DCP Session minutes (thanks to Tim)

FranÁoise, Trustworthy Data Repositories

  • Certification of data centers.
  • CDS got certified.
  • Useful because of the feedback from experts.
  • CoreTrustSeal preferred (ISO too expensive)
  • Strongly feel that certification is really important.

Andrť, Tim: DOI Note status

  • ADASS BoF had follow up session on DOIs.
  • Had meetings with AAS, Planetary Data and Chandra on DOIs.
  • Sent round survey asking about DOI usage.
  • Aim to release draft at Groningen meeting.
  • DOI best practices in astronomy.

Q: DOIs are primitive, arenít we really talking about data publication best practices?

A: Survey should determine what we are covering.

Raffaele: Chandra

  • Chandra migrating to persistent identifiers.
  • All papers using Chandra data should be tied to the original datasets.
  • Metrics then used to demonstrate that the archive is being used.
  • Were always required to use persistent identifiers but now switching to Datacite DOIs.
  • Want to know how much data is used for different types of publications.
  • Continually have to follow up on authors to make sure they include identifiers.
  • Can track evolution of archive usage.
  • Can also try to track when multiple datasets from different missions are combined.
  • Collection pages link paper to multiple datasets.
  • Detailed metadata plan.
  • Using DataCite metadata schema 4.1 but still needs work for astronomy.
  • Need to mint 40,000 DOIs to backfill archive.
  • Why does obscore mandata IVO identifiers and doesnít allow use of DOI.

Sťverin: CADC Self-serve DOIs

  • Wanting to publish data that they have generated for their paper.
  • Cross-linking data to a paper.
  • Initially minting DOIs manually (on request) since 2013.
  • Self-serve since March 2019.
  • Publishing of VOSpace areas.
  • Files are locked once minted.
  • System set up to allow paper reviewers to see the data before minting.
  • Built on top of VO services.

Q: Are there constraints on what can be stored for minting?

A: No. Whatever author wants to put in there to be associated with the paper.

Q: How do you track raw data holdings usages?

A: CADC arenít required to do so. Telescopes themselves care more about data usage.

Q: Where is the code?

A: Should be open source. Will make sure itís available.

Yihan : PaperData Updates

  • China-VO systems for uploading data use for journal publications to get DOIs.
  • Issuing IVOID and DOI.
  • Requires that the paper has been accepted before a DOI is issued and the metadata is complete and true.
  • Once DOI issued everything is locked.
  • Versioned DOIs are supported.
  • Compliant with AAS Journals rules.

Q: Can a DOI be reserved before acceptance of paper?

A: Not in plan at the moment.

Deborah : ESA Science Archives DOI plans

  • ESA can issue DOIs using 10.5270
  • Already issue DOIs for missions and space craft for Earth observation.
  • Really want to make it easy to link data to papers.
  • ESA DOIs refer to current best calibrated version of data. No new DOI if calibration improves.
  • DOIs deliberately opaque so that people canít guess what they mean
  • Not even sequential.
  • Formal Data releases do get DOIs.
  • Each proposal collection gets a DOI ó not individual observations.
  • Proposing to mint DOIs from selecting observations from archive (as MAST do already).
  • DOIs for high level science products uploaded back to ESA.

Q: I donít understand the single DOI even if recalibrated. This seems to go against the definition of DOI.

A: We donít have the older calibrations of Herschel for example.

Q: Why not deprecate the original DOI pointing to a new DOI? There is no way to reproduce a paper if the calibrated data have changed.

David: RDA as relevant to DCP

  • RDA is a Multi-disciplinary organization on data management infrastructure.
  • Helpful to monitor where RDA is going.
  • Usually very high level abstractions of topics.
  • RDA is a place where you could look for relevant outputs that represent useful thinking on your subject.
  • Data citation of evolving data.
  • Prefer to archive the query rather than the data itself. The query must be able to reflect the date that the query is relevant for.
  • This is not always possible in astronomy.

Q: Zwolf has implemented a version of the evolving data citation system.

Q: In planetary science you only get DOI to full dataset and canít specify a subset for your paper.

Carlo Maria: RDA Federation Identity Management & usage in VAMDC

  • Aim is to remove obstacles to research by dealing with federated identity.
  • Try to track an individual even if they move institutions.
  • VAMDC integrated with Scholix and Zenodo.

Q: Please respond to the DOI survey.


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