[Minutes] 2015-09-23

A little later than normal, the minutes of last week's meeting are at 
2015/09/23-sdw-minutes with a snapshot below.


           Spatial Data on the Web Working Group Teleconference

23 Sep 2015

    [2]Agenda

       [2] 
https://www.w3.org/2015/spatial/wiki/Meetings:Telecon20150923#Main_agenda

    See also: [3]IRC log

       [3] http://www.w3.org/2015/09/23-sdw-irc

Attendees

    Present
           kerry, Payam, Linda, frans, Alejandro_Llaves, jtandy,
           jonblower, eparsons, billroberts, aharth, MattPerry,
           ahaller2, AZ, PhilippeThiran, LarsG

    Regrets
           Bart, Rachel, Simon, Josh, phila

    Chair
           kerry

    Scribe
           frans

Contents

      * [4]Topics
          1. [5]last meetingś minutes
          2. [6]patent call
          3. [7]linking theme in BP
          4. [8]bp linking
          5. [9]Review submitted examples of best practice
             narratives
          6. [10]Prepare for seasonal time changes (starting
             October)
      * [11]Summary of Action Items
      __________________________________________________________

    <trackbot> Date: 23 September 2015

    <kerry> scribe: frans

    <kerry> scribenick: frans

    <jonblower> [apologies, slightly distracted today, trying to
    multitask on an urgent issue!]

    <scribe> chair: kerry

    <kerry> [12]http://www.w3.org/2015/09/16-sdw-minutes.html

      [12] http://www.w3.org/2015/09/16-sdw-minutes.html

last meetingś minutes

    <kerry> +1

    <eparsons> +1

    <jtandy> +1

    <Linda> +1

    <Alejandro_Llaves> +1

    <Payam> +1

    <MattPerry> +1

    proposed: approve last meetings minutes

    resolved: minutes accepted

patent call

    <kerry> [13]https://www.w3.org/2015/spatial/wiki/Patent_Call

      [13] https://www.w3.org/2015/spatial/wiki/Patent_Call

    kerry: we have lost Lewis as a BP editor
    ... two editors are present: jtandy and payam

linking theme in BP

bp linking

    <kerry>
    [14]https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narrat
    ives#linking_data

      [14] 
https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narratives#linking_data

    kerry hands over to jtandy

    <jtandy>
    [15]https://www.w3.org/2015/spatial/wiki/Linking_Data#Best_Prac
    tice_theme:_Linking_Data

      [15] 
https://www.w3.org/2015/spatial/wiki/Linking_Data#Best_Practice_theme:_Linking_Data

    <jtandy> [16]https://www.w3.org/2015/spatial/wiki/Linking_Data

      [16] https://www.w3.org/2015/spatial/wiki/Linking_Data

    jtandy: made a page with questions about linking spatial data
    ... related to the ´identifier´ and ´semantics´ themes
    ... would be happy if other people contribute to the wiki page

    <eparsons> +1

    <Linda> +1

    <billroberts> +1

    <kerry> +1

    frans: are HTML pages with embedded data considered structured
    data?

    jtandy: yes, the embedded data are structured data

    ed: agrees, challenge is to make implicit data on html pages
    explicit

    <kerry> +1

    jtandy: letś encourage best practices regardless of data format
    ... Where do links commonly occur?
    ... please add more items to the list

    kerry: please identify who you are when you add to the wiki
    page

    <jtandy> [jtandy]

    jtandy: we could use prefixes (if you are not jtandy)

    <Zakim> kerry, you wanted to ask about how to do this

    links also commonly occur in metadata

    <billroberts> I need to mull it over but will add thoughts to
    the wiki - thanks jeremy

    <kerry>
    [17]https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narrat
    ives#linking_data for lars -- we are here

      [17] 
https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narratives#linking_data

    subtopic: what should I link to?

    jonblower: things could end up having two IDs
    ... clarifying the difference between both types of resources
    would be helpful

    eparsons: likes to reinforces Jon´s point, the thing itself is
    more important than its spatial representation

    <kerry> +1 to ed

    kerry: identifiers is a different topic, so we need links
    between these two topics

    jtandy agrees

    jtandy: how do you link to things that do not have a URI?

    eparsons hopes an answer is not expected

    jon: do not have a answer but notes that hashtags can be made
    by the public and used as indentifiers

    ??: blank nodes could be used

    <jonblower> (maybe I should say used for a similar role as
    identifiers. I didn't mean that hashtags are proper identifiers
    by themsleves. Just an example that the community will create
    these "anchors" if they don't exist)

    LarsG: hashtags are not good as identifiers. They are not
    specific enough
    ... they do not uniquely identify places

    kerry: firstly: twitters hashtags are a bad idea because they
    are not persistent
    ... secondly: why not create a new ID if you are unable to find
    an exsiting one?

    jtandy: people sometimes are too lazy to find existing IDs

    eparsons: much data are powered by wikidata. So why not
    contribute to the source wiki?

    jtandy: lalalala

    jon: there is a big community that use hashtags to link things.
    It is not a good practice, but it is happening.

    <eparsons> Agree with Jon we need to acknowledge the community
    in developing links

    jon: we need to be aware that not all practices can be top down

    aharth: describes a dataset where blank nodes are used to group
    data, with possibilty of improvement later

    billroberts: best practices should be realistic, describe ways
    of working with non ideal data.
    ... unprecise data are still valuable.

    jtandy agrees

    <aharth> aharth: i'd suggest to look at schema.org for
    inspiration re linking without identifiers

    <eparsons> +1 to schema.org

    <jonblower> imprecise != not useful

    jtandy: we should work with real world content and encourage
    better practices

    subtopic: what do links mean?

    jtandy: please add your thoughts to the wiki and add your name

    subtopic: How can I describe links in my format of choice?
    ... What else links to my subject of interest?

    billroberts: reference area is often a dimension in data cubes
    ... it works with one or a few SPARQL endpoints
    ... but on the full web it becomes difficult
    ... catalogs could be part of the solution.

    <jonblower> (Sorry, got to go now, but referencing a
    conversation from earlier in the call, I was trying to
    articulate the difference between Spatial Objects and Spatial
    Things, as described in
    [18]https://data.gov.uk/sites/default/files/Designing_URI_Sets_
    for_Location-V1.0_10.pdf. These were the "two identifiers for
    the same thing" that I was trying to explain.)

      [18] 
https://data.gov.uk/sites/default/files/Designing_URI_Sets_for_Location-V1.0_10.pdf.

    eparsons: public catalog of places and relations between places
    can be useful
    ... but we need to accept that there are risks and complexities
    when working with spatial references in statistical data

    subtopic: How can I manage links between sets of things (so
    that I don't have to manage individual links)?

    jtandy: how can we make this easier?

    subtopic: How can third parties assert links and relationships
    (and should I trust their assertions?)

    jtandy: how valid or trustworthy are spatial assertions on the
    web?

    eparsons: how can we can keep this discussion going?

    <eparsons> +1

    jtandy: we could make an e-mail thread for each subtopic

    esparsons: likes the idea

    <Alejandro_Llaves> +1

    linda: nice work by jtandy
    ... but we have to keep things in scope (i.e. only spatial)

    <kerry> recall invitation to pass generic thing to data on the
    web

    jtandy: yes, at some point we have to cut off

    <jtandy>
    [19]https://www.w3.org/2015/spatial/wiki/BP_Structure_Examples#
    Summary_points

      [19] 
https://www.w3.org/2015/spatial/wiki/BP_Structure_Examples#Summary_points

Review submitted examples of best practice narratives

    jtandy: please read this page react

    linda: the examples I added were provided by Simeon Nedkov

    <kerry> ACTION: jtandy to create thread for each linking theme
    [recorded in
    [20]http://www.w3.org/2015/09/23-sdw-minutes.html#action01]

      [20] http://www.w3.org/2015/09/23-sdw-minutes.html#action01]

    <trackbot> Created ACTION-79 - Create thread for each linking
    theme [on Jeremy Tandy - due 2015-09-30].

    <eparsons> +1

    <Linda> +1

    <scribe> ACTION: jtandy to create e-mail threads for each
    linking subtopic [recorded in
    [21]http://www.w3.org/2015/09/23-sdw-minutes.html#action02]

      [21] http://www.w3.org/2015/09/23-sdw-minutes.html#action02]

    <trackbot> Created ACTION-80 - Create e-mail threads for each
    linking subtopic [on Jeremy Tandy - due 2015-09-30].

    <billroberts> +1 sounds like we have quite a bit of discussion
    to do, so email first then a wiki summary if we reach some
    consensus?

Prepare for seasonal time changes (starting October)

    kerry: lost my IRC
    ... suggest to go back to old times (Australian summer)

    eparsons: let us pick times that work well for Asia and Europe
    ... Australia is part of Asia

    kerry: will put the new times on the mailing list.

    <kerry>
    [22]http://www.timeanddate.com/worldclock/fixedtime.html?msg=SD
    WWG+Call&iso=20150211T20&ah=1

      [22] 
http://www.timeanddate.com/worldclock/fixedtime.html?msg=SDWWG+Call&iso=20150211T20&ah=1

    <eparsons> bye all

    <LarsG> bye, thx

    kerry: closes the meeting

    <Alejandro_Llaves> thanks, bye!

    <billroberts> bye

    <eparsons> thanks frans

    <Payam> thanks, bye

    my pleasure

Summary of Action Items

    [NEW] ACTION: jtandy to create e-mail threads for each linking
    subtopic [recorded in
    [23]http://www.w3.org/2015/09/23-sdw-minutes.html#action02]
    [NEW] ACTION: jtandy to create thread for each linking theme
    [recorded in
    [24]http://www.w3.org/2015/09/23-sdw-minutes.html#action01]

      [23] http://www.w3.org/2015/09/23-sdw-minutes.html#action02
      [24] http://www.w3.org/2015/09/23-sdw-minutes.html#action01

    [End of minutes]
      __________________________________________________________

Received on Monday, 28 September 2015 11:06:25 UTC