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Mar 8, 2024 · This guide will teach you how to use it. See also the interactive tutorial by Wikimedia Israel . Before writing your own SPARQL query, look at {{ Item documentation }} or any other generic SPARQL query template and see if your query is already included. Contents. 1 Before we start. 2 SPARQL basics. 3 Our first query. 3.1 Autocompletion.
- A Gentle Introduction to The Wikidata Query Service
- Breaking Down The Query
- Text to SPARQL Walkthrough
- Diving Into The User Interface
Have you ever wondered about questions like these? 1. What are the largest cities in the world that have a female mayor? 2. What airports are located within 100km of Berlin? 3. Who were all known descendants of Genghis Khan? Wikidata has the answers.
Now let’s analyse the code to generalise this so we can search for any single object (for example, dogs, planets, countries, songs): 1. SELECT A query SELECTs something. What exactly you want to select and display is described later, but for the time being you just state the placeholders (or variables). Here they are called ?item and ?itemLabel. Yo...
The animations below show how to write triplets in natural language, and convert them into SPARQL queries. The key is to prefix variables with ?, items with wd: and properties with wdt:,and then using the Ctrl+Space (or Ctrl+Alt+Space or Alt+Enter) keyboard shortcut to activate the auto-completion feature that replaces the latter two with the actua...
How to change the language that the results are displayed in?
With this search query tool, you can not only customise and search for simple or aggregated, compound, nested and complex queries but you can also search in ANY language and get results in ANY language too. 1. Change the default language code from “en” (English) to any other language code, say “ja” for Japanese.
How to change the sorting order of the results displayed?
The order of the items displayed can be easily changed in the interface. Just click on the relevant columns of the search results to customise the sorting order:
How to change the language of the UI?
Click the word English and select the language from the list displayed: Notice the UI has changed to the selected language:
Speaker: Robert Fernandez Moderators: Anne Chen, Christine Fernsebner Eslao Wikidata Tutorial: Intro to the Basics will provide a hands-on introduction to Wikidata and the Wikidata Query...
- 94 min
- 2.4K
- LD4
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Wikidata Tutorial: Intro to the Basics will provide a hands-on introduction to Wikidata and the Wikidata Query Tool. In this interactive workshop, participants will learn the basic...
- 36 min
- 2.9K
- LD4
( Video tutorial 1) ( Video tutorial 2 ). ( Exemplar sheet ). The syntax you need is explained in QuickStatements v.1 and you can use the Wikidata plug-in for Google Sheets to make wrangling the data in Google Sheets easier. 3. Bot editing (making edits over the API) e.g. ProteinBoxBot. See the Bots request section of the Data Import Guide.
What is Wikidata? Wikidata is an open knowledge base of structured linked data and a sister project of Wikipedia. It was launched in 2012, and like Wikipedia, it is a free and collaborative site that welcomes contributors from around the world.
