For Nils Reimers (father of sentence transformers https://www.sbert.net/) the road is long: reranking, long texts, temporality (trends?), signals like popularity or recency, or even a new kind of LLMs are hot research and development topics!!!
Me who was afraid to have gone around the subject. I’ll have to postpone my “Definitive AI retrieval encyclopedia” publication 😅
See it with your own eyes at wpsolr.com: WooCommerce + Weaviate + Cohere embeddings + Cohere reranking