1. Semantic Interoperability and Retrieval Paradigms
Paradigms and conceptual systems in KO
February 23, 2010 – February 26, 2010
Felix Boteram
Prof. Winfried Gödert
Jessica Hubrich

2. Retrieval
Focussed search
Expansion
Exploration 2

3. Knowledge
organization
systems
Classifications
Thesauri
Semantic networks
Ontologies
Retrieval

4. Technical Structural Semantic Interoperability Knowledge organization
systems
Retrieval 4

5. Semantic
interoperability 5

6. Semantic
interoperability
Retrieval 6

7. Overall model for semantic interoperability
Aims
Strategies for retrieval and exploration in distributed systems
Integration of structurally and typologically different systems
Overall system consisting of an ontological spine and attached satellites
Features
Simple hierarchical core system
Detailed bilateral mappings
Expressive multidimensional definition of intersystem and interconcept relations
Shared inventory of standard relations 7

8. SWSWD SWLCSH Core System*) Possible extensions with satellites
Syn.
Syn.
Syn.
SWS
SWL
Syn.
Syn.
Syn.
Syn.
Syn.
SWSWD
SWS
SWLCSH
SWL
Syn.
Core System*)
SWS
SWS
SWL
SWL
Syn.
Syn.
Localized semantic networks
with typed relations as link
to the ontological spine
Possible extensions
with satellites
Syn.
SWR
SWxy
SWRameau
Syn.
Syn.
Syn.
Syn.
SWxy
SWR
SWxy
Syn.
Syn.
Syn.
SWR
SWR 8
SWxy
SWxy
Syn.
Syn.
Syn. 8

9. Retrieval paradigms Thematic exploration Conceptual exploration
Conceptual query
Simple pattern matching
„TREE“ 9

10. Levels of interoperability
Enhanced conceptual interoperability
Conceptual interoperability
Basic interoperability
„TREE“ 10

11. Basic interoperability
Simple pattern matching
„TREE“
Features
Easy implementation
No indexing languages required
Limited access and limited search functionalities
No modification / expansion possible
Methods
Mapping on word level
Unspecified one-to-one equivalences represented in a
simple cross-concordance. 11

12. Basic interoperability
Simple pattern matching

13. Conceptual interoperability
Conceptual query
Features
Focus on the conceptual level
Multiple access points via synonyms
Structural transparency
Simple expansion strategies
Methods
Mapping concepts independently from their actual representation in the various indexing languages.
Structural and typological differences should be taken into account. 13

14. Conceptual interoperability
Conceptual query

15. Enhanced conceptual interoperability
Conceptual exploration
Features
Modification / expansion of queries
Conceptual exploration of a knowledge field
Query-clarification as a useful pre-search mechanism
Requirements
Various types of expressive semantic relations have to be specified in great detail.
Well-structured relational inventories
Control- and selection-mechanisms to handle the complexity of the relational structure 15

16. Enhanced conceptual interoperability
Conceptual exploration
Methods
Differentiated conceptual mappings
Interpretation of the semantically enhanced relational structure
Relations between concepts have to be specified 16

17. Enhanced conceptual interoperability
Conceptual exploration

18. 18

19. 19

20. 20

21. SWSWD SWLCSH Core System*) Possible extensions with satellites
Syn.
Syn.
Syn.
SWS
SWL
Syn.
Syn.
Syn.
Syn.
Syn.
SWSWD
SWS
SWLCSH
SWL
Syn.
Core System*)
SWS
SWS
SWL
SWL
Syn.
Syn.
Localized semantic networks
with typed relations as link
to the ontological spine
Possible extensions
with satellites
Syn.
SWR
SWxy
SWRameau
Syn.
Syn.
Syn.
Syn.
SWxy
SWR
SWxy
Syn.
Syn.
Syn.
SWR
SWR
SWxy
SWxy
Syn.
Syn.
Syn. 21

22. Thank you for your attention
Prof. Winfried Gödert
Felix Boteram
Jessica Hubrich
Institute of Information Management (IIM)
Cologne University of Applied Sciences