fjdv9AA9sbvUyiP84Rv2gN4NEUQqv-2Fn4lbJOY6mZGeN60klU5tyssLGPfHHB3IBl2Fx9C7un4UF2pBgYYcEd15H8F-2FPYEn4LTL-2Bz8fMFeo4z-2BjB3yMGv345VDdnStdESYCXN-2FD-2BQOSZSTNQLbQ-3D-3D9uTB_UMWFA-2BOn91WS4mEQPCWI9gZNzEZlJPmWPGP2CeMD7g4c-2Fpo3g6VPyd4ghH4X9o8sJ-2Bl292KOe2-2F30WmSZB1KHkzFWMImz7LKaiDu0g-2BZTsPclbKiyBoQiJHrZiOk5CuKsixeOFVVfvwAjyEhV-2F5McxrC76Q-2F72ILNowoPMFyMwXdaUF-2FhFh6HF0aWgai16l9zSdZIETAq46vRruPFO9ZqlRY6XiSu-2FBiKe4r5xiM0vA-3D > > > > > > but it is not really clear to me how to use it. > > > > Is there some additional documentation / example / demo how I can > > combine filtering with vector search? > > > > Thanks > > > > Michael > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
