EXPERIMENTAL file-backed Leiden refinement stage — massive_leiden_refine

Refines one Louvain local-move partition using Leiden's constrained singleton-merge rule. Graph edges are streamed in bounded blocks and labels and refinement state are memory-mapped. This is one stage; use massive_leiden() for the multilevel fit. Mapped pages can contribute to process RSS.

Usage

massive_leiden_refine_level(
  graph,
  parent,
  output,
  resolution = 1,
  seed = 1L,
  chunk_rows = 8192L,
  memory_limit = "1GB",
  backend = "cpu"
)

Arguments

graph: A result of massive_umap_fuzzy_graph().
parent: A first-level massive_louvain_level() result for graph.
output: New path for one-based uint32 refined labels.
resolution: Positive modularity resolution.
seed: Nonnegative refinement seed.
chunk_rows: Maximum consecutive CSR rows per scan block.
memory_limit: RAM budget for graph scan buffers.
backend: Only "cpu" is implemented; no fallback is used.

Value

A file-backed refinement and refined-to-parent label map.