Persistent Identifiers for Earth Science Provenance
Speaker: Curt Tilmes
Start: Wednesday, February 25, 2009, 10:00AM
End: Wednesday, February 25, 2009, 11:30AM
Location: ITE 325
Historically, published scientific research could include a
description of an experiment that an independent party could use to
reproduce the experiment with the same results, confirming the
research. Modern research in the field of earth science often depends
on terrabytes of data captured from remote sensing instruments,
complex computer algorithms that undergo numerous changes over the
year. A single result could be the result of the work of hundreds of
individuals over decades. The representation of the measurements,
algorithms and all the other artifacts of experimentation leading to
that result becomes a daunting problem. A key to handling this
representation is a good scheme for persisent identifiers.
Persistent identifiers seem like a simple problem. Just make a good
URL and don't change it. This sounds good in theory, but is
difficult to maintain forever. Many other schemes have been proposed
to attack various aspects of the problem of identification, with
various advantages and disadvantages. I will introduce this topic and
briefly describe some of the concerns with using identifiers
specifically in the context described above, and some of the
characteristics of various identifier schemes.
 "Cool URIs Don't Change." http://www.w3.org/Provider/Style/URI
Some identifier schemes:
 "Naming and Addressing: URIs, URLs, ..." http://www.w3.org/Addressing/
 "Object Identifer (OID)" http://www.oid-info.com/
 "The Digital Object Identifier (DOI) System." http://www.doi.org/
 "Persistent Uniform Resource Locator" http://purl.org/
 " A Universally Unique IDentifier (UUID) URN Namespace"
 "XRI (Extensible Resource Identifier)"
 "ARK (Archival Resource Key)"
The talk is available live on http://www.ustream.tv/channel/umbc-ebiquity-meeting
Web Site: http://ebiquity.umbc.edu/
- (Event) Persistent Identifiers for Earth Science Provenance has (Resource) Persistent Identifiers for Earth Science Provenance.