I think I am convinced that Lucene works well for embeddings + retrieval tasks from this preprint. I hope the paper provides direct comparison against Pinecone,

I think I am convinced that Lucene works well for embeddings + retrieval tasks from this preprint. I hope the paper provides direct comparison against Pinecone, Chroma, etc.. With enough budget you can probably do a user study too. Finer points: 1. I remember FAISS is very accelerated for GPUs. How does Lucene compare there? 2. "we’re not convinced that enterprises will make the (single, large) leap from an existing solution to a fully managed service" --> Fair point but not everyone uses Lucene? I feel it is weird that this "existing solution" (Lucene) is assumed to be already adopted.