Property talk:P1482

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Stack Exchange tag
tag on the Stack Exchange websites

Description	Link to tag for the concept on a Stack Exchange (Q3495447) website like Stack Overflow (Q549037)
Represents	Stack Exchange Folksonomy (Q30337063), Stack Exchange (Q3495447)
Data type	URL
Domain	Very general, since Stack Exchange sites cover a wide variety of domains, although each site is usually rather well scoped. (note: this should be moved to the property statements)
Allowed values	According to this template: URLs on any of Stack Exchange sites (full list) of the form "http://site/tags/tag" According to statements in the property: .+/tags/.+https?.+ When possible, data should only be stored as statements
Example	PHP (Q59) → https://stackoverflow.com/tags/php https://webmasters.stackexchange.com/tags/php https://unix.stackexchange.com/tags/php https://superuser.com/tags/php algorithm (Q8366) → https://stackoverflow.com/tags/algorithm https://cs.stackexchange.com/tags/algorithms GNU Emacs (Q1252773) → https://stackoverflow.com/tags/emacs
Source	According to this template: external reference According to statements in the property: https://stackoverflow.com/tags/ When possible, data should only be stored as statements
Robot and gadget jobs	Bots could look for new tags, look for tag aliases, etc.
See also	Stack Exchange site URL (P6541), hashtag (P2572)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Mix'n'match (Report) Database reports/Constraint violations/P1482 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 5,774 Main statement 5,767 99.9% of uses Qualifier 7 0.1% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1482#Unique value, SPARQL (every item), SPARQL (by value)

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P1482#Scope, hourly updated report, SPARQL

Format “.+/tags/.+”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1482#Format, SPARQL

Format “https?.+”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1482#Format, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1482#Entity types

Qualifiers “number of records (P4876), start time (P580)”: this property should be used only with the listed qualifiers. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1482#allowed qualifiers, SPARQL

This property is being used by: ca:Plantilla:Infotaula format de fitxer, ca:Plantilla:Infotaula llenguatge programació, ca:Plantilla:Infotaula de programari, ca:Plantilla:Infotaula de programari/prova, ca:Plantilla:Infotaula programari, ca:Plantilla:Infotaula programari/prova ast:Plantía:Ficha de software ga:Teimpléad:WD Bosca Sonraí Bogearraí Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Format: value must be formatted using this pattern (PCRE syntax).
https://((academia|android|anime|apple|arduino|astronomy|aviation|beer|bicycles|biology|bitcoin|blender|boardgames|bricks|buddhism|chemistry|chess|chinese|christianity|codegolf|codereview|cogsci|cooking|craftcms|crypto|cs|cstheory|datascience|dba|diy|drupal|dsp|earthscience|ebooks|electronics|ell|emacs|english|expatriates|expressionengine|fitness|freelancing|french|gamedev|gaming|gardening|genealogy|german|gis|graphicdesign|ham|hermeneutics|hinduism|history|homebrew|islam|italian|japanese|joomla|judaism|linguistics|magento|martialarts|math|matheducators|mathematica|mechanics|meta|moderators|money|movies|music|networkengineering|opendata|outdoors|parenting|patents|pets|philosophy|photo|physics|pm|poker|politics|productivity|programmers|puzzling|quant|raspberrypi|reverseengineering|robotics|rpg|russian|salesforce|scicomp|scifi|security|sharepoint|skeptics|softwarerecs|sound|space|spanish|sports|sqa|startups|stats|sustainability|tex|tor|travel|tridion|unix|ux|video|webapps|webmasters|windowsphone|wordpress|workplace|writers)\.stackexchange\.com|askubuntu\.com|mathoverflow\.net|pt\.stackoverflow\.com|serverfault\.com|stackapps\.com|stackoverflow\.com|superuser\.com)/(tags|questions/tagged)/.*

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1482#Format, SPARQL

Pattern ^http://(.+)$ will be automatically replaced to https://\1. Testing: TODO list

Format

I'd propose to use only tag as a value and to generate full path by gadget Authority control. Infovarius (talk) 19:15, 22 September 2014 (UTC)

Anything that reduces duplication makes sense. I'm new getting data into WikiData, so perhaps you can help. A complicating feature is that there may be tags on multiple stack exchange sites for an item. For example: Java (Q251) should have at least http://serverfault.com/tags/java and http://stackoverflow.com/tags/java as values. I can provide a list of valid sites, but it will be constantly updating. Bskaggs (talk) 16:21, 23 September 2014 (UTC)

I wrote a ruby script to produce a validating regular expression for acceptable links based on the Stack Exchange RSS feed of new sites. I'm not sure if (or how) this filter should be put into the abuse filter. If you run the script today, you get this regex --Bskaggs (talk) 16:21, 24 September 2014 (UTC)

Hm, different beginnings make things harder. I've forgotten about them. Now I doubt that only tag is enough. --Infovarius (talk) 13:34, 27 September 2014 (UTC)

Doesn't get grouped as an identifier?

For example on One Piece (Q673), the Stack Exchange tag is listed with the statements instead of the identifiers at the bottom, such as Quora topic ID (P3417) or subreddit (P3984). Opencooper (talk) 07:29, 18 November 2018 (UTC)

@Opencooper: the reason is that it's a URL not an external-id. And it's a url because there are many StackExchange sites, not one --Vladimir Alexiev (talk) 10:27, 20 April 2019 (UTC)

Ahh okay, that makes sense. Thanks! Opencooper (talk) 12:30, 20 April 2019 (UTC)

Each Stack Exchange site manages its own tags

Compare the meaning of the tag "children" on these two Stack Exchange sites:

• Stack Overflow: Children is the set of all nodes within a hierarchical data structure which have a node above them https://stackoverflow.com/search?q=%5Bchildren%5D+is%3Aq+closed%3Ano&mixed=0
• Travel: Travel with children of all ages from infants to toddlers to teenagers. https://travel.stackexchange.com/questions/tagged/children

To fix this, I suggest either renaming this property to "Stack Overflow", or adding an indication of what Stack Exhchange site (for instance Travel) it comes from. Thanks! Syced (talk) 15:04, 12 May 2019 (UTC)

Ah, nevermind, I just noticed that the property includes the site URL, so it is all good, sorry for the noise :-) Syced (talk) 15:07, 12 May 2019 (UTC)