[Data-modeling] Modeling numeric uncertainties

[Gordon Mackenzie]

Looks good to me.

----- Original Message -----
From: "Jeff Prucher" <jeff at metaweb.com>
To: "Freebase data modeling mailing list" <data-modeling at freebase.com>
Sent: Wednesday, April 8, 2009 11:17:21 AM GMT -08:00 US/Canada Pacific
Subject: [Data-modeling] Modeling numeric uncertainties

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

_______________________________________________
Data-modeling mailing list
Data-modeling at freebase.com
http://lists.freebase.com/mailman/listinfo/data-modeling