Advanced Search

Advanced search (SPARQL)

For advanced searching, we provide a specialised search tool designed to craft very specific search queries. you find specific details about people stored in large online information collections. You don't need any technical background to use it.

Here’s how you generally work with it:

  1. Choose Your Subject: When you visit the advanced search page, you'll first need to tell it what kind of information you're looking for. Find an option to select the main subject – in this case, choose "Person"
  2. Narrow Down to Who You're Looking For: Next, you add details to narrow down your search. The website will provide easy-to-use menus, buttons, or boxes where you can specify things like:
    • Their activity or profession (e.g., select "Writer", "Engineer")
    • Their name (or part of it)
    • Their birth information
  3. After adding your advanced criteria, hit the play button: It will then display a table showing the people who match the description you provided.

sparna1.png

After executing the query, the table below now contains a name of the person (left column) and a link to the record (right column) for the results that match the advanced query you’ve built.

It is also possible to combine multiple of these queries, to further narrow down your results. This is done by hovering under the first row of the query and clicking the and/et bubble:

sparna2.png

Linked Data and SPARQL

Experienced users who need even more precise control over their data retrieval can directly access and query the LUDAP using SPARQL. SPARQL is a powerful query language specifically designed for performing advanced queries on linked data.

SPARQL allows you to formulate highly specific queries that go beyond the capabilities of simpler search interfaces. You can define intricate patterns, combine information from different aspects of an individual's record, and perform sophisticated filtering and data manipulation.

Go to our web interface for our SPARQL endpoint, click the "Toggle SPARQL query" button to start editing, or use your own tools and send your queries to our endpoint directly.

Learning SPARQL

If you are interested in leveraging the full power of SPARQL, numerous resources are available to help you learn: