5

I'm trying to get a list of all articles (just the names, not the contents) that are indirectly within the category Japanese people in Wikipedia.

I've tried using a tool called Quick intersection. The results aren't too bad, but I'm getting some apparently spurious results. For example, I get the article John Andru, who competed in an Olympic games in Japan, but who I don't think is Japanese.

I don't know whether this is a bug with Quick Intersection, or whether there is incorrect data in Wikipedia that is causing John to be categorized this way.

One approach I considered was working out what categories John Andru directly or indirectly belonged to. However, I don't know how to do that. I tried searching for that information, but the only thing I've found so far is this question, which wasn't answered.

How can I fix this dirty data problem?

Is Quick Intersection the most suitable tool for what I'm trying to do?

4

As far as I can see, there is no link from the category Japanese people to the article John Andru (at least based on dump from 1 October 2013), so I'm not sure why did the tool tell you otherwise.

But the category structure is pretty messed up. For example, John Andru is in the category 18th-century German writers, through chain of categories like this:

Category:18th-century German writers → Category:Immanuel Kant → Category:Kantianism → Category:A priori → Category:Analysis → … → Category:Statistics → … → Category:Anatomy → … → Category:Memory → … → Category:Design → … → Category:Justice → … → Category:Anti-corruption measures → … → Category:Students → … → Category:New Left → … Category:Free will → … → Category:Technology → … → Category:History → … → Category:Millennia → Category:2nd millennium → … → Category:1932 births → John Andru

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.