Issue 103 in void-impl: foaf:homepage IFP

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Dec 28, 2011, 7:46:31 PM12/28/11
Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Product-vocab

New issue 103 by foaf:homepage IFP

What steps will reproduce the problem?

1. <#DBPediaDataset> a void:Dataset ; foaf:homepage <> .
2. <#DBPediaProject> a foaf:Organization ; foaf:homepage
<> .
3. Perform OWL reasoning.

What is the expected output? What do you see instead?

Expected: <#DBPediaDataset> owl:differentFrom <#DBPediaProject> .
Actual: <#DBPediaDataset> owl:sameAs <#DBPediaProject> .

What version of the product are you using? On what operating system?


Please provide any additional information below.

Google Code's template bug report is really unhelpful for void.

The problem is using foaf:homepage, an IFP to link to a dataset's homepage.
What if somebody else decides that the URL is the foaf:homepage of an
organization, or, god forbid, a person. The dataset is not owl:sameAs the
project. (For example, while the dataset and project probably both have a
creation date, the project's creation date probably precedes the dataset's
creation date.)

Jan 1, 2012, 12:53:03 PM1/1/12
Status: Invalid

Comment #1 on issue 103 by foaf:homepage IFP

The modeling that you're using in your example is explicitly warned against
in the spec. Quoting:

To avoid inappropriate “smushing”, one should not use related pages that
are not specifically about the dataset, such as the funding project's
homepage or publishing organisation's homepage, as the value of
foaf:homepage. Additional web pages with relevant information that can not
be considered the homepage of the dataset can be linked with foaf:page.

Jan 1, 2012, 1:29:09 PM1/1/12

Comment #2 on issue 103 by foaf:homepage IFP

Perhaps worth stating the obvious, ie. that a single project or
organization could have multiple datasets?

Jan 1, 2012, 2:55:25 PM1/1/12

Comment #3 on issue 103 by foaf:homepage IFP

It may be explicitly warned about, but the only example given of a
foaf:homepage for a dataset, is <> which seems like a
potentially ambiguous one.

Jan 1, 2012, 3:09:27 PM1/1/12

Comment #4 on issue 103 by foaf:homepage IFP

Jan 1, 2012, 5:54:59 PM1/1/12

Comment #5 on issue 103 by foaf:homepage IFP

What other entity that is distinct from the DBpedia dataset could possibly
have <> as its homepage?

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