Online social networks collect information from users' social contacts
and their daily interactions (co-tagging of photos, co-rating of
products etc.) to provide them with recommendations of new products or
friends. Lately, technological progressions in mobile devices (i.e.
smart phones) enabled the incorporation of geo-location data in the
traditional web-based online social networks, bringing the new era of
Social and Mobile Web. The goal of this book is to bring together
important research in a new family of recommender systems aimed at
serving Location-based Social Networks (LBSNs). The chapters introduce a
wide variety of recent approaches, from the most basic to the
state-of-the-art, for providing recommendations in LBSNs.
The book is organized into three parts. Part 1 provides introductory
material on recommender systems, online social networks and LBSNs. Part
2 presents a wide variety of recommendation algorithms, ranging from
basic to cutting edge, as well as a comparison of the characteristics of
these recommender systems. Part 3 provides a step-by-step case study on
the technical aspects of deploying and evaluating a real-world LBSN,
which provides location, activity and friend recommendations. The
material covered in the book is intended for graduate students,
teachers, researchers, and practitioners in the areas of web data
mining, information retrieval, and machine learning.