Closed lihuiliullh closed 2 years ago
Qualifiers are used in Wikidata (similar concepts exist in other KGs), and extend the standard triple structure to store contextual information on a fact, like the date in time, the character of a cast member, a series ordinal and similar.
"A fact is a <subject, predicate, object> triple, that is optionally augmented by <qualifier predicate, qualifier object> pairs which specify context information for the main triple. For example, <2018 FIFA World Cup Final, participating team, France national football team; location, Luzhniki Stadium; point in time, 15 July 2018> is such a fact, where the first three items constitute the main triple, and the last four make up two qualifier predicate-qualifier object tuples." (from https://arxiv.org/pdf/2108.08597.pdf)
Thanks.
May I know what is qualifiers? Can you give an example of it?