Recommender Systems for Social Tagging Systems

1. Front Matter

   Pages i-ix

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2. Foundations

   1. Front Matter

      Pages 1-1

      PDF

   2. Social Tagging Systems

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 3-15

   3. Recommender Systems

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 17-29

3. Recommendation Techniques for Social Tagging Systems

   1. Front Matter

      Pages 31-31

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   2. Baseline Techniques

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 33-42

   3. Advanced Techniques

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 43-74

   4. Offline Evaluation

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 75-80

4. Implementing Recommender Systems for Social Tagging

   1. Front Matter

      Pages 81-81

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   2. Real World Social Tagging Recommender Systems

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 83-95

   3. Online Evaluation

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 97-108

   4. Conclusions

      • Leandro Balby Marinho, Andreas Hotho, Robert Jäschke, Alexandros Nanopoulos, Steffen Rendle, Lars Schmidt-Thieme et al.

      Pages 109-111

Social Tagging Systems are web applications in which users upload resources (e.g., bookmarks, videos, photos, etc.) and annotate it with a list of freely chosen keywords called tags. This is a grassroots approach to organize a site and help users to find the resources they are interested in. Social tagging systems are open and inherently social; features that have been proven to encourage participation. However, with the large popularity of these systems and the increasing amount of user-contributed content, information overload rapidly becomes an issue. Recommender Systems are well known applications for increasing the level of relevant content over the “noise” that continuously grows as more and more content becomes available online. In social tagging systems, however, we face new challenges. While in classic recommender systems the mode of recommendation is basically the resource, in social tagging systems there are three possible modes of recommendation: users, resources, or tags. Therefore suitable methods that properly exploit the different dimensions of social tagging systems data are needed. In this book, we survey the most recent and state-of-the-art work about a whole new generation of recommender systems built to serve social tagging systems. The book is divided into self-contained chapters covering the background material on social tagging systems and recommender systems to the more advanced techniques like the ones based on tensor factorization and graph-based models.

• Folksonomy
• Multimode Recommendations
• Recommender Systems
• Social Tagging
• Tag-Aware Recommendations

From the reviews:

“The book is a useful contribution towards harnessing crowd sourced descriptions by using recommender systems as it epitomises the long experience of the majority of the authors in social tagging systems … . the engaged researcher in the area will benefit from reading this book in that it provides a good orientation over state-of-the-art approaches and techniques for building recommender systems in order to harness the innate variety of crowd sourced annotations and tags.” (Cathal Gurrin, Informer, July, 2013)

• , Systems and Computing Department, Federal University of Campina Grande, Campina Grande-PB, Brazil

  Leandro Balby Marinho

• , Knowledge & Data Engineering Group, University of Kassel, Kassel, Germany

  Andreas Hotho, Robert Jäschke, Gerd Stumme

• , Information Systems, University of Hildesheim, Hildesheim, Germany

  Alexandros Nanopoulos

• , Social Network Analysis, University of Konstanz, Konstanz, Germany

  Steffen Rendle

• , Information Systems, University of Hildesheim, Hildesheim, Germany

  Lars Schmidt-Thieme

• , Department of Informatics, Aristotle University, Thessaloniki, Greece

  Panagiotis Symeonidis

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