William Denton
Web Librarian
York University, Toronto, Canada
Twitter: @wdenton | GitHub: wdenton
Slides: www.miskatonic.org/ar/arstandards10/
March 2014 AR Standards Community Meeting
26 March 2014, Arlington VA
CC-BY
Is geolocation the missing ingredient?
We have lots of it
and we want you to use it
George Pelecanos (1997)
Dimitri Karras swung the Ghia into a space in front of 1816 R Street, cut the engine.
“Here we are,” said Karras.
Vivian had a look at the building: a former mansion with a peeling stucco facade, now four floors housing three units per floor, a small yard out front patched with brown where a fat gray cat with huge ears lay on the grass watching a cluster of gnats hover in the air.
1812 on left, 1818 on the right
(38.912599, -77.04245)
Ask MapFAST about (38.912599,-77.04245) and get JSON back
"Placemark": [ { "id": "fst01316866", "name": "Washington (D.C.) -- Dupont Circle", "description": "", "point": { "coordinates": "38.9097,-77.0431" }
The important bit:
Washington (D.C.) -- Dupont Circle
That is a Library of Congress Subject Heading. We say “LCSH”
See this in action yourself on your phone at
Library of Congress Subject Headings are a standard way of describing what things are about
LCSH is a standard we use to describe our stuff
Dupont Circle (Washington, D.C.)
Dupont Circle
is linkedDupont Circle
in RDF<madsrdf:authoritativeLabel xml:lang="en">Dupont Circle (Washington, D.C.)</madsrdf:authoritativeLabel> <madsrdf:elementList rdf:parseType="Collection"> <madsrdf:GeographicElement> <madsrdf:elementValue xml:lang="en">Dupont Circle (Washington, D.C.)</madsrdf:elementValue> </madsrdf:GeographicElement> </madsrdf:elementList>
(MADS is the Metadata Authority Description Schema, used for describing things like this, which isn’t a thing like a picture of Dupont Circle but an “authority record”)
We make standards to fit our specific needs: BagIt, BIBFRAME, Dublin Core, EAD, MADS, MARC, MODS, METS, OAI-PMH, ORE, PREMIS, RAD, RDA, …
For everything else we use web standards: Atom, GeoJSON, HTML5, JPEG2000, JSON, KML, RDF, RSS, XML, WKT …
We use your standards.
You can use ours!
They fit together.
<dct:identifier>1316866</dct:identifier> <schema:name>Washington (D.C.)--Dupont Circle</schema:name> <schema:sameAs> <rdf:Description rdf:about="http://sws.geonames.org/4138322/"> <rdfs:label>Dupont Circle</rdfs:label> </rdf:Description> </schema:sameAs> <schema:geo> <schema:GeoCoordinates> <schema:latitude>38.90972</schema:latitude> <schema:longitude>-77.04305</schema:longitude> </schema:GeoCoordinates> </schema:geo>
<rdf:Description rdf:about="http://sws.geonames.org/4138322/">
<gn:countryCode>US</gn:countryCode> <wgs84_pos:lat>38.90944</wgs84_pos:lat> <wgs84_pos:long>-77.04333</wgs84_pos:long> <wgs84_pos:alt>25</wgs84_pos:alt> <gn:locationMap rdf:resource="http://www.geonames.org/4138322/dupont-circle.html"/> <gn:wikipediaArticle rdf:resource="http://en.wikipedia.org/wiki/Dupont_Circle"/>
API is searchable by location (gives JSON-LD)
API is searchable by location (gives JSON)
York University Libraries has the photo archives from the old Toronto newspaper the Toronto Telegram (1876–1971), such as this photo from Kensington Market:
http://digital.library.yorku.ca/yul-89826/kensington-market/datastream/MODS/view
<identifier type="local">ASC12869</identifier> <titleInfo> <title>Kensington Market.</title> </titleInfo> <abstract>Image of a man standing on a street corner near a fruit stand.</abstract> <targetAudience>ASC Red Dot</targetAudience> <name> <namePart>[Peter] Ward</namePart> <role><roleTerm authority="marcrelator" type="text">Photographer</roleTerm></role> </name> ... <cartographics> <coordinates>43.654059, -79.400464</coordinates> </cartographics>
Location!
http://digital.library.yorku.ca/yul-89826/kensington-market/datastream/DC/view
<dc:subject>Toronto Telegram--Portuguese Canadian History Project</dc:subject> <dc:subject>Toronto Telegram--Portuguese Canadian History Project</dc:subject> <dc:description>Image of a man standing on a street corner near a fruit stand.</dc:description> <dc:contributor>[Peter] Ward (Photographer)</dc:contributor> ... <dc:relation>Toronto Telegram fonds, F0433</dc:relation> <dc:coverage>North America--Canada--Toronto</dc:coverage> <dc:coverage>43.654059, -79.400464</dc:coverage>
Location!
/solr/yudl/select? q=\{!geofilt+\}& fl=dc.title,mods_originInfo_dateIssued_dt,mods_subject_cartographics_coordinates_ms& wt=csv& indent=true& spatial=true& pt=43.655,-79.4024& sfield=mods_subject_cartographics_coordinates_coordinate& d=1
“Show me everything you have within 1 km of (43.655, -79.4024)"
| dc.title | mods_...dateIssued_dt | mods_...coordinates_ms | |-------------------------------------------------+-----------------------+------------------------| | 133 Augusta Ave. : Valerie Agnes Riley Murdered | 1958-01-01T00:00:00Z | 43.652289, -79.401119 | | Food : Ways in which Food Arrives in Toronto | 1971-04-20T00:00:00Z | 43.652289, -79.401119 | | Bellevue Ave. [not used] | 1955-01-01T00:00:00Z | 43.652289, -79.401119 | | Kensington Market. | 1965-10-16T00:00:00Z | 43.654007, -79.400418 | | Kensington Market. | 1965-10-16T00:00:00Z | 43.654059, -79.400464 | | Kensington Market. | 1965-10-16T00:00:00Z | 43.654524, -79.401457 | | Augusta Ave. | 1958-11-08T00:00:00Z | 43.655733, -79.40227 | | Augusta Ave : Market [not used] | 1955-01-01T00:00:00Z | 43.655162, -79.402421 | | Augusta Ave : Market [not used] | 1955-01-01T00:00:00Z | 43.65489, -79.402246 |
“Here is everything I have within 1 km of (43.655, -79.4024)"
Ready for a geolocated AR view.
We have lots of stuff and we want you to use it
We use standards to describe our stuff
Some we made for our specific needs, others are web standards
Our sites use the standards to describe the stuff
and make it findable and usable