Presentation on theme: "DELOS Highlights COSTANTINO THANOS ITALIAN NATIONAL RESEARCH COUNCIL."— Presentation transcript:
1 DELOS HighlightsCOSTANTINO THANOSITALIAN NATIONAL RESEARCH COUNCIL
2 DELOS: A Network of Excellence on Digital Libraries Funded by the European Commission within the Sixth Framework ProgrammeDuration: 48 Months ( )No. Members: 55Funding: 6 Meuros
3 DELOS: A Network of Excellence on Digital Libraries DELOS coordinates a Joint Programme ofActivities of the major European teams workingin digital library related areas
4 DELOS Vision for Digital Libraries Digital Libraries should enable any citizen to access all human knowledge, any time and anywhere, in a friendly, multi-modal, efficient, and effective way, by overcoming barriers of distance, language, and culture and by using multiple Internet-connected devices
5 DELOS Vision for Digital Libraries (II) The New Generation Digital Libraries should not just be seen as static digital information repositories but as growing, interactively and collaboratively used nuclei of what will be, at some stage, a good part of human knowledge that depends as much on information as on communication
6 DELOS ObjectivesThe main objective of DELOS is to contribute to the development of the enabling technologies so that its Vision for Digital Libraries may become reality
7 DELOS Research Activities Foundational ResearchReference Model for Digital Library SystemsSystems-related ResearchDigital Library Systems ArchitecturesInformation Access to Digital LibrariesAudio/Visual Digital LibrariesSemantic Interoperability in Digital Libraries
8 DELOS Research Activities (II) User-related ResearchUser Interfaces for Digital LibrariesDigital Library VisualizationPersonalization in Digital LibrariesHorizontal IssuesDigital Library Curation and PreservationDigital RepositoriesDigital Library Evaluation MethodologiesDigital Library Evaluation Infrastructures
9 Reference Model for Digital Library Systems Objective:To define a conceptual framework describing the:architecturalfunctionaloperationalbehavioralcharacteristics of Digital Library Systems
10 Digital Library System Architectures The Fundamental Issue addressed:To define an architecture on top of which DL systems can achieve all the desirable performance characteristics:Large-scale information distributionScalabilityAvailabilityRobustnessReliabilityInteroperabilityAdaptabilityetc.
11 Digital Library System Architectures (II) Three Architectural Alternatives:Peer-to-Peer ArchitecturesGrid Middleware based ArchitecturesService-Oriented ArchitecturesDELOS studies all three of these architectural directions and evaluates, analytically and experimentally, their impact on Digital Library System architectures.
12 Information Access to Digital Libraries Although not exclusive as in the past, Information Access will remain a central piece of the functionality of future Digital Libraries.DELOS investigates several research problems broadly categorized as:Problems related to interactions with a single information providerProblems related to integrating information from multiple providers
13 Information Access to Digital Libraries (II) Problem: Information IntegrationDELOS focuses on query routing in complex distributed Digital LibrariesMain questions addressed:How queries are routed through the system and which criteria are used to choose the best nodes to route queries to
14 Audio/Visual Digital Libraries Audio/visual information represents a large percentage of the non-traditional objects that are found in Digital Libraries.Objective:To offer the appropriate functionality over such informationMain topics addressed:Automatic Metadata Extraction from Audio/Visual InformationContent (and Context)-based Multimedia Information Retrieval
15 Semantic Interoperability in Digital Libraries Issue:Techniques for semantic interoperability are very important in reconciling differences among existing collections and presenting them as cohesive wholesApproach:Emphasis on the investigation of methods for the integration of heterogeneous ontologies and domain-specific knowledge organization systems
16 User Interfaces for Digital Libraries Person-centricity of future Digital Libraries puts issues of user interfaces at the center stage of DELOS activities.The objective:To build a theoretical framework for the design of new Digital Library user interfaces and use it to implement advanced user-interface layers in future systems.ApproachEffort is put on developing technology for task-centered user interfaces, which would self-adapt to the task attempted by the user at any one time.
17 User Interfaces for Digital Libraries(II) Collaboration-centric functionality .DELOS puts effort towards the study of annotationsObjectiveTo develop comprehensive annotation models and building compliant systems that will permit users to add their personal opinion, thoughts, and memories to the global Digital Libraries and retrieve those of others.
18 Information Personalization Problem:To adapt system behaviour to diverse user characteristicsEmphasis onestablishing the appropriate foundations for modeling user preferences and more general user context and then using the resulting models to personalize user interactions
19 Curation and Preservation Issue:Need for long-term preservation of Digital Library materialRelevant DELOS work on:Integrating preservation functionality into the overall Digital Library system designDeveloping techniques for automating the process of selection and ingest of materials into a preservation repository
20 Digital Repositories A new strategy in the scholarly communication A set of services that an institution offers to the members of its community for the management and dissemination of digital materials created by the institution membersEmphasis onAccess policy (open access)Operational environmentDigital repository infrastructures
21 EvaluationIssue:Digital Libraries need to be evaluated as systems and as services to determine how useful, usable, and economic they areRelevant DELOS work on:Development of a comprehensive theoretical framework for DL evaluationNew evaluation methodologiesDevelopment of toolkits and testbeds in order to enable new evaluations
22 Evaluation (II) Digital Library Evaluation Infrastructures: Cross-Language RetrievalDigital Libraries contain information in many different languages. Effective access to this information, through interfaces that are equally varied linguistically, is critical to making Digital Libraries widely acceptedThe Cross-Language Evaluation Forum (CLEF) is the main international infrastructure and evaluation framework for cross-language information retrieval
23 Evaluation (III) Digital Library Evaluation Infrastructures: XML Information AccessThe “Initiative for the Evaluation of XML Document Access and Retrieval” (INEX) is an infrastructure and evaluation framework dealing with the performance of systems and services that provides access to XML-based Digital Libraries
24 Dissemination DELOS Digital Library DELOS Web site DELOS Newsletter Research Exchange ProgrammeDELOS International Summer SchoolBrainstorming WorkshopsThematic Workshops
25 DELOS Main Achievements Generation of a set of comprehensive surveys and state-of-the-art reports covering the research areas of the NetworkDevelopment of demonstrators related to the research objectives of the Network.Theoretical work related to the development of models related to the research activities of the Network.Development of infrastructures to support large evaluation campaigns in the field of cross-language retrieval and XML retrieval