Content Partnerships Hub report
SDC for fun and profit: detecting bad coordinates
Structured Data on Commons can help you analyse information about media files and spot inconsistencies and errors. One example is geographical coordinates.
Many photographs on Commons contain the coordinates of where they were taken in their metadata, as saved by the device (mobile phone or camera). This is very useful information, but it's not always correct. If your camera saves erroneous coordinates with your photo, there's a risk you won't notice it when uploading the photo to Commons.
Then a bot comes and automatically copies the coordinates to SDC as coordinates of the point of view. Now the error is in two places!
But now that the coordinates are included in SDC, it also makes them easier to spot. We can use the Wikimedia Commons Query Service to plot photos on a map, and anything suspicious will stand out.
We discovered this when working with structured data in Wiki Loves Monuments photos. First, we add information about the competition to all photos in a country's category, for example Images from Wiki Loves Monuments 2021 in Iran.
Then we can write a query to put all photos participating in WLM Iran on a map.
We can easily see all the files whose coordinates are clearly not in Iran! We can now remove the coordinates from both the file page's wikitext and the SDC.
Note that the Wikimedia Commons Query Service is still in beta, and doesn't update automatically. The data is updated via weekly dumps. So you won't be able to see your edits reflected in the map until after a couple days.
You can follow our work with SDC and WLM photos here. There you can find a list of the countries we've worked on – some recent updates include Georgia and Venezuela – as well links to the SPARQL map queries.
How many bad coordinates can you spot in your country?
Needs assessment – video recorded interviews
Previous interviews have shown quite similar needs and where more resources are needed. We have now switched over and started recording interviews to be able to go back and follow longer reasoning on certain issues. Examples of questions we've discussed - Do we need more Wikimedia ambassadors to talk about the benefits of the platforms? How could one conduct courses and collaborations with a global perspective? What would a mentorship program for content partnership look like?
Do you have any more ideas? Feel free to get in contact with: tore.danielssonwikimedia.se
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