8.3.1 Loading a Graph

The following describes the steps for loading a graph:

1. Create a Session and an Analyst.
   • JShell
   • Java
   • Python

   cd /opt/oracle/graph/
   ./bin/opg4j
   // starting the shell will create an implicit session and analyst
   opg4j> import oracle.pgx.config.mllib.ActivationFunction
   opg4j> import oracle.pgx.config.mllib.WeightInitScheme
   opg4j> PgxSession session = Pgx.createSession("my-session")
   opg4j> Analyst analyst = session.createAnalyst()

   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();

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

2. Load the graph.
   • JShell
   • Java
   • Python

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

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

   graph = session.read_graph_with_properties("<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.