europa linked observation browser
DESCRIPTION
Presented at INSPIRE Conference 2013 in Florence taking place in the NASA Worldwind Challenge 2013 Workshop.TRANSCRIPT
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Europa Linked Observation BrowserINSPIRE Conferece 24.06.2013Florence, Italy.
Institute for Geoinformaticshttp://ifgi.uni-muenster.de
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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Outline
• Background• Sensor Observation Services • Linked Open Data and the Semantic Web• The Europa Linked Observation Browser
• Video (Use Case)• Future Work
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
How big is the damage?
• 10 people died.• € 11 billion loss.•Thousands of people needed to leave their homes.•Cultural heritage destroyed.•...
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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How are environmental data currently acquired?
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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Sensor Web Enablement (SWE)
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Sensor Observation Service (SOS)
• OGC Standard (Open Geospatial Consortium)
• Enables Sensor Data Exchange•Uses the (O&M) Observation and Measurements Standard
(INSPIRE compliant)
• SOS will soon be INSPIRE compliant.•Dr. Arne Bröring‘s Presentation (Making The Sensor Observation
Service INSPIRE Compliant), Thursday, at 14:00hr in the Room 1.
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Interoperability Issue
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O&M
- Water level- Water tempeature- Water salinity- ...
How to make observation data discoverable?Linked Open Data!
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What is Linked Open Data?
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The web is full of DATA!
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
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The Web
Link
But just for humans :(Awesome discoverability!
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?• What is the article about?• Who is the author?• What is inside the picture?• Where, when and by whom was the picture taken?• ...
The forbidden fruit
Xxxxxx xxxxxx xxxxxxxx xxx xxx xxxxxx. Xxxx xxxx x xxxxx xxxxxx
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Linked Open Data
“linked open data describes a method of publishing structured data so that it can be interlinked and become more useful.”
Tim Berners-Lee (Inventor of the World Wide Web)
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ID 1(Uniquily Identified)
ID 5
ID 3
ID 4ID 2
ID 6
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Some benefits of Linked Open Data
• Attaches meaning to data• Allows efficient thematic searches (e.g. person, company,
city, book, etc.)
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My repository!
• Links different kinds of datasets making the WORLD a single big repository!
•Private data and public data can be mixed, enabling companies and individuals to make better decisions and generate innovations.
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How to make observation data discoverable in the semantic
web?
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Europa Linked Observation
Browser
An overview in 3 steps…
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Interoperability Issue (recap)
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O&M
- Water level- Water tempeature- Water salinity- ...
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Step 1 – Solving the discoverability issue.
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O&M
- Water level- Water tempeature- Water salinity- ...
Transformation
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Step 2 – Consuming observation measurements
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• List observed phenomena (e.g. water level, water temperature, etc.)• Correlate observed phenomena (e.g. Water level and Wind speed).• Project in a virtual globe where the phenomena is being measured.• Enables temporal queries .• Shows a time-series animation of the choosen phenomena.
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Step 3 – diving into the semantic web(Asking spatial-thematic questions)
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• Which cities are around the flooding area?• Which museums are around the flooding area?• Which cultural heritages are around the flooding area?
• Which of them have been destroyed and which of them are still in danger? (proximity)
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An Application Use Case
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Saving Cultural Heritages Europa Linked Observation Browser 24
Users of the Europa Linked Observation Browser
A biblical hero beingrescued! (David)
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Cultural Heritages around flooded area• Check the water flow of the river Elbe in Dresden• Represent the point in the globe and check the last observation• Play a time-series animation.• Make a thematic search looking for cultural heritages within an
area of 25km from the measured point. • Navigate through the semantic web with the thematic search
results. Querying DBPedia.
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Selecting an Observation Property
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Selecting a Sensor
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Viewing one measurementEuropa Linked Observation Browser 28
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Exploring the Semantic WebEuropa Linked Observation Browser 29
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Diving into the Semantic WebEuropa Linked Observation Browser 30
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Europa Linked Observation BrowserWrapping up...
• Provides a clean and interoperable platform for linking observation data to the semantic web.
•Makes observation data discoverable not only by the browser, but for the rest of the web (World).
• Enable time-series animation for a better visualization of the observed phenomena.
•It is totally supported by the SOS developers.
•It is awesome!
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Future Work
• Export animation in a video format.• Create a Java API with the application core functionalities• Enable spatial queries.• Enable „on the fly“ queries to SOS.
• Your idea!
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Try it yourself
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https://github.com/jimjonesbr/de.ifgi.europa
Everything free and open source!
New to NASA World Wind?
http://ifgi.uni-muenster.de/worldwind-tutorial/
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Name: Alber Sánchez, Matthias Pfeil, Jim Jones
Imagine a funny joke here...
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Muito obrigado!Danke Schön!
Gracias!Dziękuję bardzo!