Map4rdf - Faceted Browser for Geospatial Datasets

Transcription

1 Map4rdf - Faceted Browser for Geospatial Datasets Alexander de León, Filip Wisniewki, Boris Villazón-Terrazas, Oscar Corcho Facultad de Informática, Universidad Politécnica de Madrid Campus de Montegancedo sn, Boadilla del Monte, Madrid bvillazon@fi.upm.es Phone: , Fax: Slides available at: Acknowledgements: Daniel Garijo, Victor Saquicela, Asunción Gómez-Pérez, Luis M. Vilches, and all OEG members involved in the Linked Data initiatives WorkdistributedunderthelicenseCreativeCommonsAttribution- Noncommercial-Share Alike 3.0

2 ToC Motivation Map4rdf overview Use cases Conclusions and future work 2

3 Motivation Effective usage, develop applications that exploit these data Streaming resources 3

4 Motivation Linked Open Data Cloud 4

5 ToC Motivation Map4rdf overview Use cases Conclusions and future work 5

6 Overview Faceted browsing tool for exploring and visualizing RDF datasets enhanced with geospatial information. map4rdf SPARQL Triplestore 6

7 Basic architecture Web*Client* Faceted*Browsing** Interface* Event*Bus* Invoker* Command*A* Command*B* Command*C* Command*D* Command*E* Web*Server* Dispatch*Servlet* Command* Handler*A* Command* Handler*B* Command* Handler*C* Command* Handler*D* Command* Handler*E* Data*Access*Object*(DAO)* SPARQL*Endpoint* Triplestore* 7

8 Geospatial model Model used by DBPedia geo:lat dbpedia:madrid geo:long GeoLinkedData Geometry Model, NeoGeo Vocab geo:point rdf:type geo:lat geo:geometry geoes:madrid geoes:wgs84/40.41_-3.70 geo:long

9 Geospatial model - more complex geometries geoes:ontology/linestring rdf:type geoes:ebro geo:geometry geoes:resource/ geoes:wsg84/0.67_45.3 geoes:ontology/formedby geoes:ontology/formedby geoes:wsg84/0.45_45.4 geo:point geo:lat geo:long geo:lat geo:long

10 10 Google Maps

11 11 OpenStreetMap

12 12 Open Layers Map

13 Catalogue Service Web Also we can include any other WMS service 13

14 14 Complex geometries

15 Suggestions of Editions / Data curation For example, let us assume that the resource that represents the Murcia Airport has not the correct information. 15

16 ToC Motivation Map4rdf overview Use cases Conclusions and future work 16

17 GeoLinkedData 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). 17

18 18 Provinces

19 Integrate data coming from the Statistical Institute 19

20 Provinces Industry Production Index Specific visualizations for datasets based on SCOVO and RDF Data Cube

21 Meteorological Linked Data - AEMET AEMET, Spanish Meteorological Office, data Meteorological data registered by its weather stations, radars, lightning detectors and ozone soundings. 21

22 Weather stations 11/02/11 22

23 Observations for each station 11/02/11 23

24 A particular observation Specific visualizations for datasets based on SSN Ontology ongoing work 11/02/11 24

25 ToC Motivation Map4rdf overview Use cases Conclusions and future work 25

26 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 Future work Improve facets visualization Include more visualizations for specific vocabularies 26

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28 Map4rdf - Faceted Browser for Geospatial Datasets Alexander de León, Filip Wisniewki, Boris Villazón-Terrazas, Oscar Corcho Facultad de Informática, Universidad Politécnica de Madrid Campus de Montegancedo sn, Boadilla del Monte, Madrid bvillazon@fi.upm.es Phone: , Fax: Slides available at: Acknowledgements: Daniel Garijo, Victor Saquicela, Asunción Gómez-Pérez, Luis M. Vilches, and all OEG members involved in the Linked Data initiatives WorkdistributedunderthelicenseCreativeCommonsAttribution- Noncommercial-Share Alike 3.0