POI Ontology

Linked Data Finland

★★★★★★

A point of interest (POI) is a specific point that someone may find useful or interesting. The purpose of this dataset is to aggregate POI data from different sources.


License

CC BY 3.0

Licensor: Museovirasto, Helsingin kaupunginkirjasto, http://seco.cs.aalto.fi

See possible graph-specific licenses below.


Detailed Dataset Contents

Suomenlinna buildings (URI: http://ldf.fi/poi/suomenlinna)

( Browse data / Download )
This graph includes data about the history of buildings in Suomenlinna maritime fortress located off the coast of Helsinki. The RDF data has been extracted from the History of buildings map found in the Suomenlinna website

Example resource URI: http://ldf.fi/poi/suomenlinna/p50

RKY (URI: http://ldf.fi/poi/rky)

( Browse data / Download )
This graph contains nearly 2000 areas of interest, gathered by Finland's National Board of Antiquities.

Example resource URI: http://ldf.fi/poi/rky/p1

Suomenlinna Blue Route (URI: http://ldf.fi/poi/suomenlinna/blue_route)

( Browse data / Download )
This is the main tourist route in Suomenlinna. The tour consists of 42 stops, and each stop consists of one Suomenlinna building (POI) and various information related to this building.

Example resource URI: http://ldf.fi/poi/suomenlinna/blue_route/s17

Tarinoiden Helsinki (URI: http://ldf.fi/poi/tarinoiden_helsinki)

( Browse data / Download )
RDF data from the Helsinki City Library's 'Tarinoiden Helsinki' - map service. Includes fact and fiction literary relating to places in Helsinki.

Example resource URI: http://www.tarinoidenhelsinki.fi/resource/item/i7669


Schemas Used

Following schemas (vocabularies) are used in the datasets above:


URI Data Services

Give the URI without brackets (<>) and without encoding.

Human Use Case 1: Viewing the RDF Description of a URI

View the RDF description of a URI using the template: http://ldf.fi/SERVICE/data?uri=URI

URI:
Format:
View result in browser (accept header = text/plain)

Human Use Case 2: Linked Data Browsing Starting from a URI

Start browsing from a URI using the template http://ldf.fi/SERVICE/page?uri=URI

URI:

Machine Use Case: Getting the RDF Description of a Resource

If the URI is dereferenceable, e.g., minted at the http://ldf.fi domain, just input the URI in a browser or use it in your favourite software. For example: URI=http://ldf.fi/finlex/laki/p35. If the URI is described in this LDF service you can use the URI template http://ldf.fi/SERVICE/data?uri=URI no matter whether the URI is dereferenceable or not: just input the URI in the form below:

Give URI:

Format:


SPARQL Endpoint: http://ldf.fi/poi/sparql

Queries are represented using the URI template: http://ldf.fi/SERVICE/sparql?query=QUERY

Query Test Form


Format:
View result in original form in browser (content-type = text/plain).
By default (XML/HTML and the "text/plain" check box not checked) the result is presented as an HTML table with links to related resources.
Note: With DESCRIBE/CONSTRUCT queries "Text" format means Turtle, "CSV" and "TSV" formats cannot be used, and checking the "text/plain" check box presents the result in N-Triples.

SPARQL Service Description

Get the description in RDF. (Notice: A service description is not available for all datasets - then empty description is returned. If you open the link in browser you are directed to a SPARQL query form instead of the RDF description. You can access the service description by making an HTTP query without an Accept header (e.g. curl).) LDF uses W3C SPARQL Service Description recommendation for this.

Visualization

Visualizations for this dataset are available here.

A general Google Charts visualization is available here.


Semantic Computing Research GroupAalto UniversityUniversity of HelsinkiTekes