Semantic_Data_Management_Project

Requirements

• Java 11
• GraphDB

Create turtle file

There are multiple functoins in the Main.java file. Most of them are commented and usefull only for development porpouses. The function that is by default not commented is the one used to export the graph into a Turtle file.

To run this project, clone it, compile the Maven Project and run the Main.java file. This will create a turtle file containing the triplets to build the graph.

Populate the data base

To upload the graph into graphDB:

• at the opening window, open settings and allow imports for more than 200 MB to setting graphdb.workbench.maxUploadSize = 40000000000
• in graphDB create a repository and import the turtle file.

Query the graph

An example of a query on the data is provided by query_radiators_from_USA.txt. This will return all the items classifed as RADIADORES from the country UNITED STATES. Similar queries can be easily build on the top of this one.