- From: Phil Archer <phila@w3.org>
- Date: Wed, 26 Oct 2016 22:06:09 +0100
- To: SDW WG Public List <public-sdw-wg@w3.org>
And the last one this week... the minutes of the Coverages call are at
https://www.w3.org/2016/10/26-sdwcov-minutes with a text snapshot below.
There's a lot going on here - expect not one but three docs to be
published before Christmas.
Spatial Data on the Web Coverages Sub Group Teleconference
26 Oct 2016
[2]Agenda
[2]
https://www.w3.org/2015/spatial/wiki/Meetings:Coverage-Telecon20161026
See also: [3]IRC log
[3] http://www.w3.org/2016/10/26-sdwcov-irc
Attendees
Present
scribe, dmitrybrizhinev, ScottSimmons, billroberts,
kerry
Regrets
Chair
Bill
Scribe
phila
Contents
* [4]Topics
1. [5]Preliminaries
2. [6]Progress on eo-qb
3. [7]QB4ST
4. [8]Coverage JSON
5. [9]AOB?
* [10]Summary of Action Items
* [11]Summary of Resolutions
__________________________________________________________
<scribe> scribe: phila
<scribe> scribeNick: phila
Preliminaries
-> [12]https://www.w3.org/2016/10/12-sdwcov-minutes Last
meeting's minutes
[12] https://www.w3.org/2016/10/12-sdwcov-minutes
NOTUC?
No objection to unanimous consensus?
<joshlieberman> ...consent, but close enough
RESOLUTION: Minutes of 12 Oct accepted
<billroberts>
[13]https://www.w3.org/2015/spatial/wiki/Patent_Call
[13] https://www.w3.org/2015/spatial/wiki/Patent_Call
<billroberts>
[14]https://www.w3.org/2015/spatial/wiki/Meetings:Coverage-Tele
con20161026
[14]
https://www.w3.org/2015/spatial/wiki/Meetings:Coverage-Telecon20161026
Progress on eo-qb
-> [15]http://w3c.github.io/sdw/eo-qb/ EO-QB
[15] http://w3c.github.io/sdw/eo-qb/
dmitrybrizhinev: It's coming along.There are some improvements.
Not sure what changes since we last spoke.
... Has some turtle examples
... Interested in what Rob is doing with QB4ST
... Also looking to add in some descriptions of our
implementations
... I want to read the BP, Time and SSN docs to see if there's
stuff that should be references
billroberts: Rob isn't here today but I see he added an update
to his wiki page over the weekend
... and if you haven't seen it recently, see that. There are
also egs in his GH repo
dmitrybrizhinev: We met him last week and we're clarifying what
we're both doing.
billroberts: I was going to ask about that.
... A couple of Qs. Is there help that you need?
... Help that isn't already lined up?
dmitrybrizhinev: I don't have immediate questions right now
... Will ask on the list.
billroberts: The offer is there.
... Also, to ask at what point will it make sense for me and
others to do a proper review?
... i.e. nearly finished enough for detailed feedback?
dmitrybrizhinev: I expect about the new year should be a good
time.
<roba> sorry i'm late..
<billroberts> hi Rob - welcome, and no problem
kerry: I think we could ... provided we could fill in some of
the ontology ... I would suggest feedback wold be valuable much
sooner.
... It's an example that covers a lot of what's going on in the
group. It has SSN, Prov, OWL-Time
... and hopefully some BPs as well.
... So for that reason, I think it wojld benefit from more
exposure before New Year.
... I think we'll have enough for a FPWD before January. Maybe
1st week of December
dmitrybrizhinev: My exams are done by mid Nov
kerry: Australians can take a bit of a breather
... I think aiming for a publication before Christmas makes
sense all round.
billroberts: That sounds good to me. I think it's shaping up
nicely, esp how other ontologies fit in.
... I've added it to my To Do list
kerry: It needs the middleware explanation.
... A Q for Phil - the code etc. is all in GH, not in w3 space
... and a related Q - the application.
... On stability. This is a Note, but we can't maintain it
beyond a year.
<Zakim> phila, you wanted to ask about FPWD
<billroberts> phila: dmitry - there's a lot of good work in
here already. It's already pretty much complete enough for FWPD
<billroberts> ...apart from minor things like acknowledgements
etc
<billroberts> ...If there are open issues, then add them in to
the document
<billroberts> ...it's better to publish early
<billroberts> ...So seems feasible to get FWPD out in December.
That doesn't mean it's finished, but gives people early
visibility of what we are working on
<billroberts> ...and question to Kerry: is there an example web
application that goes wtih this?
<billroberts> kerry: yes there is a web app that uses the
example data (and much more)
<billroberts> phila: a publication in TR-space (which includes
Notes) needs to have all supporting material in the same
directory, which often means making multiple copies of shared
resources
<billroberts> ...the document should include screenshots and a
description, plus a link to the app itself
<billroberts> ...it's ok that the application won't be
maintained indefinitely
<billroberts> ...but the document itself should be meaningful
and readable 50 years from now
<billroberts> ...For example, our own BP document
-> [16]https://www.w3.org/TR/2016/WD-sdw-bp-20160119/ FPWD of
the BP doc
[16] https://www.w3.org/TR/2016/WD-sdw-bp-20160119/
<billroberts> phila: see that this includes lots of links to
open issues
<billroberts> phila: Scott, anything different for OGC?
<billroberts> ScottSimmons: same at OGC
billroberts: I saw Rob on the queue
QB4ST
roba: I've bvegun working it into the Note format
... I've revamped the ontology following a discussion with
Kerry down in Canberra
... I hope by the end of this week to have pushed something out
for internal review
... I'd like to aim for a FWPD at the same time as EO-QB as
they cross reference each other
... I need more eyes on the ontology
... especially on the OWL entailment.
billroberts: So you reckon your stuff will be ready for some
review by the WG?
kerry: Phil missed a question
... Do yo want the code in a W3 GH?
billroberts: Anything more, Rob, to add?
roba: Not really. I've started the process of creating an LD
resource to back this up.
... There will be stuff to review.
... Some is normative to the Note, some is more explanatory
<ScottSimmons> * apologies all, I now get the great pleasure of
visiting my dentist - coverages are far more interesting
<billroberts> phila: documents that show cool things you did
with the material from a W3C Note can probably go in your own
space
<billroberts> ...W3 doesn't have anything better or more
permanent than that
roba: The QB4ST Note is very short, it's just an ontology
<billroberts>
[17]https://www.w3.org/2015/spatial/wiki/RDF_Datacube_for_Cover
ages
[17] https://www.w3.org/2015/spatial/wiki/RDF_Datacube_for_Coverages
<billroberts> phila: W3 can provide a namespace for the
ontology, and hosting a test suite etc
<billroberts> ...running code and detailed examples can go best
in your own space
<billroberts> ...stable building blocks fit well at W3C
<billroberts> phila: it's fine for it to be in teh
opengeospatial space too
<billroberts> ...so can just leave it there
<billroberts> roba: this is a building block for EO-QB not a
primer for it
kerry: Another idea... we tried to get this on last week's
plenary agenda. They're not really aware of this work coming
along so need some internal dissemination.
... Maybe some of this could go into the spatial ontology that
Josh is working on.
... It's being used in the EO-QB as well. Maybe it gets wrapped
into that doc.
Josh: Prob the best way for the spatial ontology is to update
GeoSPARQL.
... I created it as an update of GeoSPARQL as I needed to base
other thinbgs on it
... We needed a basic spatial ontology to base both the BPs and
other efforts on
... It;s a general spatial ontology. It's currently in my own
namespace. I've discussed it with Scott.
... I could put a Note together. It makes more sense to us for
it to be an OGC doc referenced by the work here.
... I'm open to otehr methods but that seems the consensus way.
kerry: If it goes that way, good.
roba: I had a chat with Josh. The first version had a
dependency on Josh's interim version.
... I took a leaf from the SSN modularisation discussion. For
the very few concepts from there, I've calle edthem out and
created a local place holder in the QB4ST namespace but it says
oit's meant to be aloigned with the general spatial ontology
... We don't wante a hard dependency on something whose status
is currently unknown.
Josh: I think its largely a timing problem. Ideally, QB4ST will
import GeoSP2
roba: I'm happy tpo take guidance from the community of course.
Josh: SO one of the issues it trying to help other people do
the right thing. The difficulty with using the basic Geo is
that there are several incompatibilities with the OGC/ISO
methods
... We can map it, but it would be good not to start with that.
... Start with something broader.
... We can have a basic but fairly complete spatial ontology.
Multiple and identifiable geometries, CRSs etc.
... I don't think we have time for a CRS ontology.
... There's an effort by Natalie at IGN to do that. Making good
on the idea that the application of a lot of these depends on
getting hte CRS right.
billroberts: Is there already something that we can see?
Josh: The OWl and Turtle files are available
<joshlieberman> [18]http://geosemweb.org/sdwgeo
[18] http://geosemweb.org/sdwgeo
joshlieberman: I started out having this in Web Protoge but I
gave up on that in the end. I'm working on the documentation
that isn't in the ontology itself
<Zakim> phila, you wanted to talk about IANA
->
[19]http://www.iana.org/assignments/link-relations/link-relatio
ns.xhtml IANA Link registry
[19]
http://www.iana.org/assignments/link-relations/link-relations.xhtml
<roba> qb4st imports OWL-Time (updates) now - but OWL
expressivity for temporal being possibly a "coded" dimension as
well is going to take some thought..
[Discussion about getting spatial and temporal relations into
the Link Registry]
Coverage JSON
billroberts: Not much to report ad Jon is working on finalising
his project. But last time I spoke to him he thought end
November was a good time line to have that out.
... No real progress in last 2 weeks
phila: So we're looking at getting the 3 docs out together
before Christmas
AOB?
roba: Just one more thing... I'd be happy to take other
contributors on board for QBST
billroberts: Things generally go better as a team effort.
kerry: I'd like to volunteer but I daren't. I can try but don't
bank on it.
billroberts: Given that people don't always read these minutes
in detail, might be worth putting a call out to the mailing
list.
roba: I'll get the first cut of the Note in the right format.
<kerry> thankyou bye!
<roba> bye
Summary of Action Items
Summary of Resolutions
1. [20]Minutes of 12 Oct accepted
[End of minutes]
__________________________________________________________
Received on Wednesday, 26 October 2016 21:06:10 UTC