Settings

The settings page allows you to configure various aspects of the application, available from the settings icon in the side bar:

Settings

Here you can access to the settings menu, where you can change the following settings (some of them are available only for admin users):

Settings Menu

  • Main Settings: here you can change the main settings of the application:
    • Theme: choose between light and dark mode
    • Query Interface: choose between the default query interface and the advanced query interface
    • Entity Rendering: in the whole application you will see the entities rendered with prefixed IRIs, or labels if they are available, or full IRIs. If the rendering is not available, you will see the full IRI.
    • Label Language: choose the language of the label that will be rendered. It has effect only if the rendering is set to label, otherwise it will be ignored.
    • Search Functions: choose how the instances are searched in the VKG interface.
    • Popover Axioms: enable or disable the popover axioms in the ontologies browse section. If enabled when you select an entity in the cards shown on the right you will see a popover with the axioms related to that entity.
    • Query Tags: manage the tags that can be used to tag SPARQL queries. The tags are used to organize queries and can be cutom. There is one default tag “dataquality” that is used to tag the queries related to data quality.
    • Global Annotations: manage the annotations suggested in the mapping form. New annotations will be added from the latter form automatically when a new annotation is mapped, but you can also add new annotations from this section.
    • Geo Servers: manage geo servers used in the VKG interface for visualizing the geospatial data.
  • User: here you can change the user settings, such as the username and the password.
  • JDBC Drivers: here you can manage the JDBC drivers used to connect to external databases. You can add new drivers by providing a default URL and the class name of the driver (these are the ones available in the Mastro classpath).
  • Scheduler: here you can start the scheduler, which is used to schedule the execution of SPARQL queries. You can also see the scheduled queries and their status.
  • Publication Requests: here you can see the publication requests of queries made by the users and approve or reject them. A publication request is made when a user wants to publish a query in the queries panels and it needs to be approved by an admin user before being published.
  • Default Mastro Properties: here you can consult the default Mastro Properties used when an Endpoint is started, they are very technical configurations. These properties can be overridden when starting an Endpoint, but here you can see the default values and change them if needed.
  • Mastro Home: here you can see the Mastro Home directory, which is the directory where Mastro is installed. This is useful to know when you want to see how big is the the Mastro files managed in the backend. Here you can also delete temporary files generated by Mastro, which are not automatically deleted and can take up a lot of space over time.
  • CSV: here you can delete the CSV files uploaded in the KG section which in case of errors are not deleted automatically
  • Statistics:
    • Main Statistics: here you can see the main statistics sucha as number of accesses by user and ontology usage. Yu can also delete the all the statistics.
    • Endpoint Statistics: here you can see the statistics of the endpoints, such as the number of queries executed and the entities involved in the queries. You can also delete the statistics of an endpoint.
  • Feedback: here you can see the feedbacks sent by the users and delete them if needed.
  • Logs: here you can see the logs of the application, which are useful for debugging and monitoring the application.
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