Simon Schenk wrote:
> Am Donnerstag, den 09.07.2009, 12:08 -0400 schrieb Lee Feigenbaum:
>> Simon Schenk wrote:
>>> After some chatting with colleagues:
>>>
>>> 1) Whatever semantics we choose, the operator should not be called
>>> MINUS, as its semantics is not even roughly clear intuitively.
>>>
>>> 2) A restriction to min. 1 shared variable is not intuitive.
>> Simon, does #2 mean explicitly that your colleagues expect that
>>
>> {?a="a"} MINUS {?b="b"} = no solutions?
>
> exactly.
>
Interesting... I must say that I am still surprised by that 'no
solution' outcome. More than the 'restrictive' approach.
Ivan
>> Or does it mean that your colleagues are uncomfortable with the
>> restriction from an implementation or theoretic point of view?
>
> both. :)
>
> Cheers,
> Simon
>
>> Or something else?
>>
>> Lee
>>
>>> Cheers,
>>> Simon
>>>
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Ivan Herman, W3C Semantic Web Activity Lead
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Received on Friday, 10 July 2009 15:14:03 UTC