1. Who are the Experts?Simon KampaSlide 1 Who are the Experts? Simon Kampa IAM Group University of Southampton 20001

2. Who are the Experts?Simon KampaSlide 2 Who am I? 3 rd Year Postgraduate Student IAM Group, University of Southampton Supervisor: Dr. Les Carr Research interests: metadata, semantic web, hypertext, ontologies

3. Who are the Experts?Simon KampaSlide 3 Agenda I.Introduction and Background II.Scholarly Research on the WWW III.Improvements IV.ESKIMO V.Conclusion

4. Who are the Experts?Simon KampaSlide 4 Part 1: Introduction In a Nutshell Problem: Scholarly research poorly supported by the WWW PhD work draws from –Hypertext –Ontologies and Inference –Semantic Web

5. Who are the Experts?Simon KampaSlide 5 Background: Hypertext and Scholars Problems with representing discourse Problems with accurately linking a research field Cognitive and information overload, disorientation Need meaningful, structured, and consistent links

6. Who are the Experts?Simon KampaSlide 6 Background: Ontologies “Specification of a conceptualisation” Advantages: communications, system interoperability, consensus, reasoning Disadvantages: time consuming, difficult to agree on a shared understanding

7. Who are the Experts?Simon KampaSlide 7 Background: Semantic Web Automated information access based on machine-processible semantics Architecture contains several layers Intelligent Web Requires technology from several fields –Metadata and parsers –Knowledge modelling –Reasoning services

8. Who are the Experts?Simon KampaSlide 8 Part II: Scholarly Research Computer Science, Physics, … have good literature support on the WWW But, current support duplicates traditional approach Digital libraries and e-journals too literature focused

9. Who are the Experts?Simon KampaSlide 9 Research Research requires systematic investigation of many resources (not only literature) Scholar = Detective Traditionally, very labour intensive task WWW helps, but falls over on: –Search capabilities –Interlinking –Analysis

10. Who are the Experts?Simon KampaSlide 10 ACM Digital Library

11. Who are the Experts?Simon KampaSlide 11 Some Typical Queries What other papers has this author published? What are the prominent papers in agent systems? Which papers give a broader discussion on link semantics? What impact has this project had? Which institutes researching adaptive hypermedia have strong ties? Who are the experts in agent systems?

12. Who are the Experts?Simon KampaSlide 12 Study Study to investigate use of Web for academic research 10 participants received typical research queries Participants behaviour observed Result: e-Scholar is poorly supported

13. Who are the Experts?Simon KampaSlide 13 Other problems … Corpus not available Financial barriers Bibliographic tools Commentary facilities Lack of INTEGRATION

14. Who are the Experts?Simon KampaSlide 14 Part III: Improvements Involve entire scholarly community Interlinking of material Structured and intuitive access to interlinked research information Analysis of research to help solve the intricate queries that scholars make

15. Who are the Experts?Simon KampaSlide 15 More than just literature …

16. Who are the Experts?Simon KampaSlide 16 Interlinking complex fields Linking a complex field is difficult Intricate real-life relationships Combine ontology and hypertext –Ontology: provide the structure and understanding to express relationships –Hypertext: provide the linking mechanism

17. Who are the Experts?Simon KampaSlide 17 Ontological Hypertext Result: intuitive and structured navigation style Queries can now be resolved by following links, rather than issuing queries –Query-by-linking Demonstrated in early prototype and then in the OntoPortal project

18. Who are the Experts?Simon KampaSlide 18 OntoPortal

19. Who are the Experts?Simon KampaSlide 19 OntoPortal

20. Who are the Experts?Simon KampaSlide 20 OntoPortal Framework for creating research portals Definite authoring overhead Successfully implemented in –Metadata portal (DERA contract) –Teaching portal –Icon Directory Provides a basic research environment

21. Who are the Experts?Simon KampaSlide 21 Analysis: Inference Uncover information that the user is otherwise unaware of Simplest example –Reflexive (hasAuthor  hasWritten) More interesting –Which papers has this team published? Complex –Who are the seminal papers?

22. Who are the Experts?Simon KampaSlide 22 (Augmented) Bibliometrics Co-citation, collaboration, impact factors Can combine with new community knowledge –What impact has this research team had? –Which agent projects collaborate? –Which teams are frequently co-cited?

23. Who are the Experts?Simon KampaSlide 23 Part IV: ESKIMO Extends concepts developed earlier Developed scholarly community ontology Added inference abilities Added bibliometric facilities

24. Who are the Experts?Simon KampaSlide 24 The Scholarly Community

25. Who are the Experts?Simon KampaSlide 25 Ontology Representation RDFS used to represent scholarly ontology...

26. Who are the Experts?Simon KampaSlide 26 The System Used ACM HT data from last 13 years as dataset Data cleansing and some manual editing required Resulted in about: –12,000 unique instances –34,000 relationships

27. Who are the Experts?Simon KampaSlide 27 Classifying Hypertext

28. Who are the Experts?Simon KampaSlide 28 Architecture Overview (in 60 seconds)

29. Who are the Experts?Simon KampaSlide 29 ESKIMO

30. Who are the Experts?Simon KampaSlide 30 ESKIMO

31. Who are the Experts?Simon KampaSlide 31 ESKIMO

32. Who are the Experts?Simon KampaSlide 32 ESKIMO

33. Who are the Experts?Simon KampaSlide 33 ESKIMO

34. Who are the Experts?Simon KampaSlide 34 ESKIMO

35. Who are the Experts?Simon KampaSlide 35 ESKIMO

36. Who are the Experts?Simon KampaSlide 36 ESKIMO

37. Who are the Experts?Simon KampaSlide 37 Part V: Conclusions Scholarly research poorly supported by the WWW ESKIMO addresses some of the important issues –Awareness of entire scholarly community –Structured, intuitive interlinking –Ability to resolve the intricate queries we make Questions?