[Data-modeling] Modeling numeric uncertainties

[Bryan Cheung]

For reference, this was is of the open modeling questions for DA-636,  
also sent to the DM list in February (http://lists.freebase.com/pipermail/data-modeling/2009-February/001418.html 
).


On Apr 8, 2009, at 11:39 AM, Kirrily Robert wrote:

> I like it.
>
> K.
>
> On Apr 8, 2009, at 11:17 AM, Jeff Prucher wrote:
>
>> There's an open task to modify the schemata for chemical elements to
>> allow
>> for a data load, and one of the issues is that values like atomic
>> mass are
>> almost always given with a degree of uncertainty. The question is
>> how to
>> account for this in the model. The current suggestion is to use a
>> CVT, with
>> two properties: one for the base value, and one for the degree of
>> uncertainty (+/-); both measured in the same unit.
>>
>> See the property "atomic weight (new style)" on sandbox:
>> https://www.sandbox-freebase.com/view/en/thorium
>>
>> What do you think of this approach?
>>
>> Thanks,
>> Jeff
>>
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>
> -- 
> Kirrily Robert
> Freebase Community Director
> kirrily at metaweb.com
> http://freebase.com/
>
>
>
>
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