[P] Epsilla: Another open source vector database

Hi everyone!

I'm excited to share Epsilla, an open-source vector database!

Under the hood, we implemented the state-of-art ANN index algorithm from the academia (SpeedANN) that leverages intra-query parallel graph traversal, which outperforms HNSW by 5x on high precision query latency on medium size (1M) vector space and outperforms HNSW by 50 times on large-scale vector search.

In addition, we also made a few design choices on our database interface and architecture based on our previous database experience at TigerGraph, …

academia algorithm ann art database graph hnsw index latency machinelearning medium open source precision query space state vector vector database