Golbeck Computing with Social Trust

1. Auflage 2008
ISBN: 978-1-84800-356-9
Verlag: Springer-Verlag
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 336 Seiten

This book has evolved out of roughly ve years of working on computing with social trust. In the beginning, getting people to accept that social networks and the relationships in them could be the basis for interesting, relevant, and exciting c- puter science was a struggle. Today, social networking and social computing have become hot topics, and those of us doing research in this space are nally nding a wealth of opportunities to share our work and to collaborate with others. This book is a collection of chapters that cover all the major areas of research in this space. I hope it will serve as a guide to students and researchers who want a strong introduction to work in the eld, and as encouragement and direction for those who are considering bringing their own techniques to bear on some of these problems. It has been an honor and privilege to work with these authors for whom I have so much respect and admiration. Thanks to all of them for their outstanding work, which speaks for itself, and for patiently enduringall my emails. Thanks, as always, to Jim Hendler for his constant support. Cai Ziegler has been particularly helpful, both as a collaborator, and in the early stages of development for this book. My appreciation also goes to Beverley Ford, Rebecca Mowat and everyone at Springer who helped with publication of this work.

Autoren/Hrsg.

Golbeck, Jennifer

Inhaltsverzeichnis

1;Preface;6
2;Contents;7
3;Contributors;9
4;Introduction to Computing with Social Trust;11
4.1;1.1 The Need for Social Trust;11
4.2;1.2 Challenges to Computing with Social Trust;12
4.3;1.3 Future Questions;14
4.4;1.4 Conclusions;15
4.5;References;15
5;Models of Social Trust;16
5.1;Examining Trust, Forgiveness and Regret as Computational Concepts;17
5.1.1;2.1 Introduction;17
5.1.2;2.2 Why Is Trust Important? Why a Formalization?;20
5.1.3;2.3 A Parable of the Modern Age;21
5.1.4;2.4 Trust as Was;23
5.1.5;2.5 What Can’t Trust Give Us?;26
5.1.6;2.6 Trust as Is, Part Zero: The Dark Side;27
5.1.7;2.7 Regret;30
5.1.8;2.8 Trust as Is, Part One: Building Regret into Trust;35
5.1.9;2.9 Forgiveness and the Blind and Toothless;36
5.1.10;2.10 Trust as Is, Part Two: The Incorporation of Forgiveness;39
5.1.11;2.11 Applications: Revisiting the Parable and Imagining the Future;40
5.1.12;2.12 RelatedWork;46
5.1.13;2.13 Trust as Will Be: Future Work and Conclusions;46
5.1.14;References;47
5.2;A Non-reductionist Approach to Trust;52
5.2.1;3.1 Introduction;52
5.2.2;3.2 Desiderata for a Logical Model of Social Trust;53
5.2.3;3.3 A Logic for Trust Reasoning;54
5.2.4;3.4 A formal Ontology of Trust;64
5.2.5;3.5 Comparative Trust;76
5.2.6;3.6 Conclusion;77
5.2.7;References;78
5.3;Social Trust of Virtual Identities;80
5.3.1;4.1 Introduction;80
5.3.2;4.2 Flawed Trust Computation Due to Simplistic Identity Approach;85
5.3.3;4.3 Entification: Bridging Trust and Virtual Identities;94
5.3.4;4.4 Entification Framework Evaluation;108
5.3.5;4.5 Conclusion;121
5.3.6;References;121
6;Propagation of Trust;126
6.1;Attack-Resistant Trust Metrics;127
6.1.1;5.1 Introduction;127
6.1.2;5.2 Attack Resistance;128
6.1.3;5.3 Group Trust Metric;130
6.1.4;5.4 Implementation in Advogato;133
6.1.5;5.5 Eigenvector Trust Metrics;134
6.1.6;References;137
6.2;On Propagating Interpersonal Trust in Social Networks;139
6.2.1;6.1 Introduction;139
6.2.2;6.2 Trust in Social Networks;141
6.2.3;6.3 Local Group Trust Metrics;148
6.2.4;6.4 Distrust;165
6.2.5;6.5 Discussion;171
6.2.6;References;172
6.3;The Ripple Effect: Change in Trust and Its Impact Over a Social Network;175
6.3.1;7.1 Introduction;175
6.3.2;7.2 Trust Inference Algorithms;177
6.3.3;7.3 Algorithms Studied;178
6.3.4;7.4 Experimental Setup;181
6.3.5;7.5 Results;182
6.3.6;7.6 Discussion and Conclusions;185
6.3.7;References;186
7;Applications of Trust;188
7.1;Eliciting Informative Feedback: The Peer-Prediction Method;189
7.1.1;8.1 Introduction;189
7.1.2;8.2 A Mechanism for Eliciting Honest Feedback;192
7.1.3;8.3 Extensions;199
7.1.4;8.4 Issues in Practical Application;204
7.1.5;8.5 Conclusion;210
7.1.6;Appendix A: Proofs;210
7.1.7;Appendix B: Eliciting Effort;212
7.1.8;References;215
7.2;Capturing Trust in Social Web Applications;217
7.2.1;9.1 Introduction;218
7.2.2;9.2 Research on Trust in the Social Web;219
7.2.3;9.3 Trust Sources on the Social Web;221
7.2.4;9.4 Source 1: Modelling Trust from Ratings in ACF Recommender Systems;224
7.2.5;9.5 Source 2: Extracting Trust From Online Auction Feedback Comments;235
7.2.6;9.6 Evaluation;239
7.2.7;9.7 Discussion;244
7.2.8;9.8 Source 3: Extracting Trust through an Interactive Interface;245
7.2.9;9.9 Evaluation;251
7.2.10;9.10 Comparison of Different Trust Sources;257
7.2.11;9.11 Conclusions;259
7.2.12;References;260
7.3;Trust Metrics in Recommender Systems;262
7.3.1;10.1 Introduction;262
7.3.2;10.2 Motivations;263
7.3.3;10.3 Our Proposal: Trust-Aware Recommender Systems;268
7.3.4;10.4 Empirical Validation;274
7.3.5;10.5 Discussion of Results;286
7.3.6;10.6 Conclusions;287
7.3.7;References;287
7.4;Trust and Online Reputation Systems;289
7.4.1;11.1 Introduction;289
7.4.2;11.2 The ComplexWorld of Online Trust;290
7.4.3;11.3 Web 1.0 vs. Web 2.0;292
7.4.4;11.4 The New Model of Online Trust;293
7.4.5;11.5 Reputation;293
7.4.6;11.6 Relationship;296
7.4.7;11.7 Process;306
7.4.8;11.8 A Recipe for Online Trust Based on Three Ingredients;310
7.4.9;References;312
7.5;Internet-Based Community Networks: Finding the Social in Social Networks;314
7.5.1;12.1 Introduction;314
7.5.2;12.2 Defining Community in the Age of Social Networks;315
7.5.3;12.3 Visualising Community;316
7.5.4;12.4 Communities, Groups and Networks;325
7.5.5;12.5 Community Trust;325
7.5.6;12.6 Conclusion;329
7.5.7;References;330
8;Index;333