Similarity Search

This node takes each row in the query table (Port 0) and searches the reference table (Port 1) for a number of rows matching the specified similarity/distance criteria. If multiple results are requested, the query result row is duplicated for each subsequent match.

Input ports

1. Type: Table
   Query table
   Each row is used as a query for similar (or non-similar) entries in the reference table.
2. Type: Table
   Reference table (neighbors)
   Data set to in which to search for nearest/farthest neighbors.
3. Type: Distance Measure
   Distance Measure
   Optional distance measure, which replaces the distance configuration.

Output ports

1. Type: Table
   Input 1 + columns/rows with neighbor information
   The input data set with three additional columns for (i) neighbor index (ii) neighbor (the row id or some other representative column) and (iii) the distance/similarity value. The 2nd, 3rd, ... next neighbors are represented by additional rows.