Stream a directed exact kNN graph into destination big.matrix objects

Stream a directed exact kNN graph into destination big.matrix objects

Usage

knn_graph_stream_bigmatrix(
  x,
  k,
  xpFrom,
  xpTo,
  xpValue = NULL,
  metric = "euclidean",
  plan = NULL,
  block_size = knn_default_block_size(),
  include_distance = TRUE,
  checkpoint_path = NULL
)

Arguments

x: A bigmemory::big.matrix or prepared reference with a stored descriptor.
k: Number of neighbours per row.
xpFrom: Writable single-column bigmemory::big.matrix receiving source vertex ids.
xpTo: Writable single-column bigmemory::big.matrix receiving target vertex ids.
xpValue: Optional writable single-column bigmemory::big.matrix receiving distances or unit weights.
metric: Distance metric. Supported values are "euclidean", "sqeuclidean", and "cosine".
plan: Optional execution plan returned by knn_plan_bigmatrix().
block_size: Number of rows to process per query and reference block.
include_distance: Logical flag controlling whether xpValue stores distances or unit weights.
checkpoint_path: Optional path for a resumable job checkpoint.

Value

An object of class "bigknn_job".