- From: Carl Anderson <carl.anderson@vadose.org>
- Date: Tue, 27 May 2014 12:21:03 -0400
- To: Gannon Dick <gannon_dick@yahoo.com>
- Cc: karlg@stanford.edu, raphael.troncy@eurecom.fr, Simon.Cox@csiro.au, janowicz@ucsb.edu, public-locadd@w3.org, pascal.hitzler@wright.edu, adams@nceas.ucsb.edu, Julie Binder Maitra <jmaitra@usgs.gov>, Lynda Liptrap <lynda.a.liptrap@census.gov>
- Message-ID: <CAAuwKSwKLwo3pdVmKUAFO61JCkSSU77fpGsmAEPnAxWs386dMA@mail.gmail.com>
I had not seen any mention of this FGDC standard in the thread. It attempts to deal with describing time and space and uncertainties in inherent in both. http://www.fgdc.gov/standards/news/TSPI Carl. On Tue, May 27, 2014 at 12:08 PM, Gannon Dick <gannon_dick@yahoo.com> wrote: > Hello Simon, > > Thank you. This is very helpful. > > In a previous email I referred to the W3C time ontology as Surveillance > Society Junk. I was suprised (myself least of all, and epic-ally so) that > the message was lost in transit. I had in mind the problem of decrementing > the calendar through strata and the related problem of incrementing the > calendar with dynamic discovey (defining the strata boundaries as you go > along). > > Partial processing of RDF/SKOS style lists is more than unhelpful in this > regard as it calls into question the efficacy of OWL for scientific > pursuits. > > --Gannon > -------------------------------------------- > On Tue, 5/27/14, Simon.Cox@csiro.au <Simon.Cox@csiro.au> wrote: > > Subject: RE: space and time > To: karlg@stanford.edu, raphael.troncy@eurecom.fr > Cc: janowicz@ucsb.edu, public-locadd@w3.org, pascal.hitzler@wright.edu, > adams@nceas.ucsb.edu > Date: Tuesday, May 27, 2014, 12:38 AM > > Karl - > > I note that some of your historical application examples use > a temporal reference system that is based on ordered > sequences of named periods. These may be modelled as a > (constrained) temporal topology, which may be related to a > temporal coordinate system, but is often used independently. > As I implied in my earlier message to this list, that is a > situation that also applies in archaeology and geology. > While there are certainly differences in practice between > these disciplines, the general principle is common. The > standard time ontologies (particularly W3 Time) do not > support this case. > > There is a more comprehensive, but still flawed, treatment > of temporal reference systems in ISO 19108, which we > critiqued in a paper published in 2005 > http://dx.doi.org/10.1130/GES00022.1 > More recently we have developed an OWL implementation, > described in a paper in press in Earth Science Informatics, > and available at http://resource.geosciml.org/ontology/timescale/thors > which is aligned with both the ISO 19108 Temporal Topology > and Temporal Reference System models (with a geological > extension at http://resource.geosciml.org/ontology/timescale/gts ) > > Possibly of interest. > > Simon Cox > > > > -----Original Message----- > From: Karl Grossner [mailto:karlg@stanford.edu] > > Sent: Monday, 26 May 2014 2:29 AM > To: Raphaël Troncy > Cc: janowicz@ucsb.edu; > public-locadd@w3.org; > Pascal Hitzler; Ben Adams > Subject: Re: space and time > > Krzysztof, Raphaël - > > Academic publication time-frames drive me crazy. I have > placed an excerpt from our chapter-in-review on my web site > so list members who have an interest can read it. The > chapter is about Linked Data for historical gazetteers and > the pattern discussion comes in Section 3. As Krzysztof > says, it is an informal introduction. > > http://kgeographer.com/assets/GrossnerJanowiczKessler_excerpt.pdf > > > This discussion is of great interest. Yes, there is now an > effort at a new GeoJSON-LD standard, and I have > co-instigated getting time into it (not into core GeoJSON; > that idea has been rejected by its keepers). > > I should also note my recent work with Elijah Meeks on > Topotime (http://dh.stanford.edu/topotime) > > People's views about the urgency of somehow joining spatial > and temporal seem to vary depending on the use cases they > deal with the most. I work in historical applications and > see the joining as essential. > > Regarding the observation that any data _could_ have a > temporal dimension so why favor spatial, I would say this: > it's not about adding temporality to widget data, it's about > the opportunity to include temporal with spatial if you're > representing widget locations. > > The location of a thing or event/period is in fact spatial > and temporal whether or not we care about both aspects in a > given situation. A general data model should account for the > essential characteristics of what it models! In the case of > GeoJSON-LD, a Feature will have an optional "when" object at > the same level as the "geometry" object. Existing software > that parses GeoJSON will ignore the "when" (as well as the > @context), but applications can be written to process it. > > I'm not thrilled with how GeoJSON-LD is shaping up but do > consider it making time a co-equal aspect with space in > answers to "where?" a significant step forward. > > cheers, Karl > > > ------------------ > Karl Grossner, PhD > Digital Humanities Research Developer > Stanford University Libraries > Stanford,CA US > www.kgeographer.org > > > ----- Original Message ----- > > Dear Krzysztof, > > > > > If you are interested in a tight integration of > space and time, we > > > are currently working on a so-called 'settings' > ontology design > > > pattern that does exactly that. It was developed > during the last > > > Geo-VoCamp in Santa Barbara in March 2014. We also > have a more > > > informal piece about this that is currently under > review (I am > > > cc-ing Karl Grossner in case he wants to share the > draft) > > > > Are you saying that this work is being currently > peer-reviewed? I > > would definitively be interested in reading the draft > and/or the > > summary of the March Geo-VoCamp (any pointers?) but I > understand you > > might not be able to share it just right now. > > Best regards. > > > > Raphaël > > > > -- > > Raphaël Troncy > > EURECOM, Campus SophiaTech > > Multimedia Communications Department > > 450 route des Chappes, 06410 Biot, France. > > e-mail: raphael.troncy@eurecom.fr > & raphael.troncy@gmail.com > > Tel: +33 (0)4 - 9300 8242 > > Fax: +33 (0)4 - 9000 8200 > > Web: http://www.eurecom.fr/~troncy/ > > > > > > > > > >
Received on Wednesday, 28 May 2014 08:21:47 UTC