InterOpNov2009Sem < IVOA

IVOA Web>IvoaEvents>InterOpNov2009>InterOpNov2009Sem (2009-11-12, SebastienDerriere) (raw view)

(back to main program page InterOpNov2009#Program)

---+ Plenary introduction
Monday --Aud

Slides here


---+ Semantics Session at the [[IVOA.InterOpNov2009][November 2009 Interop Meeting]]

Wednesday 09.00-10.30 -- ESO Council Room


<br/>

---++ Semantics Session: Preliminary Schedule
| *Speaker*  |  *Title*  |  *Time*  | 
| | | |
| Sebastien Derriere  | Introduction      | 09:00 |   
| | Vocabularies [[%ATTACHURL%/semantics_session.pdf][.pdf]] | 09:10 |
| | Voc for VOEvent | | |
| | Voc for Charac Obs DM | | |
| | Semantic annotations in web documents | 09:45 | |
| Norman Gray| Future of Semantics WG| 10:00 | |
| | | | |

---++Semantics session notes :


   * Vocabularies document
      * Became a REC in October 2009
      * There are five implementations
   * Vocabulary mapping
      * Explicator application http://explicator.dcs.gla.ac.uk/code/
      * For example used to declare mappings of Vizier keywords to journal keywords
      * Mapping is critical
      * The reference vocabularies do NOT contain mappings (they are in external files)
      * Rick: journals could force authors to add keywords to published tables
         * have a tool producing tables with proper description and Latex ?
      * Matthew: include vocabulary terms in ontology files or not?
   * Rick: we need a document describing how to create vocabularies in practice
      * Sebastien: there is a [[RegistryGuide][guide for registry users]]. This could serve as a model for a Vocabularies 'howto'
      * Perhaps produce such a document after someone has gone through the process.  For example, the VOEvent people
      * Catalina use a very small vocabulary
      * Rick: start such a guide on an IVOA wiki page
   * Matthew: VOEvent 'why' sections aren't currently being used
      * Maybe this is a chicken-and-egg problem
      * Expect to get takeup later
   * Vocabularies WG support other WGs
      * how?
      * Need expressed from VOEvent, Char'n DM, <nop>ObsTAP, Registry/VOResources
      * Matthew: Data Mining IG aims to produce an ontology of data mining tasks, suitable for some sort of Semantic Web Services
   * Vocabularies in the registry
      * Various people have looked at this problem, though not in a great deal of detail
      * Sebastien: some registry subject entries are remarkably useless!
      * Possibly develop a 'dictionary' service, which helps users find vocabulary definitions (building on the definitions and scope notes within the SKOS file) : just a matter of code!
   * Matthew : parsing astronomical telegrams : what's in there ?
   * RDFa for astronomers
      * Illustrating including SAMP properties within an HTML page
      * eg: a samp.coord.pointAt.sky element
   * Vocabulary development
      * Mediawiki http://vocabularies.referata.com
      * Possible to output RDF, and then have SKOS
      * Norman/Stuart will put IVOAT (from Rick) and VOEvent (from Matthew) on http://referata.com
      * Rick: publish Utype data models on our own initiative
      * Rick suggested that it would be useful to make the wiki page as basic as possible.  But as it's currently hosted (on referata.com) there's a limit to what we can customise
      * These services could potentially be hosted on an amazon EC2 instance (USD 0.10/instance/hour -> USD 876.60 /year)
         * be careful with bandwith cost too!


---+ Session summary
Thursday -- Aud 14:00

Slides

<br/>
<!--
      * Set ALLOWTOPICRENAME = IVOA.TWikiAdminGroup
-->

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
pdf	semantics_session.pdf	r1	manage	285.5 K	2009-11-11 - 08:07	SebastienDerriere	Slides for semantic session

Topic revision: r3 - 2009-11-12 - SebastienDerriere

IVOA

Log in or Register

IVOA.net
Wiki Home
WebChanges
WebTopicList
WebStatistics

Twiki Meta & Help
IVOA
Know
Main
Sandbox
TWiki

TWiki intro
TWiki tutorial
User registration
Notify me

Working Groups

Interest Groups

Time Domain

Committees

Stds&Procs

www.ivoa.net
Documents
Events
Members
XML Schema