Europa Linked Observation Browser

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation BrowserINSPIRE Conferece 24.06.2013Florence, Italy.

Institute for Geoinformaticshttp://ifgi.uni-muenster.de

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 2

Outline

• Background• Sensor Observation Services • Linked Open Data and the Semantic Web• The Europa Linked Observation Browser

• Video (Use Case)• Future Work

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 3

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 4

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.•...

Europa Linked Observation Browser 5

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 6

How are environmental data currently acquired?

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 7

Sensor Web Enablement (SWE)

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.

Europa Linked Observation Browser 8

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Interoperability Issue

Europa Linked Observation Browser 9

O&M

- Water level- Water tempeature- Water salinity- ...

How to make observation data discoverable?Linked Open Data!

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 10

What is Linked Open Data?

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 11

The web is full of DATA!

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 12

The Web

Link

But just for humans :(Awesome discoverability!

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 13

?• 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

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)

Europa Linked Observation Browser 14

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 15

ID 1(Uniquily Identified)

ID 5

ID 3

ID 4ID 2

ID 6

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.)

Europa Linked Observation Browser 16

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.

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 17

How to make observation data discoverable in the semantic

web?

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 18

Europa Linked Observation

Browser

An overview in 3 steps…

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Interoperability Issue (recap)

Europa Linked Observation Browser 19

O&M

- Water level- Water tempeature- Water salinity- ...

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Step 1 – Solving the discoverability issue.

Europa Linked Observation Browser 20

O&M

- Water level- Water tempeature- Water salinity- ...

Transformation

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Step 2 – Consuming observation measurements

Europa Linked Observation Browser 21

• 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.

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Step 3 – diving into the semantic web(Asking spatial-thematic questions)

Europa Linked Observation Browser 22

• 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)

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 23

An Application Use Case

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Saving Cultural Heritages Europa Linked Observation Browser 24

Users of the Europa Linked Observation Browser

A biblical hero beingrescued! (David)

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.

Europa Linked Observation Browser 25

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Selecting an Observation Property

Europa Linked Observation Browser 26

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Selecting a Sensor

Europa Linked Observation Browser 27

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Viewing one measurementEuropa Linked Observation Browser 28

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Exploring the Semantic WebEuropa Linked Observation Browser 29

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Diving into the Semantic WebEuropa Linked Observation Browser 30

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 31

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

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!

Europa Linked Observation Browser 32

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

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!

Europa Linked Observation Browser 33

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Try it yourself

Europa Linked Observation Browser 34

https://github.com/jimjonesbr/de.ifgi.europa

Everything free and open source!

New to NASA World Wind?

http://ifgi.uni-muenster.de/worldwind-tutorial/

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Imagine a funny joke here...

Europa Linked Observation Browser 35

Name: Alber Sánchez, Matthias Pfeil, Jim Jones

Europa Linked Observation Browser 36

Muito obrigado!Danke Schön!

Gracias!Dziękuję bardzo!