[kdd] KDDIG tasks 3 and 5

[Raffaele D'Abrusco]

Thank you, Roy, for these interesting comments.
And thank to all the others who have already expressed their
intention to actively join the discussion and flesh out the
topics pointed out by Peppe.

It would be useful if all interested in contributing to the
hot topics that have emerged from discussion in Victoria, could add
their thoughts and comments on the specific pages I am currently
putting up on the IVOA KDD-IG wiki page.
Regards,

Raffaele




> It would seem to me that these points below are intimately related: (3)
> the templates and (5) working with IVOA, meaning choice of data models
> and formats. I would see the following as interesting data objects for
> the KDDIG:
>
> -- Catalog of sources, each with ID, position, magnitudes, ... more
> -- Light curve of source, with time, magnitude, upper-limit
> observations, ... more.
> -- Image, with WCS, calibration, ...more.
>
> In each case, there is an IVOA approach to these things through the
> spectrum data model (VOTable + Utypes). There are also other formats for
> these things that are not IVOA approved. And of course there is always a
> call for the stripped-down CSV (just gimme the data). The archive can
> have many format choices (so what are they?).
>
> One could also say that the formatting is easy once the data is in the
> database, which avoids choice of a specific syntax. But the *semantics*
> of that database schema must enable the *semantics* of every proposed
> output format.
>
> Roy
>
>
>
> >> 3. Begin to define a group of template datasets to be used for
> >> benchmarking of algorithms (C. Donalek, Caltech-USA)
> >>
> >> 5. Start the discussion on how the various DM tasks correlate with
> >> existing VO standards and eventually propose to the new community new
> >> ones.
>
> --
> California Institute of Technology
> 626 395 3670
>
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