06_​Semantic_​Web

This directory contains 12 workflows.

Icon01_​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 […]

Icon02_​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 […]

Icon03_​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 […]

Icon04_​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.

Icon05_​SPARQL_​Queries_​and_​named_​graphs 

This workflow demonstrates how to insert semantic web triples to named graphs and shows the result from possible queries.

Icon06_​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 […]

Icon07_​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.

Icon08_​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 […]

Icon09_​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 […]

Icon10_​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 […]