DAL Running Meeting #18 - SODA-next

Tue Apr 2 11:00:34 CEST 2024

FYI, the Etherpad for this upcoming DAL running meeting has been updated 
with all the notes given by François.

Cheers,
Grégory

On 29/03/2024 19:14, BONNAREL FRANCOIS wrote:
>
> Dear DALers,
>
> Other material that could be discussed in the next running meeting :
>
> *SIA-extended or DAP :*
>
> See https://github.com/ivoa-std/SIA for most issues below
>
> and https://github.com/ivoa-std/DAP for the DAP PR #3
>
> DAP is the extension of SIA to other dataproducts than images and cubes
>
> + input PARAMETERS with limited list of values : better description 
> (github SIA issue #1 <https://github.com/ivoa-std/SIA/issues/1>)
>
> + No input PARAMETER exists to select the RELEASE DATE (github SIA 
> issue #2 <https://github.com/ivoa-std/SIA/issues/2>)
>
> + No Wild-carding of the input PARAMETERS values exists (github SIA 
> issue #3 <https://github.com/ivoa-std/SIA/issues/3>)
>
> + input PARAMETERS values are case sensitive (github SIA issue #4 
> <https://github.com/ivoa-std/SIA/issues/4>)
>
> + 1 shot discovery (and then access) to cutouts was possible in SIA1 
> but no more in SIA2 (github SIA issue #6 
> <https://github.com/ivoa-std/SIA/issues/6>)
>
> + SIA2 cannot discover rebinned data like SIA1 was able to do (github 
> SIA issue #8) + It is not possible to query SIA services by MOC 
> (github SIA issue #9 <https://github.com/ivoa-std/SIA/issues/9>)
>
> + Update matching in-progressDataLink 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>update  in examples
>
> + extension of SIA-style protocol usage outside the image/cube "camp" 
> (github SIA issue #10 <https://github.com/ivoa-std/SIA/issues/10>) 
> ----> see DAP PR #3
>
> Apart from github SIA and DAP repositories the discussion can 
> alternatively be read there : 
> https://wiki.ivoa.net/twiki/bin/view/IVOA/SIAP-2_0-Next
>
> *DataLink : *
>
> version 1.1 has been released
>
> There are still points which have been discussed and not integrated
>
> see : https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink-1_1-Next and 
> github repository
>
>   * service descriptor : URL could benefit go be templated (for
>     example to pick up part of the path from the user or from the
>     table and not only parameters). Proposals have been made but it
>     was delayed to next version until some service implement it.
>     (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#27).
>     ProbablyDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>2.0
>   * DataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>underlying
>     data model : is content_type, content_qualifier, semantiics
>     triplet enough. Should we distinguish conveyed "information" and
>     conveyed "realtionship" (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#44). This is
>     a discussion forDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>2.0.
>   * Service descriptor inputParams enhancing distinction between
>     required and optional parameters (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#51). No
>     obvious solution has been found at the moment.
>   * Service Descriptor to be removed fromDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>and pushed to
>     VOTable (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#53). This is
>     a major revision ofDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>but also of
>     VOTable. Version 2.0. This may also be completed by introduction
>     of the templating mechanism or even more by the use of PDL inside
>     inputParams.
>   * content parameter in datalink mime type. (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#82). This is
>     apparently to be solved in VOTable beforeDataLink1
>     <https://wiki.ivoa.net/twiki/bin/edit/IVOA/DataLink1?topicparent=IVOA.DataLink-1_1-Next;nowysiwyg=0>.1
>     becomes a REC
>   * UCD for ID column in {links} service output . Is not the same as
>     the UCD of ID parameter in anySODA
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA>service referring
>     to the ID column in the {links} table. Is that an issue ?
>     apparently not (issueDataLink
>     <https://wiki.ivoa.net/twiki/bin/view/IVOA/DataLink>#89)
>
> And a new one (which may be solved by an erratum ?)
>
>   * inputParams could refer to PARAM as alternative to FIELD
>     (https://github.com/ivoa-std/DataLink/issues/115)
>
> *DataLink implementation note :*
>
> **
>
> **
>
> While finishing the DataLink recommendation process we decided to have 
> some non-normalized proposals for recognition in an Implementation 
> Note This is now here : https://github.com/ivoa/DataLinkRecImplNote
>
> And the draft can be read here : 
> https://github.com/ivoa/DataLinkRecImplNote/releases/download/auto-pdf-preview/DataLinkImp-draft.pdf 
> Cheers
>
> François
>
> Le 28/03/2024 à 23:40, BONNAREL FRANCOIS via dal a écrit :
>>
>> Dear DALers
>>
>> Here is a teaser on what could be discussed during this meeting.
>>
>> SODA : there is a PR on github which I already modified after 
>> feedback from Pat
>>
>> includes proposal for :
>>
>> + pixel cutouts (instead of world coordinates) on all axes are 
>> missing (SODA <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> github 
>> issue #3)
>>
>> + No possibility to control output WCS by regridding/rebinning exists 
>> in SODA <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA>. (SODA 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> github issue #4)
>>
>> + It is not possible to query SODA 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> services by MOC 
>> (SODA <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> github issue #5)
>>
>> + SODA spec doesn't tell us how to provide dataproduct_type 
>> transformation (SODA <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> 
>> github issue #7)
>>
>> + Format transformation : FITS to png/jpeg, FITS to HiPS 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/HiPS>, HiPS 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/HiPS> to FITS etc (SODA 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> github issue #14)
>>
>> + Extracting metadata from the dataset (SODA 
>> <https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA> github issue #15)
>>
>> See github or also : 
>> https://wiki.ivoa.net/twiki/bin/view/IVOA/SODA-1_0-Next
>>
>> Cheers
>>
>> François
>>
>> Le 27/03/2024 à 14:47, Grégory Mantelet via dal a écrit :
>>> Dear DAL members,
>>>
>>> Here is an announcement for a new DAL Running Meeting.
>>>
>>> This time, the topic is SODA-next, followed by some other thoughts 
>>> about DAP(SIA), DataLink implementation and ProvTAP.
>>>
>>>     *Date    :* 18^th April 2024
>>>     *Time    : *5:00 AM UTC /(7:00 AM CET (Paris), 3:00 PM AEDT
>>>     (Canberra), 10:00 PM PDT (Vancouver))/
>>>     *Duration:* 1 jour
>>>     *Location:
>>>     *https://cnrs.zoom.us/j/96722307540?pwd=VUxJRmdwcVF0akpnejJnZkFEelZNdz09
>>>
>>>
>>>     /*Meeting ID:* 967 2230 7540/
>>>
>>>     /*Passcode :* FbjtF3/
>>>
>>>
>>> Cheers,
>>> Grégory Mantelet & James Dempsey
>>>
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