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CYCLADES Kickoff 19/02/01 Gudrun Fischer, Norbert Fuhr University of Dortmund (Germany) CYCLADES Acess Service.

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Presentation on theme: "CYCLADES Kickoff 19/02/01 Gudrun Fischer, Norbert Fuhr University of Dortmund (Germany) CYCLADES Acess Service."— Presentation transcript:

1 CYCLADES Kickoff 19/02/01 Gudrun Fischer, Norbert Fuhr University of Dortmund (Germany) CYCLADES Acess Service

2 CYCLADES Kickoff 19/02/01 Recommendation Service Collaborative Work Service Personalization Service Query & Browse Mediator Service Cyclades Mediator Service Collection Service Access Service NDLTD... arXivNCSTRLclinmedRePEc CYCLADES Services

3 CYCLADES Kickoff 19/02/01 Services Independent services + Cyclades Mediator Service For each service: - a well established access protocol - a service description

4 CYCLADES Kickoff 19/02/01 Schemas Collection names Computer Science Search fields author, title, abstract European Computer Science author,title, abstract, country,language Information Seeking

5 CYCLADES Kickoff 19/02/01 Schemas Dublin Core as standard schema Flat structure All attributes set-valued Collection-specific schemas Complex structures possible Require appropriate query language

6 CYCLADES Kickoff 19/02/01 Searching and Browsing Schema Metadata records Attribute values Multilevel Hypertext: Search Browse

7 CYCLADES Kickoff 19/02/01 Browsing Multilevel Browse Schema level DC, MARC, … Attribute value level author s name, author s names orthographically similar to a given name, … Document level result set sorted by date, grouped by archive, …

8 CYCLADES Kickoff 19/02/01 Background Technology HyREX (Hypermedia Retrieval Engine for XML) Retrieval engine for XML documents Supports vagueness and imprecision (vague predicates, term weighting, ranking) OAI Gathering interface already implemented Used for German/European OAs EMPRESS, PhysDoc

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