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Theory Interest Group. Closing plenary Victoria, May 19 2006. Sessions I + II. Registry for theorists (Ray Plante) Characterisation for theorists (Mireille Louys) UCDs for theorists: computation namespace (Laurie Shaw) SSAP for theorists: TSAP (Pedro Osuna)

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theory interest group

Theory Interest Group

Closing plenary

Victoria, May 19 2006

Closing plenary

sessions i ii
Sessions I + II
  • Registry for theorists (Ray Plante)
  • Characterisation for theorists (Mireille Louys)
  • UCDs for theorists: computation namespace (Laurie Shaw)
  • SSAP for theorists: TSAP (Pedro Osuna)
  • DAL for theorists: Implementation of a SNAP-like service for the TVO (Claudio Gheller)

Closing plenary

main conclusion
Main conclusion
  • Registration onf non-standard services possible already now
  • Characterisation promising approach applicable to theory data.
  • Synthetic spectra TSAP:
    • Can be subsumed in SSAP if:
      • POS not required, if provided, return null result (same with SIZE, TIME)
      • FORMAT=METADATA (or request=getCapabilities) must remain
    • Registration possible
      • once registry accepts “SSA” as standard service type
      • and using type=SIMULATION to indicate theory data

Closing plenary

breakout session tuesday ucds
Breakout session Tuesday: UCDs
  • Discussion Tuesday afternoon with APM
  • Compile list of words, no classification yet into UCD vs Standard Word
  • Some structure, that might lead to such a classification
  • Working TWiki document on IVOA/TheorySemanticVocabulary
  • Plan: work this out further to come to proposal
    • List on TWiki open for two weeks after announcement email
    • Cross-check with existing list (Semantics/VOEvent/…)
    • Propose to Semantics WG
    • Longer term: use in data model for describing simulations (see there)

Closing plenary

breakout session wednesday data formats and snap
Breakout session Wednesday:Data formats and SNAP
  • Focus on intermediate and large scale simulations: particles and mesh in 3D space.
  • Issue: many proprietary formats
  • Services need to produce datasets users can understand
    • Straightforward choice: VOTable, possibly using BINARY data, possibly base64 encoded.
    • Alternative proposal: allow original file but force publisher to provide wrapper codelets to read the files and produce … what ?
  • Plans:
    • Sell VOTable+binary+base64 to theory community
    • Write prototype/template translators for some complex existing data types.
    • Go ahead with SNAP (DAL approved)

Closing plenary

what is snap
What is SNAP ?
  • Subject:
    • N-body
    • (adaptive) mesh
    • “evolving objects in 3D space”
  • Functions:
    • Retrieve whole
    • Retrieve part: Question, how to decide which part ?
    • Proposal: need functions creating small, summarising, meaningful info about the dataset. Examples: thumbnail, random sample, projection, gridding (for particles). (see CGs presentation)
  • Query: based on metadata model
  • Protocol: not discussed here, but initial draft exists. ADQL ?

Closing plenary

session iii thursday
Session III (Thursday)
  • Summary of work to date
  • Results:
    • Task group for Semantics UCD and Standard Vocab list
    • Task group for SNAP functionality protocol
    • Market proposals to theorists (task group + project contact persons) and get services registered
    • Volunteers to prototype UWS oslt for theory services

Closing plenary

breakout session friday modeling metadata
Breakout session Friday:Modeling metadata
  • Focus: describe SNAP-like simulations
    • N-body
    • (adaptive) mesh
    • “evolving objects in 3D space”
  • Subjects:
    • Physics, phenomenology (semantics)
    • Design and provenance
    • Characterisation
  • Use
    • SNAP service
    • Registration
  • Plan:
    • First get data dictionary (i.e. the standard vocab in semantics)
    • Conceptual, analysis model
    • Logical model
    • Serialisation/binding (XML, Java etc, Relational model (for ADQL))

Closing plenary

road map
Road map
  • Finish use cases note (on TWiki, June 2006)
  • TSAP ready to go ahead, dependency on SSA (standard) and on Registry (SSA type)
  • Generic service registration using standard vocab (outreach)
    • All the time
    • GL will contact project contact persons about this (next week)
  • Standard vocabulary/UCDs proposal for theory (End June 2006)
    • TWiki list open for two more weeks (half June 2006)
    • Work over with small group in following month and submit to Semantics (July 2006)
  • Data formats
    • Poll of theorists into their data formats and willingness to publish their data in specified manner (Dave Zuerk et al, Dave DeYoung, report by Moscow hopefully)
    • Volunteers will try translating some typical formats into VOTable+base64 binary data, report in Moscow.
  • SNAP (go ahead by DT)
    • Data model (pending approval?), discussion in Moscow
    • Protocol, discussion in Moscow
    • 0.5 (May 2007)
  • Other protocols, wait for stated desire
  • Service use in GWS-manner
    • Depends on GWS
    • Volunteers are there to wrap their existing services in any specified manner
  • Theory/Observational interface
    • Virtual telescope spec+prototype May 2008

Closing plenary

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