Hello, Persian Wikipedia is one of the largest wikis based on number of categories but It's not very common that people consider adding interwiki of categories (they think interwiki is just for articles) so we have tons of tons (before writing my engine that was 30K out of 170K) categories without any interwikis which is really bad. I wrote some codes to make it better but It wasn't enough So I wrote an engine that gets two database: 1-list of categories without interwiki 2-list of categories with interwiki to a certain language (e.g. English) with the target interwiki and after that my bot analyzes and "guess" what is the correct interwiki of category based on patterns of naming them in the second database and bot reports. After running this code on fa.wp there was a very huge report [1] and we started to sort things out (merging duplicates [2], deleting extra ones, adding the correct iw) and now it's less than 25K categories without interwikis (and It's becoming less and less) we did the same on templates namespace [3] and we interwikified more than 10K templates after that.
And because this engine doesn't use any language-related analyses It can be ran in any language and get interwiki from any language (we planned to run this on Persian Wikipedia again but this time we use Dutch and German languages as repo of interwiki)
So here is my question: Is there similar situation in your wiki? Do you want to run this code in your wiki too? Do you have any suggestion? [1]: https://fa.wikipedia.org/w/index.php?title=%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1:La... ردهها&oldid=10959457 [2]: One of the benefits of running this engine is we can find duplicates [3]: https://fa.wikipedia.org/wiki/%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1:Ladsgroup/%D8%A... Best --- Amir