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@chris-little
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Removed undefined terms narrowerThan, statisticalMeasure and statisticalPeriod from the Parameter Group examples. Add another example to the JSON-LD section.

@jonblower
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Hi @chris-little, thanks for doing this. Having thought about it, I'm wondering if we should just remove the section about statistical measures altogether for now. There's a lot of stuff that would need defining, even in the new simplified version. How about simply including some placeholder text, e.g. "ParameterGroups can also be used to gather related statistical quantities, but this will be defined in a future version of the spec"?

@jonblower
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This looks OK as far as I can tell but would benefit from a review from someone who's more familiar with how to insert new vocabularies via the JSON-LD context - perhaps @KathiSchleidt?

link to archived version of UncertML website (closed in 2016)
@chris-little chris-little requested a review from ghobona January 13, 2026 18:33
Reliable reference for statistical Measures found
@KathiSchleidt
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I'm fine with the hack of referencing eurostat glossary terms, but don't understand why you removed the statisticalPeriod, this loses the daily aspect, now only available in prose.

In this example, additional semantics for the registered `dct` prefix are provided by stating that the `"dct:license"` member value in this document is an identifier and not just an unstructured string.
Example:

In this example, extra attributes of the `Parameter` have been declared stating that the parameter is a more specific example in the context of a more general vocabulary.

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Please replace the 2nd instance of the word "example" with concept, the example in the example is confusing:
"parameter is a more specific concept in the context of a more general vocabulary."

"@context": [
"https://covjson.org/context.jsonld",
{
"skos": "http://www.w3.org/2004/02/skos/core",

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Adding this here doesn't make sense, as already included in the prefixes file of the base CovJSON context

"label" : {
"en": "Sea surface temperature daily mean"
},
"statisticalMeasure": "https://web.archive.org/web/20161029215223/http://uncertml.org/statistics/mean",

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Looking at the example above, statisticalMeasure should reference https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Glossary:Arithmetic_mean

@KathiSchleidt
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On narrowerThan, either drop or provide correctly! I'd remove in the first JSON examples, only provide in the last one where you have "narrower": ["http://vocab.nerc.ac.uk/standard_name/sea_surface_temperature/"]

"narrower": "http://www.w3.org/2004/02/skos/core" makes absolutely no sense!!!

I left various comments in the file

@chris-little
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chris-little commented Jan 28, 2026

@KathiSchleidt > I'm fine with the hack of referencing eurostat glossary terms, but don't understand why you removed the statisticalPeriod, this loses the daily aspect, now only available in prose.

The PR was to remove undefined terms in response to your Issue #194 . It is only an example. It is not normative. Do you have a reliable source definition of statisticalPeriod?

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4 participants