International Virtual Observatory Alliance

Difference: IvoaSemantics (71 vs. 72)

Revision 722018-02-21 - MireilleLouys

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IVOA Semantics Working Group

VocabularyTestPage

The Semantics Working Group

Charter for the Semantics WG, approved by EXEC on 17 May 2006:Charter-Semantics.pdf

The Semantics Working Group superseded the UCD Working Group, effective from June 20th, 2006.

Group lead and advising comitee

WG Chair	MireilleLouys	(2015-)
WG Vice-chair	Alberto Accomazzi	(2015-)
WG Chair emeritus	SebastienDerriere	(2006-2012)

Documents

UCD list update

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Planetary and Solar science has provided various inputs and requests for new UCD terms.

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Procedure to Modify UCD Words

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In parallell some physical and statistical quantities have also been requested for addition into the UCD list.

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The procedure complies with the following basic principles:

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The current update for the UCD list is ready for review in the Semantics working group and all interested people. Please check :

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Any member of the IVOA community can submit at any time a request for modification (RFM) of the controlled list of UCD words;

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A globally editable page1 is the interface between the community and the Scientific Board in charge of discussing the RFM;
The author of a RFM should get an answer within 6 weeks; At regular intervals (synchronized with IVOA Interoperability meetings) the approved modifications are integrated in a new version of the IVOA UCD1+ Common Vocabulary.

Current page for request for modification:

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The UCD1+ controlled vocabulary, Update for Planetary and Solar data, Version 1.3: IVOA Working Draft 2017 May 02

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http://wiki.ivoa.net/twiki/bin/view/IVOA/RFMforUCD

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and add your comments on the Discussion page : ReviewUCDlist2017May

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Previous RFM pages :

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Deleted:

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IVOA Recommendations

Current work

Elaboration of new UCD keywords for planetary metadata.

This new effort is described on the PlanetaryUCD page .

Update of the UCD Maintenance Standard

Latest documents

2017 Update of the UCD Maintenance Standard (initiated at the Shanghai Interop, May 2017)

Version 1.20

Note Version 2.0, 6 June 2017

Note Version 2.0, 6 June 2017 in track change mode from V1.20

This Note is turned to a Working draft proposing the Maintenance Process as an IVOA standard , in coordination with Standards & Process WG.

[[http://wiki.ivoa.net/internal/IVOA/IvoaSemantics/WD-UCDlistMaintenance-2.0-20171018-Trackmode.pdf][WorkingDraft 2.0, 19 October 2017 in track change mode from V1.20]]

Unique identifiers and description for facilities and instruments in astronomy and planetary science (started 2014)

Unified names and identifiers for VO Facilities :Unified Facilities Description UniFacil (on going)

Units specification in the IVOA

VOUnits:

The VOUnits document is now an IVOA REC. The VOUnitsRFC and DiscussionOnVOUnits pages still exist, but should not now be added to.
There are no immediate plans for further work on the standard, however there is a small collection of issues and suggestions at VOUnitsNext

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Vocabularies in the IVOA

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Vocabularies in the IVOA

Documents, releases and drafts are in the VocabulariesWorkingArea

Scope of a Standard Vocabulary: StdVocabScope
Use Cases for a Standard Vocabulary: StdVocabUseCases

Keywords

Astronomical Keywords in the era of the Virtual Observatory, IVOA Note AstroKeysTN-20070425.pdf

Ontologies

Ontology of Astronomical Object Types
text: WD_2007-02-19.pdf
OWL file (2008MAY16): ObjectTypes_0.99r.owl

SKOS to OWL script. Basic, but functioning
skosToOwl.xsl:

Semantics/UCD Sessions at Interop Meetings

Where & When	WG Session	Plenary & More
Madrid – Spain, May 2014	programme	–
Waikoloa – Hawai`i, USA, Sep 2013	Semantics & Education	–
Heidelberg – Germany, May 2013	Semantics & DCP	–
São Paulo – Brazil, Oct 2012	-	-
Urbana – USA, May 2012	programme	plenary
Pune – India, Oct 2011	programme	plenary
Naples – Italy, May 2011	programme	plenary
Nara – Japan, Dec 2010	programme	plenary
Victoria – Canada, May 2010	programme	plenary
Garching – Germany, Nov 2009	InterOpNov2009Sem	plenary
Strasbourg – France, May 2009	InterOpMay2009Semantics	plenary
Baltimore – USA, Oct 2008	InterOpOct2008Semantics	plenary
Trieste – Italy, May 2008	InterOpMay2008Semantics	plenary
Beijing – China, May 2007	InterOpMay2007Semantics	plenary
Victoria – Canada, May 2006	InterOpMay2006UCD	plenary
Madrid – Spain, Oct 2005	InterOpOct2005UCD	plenary
Kyoto – Japan, May 2005	InterOpMay2005UCD	plenary
Pune – India, September 2004	no formal UCD session	plenary
Cambridge, Mass. – USA, May 2004	InterOpMay2004UCD	plenary
Strasbourg, October 2003	InterOpOct2003UCD	ppt
Cambridge – UK, May 2003	InterOpMay2003UCD	.ppt, .pdf

'New Technologies' sessions

These aren't formally 'semantics' sessions, but they've been organised by the Semantics WG

Where & When	WG Session	Plenary & More
Madrid – Spain, May 2014	programme	–
Heidelberg – Germany, May 2013	programme	PDF

Old documents

Version 1.2 of the The UCD1+ controlled vocabulary : PR in the RFC period (till Nov 3 2006).
The RFC period is now closed. Comments (2) and answers can be found at the RFC page at UCDListRFC. Comments were accepted and the proposed slight changes were included in version 1.21 of the document : PR-version1.21. Slight changes following comments by WG/IG chairs were included in version 1.22 of the document: PR-version1.22
IVOA Vocabularies:, WD v0.11 pdf , html
The IVOA Standard Vocabulary (Processes, Object types, Instrumentation,..) Version 0.8 (20060505) : VO-standard-vocabulary_8.pdf
TN: Ontology of Astronomical Object Types, text: ObjectTypes.pdf, Javadoc files: OWLDOC-ObjectTypes.zip or OWLDOC-ObjectTypes_tar.gz
VO-standard-vocabulary Vers. 0.5 of 20051220 (.pdf)
UCDmaintenanceRFC
UCDListRFC
Electromagnetic spectrum division v0.3: .html, .pdf
Proposed revision (2003): UCD-1.9.9 (.pdf, .doc) and UCD-1.9.9b (.pdf, .doc)

Links

Semantics
- The EuroVO project, VOTech, had a work package DS5: Intelligent Resource Discovery which is focussed on developing astro semantics with the goal of making resource discovery and use more user-oriented. This area of VOTech is led by SebastienDerriere.
  - That page also has some useful links
UCDs
- The list of proposed RFM discussed in the WG can be found at UCDwordsRFM
- The web-based form for requesting a modification (RFM) of UCD words can be found at: http://cdsweb.u-strasbg.fr/UCD/cgi-bin/comment/ucdComments
- UCD page at CDS: http://cdsweb.u-strasbg.fr/UCD/
- Tools to find and build UCDs: http://cdsweb.u-strasbg.fr/UCD/cgi-bin/descr2ucd

WG Roadmap

Date	Event	status
Oct-2004	UCD1+ to PR (RFC)	done
May-2005	UCD-Tools	done
Jun-2005	Create Sci- and Tech-Boards	done
Jul-2005	UCD1+ word-list to PR(RFC)	done (RFC after holidays)
Jul-2005	UCD1+: PR to Recomm	done (in Aug, minor editing needed)
Oct-2005	UCD1+ word-list: PR to Recomm	in progress
Oct-2005	From UCDs to Semantics	proposed in Kyoto
Nov-2005	UCD1+ Words Maintenance	Working Draft
Dec-2005	UCD1+ word-list: Recomm	done (31Dec2005)
May-2006	UCD1+ Maintenance: Recomm	done (28May2006)
End-2006	Ontologies-TN	done (31Oct2006)
End-2006	Standard Vocabulary-TN	draft
Feb-2007	Ontology-WD?
Apr-2007	UCD1+ word-list: Recomm	(2Apr2007)
Oct-2007	Ontology-UseCase TN

Mailing-lists

General working-group discussion archive. See the UCD archive for discussion prior to June 20th, 2006.
UCD Scientific Board archive
UCD Technical Board archive.

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ObjectTypes_1.500.owl: Object Types ontology v1.5

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