Hybrid search RRF ranking (Reciprocal Rank Fusion) is the first choice for both Weaviate and Vespa.

(And they are also the two OSS vector search databases supporting aggregation, which make them to my opinion the best contenders for e-commerce vector search)

Vespa presentation:

SeMI Technologies Weaviate presentation: https://weaviate.io/blog/2023/01/Hybrid-Search-Explained.html

WPSOLR for WooCommerce with Weaviate: https://www.wpsolr.com/

#wpsolr #woocommerce #hybridsearch #vectorsearch #vespasearch #weaviate