Ordnance Survey Ireland & ADAPT Providing Geospatial Information as Linked Open Data The ADAPT Centre is funded under the SFI Research Centres Programme (Grant 13/RC/2106) and is co-funded under the European Regional Development Fund. Prof. Declan O’Sullivan ADAPT Research Centre Trinity College Dublin
20
Embed
Providing geospatial information as Linked Open Data
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Ordnance Survey Ireland & ADAPTProviding Geospatial Information
as Linked Open Data
The ADAPT Centre is funded under the SFI Research Centres Programme (Grant 13/RC/2106) and is co-funded under the European Regional Development Fund.
Prof. Declan O’Sullivan ADAPT Research Centre Trinity College Dublin
www.adaptcentre.ie
ADAPT is revolutionising the waypeople can seamlessly
interact with digital content, systems and each other
Enabling users to achieve unprecedented levels of access and efficiency
The Web of Documents were created by humans for humans; the linksbetween documents bore little meaning for machines and documents provided little structured information.
Structured information can be found on the Web – such as XML, CSV, etc. – but, … How do we link data rather than documents, and create a global “database” of information?
Linked Data is a global initiative to publish and interlink structured (open) data on the Web using a combination of standardized technologies (HTTP, URI, RDF) such that …
• any agent can explore the data and links …• that is fit for the agent (human or computer based) ...• via a “protocol” and …• allowing one to build innovative applications.
(For a gentle introduction: see video at: https://vimeo.com/36752317)
Just as hyperlinks in the classic Web connect documents into a single global information space, Linked Data enables links to be set between items in different data sources and therefore connect these sources into a single global data space.
The use of Web standards and a common data model make it possible to implement genericapplications that operate over the complete data space.
Tom Heath, Christian Bizer,Linked Data: Evolving the Web into a Global Data Space
Open data is the idea that some data should be freely available to everyone to use and republish as they wish, without restrictionsfrom copyright, patents or other mechanisms of control [1]. It is about “just” making sure that the data is available.[1] Auer, S. R.; Bizer, C.; Kobilarov, G.; Lehmann, J.; Cyganiak, R.; Ives, Z. (2007). "DBpedia: A Nucleus for a Web of Open Data". The Semantic Web. Lecture Notes in Computer Science 4825.
Linked Data is about serving data (open or not) according to several principles (and couple ofguidelines) formulated byBerners-Lee.
1. Use URIs to identify things.2. Use HTTP URIs so that these
things can be looked up.3. Provide useful information
about what a name identifies when looked up (using open standards such as HTML, RDF, etc.)
4. Refer to other things using their HTTP URI-based names when publishing data on the Web.
www.adaptcentre.ieORDNANCE SURVEY OF IRELAND TARGETED PROJECT
GOAL:Lay the foundations of a Semantic Architecture and Linked Data platform for the OSi taking into account best practices and guidelines in the domain of geospatial information and industry and OSi’s current technologystack.
STARTING POINT:Boundaries dataset, which are open and already available on data.gov.ie, but not as Linked Data.
Tasks1. Requirements Analysis2. Concept Representation3. Generating RDF and Linked Data Management4. Conceptual Architecture of the Linked Data Platform5. Implementing the Linked Data Platform6. Demonstrator
Requirements Analysis included engagement with key stakeholders in Central Statistics Office (CSO) & Department of Public Expenditure and Reform (DPER)
• Formulated two use case scenarios from which requirements were distilled:
1. Accessing the same dataset with different geometric representations, i.e., different generalizations or “resolutions”.
2. Capturing the provenance and evolution of features and their geometric representations. E.g., legal statutes to change boundaries.
Description of County Clare linking to its three representationsDescription of County Corklinking to its three representationsMap to default to be included.
www.adaptcentre.ieAPPLICATIONS ARE ENDLESS!Example: “Fans of Harry Clarke” app
The Honan Chapel Cork
St. Gobnait Stained Glass Harry Clarke
Original Design in TCD Library
Description from DBpediaSt. Gobnait (1916) is dressed in royal blue robes with elaborate designs in turquoise. She wears a silver cloak and a veil. Thieves are depicted around her lower body. Bees are depicted at both sides of her face. The window is bordered with tiny blue and magenta beads of colour. In the bottom panel the saint is shown carrying a honeycomb and bees are depicted chasing away the thieves who threaten to rob herchurch.