I detect a need to characterize the range expression - most important of which is whether the range is complete, or whether it excludes (equal) tails on each end. XSD presumes a complete range is being specified, not a subset, is the issue you're raising?
Could an additional facet for "percentage-tails-excluded" effectively communicate this estimate? On 21.12.2012 10:41, Gregor Hagedorn wrote: > On 21 December 2012 19:36, <jmccl...@hypergrove.com> wrote: > >> The xsd:minInclusive, xsd:maxInclusive, xsd:minExclusive and xsd:maxExclusive facets are absolute expressions not relative +/- expressions, in order to accommodate fast queries. These four facets permit specification of ranges with an unspecified median and ranges with a specified mode, inclusie or exclusive of endpoints, a six-fer. For these reasons I believe the XSD approach is superior for specifying value set when compared to storing the dispersion factors themselves, eg the "3" of +/- 3. > > yes, provided they are actually tied to the semantics of min. and > maximum, which the xsd examples are. As long as the semantics of the > proposed "value bracketing" in Wikidata is unknown, their use is > questionable if not impossible. If I know something is plus/minus 2 > s.d. or plus minus 2 s.e. or 10 to 90 % percentile ... I again can use > them to the benefit of the query system. But not without. > > Gregor > > _______________________________________________ > Wikidata-l mailing list > Wikidata-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata-l [1] Links: ------ [1] https://lists.wikimedia.org/mailman/listinfo/wikidata-l
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