Map4rdf - Faceted Browser for Geospatial Datasets
WorkdistributedunderthelicenseCreativeCommonsAttribution-Noncommercial-Share Alike 3.0
Alexander de León, Filip Wisniewki, Boris Villazón-Terrazas, Oscar Corcho Facultad de Informática, Universidad Politécnica de Madrid
Campus de Montegancedo sn, 28660 Boadilla del Monte, Madrid http://www.oeg-upm.net
[email protected] Phone: 34.91.3366605, Fax: 34.91.3524819
@boricles Slides available at: http://www.slideshare.net/boricles/
Acknowledgements: Daniel Garijo, Victor Saquicela, Asunción Gómez-Pérez, Luis M. Vilches, and all OEG members involved in the Linked Data initiatives
ToC
• Motivation
• Map4rdf overview
• Use cases
• Conclusions and future work
2
Effective usage, develop applications that exploit these data
3
Streaming resources
Motivation
Linked Open Data Cloud
4
Motivation
ToC
• Motivation
• Map4rdf overview
• Use cases
• Conclusions and future work
5
Overview
• Faceted browsing tool for exploring and visualizing RDF datasets enhanced with geospatial information.
6
map4rdf SPARQL
Triplestore
http://oegdev.dia.fi.upm.es/projects/map4rdf/ http://github.com/pejot/linkeddata-visualization-tools/
Basic architecture
7
Triplestore*
Web*Server*
SPARQL*Endpoint*
Web*Client* Faceted*Browsing**Interface*
Command*A* Command*B* Command*C* Command*D* Command*E*
Invoker*
Event*Bus*
Dispatch*Servlet*
Command*Handler*A*
Command*Handler*B*
Command*Handler*C*
Command*Handler*D*
Command*Handler*E*
Data*Access*Object*(DAO)*
Geospatial model
8
• Model used by DBPedia http://www.w3.org/2005/Incubator/geo/
dbpedia:Madrid
40.41
geo:lat
geo:long
-3.70
• GeoLinkedData Geometry Model, NeoGeo Vocab http://geo.linkeddata.es/web/guest/modelos http://geovocab.org/doc/neogeo/
geoes:Madrid geoes:wgs84/40.41_-3.70 geo:geometry
40.41
-3.70
geo:lat
geo:long
geo:Point
rdf:type
Geospatial model - more complex geometries
9
geoes:Ebro geoes:resource/7979707 geo:geometry
40.41 -3.70
geo:lat geo:long
geoes:wsg84/0.45_45.4
geoes:ontology/formedBy
geoes:wsg84/0.67_45.3
40.41 -3.70
geo:lat geo:long
geo:Point
geoes:ontology/LineString
rdf:type
geoes:ontology/formedBy
…
Google Maps
10
OpenStreetMap
11
Open Layers Map
12
Catalogue Service Web
13
• http://www.idee.es/csw-inspire-idee/srv/en/main.home • http://www.idee.es/csw-inspire-idee/servicio
• Also we can include any other WMS service
Complex geometries
14
Suggestions of Editions / Data curation
• For example, let us assume that the resource that represents the Murcia Airport has not the correct information.
15
ToC
• Motivation
• Map4rdf overview
• Use cases
• Conclusions and future work
16
GeoLinkedData
17
• An open initiative whose aim is to enrich the Web of Data with Spanish geospatial data
• It started off by publishing diverse information sources, such as National Geographic Institute of Spain (IGN) and Statistical Institue of Spain (INE).
• http://geo.linkeddata.es/
Provinces
18
Integrate data coming from the Statistical Institute
19
Provinces – Industry Production Index
20
Specific visualizations for datasets based on SCOVO and RDF Data Cube
http://vocab.deri.ie/scovo http://www.w3.org/TR/vocab-data-cube/
Meteorological Linked Data - AEMET
• AEMET, Spanish Meteorological Office, data
• Meteorological data registered by its weather stations, radars, lightning detectors and ozone soundings.
• http://aemet.linkeddata.es/
21
Weather stations
11/02/11
22
Observations for each station
11/02/11
23
A particular observation
11/02/11
Specific visualizations for datasets based on SSN Ontology – ongoing work
http://www.w3.org/2005/Incubator/ssn/ssnx/ssn
24
ToC
• Motivation
• Map4rdf overview
• Use cases
• Conclusions and future work
25
Conclusions
• map4rdf for exploring and visualizing RDF datasets.
• Easy to configure, use and extend
• It is also used in El Viajero, an application for exploiting, managing and organizing Linked Data in the domain of news and blogs about traveling
http://webenemasuno.linkeddata.es/index_en.html
• Future work
• Improve facets visualization • Include more visualizations for specific vocabularies
26
Map4rdf - Faceted Browser for Geospatial Datasets
WorkdistributedunderthelicenseCreativeCommonsAttribution-Noncommercial-Share Alike 3.0
Alexander de León, Filip Wisniewki, Boris Villazón-Terrazas, Oscar Corcho Facultad de Informática, Universidad Politécnica de Madrid
Campus de Montegancedo sn, 28660 Boadilla del Monte, Madrid http://www.oeg-upm.net
[email protected] Phone: 34.91.3366605, Fax: 34.91.3524819
@boricles Slides available at: http://www.slideshare.net/boricles/
Acknowledgements: Daniel Garijo, Victor Saquicela, Asunción Gómez-Pérez, Luis M. Vilches, and all OEG members involved in the Linked Data initiatives