06_Semantic_Web
This directory contains 12 workflows.
01_Read_and_write_triples_from_and_to_file
This workflow demonstrates how to write triples to files either directly from the Endpoint or from Table. Files can be written either directly from a […]
02_SPARQL_SELECT_Query_from_different_endpoints
The workflow demonstates how to perform a SELECT query on different endpoints. This can either be a Virtuoso Endpoint, a different SPARQL Endpoint or an […]
03_SPARQL_INSERT_Query_from_table
This workflow demonstrates how to insert triples from a table to an In-Memory Endpoint using the SPARQL Insert node. Additionally a SPARQL Query has been […]
04_SPARQL_INSERT_from_file
This workflow demonstrates how to insert Semantic Web triples to an endpoint directly from a file using the SPARQL File Inserter node.
05_SPARQL_Queries_and_named_graphs
This workflow demonstrates how to insert semantic web triples to named graphs and shows the result from possible queries.
06_SPARQL_UPDATE_Query
This workflow demonstrates how to update triples stored in an endpoint. Please pay attention to the update rules described in the SPARQL Update node […]
07_SPARQL_DELETE_Query
This workflow demonstrates how to Update triples stored in an endpoint. Pay attention to the update rules described in the SPARQL Delete node description.
08_SPARQL_Executor
This workflow demonstrates how to use the SPARQL Executor node. The Exector node allows to perform custom update SPARQL queries. The two examples […]
09_Doing_a_large_Query_on_a_public_endpoint
Public endpoints often have a limited return (say 10000 triples) to overcome this and do larger queries one can work with OFFSET if necessary. This can be […]
10_Using_Semantic_Web_to_generate_Simpsons_TagCloud
This workflow demonstrates a possible use of the semantic web plugin nodes. We query dbpedia to retrieve all the chalkboard gags from the intros of the […]