AI search webinar on retrieval and reranking set for October 13

The New Stack lists an October 13, 2026 webinar with Vespa.ai’s Bonnie Chase and Jenny Morris on designing AI search retrieval as a multi-stage funnel. Its premise is that a reranker cannot recover a relevant result left out of the initial candidate set. The session is set to cover lexical, vector and hybrid retrieval, and when more expensive ranking models add value.