SEM_RDFCTX.SET_EXTRACTOR

Format

SEM_RDFCTX.SET_EXTRACTOR_PARAM(
     param_key     IN VARCHAR2, 
     patam_value   IN VARCHAR2, 
     param_desc    IN VARCHAR2,
     network_owner IN VARCHAR2 DEFAULT NULL,
     network_name  IN VARCHAR2 DEFAULT NULL);

Description

Configures the Oracle Database semantic indexing support to work with external information extractors, such as Calais and GATE.

Parameters

param_key: Key for the parameter to be set.
param_value: Value for the parameter to be set.
param_desc: Short description for the parameter to be set.
network_owner: Owner of the semantic network. (See Table 1-2.)
network_name: Name of the semantic network. (See Table 1-2.)

Usage Notes

To use this procedure, you must be connected as SYSTEM (not SYS … AS SYSDBA) or another non-SYS user with the DBA role.

To work with the Calais extractor type (see Configuring the Calais Extractor type), you must specify values for the following parameters:

CALAIS_WS_ENDPOINT: Web service end point for Calais.
CALAIS_KEY: License key for Calais.
CALAIS_WS_SOAPACTION: SOAP action for the Calais Web service.

To work with the General Architecture for Text Engineering (GATE) extractor type (see Working with General Architecture for Text Engineering (GATE)), you must specify values for the following parameters:

GATE_NLP_HOST: Host for the GATE NLP Listener.
GATE_NLP_PORT: Port for the GATE NLP Listener.

In addition to these parameters, you may need to specify a value for the HTTP_PROXY parameter to work with information extractors or index documents that are outside the firewall.

A database instance only has one set of values for these parameters, and they are used for all instances of semantic indexes using the corresponding information extractor. You can use this procedure if you need to change the existing values of any of the parameters.

For information about semantic network types and options, see RDF Networks.

Examples

For examples, see the following sections: