A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION

RETRIEVAL AND ITS ROLE WITHIN SPATIAL

DATA INFRASTRUCTURES

Krzysztof Janowicz1, Marc Wilkes1, and Michael Lutz2

1 Institute for Geoinformatics, University of Muenster, Germany{janowicz|marc.wilkes}@uni-muenster.de

2 European Commission – Joint Research CentreInstitute for Environment and Sustainability, Ispra, Italy

michael.lutz@jrc.it

GIScience 2008

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

1 A WALK IN THE PARK

2 SEMANTICS-BASED INFORMATION RETRIEVAL

3 INFORMATION RETRIEVAL PARADIGMS

4 USER INTERFACES

5 ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SOMETIME IT NEEDS A WALK IN THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

THE ’SIMILARITY-BASED RETRIEVAL’ - PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

1 A WALK IN THE PARK

2 SEMANTICS-BASED INFORMATION RETRIEVAL

3 INFORMATION RETRIEVAL PARADIGMS

4 USER INTERFACES

5 ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SOME KEY TERMS

The intended concept (Ci ) represents exactly the information theuser is looking for (without a direct mapping in the queried ontology).

The search concept (Cs) is the concept actually used in the search(intensional search).

The target concepts (Ct ) are the set of concepts to which thesearch is applied.

The reference individuals (Ir ) allow for a query-by-example(extensional search).

→ The result of a query, i.e., the concepts or individuals returned to theuser, is the better the more accurate Cs approximates Ci . In the idealcase, Cs would be equal to Ci .

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SUBSUMPTION AND SIMILARITY-BASED RETRIEVAL

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SUBSUMPTION AND SIMILARITY-BASED RETRIEVAL

WaterBody ≡ . . . u HydrographicFeature u . . .

Canal ≡ . . . uWaterBody u (≥ 2 connects.Waterbody) u . . .

River ≡ . . . uWaterBody u (∃hasOrigin.Spring) u (∃hasDestination.Waterbody) u . . .

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SUBSUMPTION AND SIMILARITY-BASED RETRIEVAL

Canal ≡ . . . uWaterBody u (≥ 2 connects.Waterbody) u . . .

River ≡ . . . uWaterBody u (∃hasOrigin.Spring) u (∃hasDestination.Waterbody) u . . .

ABC ≡ . . . u XYZ u (≥ 2 connects.Waterbody) u . . .

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SUBSUMPTION AND SIMILARITY-BASED RETRIEVAL

’Compare different types of water bodies for similarity.’

How to integrate the context concept into a user interface?

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

1 A WALK IN THE PARK

2 SEMANTICS-BASED INFORMATION RETRIEVAL

3 INFORMATION RETRIEVAL PARADIGMS

4 USER INTERFACES

5 ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SUBSUMPTION-BASED INFORMATION RETRIEVAL PARADIGMS

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL PARADIGMS

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

1 A WALK IN THE PARK

2 SEMANTICS-BASED INFORMATION RETRIEVAL

3 INFORMATION RETRIEVAL PARADIGMS

4 USER INTERFACES

5 ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

INTER-CONCEPT SIMILARITY-BASED RETRIEVAL

demo & source code: http://sim-dl.sourceforge.net/applications/

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

INTER-INSTANCE SIMILARITY-BASED RETRIEVAL

demo & source code: http://sim-dl.sourceforge.net/applications/

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

COMBINED SIMILARITY-BASED RETRIEVAL

Not implemented yet.

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

1 A WALK IN THE PARK

2 SEMANTICS-BASED INFORMATION RETRIEVAL

3 INFORMATION RETRIEVAL PARADIGMS

4 USER INTERFACES

5 ... LEAVING THE PARK

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SPATIAL DATA INFRASTRUCTURES?

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

SPATIAL DATA INFRASTRUCTURES

... integration into the Geospatial Semantic Web.

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ

A WALK IN THE PARK SEMANTICS-BASED INFORMATION RETRIEVAL INFORMATION RETRIEVAL PARADIGMS USER INTERFACES ... LEAVING THE PARK

QUESTIONS?

Thank you!SimCat Project Website: http://sim-dl.sourceforge.net

The SIM-DL server, plug-in and user interfaces are free and open source software andcan be downloaded at the SimCat project website.

SIMILARITY-BASED INFORMATION RETRIEVAL JANOWICZ, WILKES, AND LUTZ