Wikidata query service updater evolution
The Wikidata Query Service (WDQS) sits in front of Wikidata and provides access to query its data via a SPARQL API. The query service itself is built on top of Blazegraph, but in many regards is very similar to any other triple store that provides a SPARQL API. In the early days of the query…
WikiCrowd at 50k answers
In January 2022 I published a new Wikimedia tool called WikiCrowd. This tool allows people to answer simple questions to contribute edits to Wikimedia projects such as Wikimedia Commons and Wikidata. It’s designed to be able to deal with a wide variety of questions, but due to time constraints, the extent of the current questions…
Wikidata maxlag, via the ApiMaxLagInfo hook
Wikidata tinkers with the concept of maxlag that has existed in MediaWiki for some years in order to slow automated editing at times of lag in various systems. Here you will find a little introduction to MediaWiki maxlag, and the ways that Wikidata hooks into the value, altering it for its needs. As you can…
Wikibase a history
I have had the pleasure of being part of the Wikibase journey one way or another since 2013 when I first joined Wikimedia Germany to work on Wikidata. That long-running relation to the project should put me in a fairly good position to give a high-level overview of the history, from both a technical and…
Profiling a Wikibase item creation on test.wikidata.org
Today I was in a Wikibase Stakeholder group call, and one of the discussions was around Wikibase importing speed, data loading, and the APIs. My previous blog post covering what happens when you make a new Wikibase item was raised, and we also got onto the topic of profiling. So here comes another post looking…