Donatella Castelli Istituto di Elaborazione della Informazione – CNR Pisa (Italy)

1. Donatella Castelli Istituto di Elaborazione della Informazione – CNR Pisa (Italy)

2. General information • Funding programme EU 5FP - Action III-Multimedia Content and Tools • Effort: 205 p/m • Duration: 30 months • Commencement date:February 2001 OAI Open Day for Europe

3. General information Participants • CNR (Italy, scientific coordinator) • FORTH (Greece) • GMD (Germany) • University of Dortmund (Germany) • ERCIM (France, administrative coordinator) OAI Open Day for Europe

4. Objective Develop an open service archive environment composed by a set of interoperableservices able to support scholars • in interacting with multi-disciplinary archives • as members of networked peer communities OAI Open Day for Europe

5. Design decisions Cyclades environment Common Interface Common Interface Common Interface Archive1 Archive2 ArchiveN Built on top of the metadata harvesting layer established by the OAI protocol OAI Open Day for Europe

6. Cyclades Mediator Service Collaborative Work Service Recommendation Service Query & Browse Mediator Service Personalization Service Collection Service Access Service Design decisions Independent services + Cyclades Mediator Services For each service: - a well established access protocol - a precise service description OAI Open Day for Europe

7. Cyclades end-user functionality OAI Open Day for Europe

8. Collection names Collection descriptions Computer Science documents in “computer science” domain Recent Physics documents in “physics” domain stored in ArXiv and PhysNet, published after 1990 ……. ……. Virtual Collections • The user perceives an information space structured into a set of collections OAI Open Day for Europe

9. Collection names Operations Computer Science simple search, attribute-based search European Computer Science attribute-based search, cross-language search, … Virtual Collections simple-search Input: “keywords in the abstract” Preconditions: keywords in English Output:set of <document.id,author,title> Effect:”returns the specified output for all the documents that contains the given keywords in their abstract” • A set of specific operations is available for eachcollection OAI Open Day for Europe

10. create.collection() Virtual Collections Composition • The set of collections is dynamic dd /(C1, C2, …,Cn)cond(d) Selection based on description of the collection Restriction on the document metadata fields Time 0: one collection for each Cyclades harvested repository OAI Open Day for Europe

11. Result Collection names Search fields Computer Science author, title title= …. abstract = author.name =.. English.title= … English.abstract = … local.language.abstract= European Computer Science author,title country,language Information seeking • Search OAI Open Day for Europe

12. Author Abstract Title ... Schema Castelli Straccia Thanos ... Straccia.02.03.2000 Title = …. Publisher = IEI-CNR Straccia.15.03.2000 Straccia.24.04.2000... Attribute values Metadata records Information seeking • Multilevel Browse INRIA GMD IEI-CNR CNUCE-CNR ... OAI Open Day for Europe

13. Donatella’s folder Metadata Digital Libraries Education Tourism Personalisation • The user creates a personal, dynamic hierarchy of folders for the storage of the records that match his information needs • The system learns user’s information needs (user profiling) by observingthe content of the folders, their organisation and the user behaviour OAI Open Day for Europe

14. Donatella’s folder Digital Libraries Metadata Education Tourism Personalisation • New data is classified into the right topic folder automatically The efficiency of the classifier may be improved by exploiting contextual information (e.g. the searching collection) OAI Open Day for Europe

15. Users get recommendations aboutnew documents and new collections that the system judges relevant according to: • the specific user information needs • the “similar users” information needs • Donatella: • (content based and collaborative) Recommender • By observing the behaviour of the users and their profiles the system identifies “similar users” OAI Open Day for Europe

16. Shared working space Very interesting doc To be read Cooperative Work • A shared working space can be created by groups referencing: • user own documents • collections • recommendations, related links, textual annotations, ratings, … OAI Open Day for Europe

17. Will we be able to build a quality service on the OAI low barrier interoperability framework? OAI Open Day for Europe

18. An example • Collection description is used by: • the end-user to select the collection of interest • the collection administrator to select the collections required to build a new collection • the document classifier to increase efficiency • the recommender system to provide information about new collections OAI Open Day for Europe

19. An example • What should a collection description contain: • content descripton • subject • coverage • metadata formats • metadata language • content format • digitalized content yes/no • … OAI Open Day for Europe

20. An example • Collection content description: we need to rely on the document description DC fields are optional • Collection subject: we need to know if the term in the subject field is a classification code, a free term, or term of a controlled vocabulary – the controlled vocabulary – the language of the terms DC is unqualified OAI Open Day for Europe

21. Will be Cyclades a service for a subset of the OAI registered archives? OAI Open Day for Europe

22. Background Tecnology • Browse - Desire (University of Dortmund) • Personalisation - EUROgatherer (CNR) • Cooperative work – CSCW, Cookpit (GMD) OAI Open Day for Europe

23. Cooperative Work • A group of users that often access similar documents may enter into a long term relationship and eventually evolve into a working group (if only they become aware of each other) OAI Open Day for Europe