Re: Considerations on RDF presentation

From: Chris Bizer <bizer_at_gmx.de>
Date: Mon, 21 Mar 2005 13:53:15 -0500

Hi Stefano,

>>>Why is it less expressive? not trying to be dense, just curious.
>>>
>> Please express "Display all person that know more than 30 other persons
>> using a special color" with a CSS selector ;-)
>
>No, clearly not, but I think you are mixing concerns: the lens is the
>one responsible for the complex graph selection, not the style part.

I don't think so. You can express complex *styling* rules like the one above
with our current style vocab. And special colors are obviously styling.

Chris

----- Original Message -----
From: "Stefano Mazzocchi" <stefanom_at_mit.edu>
To: <general_at_simile.mit.edu>
Sent: Monday, March 21, 2005 1:27 PM
Subject: Re: Considerations on RDF presentation


> Chris Bizer wrote:
> >>Two things, though, that I didn't realize: first of all CSS selectors
> >>have no notion of namespaces. there was a proposal in 1999, but is still
> >>as a working draft, so I'm really not sure that fresnel:value:after
> >>would work.
> >>
> >
> > What are these guys doing?
> > Why do we trying to build on prehistoric technologies?
>
> I have the impression that they are still debating whether or not XSLT
> is better to style XML than CSS.... obviously missing the point, since
> XSLT has nothing to do with styling anymore.
>
> Welcome to the world of standard bodies :-)
>
> yeah, yeah, recommendations... whatever :-)
>
> >>Second, the above feels still a little too much RDFish for my XML
> >>tastes, there might be a way to make it look a little less verbose and
> >>yet as expressive (maybe using some attributes... not sure really, but I
> >>have that gut feeling that we can do more about this).
> >
> > I had attributes first, but the CSS for getting the information again
out of
> > the attributes was far beyond what any user would be willing to write
down.
> > Having nice CSS selectors was also the reason for the rather verbose
XML.
>
> I see, you are definately right in saying that CSS selectors was not
> really meant to cope well with attributes
>
> > I guess everybody will get what is meant with
> >
> > foaf:person > fresnel:property > foaf:depict > fresnel:value
>
> yes.
>
> >
> >>>Disadvantages
> >>>- Less expressive.
> >>
> >>Why is it less expressive? not trying to be dense, just curious.
> >>
> >
> > Please express "Display all person that know more than 30 other persons
> > using a special color" with a CSS selector ;-)
>
> No, clearly not, but I think you are mixing concerns: the lens is the
> one responsible for the complex graph selection, not the style part.
>
> >>>- blurres the distinction between selection and styling (by having
label
> >>>and image in the lens)
> >>
> >>True, although HTML suffers the same problem and we can't really say
> >>HTML was a failure, can we? ;-)
> >>
> >
> >
> > Might be true that blurring the distinction isn't a proplem.
> > I'm not sure yet.
> >
> > Emmanuel, what do you think?
> > Would something like this fit into IsaViz?
> >
> > Chris
> >
> >
> >
> >
>
>
> --
> Stefano Mazzocchi
> Research Scientist Digital Libraries Research Group
> Massachusetts Institute of Technology location: E25-131C
> 77 Massachusetts Ave telephone: +1 (617) 253-1096
> Cambridge, MA 02139-4307 email: stefanom at mit . edu
> -------------------------------------------------------------------
>
Received on Mon Mar 21 2005 - 18:51:53 EST