Wikipedia talk:WikiProject Categories
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How to respond when someone makes massive changes in categorization
- defied the previous discussion on Talk:States-Provincial;
- the new name was odd: with a bad hyphen between 'Provincial' and 'Council' (in the previous discussion I had proposed 'Provincial councils in the Netherlands'), the capitalisation of Council (suggesting it to be an official name, which it is not) and a needless qualifier 'Netherlands' (there is no article Provincial-Council).
I invited the user to reopen the discussion on the talk page, if s/he wanted it, and thought no more of it, but just today, I discovered that the user also changed the categorisation of provincial politicians in the same way. Now there is Category:Members of the Provincial-Council of the Netherlands (shouldn't 'council' be at least in plural, if the renaming was agreed upon??) with 12 subcategories for the 12 provinces, which also have been renamed. And the user moved all 95 mentioned politicians to the new categories. (To be fair, the same user was the person who created some of the original categories in the first place.)
A few days ago, blanked categories have also been tagged for speedy deletion, apparently by a user who only saw (how could s/he) that it was empty and did not see that this was the result of a bad move.
On the Dutch Wikipedia, changing the title of a category has to be discussed on the discussion page for categories. Individual articles are not allowed to be moved until the discussion has been closed. Those preposterous moves will be reverted, even if the category will go through at the end of the day. I wonder what the English Wikipedia policy is on this? And can all those moves only be reverted 'manually' (one by one), or is there an administrator who can do it quicker? Bever (talk) 23:09, 15 October 2014 (UTC)
- When it was proposed that the software be changed to give ordinary users the power to rename categories (assuming that's what you mean by "changing the title of a category") many experienced wikipedians pointed out that it would lead to problems like this, but WMF went ahead anyway - see Wikipedia:Administrators'_noticeboard/Archive262#Category_pages_will_be_movable_soon. Has Dutch wp put a technical restriction in place to prevent undiscussed category renames? DexDor (talk) 05:30, 16 October 2014 (UTC)
- It seems that the user did not, technically, rename the categories, but instead created new categories (see for example this edit) and moved all articles to the new categories. So this would also have been possible in the past.
- But perhaps the new renaming option would encourage users to make more erroneous moves without proper discussion. So there has been some discussion indeed on the Dutch Wikipedia about restricting this new right to moderators (sysops), but no decision has been made yet. See nl:Wikipedia:Verzoekpagina voor moderatoren/Overige#Hernoemen van categorieën. Bever (talk) 02:56, 20 October 2014 (UTC)
Category intersection requires stricter categorization
How many (English) Wikipedia pages would you expect to find at the intersection of Category:Monarchy and Category:Geology ? A few maybe (e.g. members of royal families who were also notable as geologists).
How about at the intersection of all of Category:Monarchy, Category:Historical geology, Category:Geometric topology, Category:Veterinary medicine, Category:Epistemology of religion, Category:Museology, Category:Tourism, Category:Propaganda, Category:Astronomical dynamical systems and Category:Digital technology ? I.e. how many wp articles are about something that is a subtopic of all those topics ?
In fact, there are currently tens of thousands of pages at that intersection - one category alone having over 17000 pages. And yes, that category really is a subcategory of all 10 categories listed above (and many others) (as of 17-18 Oct 2014). The full structure is rather large to show here, but, for example, to see (one way) how Category:Tourism is a subcategory of Category:Geometric topology follow these dots .................. There are also many cases where the categorization is circular (e.g. Category:Ethnology and Category:Ethnicity).
Thus, (with the current category structure) a reasonable category intersection query can require a huge processing resource and then produce a long list of mostly irrelevant articles. No wonder that the category intersection tools are currently out of service ().
If we are ever to get category intersection working well (if at all) then we need to be much stricter about enforcing the rule that "When making one category a subcategory of another, ensure that the members of the subcategory really can be expected (with possibly a few exceptions) to belong to the parent also.". It would also be very helpful if we had some automated way to identify categorization loops (which clearly means that something's gone wrong in the categorization).
Reality shows, participants and overcategorization
I started a discussion at Wikipedia talk:OC#WP:PERFCAT and reality shows regarding reality show participants and overcategorization. Feel free to chime in. Thanks. Nymf (talk) 14:11, 24 October 2014 (UTC)
Upcoming Indian films
Wikipedia:Village pump (miscellaneous)/Archive 47#Category loops (version of 11:30, 25 October 2014) has a discussion of category loops, and a link to User:Danilo.mac/Category loops, where 200 category loops are listed.
—Wavelength (talk) 14:33, 25 October 2014 (UTC)
WikiProject X is live!
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