Geo-Net-PT 02 in English

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Geo-Net-PT 02 is a public Geographic Ontology of Portugal, which extends Geo-Net-PT 01. It was created by the XLDB Team of the University of Lisbon, Faculty of Sciences under project GREASE (Raciocínio Geográfico para Motores de Busca). Linguateca - Centro de Recursos Distribuído para o processamento computacional da Língua Portuguesa is handling the distribution of Geo-Net-PT.

A Geo-Net-PT 02 is a computational resource for applications demanding geographic information about Portugal. It respects the recommended international standards for publishing ontologies.

XLDB also provides a SPARQL endpoint for querying the ontology:Geo-Net-PT 02 SPARQL endpoint

Contents

Answers to Frequently Asked Questions

What is Geo-Net-PT 02 for?

Geo-Net-PT 02 is specially useful for applications that need to obtain the descriptions of geographic resources matching a given name or resource type. For instance, the name "Liberdade" designates geographic features of 15 distinct types, such as rua (street), avenida (avenue) e travessa (alley).

There 278 streets named Liberdade in 118 Portuguese municipalities. With Geo-Net-PT, one may identify each of the 278 locations in Portuguese territory that are implict in the sentence "Ele mora na rua da Liberdade".

What does Geo-Net-PT 02 contain?

Geo-Net-PT 02 contains all the geographic administrative data of Portugal (distritos, concelhos and ruas, among others), and domains of websites of the Portuguese Web and their geographic scopes (the geographic scope of a website is the region of interest of the contents it describes. For instance, the web site of the Municipality of Lisbon has the Lisbon municipality region as its geographic scope).

Comparatively to Geo-Net-PT 01, Geo-Net-PT 02 adds the following feature types (classes of geographic entities) to the physical domain:


Tipo de entidade geográfica Nº Tipo de entidade geográfica Nº
Rio (River) 2421 Recurso turístico (Touristic resource) 84
Praia (Beach) 558 Biótopo 58
Museu (Museum) 507 Linha férrea (Railroad) 38
Sítio arqueológico (Archeological site) 414 Área protegida (Protected area) 31
Hotel 381 Serra (Mountain range) 25
Região Natural (Natural region) 304 Marina 26
Castelo (Castle) 256 Parque Natural (Natural Park) 12
Nascente (Spring) 220 Estuário (Estuary) 8
Aldeia histórica (Historic village) 217 Monumento Natural (Natural monument) 5
Albufeira (Reservoir) 90 Parque Nacional (National Park) 1

Total: 5656

Besides the physical geography information, the data of all geographic domains have been annotated with additional information:

  • multilingual names (Lisboa[PT] is also Lisbon[EN], Lisbonne[FR] e Lissabon[DE])
  • footprints for both administrative and physical features
  • provenance information for each datum included in the ontology.

Alignment with Yahoo!GeoPlanet™

We provide an alignment between features in the Administrative with "Where On Earth Identifiers" (WOEID) from GeoPlanet™. The alignment produced is relatively complete, containing almost all the administrative divisions of Portugal (districts, municipalities and civil parishes) as well as a high number of other towns.

Feature Type Coverage (%)
Distrito (District) 100.0
Concelho (Municipality) 100.0
Ilha (Islands) 100.0
Freguesia (Civil Parish) 83.7
Localidade (Settlement) 27.6
Zona (Zone) 13.0

The aligment is available as an RDF file that can be queried through a SPARQL endpoint.

How is Geo-Net-PT 02 formatted?

Geo-Net-PT02 is published in the Web Ontology Language (OWL) format of the W3C. Other formats may be generated upon request.

XLDB also provides a SPARQL endpoint for querying the ontology: Geo-Net-PT 02 SPARQL endpoint

Why is a Geographic Ontology of Portugal needed?

The GREASE project develops a location-aware search engine, where pages can be matched with searches through associations of the geographic scopes of web pages with location data obtained by positioning devices embedded in their web access equipment.

The next Internet generation will be primarily accessed from portable devices that will offer dynamic access services to data distributed across multiple information sources. In the new environment, the information about geographic scopes will be essential in the new services once 3G technology becomes mainstream.

What are the licensing terms of Geo-Net-PT 02?

Geo-Net-PT 02 is licensed under a Creative Commons Attribution 3.0 License (CC-BY).

Linguateca and the XLDB Team should always be mentioned as sources of the published material in all public presentations of any works using this ontology, including, articles, thesis and conference presentations. Any reference to Geo-Net-PT 02 should have the following format: 


The Geo-Net-PT 02 [1] is a resource built by XLDB Group (http://xldb.fc.ul.pt)  and distributed by  Linguateca (http://www.linguateca.pt).

[1] Francisco J. Lopez-Pellicer, Marcirio Chaves, Catarina Rodrigues, Mário J. Silva, Geographic Ontologies Production in Grease-II 
Technical Report. TR 09-18. University of Lisbon, Faculty of Sciences, LASIGE, November 2009. DOI: 10455/325

How can I obtain Geo-Net-PT 02?

Click here to obtain Geo-Net-PT 02, which is licensed under a Creative Commons Attribution License 3.0 (CC-BY).

If you need the Geo-Net-PT 01, an earlier version, with different model and ids, send a message to support team , outlining the scope of interest.

Is Geo-Net-PT02 supported?

We will make updates as we collect new information. Support questions should be addressed directly to support team .

Acknowledgments

Geo-Net-PT 02 is the product of the work of several researchers, mainly: