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Provision of personalized recommendations to users
requires accurate modeling of their interests and
needs. This book presents a general framework and
specific methodologies for enhancing the accuracy of
user modeling in recommender systems by importing and
integrating data collected by other recommender
systems. Such a process is defined as the mediation
of user models and user modeling data. This book
discusses the details of the generic user modeling
mediation framework, provides a user modeling data
representation model, demonstrates the compatibility
of the model with existing...

This book constitutes the refereed proceedings of the 8th International Conference on Persuasive Technology, PERSUASIVE 2013, held in Sydney, NSW, Australia, in April 2013. The 16 revised full papers and 12 revised short papers presented were carefully reviewed and selected from 47 submissions. The papers address not only typical persuasive domains like health and environment, but also cover emerging research topics, such as data safety and evaluation of persuasive technologies.

Ubiquitous user modeling differs from generic user modeling by three additional concepts: ongoing modeling, ongoing sharing, and ongoing exploitation. Systems that share their user models will improve the coverage, the level of detail, and the reliability of the integrated user models and thus allow better functions of adaptation. Ubiquitous user modeling implies new challenges of interchangeability, scalability, scrutability, and privacy. This volume presents results of a series of workshops on the topic of Ubiquitous User Modeling since 2003 and additional workshops at various other...