Open your structured data with Wikibase install your own instance - PowerPoint PPT Presentation

Open your structured data with Wikibase — install your own instance of the technology behind Wikidata Jens Ohlig <jens.ohlig@wikimedia.de>

Wikidata: the basics ● A knowledge base Part of the Wikimedia projects ● ● Structured data ● Linked to other databases ● Multilingual Collaborative ● ● Released under public domain (CC0) ● Based on facts and references ● Made for humans and machines

A few numbers ● launched 29. October, 2012 ● currently more than 56 Mio. data items ● over 20.000 active users (with more than 1 edit per month) ● The most edited Wikimedia project

Over 56 million data items

Goals of Wikidata ● Give more people more access to more knowledge ● A free and open knowledge base that can be read and edited by both humans and machines ● To provide support inside and outside the Wikimedia projects ● To provide a freely usable repository and a hub for linked open data

Structure of the data

Let’s have a look! ● Go to http://wikidata.org ● Search for the item “Berlin” and look at the results

Demo: editing an item ● Sandbox: https://www.wikidata.org/wiki/Q4115189 ● Edit a label ● Edit an existing statement ● Add a new value ● Add a new statement ● Add a reference

Build your own instance!

● Functionality to create and manage a knowledge base, including user-defined properties ● A rich JavaScript-based user interface to easily access and update your data ● A data model that takes knowledge diversity and So, what is multilingual usage seriously ● Exports of the data in a number of formats like JSON, RDF/XML, N3, and YAML ● Query and display data with SPARQL Wikibase?

Order things in the world. Make them readable and queryable for machines. Link between things and Or, to put it concepts. Build the Semantic Web. Do it the simple Wiki Way.

Wikibase ● We want more installations outside the Wikiverse ● Not all data is in scope of the Wikidata project. How about a domain-specific repository?

Why would you want a Wikibase instance?

The case of the world’s greatest library of jams and marmelades Liesbeth Lass (https://commons.wikimedia.org/wiki/File:Aprikosenkonfitüre.jpg), „Aprikosenkonfitüre“, https://creativecommons.org/licenses/by-sa/3.0/de/legalcode

But seriously.

FactGrid Project What is it? Why is it cool? Dr. Olaf Simons works as a historian at the University of Erfurt’s Gotha Research Centre. He is the initiator of FactGrid, a database for historians. Currently, FactGrid structures documents around the historical Order of the Illuminati. Blog

Rhizome What is it? Why is it cool? Rhizome, an arts organization in New York City, was one of the early adopters of Wikibase, having been using it since 2015 for its archive of born-digital art and digital preservation activities. “In general, we found that classic database systems are very limited for our purposes. Databases for collections in the art and museum sector tend to use categories that are assigned to classic art: there, an artwork usually has one creator, a single date of creation, it has a physical location and maybe dimensions. The Wikibase sofuware, with its basic schema of items, properties and qualifiers, offers a lot more flexibility to describe an ever-changing field like internet art. You don’t need to have a fixed worldview in place before you can start describing your objects; you can experiment, feel your way into it, and change the meaning of concepts over time. And even if you have a few ‘outlier objects’—exceptional cases—in your collection, you can still describe them in a meaningful way, without disturbing the other objects.” Blog

Translations in Text and Audio for language publishers: LinguaLibre

Search genome data in a structured way with WikiGenomes

Installation ● We have Docker images ● Setup your own installation including the Query Service (SPARQL endpoint) on the push of a button ● We included QuickStatements as a tool for mass uploads

We have a README-File! Follow the installation description at https://github.com/wmde/wikibase-docker/blob/master/README-compose.md Install with Docker Basic installation: ● Clone the repo from github ● run `docker-compose up -d` You may have to do some config file editing, but your basic example setup is now ready to go.

Demo Time

● Federated Wikibases There is ● Re-using Wikidata’s ontology ● A Wikibase ecosystem more coming

● Think about items and properties ● You’ll need technical experts , domain Think about knowledge data experts , and query your data experts

● What amazing repositories can you think of? Questions ● We decided to go with CC0 for data, will you join us? for you

Write me a message: jens.ohlig@wikimedia.de

Thank you very much.