Spatial Data on the Web Working Group Teleconference

<trackbot> Date: 20 May 2015

<Frans> No scribe to record that action!

<scribe> scribe: eparsons

<kerry> http://www.w3.org/2015/05/13-sdw-minutes.html

<Frans> +1

<PhilippeThiran> +1

<billroberts> +1

Ed +1

<ErichBremer> +1

<Ian_Holt> +1

<Linda> +1

<DanhLePhuoc> +1

<LarsG> +1

<Alejandro_Llaves> +1

Resolved

<kerry> ttps://www.w3.org/2015/spatial/wiki/Patent_Call

Kerry: patent call

<kerry> resolved: accept last weeks minutes

Kerry: Test of webex from Frans..

Frans: Press "Share my screen and chose app"
... Also able to share single window..

<billroberts> looks good to me

<AZ> I see all the window fine

<MattPerry> I can see it

<Linda> looks good

<Rachel> looks fine for me

Frans: Presentation - publication of 700m triple dataset
... Metadata exposed as html metadata witch spatial aspects
... Spatial data uses Dublin core location subject, not at best practice as such could be standardised ?
... Spatial coverage predicate used - extent as geometry as GeoSparql
... Geometry expressed as Lat/long in WGS84 transformed from Dutch National Grid
... Current standard prefer WGS84 it seems ( Default ? )
... WKT needs CRS ref to be stripped
... WGS84 OK for this applications level of accuracy - Higher accuracy cm's would be difficult !!
... Need to indicate type of data e.g. Vector
... Need to also express resilution
... Not currently possible would be useful..
... Metadata also includes sparql endpoint so possible to querry
... Geometry allows geocoding...
... Spatial functions supported including creation of a point from Coordinates - could be used for a "where am I" app on a mobile phone
... Use of Virtuoso tool has some limitations
... Demo of query to return addresses with postal code - uses semantics from BAG vocab

<ErichBremer> Any thought to relative spatial data? For example, a symbolic WKT polygon that uses URIs of things as coordinates and that the actual coordinates are attached to those URIs instead of coded onto the WKT string itself?

Frans: Demo of query of global semantics alongside national vocab based semantics

Kerry: Questions

<ErichBremer> see mine

ErichBremer: Relative spatial data URL's as coordinates ?

Frans: This would be a mutation is coords changed - new object

Kerry: URI for everypoint ?

ErichBremer: No URI attached to triangle symbolic link

billroberts: Nice illustration - lots of ways to express spatial in RDF - but too many !!
... How to chose whats appropriate is a challenge

Kerry: Quality of presso ?

<ErichBremer> and link to the data?

aharth: Nice to have presentation linked to wiki

kerry: important for people who can't get webex to work

<Linda> http://lod.geodan.nl/basisreg/bag/

Use case timeline to First Public Working Draft

Kerry: Agenda switch - use case timeline propsoal
... Need to move fwd on use cases need help from group to complete
... Dedicate next meeting to this.. 3rd June vote to progress doc to first public working draft
... This has more status
... Group needs to agree to this - as we take ownership of it at this point

<AZ> A FPWD has a permanent URL and a fixed date of publication, while an ED has one URL for a document that changes all the time

Kerry: Allows us to move on to BP Doc
... According to charter already a year late :-)
... Think this is achievable any comments ?

<kerry> topic; Use Case Actions

use case actions

Kerry: Lots of Actions now on tracker...
... Using w3c tracker at the moment...

<Alejandro_Llaves> http://www.w3.org/2015/spatial/track/

Kerry: Close my use cases after review

<kerry> close action-38

<trackbot> Closed action-38.

<kerry> close action-35

<trackbot> Closed action-35.

<kerry> action-34 close

Kerry: Completed on spreadsheet doc

<kerry> action-33 close

<kerry> action -28 close

<trackbot> Error finding '-28'. You can review and register nicknames at <http://www.w3.org/2015/spatial/track/users>.

<kerry> action-28 close

Alejandro_Llaves Finished coverage transfer to html - Next phase to collect issues and comments that need group disscussion

Alejandro_Llaves move these to tracker

Kerry: will also cover next week
... Added new comments when making changes to Use Cases

Alejandro_Llaves New reqs need to be added therefore

Alejandro_Llaves: Like people to check for missing reqs and add comments in spreadsheet

Kerry: Pick on Someone else with actions.. Mattperry

Mattperry: UC 16 can be closed

<kerry> close action-15

<trackbot> Closed action-15.

<kerry> clsoe action-19

<kerry> close action-19

<trackbot> Closed action-19.

<kerry> ack

<kerry> close action-27

<trackbot> Closed action-27.

billroberts: Action 27 is duplicate of 18 both to be closed

Frans: Action - work in progress

Kerry: Leave principles stuff out ? Does this work ?

Frans: associated email thread needs to be worked through

Kerry: bring back next week
... Last 5 mins any other issues to do for use case ?

Frans: Creating issues in tracker works well
... Happy !!!

Alejandro_Llaves: How do we review as a group html doc before it becomes First Working Draft
... Appreciate wider review before this step..

<AZ> My experience in previous groups: two reviewers within the group provide comments

Kerry: Editors can ask one or two people to review...

<AZ> about the editorial draft

Kerry: Editors need to set the time

Alejandro_Llaves: Some people have more expertise , so editors can select appropriate people

<Alejandro_Llaves> of course, volunteers for reviews are appreciated!

Frans: Technical talks ?

Kerry: Not for next few weeks

<Alejandro_Llaves> the idea would be to look at the different use cases for a specific deliverable, check the description, working links, etc.

Kerry: Thx Frans

<Alejandro_Llaves> thanks, bye!

<ErichBremer> thank you

<LarsG> thanks, bye

<Linda> bye

<ChrisLittle> bye

<Rachel> thanks, bye

<Ian_Holt> Thanks

<AZ> bye

Thanks all - bye