Hi,
as of
>>> 2. How connected a Wikidata item is. Once an item is created how does it connect to other area's?
as Nicolas has pointed out the Wikidata Concepts Monitor (WDCM) system was built with the purpose to answer to this and similar questions.
>>> Is everything connected, or are we actually looking at a collection of isolated data clusters? Is there a way to visualize this?
I hope you understand how complex your question is. There are different statistical, analytical strategies that could be employed to provide an answer. The WDCM system relies on some of them. I would suggest learning how to work with the following data products in order to start investigating these questions:
We use directed graphs, similarity maps and dendograms to visualize the structure of Wikidata item and Wikimedia projects linkage in respect to how the Wikidata items map (i.e. how they are re-used) across the Wikimedia universe.
The WDCM
documentation page is on Wikitech but it needs an update badly because of a thorough re-engineering that started in December 2019 and is now getting close to completion.
In the meantime, I will be more than glad to answer to any questions that you might have. Note: a Google Hangouts session works better than tons of emails. Thank you for your understanding.
With best regards,
Goran S. Milovanović, PhD
Data Scientist, Software Department
Wikimedia Deutschland
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"It's not the size of the dog in the fight,
it's the size of the fight in the dog."
- Mark Twain
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