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User Working Group Yannis Ioannidis University of Athens, Greece

User Working Group Yannis Ioannidis University of Athens, Greece. DL.org All Working Groups Meeting, Rome, 26-28 May 2010. Overview. Members, Projects/Initiatives User WG Objectives and Activities User Interoperability Interoperability of DLs/DLSs with respect to users User Modeling

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User Working Group Yannis Ioannidis University of Athens, Greece

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  1. User Working GroupYannis IoannidisUniversity of Athens, Greece DL.org All Working Groups Meeting, Rome, 26-28 May 2010

  2. Overview Members, Projects/Initiatives User WG Objectives and Activities User Interoperability Interoperability of DLs/DLSs with respect to users User Modeling User Profiling User Context User Management Interoperability of Users Collaboration Participation Privacy DL.org All Working Groups Meeting, Rome, 26-28 May 2010 2

  3. Members, Projects/Initiatives User Working Group members • Tiziana Catarci, Sapienza University of Rome • Yannis Ioannidis, University of Athens (Scientific Chair) • Akrivi Katifori, University of Athens (Working Group Leader) • Georgia Koutrika, Stanford University • Natalia Manola, University of Athens • Anna Nika, University of Athens (Rapporteur) • Andreas Nürnberger, University of Magdeburg • Paul Polydoras, University of Athens • Manfred Thaller, University of Cologne Project involved in the Working Group • D4Science • DRIVER-II • Papyrus • Planets DL.org All Working Groups Meeting, Rome, 26-28 May 2010 3

  4. User WG Objectives and Activities DL.org All Working Groups Meeting, Rome, 26-28 May 2010 4

  5. User Interoperability User Interoperability Definition Interoperability of DLs/DLSswith regard to what is captured within each DL/DLS about users Interoperability of usersthrough their use of the DL/DLS User Interoperability Issues Interoperability of DLs/DLSs with respect to users user modeling, user profiling, user context, user management Interoperability of users collaboration, participation, privacy DL.org All Working Groups Meeting, Rome, 26-28 May 2010 5

  6. Interoperability of DLs/DLSs with respect to users (1/3) • The “object” of interoperation • can be arbitrary • can be an attribute of the user (e.g., user credentials, user demographics) • can be simple (e.g., keywords) • or complex in structure (e.g. ontologies, queries, layouts) • can be at the data or at the model/schema level DL.org All Working Groups Meeting, Rome, 26-28 May 2010 6

  7. Interoperability of DLs/DLSs with respect to users (2/3) • The “purpose” of interoperation • preserving user characteristics across systems (transparent user mobility from one system to the next) • mapping user characteristics from one system to the next (non-transparent user mobility) • integrating user characteristics maintained about the same user in two different systems DL.org All Working Groups Meeting, Rome, 26-28 May 2010 7

  8. Interoperability of DLs/DLSs with respect to users (3/3) • Use cases by combining “objects” and “purposes” • consolidating a user’s preferences as perceived from his/her presence in multiple systems • retaining the user’s access rights as the system transfers him/her to another system • … DL.org All Working Groups Meeting, Rome, 26-28 May 2010 8

  9. Model/Profile Heterogeneity Example • Donatella@DL1: • “Research Infrastructures”  0.9 • “Swimming”  0.3 • Donatella@DL2: • “Research Infrastructures” ≤ “Swimming” • Contradicting or Incomparable? • Context dependent? • Reconciliation approach? • E.g., More info and stronger statement in DL1 DL.org All Working Groups Meeting, Rome, 26-28 May 2010 9

  10. User Modeling • User modeling: creating a user model for a DL that represents essential information about users • Interoperable user models: enable propagation of user information across different DLs • State-of-the-art approaches/best practices • Shared Format Approach, e.g., General User Model Ontology (GUMO) • Conversion Approach, e.g., Schema Mapping of Generic User model Component (GUC) DL.org All Working Groups Meeting, Rome, 26-28 May 2010 10

  11. User Profiling • User profiling: collecting information about a user in order to generate user's profile, depending on the current user model • User profiling interoperability: supporting mechanisms of reconciliation of different/conflicting user profile characteristics • State-of-the-art approaches/best practices • Instance Mapping of Generic User model Component (GUC) DL.org All Working Groups Meeting, Rome, 26-28 May 2010 11

  12. User Context • User context: “external” factors affecting user profiles regarding user interactions with a DL • User context interoperability: supporting compliant context descriptions and interpreting user information in a concrete way given the same context • State-of-the-art approaches/best practices • Unified User Context Model (UUCM) • Context-passport based on UUCM for cross-system personalization DL.org All Working Groups Meeting, Rome, 26-28 May 2010 12

  13. User Management • User management: managing electronic identities that are strongly associated to users' privileges • User management interoperability: heterogeneous DL systems apply concrete, shared, but transparent to the end-user authentication and authorization policies • State-of-the-art approaches/best practices • OpenID • Security Assertion Markup Language (SAML) • eXtensible Access Control Markup Language (XACML) DL.org All Working Groups Meeting, Rome, 26-28 May 2010 13

  14. Interoperability of Users • Through the DL, users are able to • collaborate • communicate • cooperate • The DLS supports them in • knowledge sharing • sense making • identifying new and/or hidden semantics • The DLS preserves user privacy and generates a sense of trust DL.org All Working Groups Meeting, Rome, 26-28 May 2010 14

  15. Collaboration • User collaboration: enabling users to directly interact and collaborate with each other or implicitly benefit from the actions of other users in a DL or across different DLs • State-of-the-art approaches • Indirect collaboration, e.g., collaborative-based filtering, usage statistics, annotations, tags, rankings • Direct collaboration, e.g., collaborative tools such as chat, forums DL.org All Working Groups Meeting, Rome, 26-28 May 2010 15

  16. Participation • User participation: engaging users in active participation in the evolution of a DL, both at the content and the operational level • State-of-the-art approaches • Social networks • Flickr Commons (partner w/ Library Congress + 15 other institutions) • Noosphere serving as the PlanetMath project's software platform DL.org All Working Groups Meeting, Rome, 26-28 May 2010 16

  17. Privacy • User privacy: controlling the degree to which user make information about their interests and activities public in the context of user communities that DLs support • State-of-the-art approaches • SemWebDL, that enables the dynamic composition of disparate and autonomous digital libraries while preserving user’s privacy DL.org All Working Groups Meeting, Rome, 26-28 May 2010 17

  18. Thank you! https://workinggroups.wiki.dlorg.eu/index.php/User_Working_Group DL.org All Working Groups Meeting, Rome, 26-28 May 2010

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