Hi Cav,You provide a good review about methods we have today to display transitive property chains - thanks! Your solutions are very creative however I think it'd help us all to modify SMW #ask syntax to handle these chains? It's easy to believe many need to select pages based on a transitive property predicate and second, to print all values of a transitive property for each 'root' page in a query result.
*Transitive predicates. *Tests for whether a page [[pn::+]] = has 1+ 'pn' relations [[pn*::+]] = has 1+ 'pn' relations (implicit wildcard)[[pn?::+]] = has 1+ 'pn' relations AND that no 'pn' relation has any 'pn' relation [[pn+::+]] = has 1+ 'pn' relations AND that some 'pn' relation has 1+ 'pn' relations
*Transitive property values. *For each page in a result set*, *|?pn = prints all 'pn' relations (no transitives) |?pn* = prints all 'pn' relations (implicit wildcard, no transitives)|?pn? = prints all 'pn' transitive relations - once-removed (parent) transitives
|?pn+ = prints all 'pn' transitive relations - maximum transitivityThis syntax works with multilingual syntax options I have sketched. Following, a query yields all pages that have a French-qualified value for property "Located in". It then lists the object's French and English values, with maximum transitivity for each, for the property.
{{#ask: [[Located in @fr *:: +]]
|?Located in @fr += @en=Located in<br/>(French) @fr=Situe
dans<br/>(Francais)
|?Located in @en += @en=Located in<br/>(English) @fr=Situe
dans<br/>(Anglais)
}}I don't see much value when querying to lookup whether the named property is "transitive" or not...
Any thoughts about how to modify the #ask command for transitives? thanks/john[1] https://semantic-mediawiki.org/wiki/Help:Inferencing#Inferencing_features_that_are_not_supported
[2] http://www.w3.org/TR/sparql11-query/#propertypaths On 9/11/2015 2:19 AM, Cavila wrote:
Here's a draft which aims to offer a couple of tips if you need to use or mimic inheritance in a hierarchy of subclasses. http://semantic-mediawiki.org/wiki/User:Cavila/inheritance_in_hierarchies It could be considered a follow-up to the musing brainstorm that I posted back in 2013 with the subject 'Hierarchies again' - more so because the feature that Alexey and Yury were working on at the time for the Wikivote website now seems to have its counterpart in the 'tree' and 'oltree' result formats (SRF) - sorry, I don't know if or how the two things are connected. Pending the status of the 'template' parameter (which seems to be buggy), these formats could be of tremendous value for this important issue. Any input or further ideas would be welcome, of course. I'm not a developer, just someone trying to make the most of what's available and trying to give something back. Best, Cav ------------------------------------------------------------------------------ _______________________________________________ Semediawiki-user mailing list semediawiki-u...@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/semediawiki-user
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