Experimental hierarchical retrieval over a two-level tree of leaf vectors and k-means cluster summaries. It includes exhaustive, IVF-style, and coherence-weighted search variants.
cargo test -p ruvector-cluster-rag
cargo run --release -p ruvector-cluster-rag --bin benchmarkClustered variants are approximate. Tune the cluster count, probe count, and coherence weight against workload-specific recall and latency targets.