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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

User Working GroupYannis IoannidisUniversity of Athens, Greece

DL.org All Working Groups Meeting, Rome, 26-28 May 2010

overview
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

members projects initiatives
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

user wg objectives and activities
User WG Objectives and Activities

DL.org All Working Groups Meeting, Rome, 26-28 May 2010

4

user interoperability
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

interoperability of dls dlss with respect to users 1 3
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

interoperability of dls dlss with respect to users 2 3
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

interoperability of dls dlss with respect to users 3 3
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

model profile heterogeneity example
Model/Profile Heterogeneity Example
  • [email protected]:
    • “Research Infrastructures”  0.9
    • “Swimming”  0.3
  • [email protected]:
    • “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

user modeling
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

user profiling
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

user context
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

user management
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

interoperability of users
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

collaboration
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

participation
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

privacy
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

slide18

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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