On 08.06.2015 11:16, Bene* wrote:
Hi
Am 07.06.2015 um 17:18 schrieb Markus Krötzsch:
Magnus also pointed out that many external IDs are "self-verifying" in that they are their own reference. The situation is somewhat similar for homepages. Should we adopt the practice of giving a single retrieved value (without any further information) as the reference for such cases?
I'd use the reference URL the value was imported from together with the retrieved value.
Yes, that's a good point. Even if an ID has a value for "formatter URL" that defines the URL, it might be good to record the URL that was used to verify the data, since the formatter URL might change. Especially bots should add this, since it's no extra work for them. However, a single "retrieved" value is still better than nothing there. For homepages and other URL properties, I would not maybe store the URL again in the reference.
Note that most often the reference is not where the value is "imported from" but simply an external reference. In many cases, we have imported data from Wikipedia but it is then verified from another dataset.
Cheers,
Markus