RandomWalkSample Syntax Elements

RandomWalkSample Syntax Elements - Teradata Vantage

Machine Learning Engine Analytic Function Reference

Product

Teradata Vantage

Release Number

9.02

9.01

2.0

1.3

Published

February 2022

Language

English (United States)

Last Update

2022-02-10

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B700-4003

lifecycle

Product Category

Teradata Vantage™

VertexOutputTable: Specify the name of the vertex output table.
EdgeOutputTable: Specify the name of the edge output table.
TargetKey: Specify the names of the columns in the Edges table that identify the target vertex of an edge. This set of columns must have the same schema as the sets vertex_key_column [,...] and source_vertex_key_column [,...].
SampleRate: [Optional] Specify the sampling rate. This value must be in the range (0, 1.0).; Default: 0.15 (15%)
FlyBackRate: [Optional] Specify the chance, when visiting a vertex, of flying back to the starting vertex. This value must be in the range (0, 1.0).; Default: 0.15 (15%)
Seed: [Optional] Specify the random seed the algorithm uses for repeatable results. The algorithm uses the seed to create a series of random numbers, including sample_rate and flyback_rate. The seed must be a LONG value.
For repeatable results, use both the Seed and UniqueID syntax elements. For more information, see Nondeterministic Results and UniqueID Syntax Element.; Default: 1000
Accumulate: [Optional] Specify the names of columns in the input vertex table (vertices) to copy to the output vertex table (vertex_table).