Re: [Moderator Action] RE: Some background on Extended Date Time Format (EDTF) (was: ISSUE 14: temporal reasoning and relations)

To avoid doubt, the meeting starts at
http://www.timeanddate.com/worldclock/fixedtime.html?msg=SDWWG+Call&iso=20150916T12&ah=1

and the meeting as a whole lasts 2 hours.

HTH

Phil.

On 15/09/2015 14:26, Denenberg, Ray wrote:
> Kerry – I want to be completely  sure I’m clear on the time.  Your reference to “5 AM” is for US West Coast I presume  and for me (in Washington DC (US East Coast) that would be 8 AM.  Please let me know if I’ve miscalculated. --Ray
>
> From: Kerry Taylor [mailto:kerry.lea.taylor@gmail.com]
> Sent: Monday, September 14, 2015 5:57 PM
> To: Denenberg, Ray
> Cc: Kerry Taylor; Svensson, Lars; public-sdw-wg@w3.org; Ed Parsons
> Subject: Re: Some background on Extended Date Time Format (EDTF) (was: ISSUE 14: temporal reasoning and relations)
>
> Ray,
> About an hour will be spent on the time topic --the first hour. Please do stay for that if you can as we would appreciate your participation in discussion, but we will be covering other topics for the second hour. I am not sure of the running order -- probably the owl-time presentation could come first. You could certainly be excused for coming in a bit later than 5am if you wish, as we can be flexible on the day.
> Thanks in advance!
> Kerry
>
> On 15 Sep 2015, at 3:38 am, "Denenberg, Ray" <rden@loc.gov<mailto:rden@loc.gov>> wrote:
> Hi Kerry -  Just so I am sure I understand, I should prepare a 10-minute presentation, right?  (Ten minutes will be plenty of time to cover the basics, and I can follow-up with a more in-depth presentation at a later date if there is interest.)
>
> The meeting will be two hours. Should I plan to join for the entire two hours?  If not, please tell me what would be a good time to call in.  (The later the better for me.)
>
> Thanks.
>
> Ray
>
> From: Kerry Taylor [mailto:Kerry.Taylor@acm.org]
> Sent: Friday, September 11, 2015 9:14 PM
> To: Svensson, Lars; Denenberg, Ray
> Cc: public-sdw-wg@w3.org<mailto:public-sdw-wg@w3.org>; Ed Parsons
> Subject: Re: Some background on Extended Date Time Format (EDTF) (was: ISSUE 14: temporal reasoning and relations)
>
> Thanks Lars.  ( Btw my email to you seems to always bounce after a few days of delay, but this should be visible to you via the public list, at least).
>
> Ray, thank you for your kind offer to join us and to present on EDTF.
>   The meeting will be conducted via webex and irc. You can see the how-to here.  https://www.w3.org/2015/spatial/wiki/Meetings#Dial_in_details
> Note that on the coming Wednesday we will have a 2hour meeting, commencing an hour earlier than usual, and there will be a bunch of people meeting in person in Keyworth (Nottingham) UK.   The agenda for the meeting, is posted to this     https://lists.w3.org/Archives/Public/public-sdw-wg/  list at least 24 hours  ahead.
>
> Kerry
>
>
> On 11 Sep 2015, at 9:23 pm, "Svensson, Lars" <L.Svensson@dnb.de<mailto:L.Svensson@dnb.de>> wrote:
> Kerry,
>
> I didn't get a formal action for this, but Ray is prepared to give a ten minute WebEx presentation on EDTF on Wednesday next week. Is there a specific process for inviting him to the online meeting?
>
> Regarding the timing of his presentation I think it's easier for you to clarify that bilaterally.
>
> Best,
>
> Lars
>
> *** Lesen. Hören. Wissen. Deutsche Nationalbibliothek ***
> --
> Dr. Lars G. Svensson
> Deutsche Nationalbibliothek
> Informationsinfrastruktur und Bestanderhaltung
> Adickesallee 1
> D-60322 Frankfurt am Main
> Telefon: +49-69-1525-1752
> Telefax: +49-69-1525-1799
> mailto:l.svensson@dnb.de
> http://www.dnb.de
>
>
>
>
> -----Original Message-----
> From: Svensson, Lars
> Sent: Tuesday, September 08, 2015 9:24 PM
> To: public-sdw-wg@w3.org<mailto:public-sdw-wg@w3.org>
> Cc: Denenberg, Ray <rden@LOC.GOV<mailto:rden@LOC.GOV>> (rden@LOC.GOV<mailto:rden@LOC.GOV>)
> Subject: Some background on Extended Date Time Format (EDTF) (was:
> ISSUE 14: temporal reasoning and relations)
>
> All,
>
> On Wednesday, August 12, 2015 4:58 PM, Karl Grossner wrote:
>
> [...]
> **************
> Further support for uncertain temporal expressions-- Contributed by Karl
> Grossner <https://kgeographer.org> 2015-08-11
>
> OWL-Time does support some uncertain expressions by means of interval
> relations accounting for "before," "after," (sometime) "during," etc. It
> does not allow for approximate and vague expressions such as "circa 560
> CE" or "sometime in the early 1920's." These could be covered in two ways:
>
> 1. by allowing a '~' operator to accompany any ISO-8601 expression
>
> 2. by allowing the hasBeginning and hasEnd elements to be specified by
> intervals as well as by instants
>
> e.g. the object of a hasEnd property could be an interval having
> earliestEnd and latestEnd properties
> A number of further OWL-Time extensions, such as adding an "uncertain"
> operator ('?') to '~', for an entire ISO-8601 expression or parts thereof,
> are proposed in the fairly recent US Library of Congress document,
> **"Extended Date/Time Format (EDTF) 1.0”**
> <http://www.loc.gov/standards/datetime/pre-submission.html>
>
> I've been in touch with Ray Denenberg from the Library of Congress (in cc)
> who is the primary editor of EDTF. He gave me some valuable background
> information on the document and allowed me to share that with the WG.
>
> EDTF was developed on the request of Rebecca Guenther from the Library of
> Congress (LoC) who wanted a date/time format more friendly to library
> requirements. After the spec was published in its current form (2012-01-13) it
> was submitted to the W3C as a member submission (LoC is a W3C member)
> with the primary goal to make EDTF become a primitive data type (e. g.
> xs:edtf). The W3C rejected it as out of scope.
>
> Ray then approached ISO and after quite some time he got the attention of
> TC154 where ISO 8601 resides. Timing was good, because they recently
> convened a working group for "8601 part 2", essentially extensions to 8601.
> Ray is on that group and on their conference calls much of the discussion has
> been about EDTF. The group seems to be willing to incorporate most or all of
> EDTF into 8601 part 2. Ray would want EDTF to be a profile of 8601 (he has
> introduced the notion of "profile" into the discussion) and that only works if
> the features of EDTF are all in 8601. A first draft of 8601 part 2 should be
> available in March 2016.
>
> Ray is definitely willing to work with us to see that the SDWWG requirements
> are reflected in EDTF and he also suggests that someone from the group gets
> involved in the TC154 work.
>
> My suggestion is that we invite Ray to one of the Wednesday telcos where
> he can present EDTF to the group. As Ray, I find it a bit astonishing that the
> W3C turned down the member submission (but I'm sure they had their
> reasons for it). If we decide that EDTF can solve some of our requirements, I
> think we should help to move the document forward (and if we want to use
> the format on the web, we definitely need a datatype).
>
> Perhaps we can find a few minutes to talk about this tomorrow.
>
> Best,
>
> Lars
>

-- 


Phil Archer
W3C Data Activity Lead
http://www.w3.org/2013/data/

http://philarcher.org
+44 (0)7887 767755
@philarcher1

Received on Tuesday, 15 September 2015 13:28:45 UTC