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Semantic Technology

Application Show Cases

Atilla ELÇİDept. of Computer Engineering

Eastern Mediterranean University

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SemTech Applications Show case application of SemTech to

Digital Library SemTech’s role in meeting challenges Davies et al. Ch. 11.

PS: Take home MT: Review & Qs.

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Current Digital Libraries Samples:

ACM Member DL Free libs:

Project Gutenberg: e-books of all genres. Open Library by the Internet Archive: to showcase how and provide

free. Wikipedia You Tube? Etc.

Free digital library software: Greenstone DL with UNESCO’s support OpenDLib Search engine as DL: Google Scholar Wiki as DL: Wikibooks: Wikimedia Project free textbook project.

Free Digital Libraries Directory?

Let’s put together a list of digital libraries offering free e-material.

Organize the list using semantic technology.

Build i/f for human reader and software agents.

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DL Challenges Key research areas by Digital Libraries Workshop

(1995): Interoperability:

Software and systems Semantic: mapping ontologies

Description of objects and repositories Collection and management of non-textual information User interfaces Economic, social and legal issues.

SemTech contribution to above: Where and How? Newer research findings?

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DL Research Specific purpose projects:

Alexandria Digital Earth Project: geospatial data PERSIVAL: medical data VARIATIONS: music EULER: math.

Generic research projects: Perseus DL Project: humanities source material. Renardus Service of 5th FP IST Project: integrated search &

browse access to records through gateway services. Scuplteur: semantic & content-based multimedia mngt:

There is an ontology to describe the objects Crawler searches web for more

6th FP DELOS: “the next generation of DL technologies” 6th FP BRICKS: upto “open, user- and service-oriented

infrastructure for sharing knowledge & resources”.

DELOS Aimed for th ‘Next generation of DL tech.’ Architecture has seven clusters:

Knowledge extraction and semantic interoperability

Info access and personalization User interface and personalization ...

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A Case Study: The BT DL (Sect. 11.3)

Enhancing the Library w/SemTech (SEKT Project): Richer Metadata:

ABI/INFORM from ProQuest: 8 K terms vocabulary IEEE INSPEC: 9 K terms

Enhanced User Profiling: Personalization In-fulltext search and annotation

Enhancing: searching, browsing, displaying results, connecting people/ideas

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The User’s View Sect. 11.4

SemTech to DL’s Rescue: (Sect. 11.5)

BT DL Run-Time Architecture: 5-Layer Architecture:

Persistence Layer Semantic Layer:

PROTo Ontology Proton Dublin Core OWL

Integration Layer: Building appls using components of SEKT Integration Platform (SIP)

End-User Appls Layer: Appls built using SIP, such as the following Semantic search & browse Knowledge sharing Personal search agent Semantic info spaces (search-based carry over from original BT DL)

Presentation Layer

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SemTech to DL’s Rescue: (Sect. 11.5)

SemTech-Based DL: Future Trends

Open source Open content Publically collaborated development and upkeep Rich metadata Ontology-based Personalized Distributed, localized Push or pull? Imploys SemTech tools:

Ontology evolution, Content gathering Search Presentation ...

Your call?

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References John Davies, Rudi Studer, Paul Warren (Editors): Semantic

Web Technologies: Trends and Research in Ontology-based Systems, John Wiley & Sons (July 11, 2006). ISBN: 0470025964. Ch. 11.: pp. 237-257.

W3C Semantic Web Best Practices and Deployment Working Group home page.

W3C SW Applications & Demos Task Force. SemanticWebDOAPBulletinBoard W3C Semantic Web Tools Wiki page:

Check Jena, SemWeb, Protégé, Swoop, etc.