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Tag: query service

How can I get data on all the dams in the world? Use Wikidata

During my first week at Newspeak house while explaining Wikidata and Wikibase to some folks on the terrace the topic of Dams came up while discussing an old project that someone had worked on. Back in the day collecting information about Dams would have been quite an effort, compiling a bunch of different data from different sources to try to get a complete worldwide view on the topic. Perhaps it is easier with Wikidata now?

Below is a very brief walkthrough of topic discovery and exploration using various Wikidata features and the SPARQL query service.

A typical known Dam

In order to get an idea of the data space for the topic within Wikidata I start with a Dam that I know about already, the Three Gorges Dam (Q12514). Using this example I can see how Dams are typically described.

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WBStack Infrastructure

WBStack currently runs on a Google Cloud Kubernetes cluster made up of 2 virtual machines, one e2-medium and one e2-standard-2. This adds up to a current total of 4 vCPUs and 12GB of memory. No Google specific services make up any part of the core platform at this stage meaning WBStack can run wherever there is a Kubernetes cluster with little to no modification.

A simplified overview of the internals can be seen in the diagram below where blue represents the Google provided services, with green representing everything running within the kubernetes cluster.

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WBStack – November review

It’s been roughly 1 month since WBStack appeared online, and it’s time for a quick review of what has been happening in the first month. If you don’t already know what WBStack is, then head to my introduction post.

The number of users and wikis has slowly been increasing. In my last post I stated ” 20 users on the project with 30 Wikibase installs”. 3 weeks after that post WBStack now sits at roughly 38 users with roughly 65 wikibases. Many of these wikibases are primarily users test wikis, but that’s great, the barrier to trying out Wikibase is definitely lowered.

If you would like an invite code to try WBStack, or have any related thoughts of ideas, then please get in touch.

What’s changed

As WBStack is a shared platform, all changes mentioned in this blog post are immediately visible on all hosted Wikibases. In the future there will be various options to turn things on and off, but at this early stage things are being kept simple.

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