SWI-Prolog for the semantic web

Re:SWI-Prolog for the semantic web by moubarak on Sunday September 28, 2014 @10:30PM (#8381472)

SPARQL which is the standard query language for RDF is based on Prolog. So why go back to Prolog?

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Re:SWI-Prolog for the semantic web by ragebol on Monday September 29, 2014 @02:32AM (#8381881)

Prolog is a full programming language, SPARQL is only a query language.

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Re:SWI-Prolog for the semantic web by kendallgclark on Monday September 29, 2014 @02:11PM (#8384208)

SPARQL is similar to non-recursive Datalogˆnot, but that's a subset of full Prolog. SPARQL is a query language, not a full-on programming language as Prolog is.

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Re:SWI-Prolog for the semantic web by samuell on Monday September 29, 2014 @03:04PM (#8384587)

True. Most notably I badly miss the ability to encapsulate queries in named "functions". That is one of the things I really like in prolog, since it enables to quickly raise one's level of abstraction, by building up a "language" of facts and rules.

If anyone knows a way to do something similar in SPARQL, I'm highly interested to know.

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Re:SWI-Prolog for the semantic web by kendallgclark on Monday September 29, 2014 @06:25PM (#8385679)

You can do this with user-defined rules in some RDF databases. Stardog(.com) supports it nicely.

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Re:SWI-Prolog for the semantic web by samuell on Wednesday October 01, 2014 @11:22AM (#8395142)

Interesting, thanks for the hint!

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