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CYCLADES: A Personalised Collaborative Digital Library Environment

CYCLADES: A Personalised Collaborative Digital Library Environment. Umberto Straccia I.S.T.I. - C.N.R. Pisa (ITALY) Umberto.Straccia@isti.cnr.it. Preface. Typical Digital Libraries (DLs) provide a search service to the web community at large. That means:

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CYCLADES: A Personalised Collaborative Digital Library Environment

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  1. CYCLADES: A Personalised Collaborative Digital Library Environment Umberto Straccia I.S.T.I. - C.N.R. Pisa (ITALY) Umberto.Straccia@isti.cnr.it

  2. Preface • Typical Digital Libraries (DLs) provide a search service to the web community at large. That means: • they rarely provide any personalized support • they do not learn the long-term preferences of a specific user • Usually users access a DL in search of some information and may have overlapping interests if the information available in a DL matches their expectations, backgrounds, or motivations • Very seldom, a DL is considered as collaborative meeting or working places, where users with common interests might well profit from each other • We envisage a Digital Library not only as an information search resource, but also as a collaborative working and meeting space

  3. We will present a personalized collaborative Digital Library environment, where • users may organise the information space according to their own subjective view • may become aware of each other • exchange information and knowledge with each other • sharing opinions • may build communities • may get recommendations based on preference patterns of the users

  4. CYCLADESwww.ercim.org/cycladeshttp://cyclades.ics.forth.gr/Cyclades/LoginForm.htmlCYCLADESwww.ercim.org/cycladeshttp://cyclades.ics.forth.gr/Cyclades/LoginForm.html • EU funded project • about 2.150.000 E • Finishes end of July, 2003 • Objective: Development of a system which provides a personalised collaborative DL environment • This environment will support • Users • Communities (and their members) • Projects (and their members) with functionality for advanced • Search in large, heterogeneous, multidisciplinary digital archives • Personalised Information Space Organisation • Collaboration, Filtering and Recommendation

  5. The Digital Archives of Cyclades • CYCLADES will provide access to the Digital Archives compliant with the Open Archives Initiative (OAI) • CYCLADES will harvest and index records from OAI archives • CYCLADES may also harvest and index text files from other sources FOR MORE INFO... http://www.openarchives.org

  6. OAI: main functionality • List Metadata Identifiers (constraints: from, until, metadata format) • List Metadata Records (constraints: from, until, metadata format) • Get Metadata Record (constraints: identifier, metadata format)

  7. OAI: Get Record Example • ARCHIVE: BioMed Central • Archive details : http://www.biomedcentral.com • Publisher of journals covering all areas of biology and medicine. • http://www.biomedcentral.com/oai/1.1/bmcoai.asp?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:bmc:1471-2148-1-4

  8. <?xml version='1.0' encoding='utf-8'?> ... <record> … <dcxmlns="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://www.openarchives.org/OAI/1.1/dc.xsd"> <title> A genomic timescale for the origin of eukaryotes</title> <creator>S Blair Hedges</creator> <creator>Hsiong Chen</creator> … <description>Abstract Background Genomic sequence analyses have shown that horizontal gene transfer occurred during the origin of eukaryotes as a consequence of symbiosis. However, details of the timing and number of symbiotic events are unclear. A timescale for the early .… </description>… <identifier>http://www.biomedcentral.com/1471-2148/1/4</identifier> </dc> </record>

  9. Our collaborative environment is based on the folder paradigm • users and communities of users may organise the information space into their own folder hierarchy • folder becomes a holder of information items, which are usually semantically related and, thus, implicitly determines what the folder's topic is about

  10. Functionality • Users may perform a set of actions, depending whether they are members of a community or not • At any time, users perform their actions with respect to the current folder • The functionality can be classified into five groups: • folder management • collection management • collaborative support • search • recommendation

  11. Collection management • Include • create, edit, delete • new collections may be defined in terms of others, using meet, join and refinement operators • define the access policies of collections

  12. Collaborative support • Collaboration between users is supported through the possibility of sharing community folders along with their contents and folder structure • Discussion forums may be created within folders to allow informal exchange information • Rating and annotation of data items also may take the form of discussions among the members of a community • Mutual awareness may be supported through event icons (a kind of data item) displayed in the environment • Activity reports that are daily received by email may also be possible. • Also, users may view the list of all existing communities so that they become aware of ongoing community activity

  13. Search • Ad-hoc search: relevant data items are searched • within a set of user specified folders, she has access to • within a specified list of collections, she has access to • Filtered search: this is like to the usual ad-hoc search, except that the user specifies a query and a folder, and the action of the system will be to look for data items relevant both to the query and to the folder (i.e., folder profile)

  14. Recommendation • A user may get recommendations of • data items • collections • users • communities • The recommendations issued are based on • other users' (implicit or explicit) ratings • the similarity between the interests of the user, as represented by a given folder, and the interests of these other users, as represented by their folders • All recommendations are specific to the context of a given user folder

  15. Architecture • Modular • Basic functionality is allocated on servers • Distributed • Servers may be over the Web • Open • new services can easily be added • Simple communication protocol • XML-RPC (SOAP will be evaluated)

  16. END Umberto Straccia Scientific coordinator of CYCLADES straccia@iei.pi.cnr.it www.ercim.org/cycladeshttp://cyclades.ics.forth.gr/Cyclades/LoginForm.html

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