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<p>Hi Petr<br>
</p>
<br>
<div class="moz-cite-prefix">Le 12/10/2019 à 01:14, Petr Skoda a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:alpine.DEB.2.20.1910120107050.32533@pollux.stel">
<br>
<blockquote type="cite">The term timeseries would not be enough by
itself to know what the content of datalink is since it could be
light curves (tabular data), images or spectra. These are the
most common cases, and I would like to propose a common usage,
e.g.:
<br>
<br>
timeseries-lightcurve
<br>
timeseries-radialvelocities
<br>
timeseries-spectra
<br>
timeseries-images
<br>
</blockquote>
<br>
timeseries of images is in fact what we are presenting in our
model in Fig.~13 - to every point of a light curve is associated
the link to original image (here we were thinking about placing
the provenenace )
<br>
<br>
so the time series of images is just a normal time series (where
another "axis" paralel with e.g. flux is an axis of mappings
(links to images)
<br>
<br>
As I have shown in Sydney 2015, the SPLAT , TOPCAT and ALADIN
understand this well and (Fig.15 in a note) displays the image. We
can even support cutouts ...
<br>
</blockquote>
<br>
But the point raised by Ada was not to address the case where you
want to modelize this but more simply the case where you want to
attach a timeSeries dataset to a source in a catalog (GAIA use case)<br>
USING DAtaLInk<br>
<br>
Indeed, this is a vocabulary evolution problem. There is a proposal
to extend DataLink vocabulary (semantics field) see (<a
class="moz-txt-link-freetext"
href="https://wiki.ivoa.net/twiki/bin/view/IVOA/UpdateDatalinkTerms">https://wiki.ivoa.net/twiki/bin/view/IVOA/UpdateDatalinkTerms)</a>
<br>
<br>
<br>
We should extend this a little bit in the direction proposed by Ada<br>
<br>
Semantics working group will manage the procedure.<br>
<br>
Cheers<br>
François<br>
<blockquote type="cite"
cite="mid:alpine.DEB.2.20.1910120107050.32533@pollux.stel">
<br>
<br>
<br>
<br>
<blockquote type="cite">
<br>
Opinions or comments? Does this make sense to you?
<br>
<br>
Ada
<br>
<br>
</blockquote>
<br>
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<br>
* Petr Skoda Tel : (323) 649201, l.
361 *
<br>
* Stelarni oddeleni (323)
620361 *
<br>
* Astronomicky ustav AVCR, v.v.i Fax : (323)
620250 *
<br>
* 251 65 Ondrejov e-mail:
<a class="moz-txt-link-abbreviated" href="mailto:skoda@sunstel.asu.cas.cz">skoda@sunstel.asu.cas.cz</a> *
<br>
* Ceska
republika *
<br>
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<br>
</blockquote>
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