8.3.1 Loading a Graph

The following describes the steps for loading a graph:

1. Create a Session and an Analyst.
   Creating a Session and an Analyst Using JShell

   
   cd /opt/oracle/graph/
   ./bin/opg4j
   // starting the shell will create an implicit session and analyst
   

   Creating a Session and an Analyst Using Java

   import oracle.pgx.api.*;
   import oracle.pgx.api.mllib.UnsupervisedGraphWiseModel;
   import oracle.pgx.api.frames.*;
   import oracle.pgx.config.mllib.ActivationFunction;
   import oracle.pgx.config.mllib.GraphWiseConvLayerConfig;
   import oracle.pgx.config.mllib.UnsupervisedGraphWiseModelConfig;
   import oracle.pgx.config.mllib.WeightInitScheme;
   
   PgxSession session = Pgx.createSession("my-session");
   Analyst analyst = session.createAnalyst();

   Creating a Session and an Analyst Using Python

   session = pypgx.get_session()
   analyst = session.analyst

2. Load the graph.
   Loading a graph using JShell

   opg4j> var graph = session.readGraphWithProperties("<path/to/graph_config.json>");
   

   Loading a graph using Java

   PgxGraph graph = session.readGraphWithProperties("<path/to/graph_config.json>");
   

   Loading a graph using Python

   graph = session.readGraphWithProperties("<path/to/graph_config.json>")

   You do not need to use a test graph or test vertices, since the model is trained to be unsupervised.