>> I don't see this as a big overhead. It is more a problem for ordering, >> but internally, wikidata could store a "midpoint" value for intervals >> where no explicit central value is given, and use these for ordering >> purposes. > > Well, I would call that "mid point" simple "the value", and the range would be > the accuracy. There's an important conceptual distinction here to having > ranges > as actual values.
Can this conceptually distinguish between a meaningful midpoint value, and one that is useful for ordering, but has no meaning and should not be displayed as a result value? See the examples on https://meta.wikimedia.org/wiki/Talk:Wikidata/Development/Representing_values#Missing_central_value Gregor PS: With accuracy you introduce a new concept here which was not in the representing values paper (see http://en.wikipedia.org/wiki/Accuracy_and_precision). This is different from confidence interval ("uncertainty") where it is not yet decided whether the value indicates accuracy or dispersion. Confidence interval is a measure of Accuracy only if the sample measurements are normally distributed and if no systematic bias exist. --- I believe it is important that wikidata is flexible enought so it can capture both, especially because in many cases dispersion is used as a rough estimate for otherwise unknown accuracy, and since in many cases there is no "true single value" and the dispersion is systematic (see e.g. car model length example). _______________________________________________ Wikidata-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-l
