ft_lsh_utils

Utility functions for LSH models

Description

Utility functions for LSH models

Usage

ml_approx_nearest_neighbors(
  model,
  dataset,
  key,
  num_nearest_neighbors,
  dist_col = "distCol"
)

ml_approx_similarity_join(
  model,
  dataset_a,
  dataset_b,
  threshold,
  dist_col = "distCol"
)

Arguments

Argument	Description
model	A fitted LSH model, returned by either ft_minhash_lsh()

or ft_bucketed_random_projection_lsh(). dataset | The dataset to search for nearest neighbors of the key. key | Feature vector representing the item to search for. num_nearest_neighbors | The maximum number of nearest neighbors. dist_col | Output column for storing the distance between each result row and the key. dataset_a | One of the datasets to join. dataset_b | Another dataset to join. threshold | The threshold for the distance of row pairs.