Social Sensing - 1st Edition - ISBN: 9780128008676, 9780128011317

Social Sensing

1st Edition

Building Reliable Systems on Unreliable Data

Authors: Dong Wang Tarek Abdelzaher Lance Kaplan
eBook ISBN: 9780128011317
Paperback ISBN: 9780128008676
Imprint: Morgan Kaufmann
Published Date: 23rd March 2015
Page Count: 232
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Increasingly, human beings are sensors engaging directly with the mobile Internet. Individuals can now share real-time experiences at an unprecedented scale. Social Sensing: Building Reliable Systems on Unreliable Data looks at recent advances in the emerging field of social sensing, emphasizing the key problem faced by application designers: how to extract reliable information from data collected from largely unknown and possibly unreliable sources. The book explains how a myriad of societal applications can be derived from this massive amount of data collected and shared by average individuals. The title offers theoretical foundations to support emerging data-driven cyber-physical applications and touches on key issues such as privacy. The authors present solutions based on recent research and novel ideas that leverage techniques from cyber-physical systems, sensor networks, machine learning, data mining, and information fusion.

Key Features

  • Offers a unique interdisciplinary perspective bridging social networks, big data, cyber-physical systems, and reliability
  • Presents novel theoretical foundations for assured social sensing and modeling humans as sensors
  • Includes case studies and application examples based on real data sets
  • Supplemental material includes sample datasets and fact-finding software that implements the main algorithms described in the book


Researchers or graduate students in sensor networks and information processing as well as data mining, machine learning, social networks, information fusion, and embedded computing

Table of Contents

  • Dedication
  • Acknowledgments
  • Authors
  • Foreword
  • Preface
  • Chapter 1: A new information age
    • Abstract
    • 1.1 Overview
    • 1.2 Challenges
    • 1.3 State of the Art
    • 1.4 Organization
  • Chapter 2: Social sensing trends and applications
    • Abstract
    • 2.1 Information Sharing: The Paradigm Shift
    • 2.2 An Application Taxonomy
    • 2.3 Early Research
    • 2.4 The Present Time
    • 2.5 A Note on Privacy
  • Chapter 3: Mathematical foundations of social sensing: An introductory tutorial
    • Abstract
    • 3.1 A Multidisciplinary Background
    • 3.2 Basics of Generic Networks
    • 3.3 Basics of Bayesian Analysis
    • 3.4 Basics of Maximum Likelihood Estimation
    • 3.5 Basics of Expectation Maximization
    • 3.6 Basics of Confidence Intervals
    • 3.7 Putting It All Together
  • Chapter 4: Fact-finding in information networks
    • Abstract
    • 4.1 Facts, Fact-Finders, and the Existence of Ground Truth
    • 4.2 Overview of Fact-Finders in Information Networks
    • 4.3 A Bayesian Interpretation of Basic Fact-Finding
    • 4.4 The Iterative Algorithm
    • 4.5 Examples and Results
    • 4.6 Discussion
    • Appendix
  • Chapter 5: Social Sensing: A maximum likelihood estimation approach
    • Abstract
    • 5.1 The Social Sensing Problem
    • 5.2 Expectation Maximization
    • 5.3 The EM Fact-Finding Algorithm
    • 5.4 Examples and Results
    • 5.5 Discussion
  • Chapter 6: Confidence bounds in social sensing
    • Abstract
    • 6.1 The Reliability Assurance Problem
    • 6.2 Actual Cramer-Rao Lower Bound
    • 6.3 Asymptotic Cramer-Rao Lower Bound
    • 6.4 Confidence Interval Derivation
    • 6.5 Examples and Results
    • 6.6 Discussion
    • Appendix
  • Chapter 7: Resolving conflicting observations and non-binary claims
    • Abstract
    • 7.1 Handling Conflicting Binary Observations
    • 7.2 Handling Non-Binary Claims
    • 7.3 Performance Evaluation
    • 7.4 Discussion
    • Appendix
  • Chapter 8: Understanding the social network
    • Abstract
    • 8.1 Information Propagation Cascades
    • 8.2 A Binary Model of Human Sensing
    • 8.3 Inferring the Social Network
    • 8.4 A Social-Aware Algorithm
    • 8.5 Evaluation
    • 8.6 Discussion and Limitations
  • Chapter 9: Understanding physical dependencies: Social meets cyber-physical
    • Abstract
    • 9.1 Correlations in the Physical World
    • 9.2 Accounting for the Opportunity to Observe
    • 9.3 Accounting for Physical Dependencies
    • 9.4 Real-World Case Studies
    • 9.5 Discussion
    • Appendix
  • Chapter 10: Recursive fact-finding
    • Abstract
    • 10.1 Real Time Social Sensing
    • 10.2 A Streaming Truth Estimation Model
    • 10.3 Dynamics and the Recursive Algorithm
    • 10.4 Performance Evaluation
    • 10.5 Discussion
  • Chapter 11: Further readings
    • Abstract
    • 11.1 Estimation Theory
    • 11.2 Data Quality and Trust Analysis
    • 11.3 Outlier Analysis and Attack Detection
    • 11.4 Recommender Systems
    • 11.5 Surveys and Opinion Polling
  • Chapter 12: Conclusions and future challenges
    • Abstract
    • 12.1 Summary and Conclusions
    • 12.2 Remaining Challenges and Future Work
  • References
  • Index


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Morgan Kaufmann
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About the Author

Dong Wang

Dong Wang

Dong Wang is an Assistant Professor at the Department of Computer Science and Engineering, the University of Notre Dame. He received his Ph.D. in Computer Science from University of Illinois at Urbana Champaign (UIUC) in 2012, an M.S. degree from Peking University in 2007 and a B.Eng. from the University of Electronic Science and Technology of China in 2004, respectively. Dong Wang has published over 30 technical papers in conferences and journals, including IPSN, ICDCS, IEEE JSAC, IEEE J-STSP, and ACM ToSN. His research on social sensing resulted in software tools that found applications in academia, industry, and government research labs. His work was widely reported in talks, keynotes, panels, and tutorials, including at IBM Research, ARL, CPSWeek, RTSS, IPSN, and the University of Michigan, to name a few. Wang’s interests lie in developing analytic foundations for reliable information distillation systems, as well as the foundations of data credibility analysis, in the face of noise and conflicting observations, where evidence is collected by both humans and machines.

Affiliations and Expertise

Assistant Professor, Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, IN, USA

Tarek Abdelzaher

Tarek Abdelzaher

Tarek Abdelzaher is currently a Professor and Willett Faculty Scholar at the Department of Computer Science, the University of Illinois at Urbana Champaign. He has authored/coauthored more than 200 refereed publications in cyber-physical systems, distributed computing, sensor networks, and control, with emphasis on human-in-the-loop challenges. He is an Editor-in-Chief of the Journal of Real-Time Systems, and has served as Associate Editor of the IEEE Transactions on Mobile Computing, IEEE Transactions on Parallel and Distributed Systems, IEEE Embedded Systems Letters, the ACM Transaction on Sensor Networks, and the Ad Hoc Networks Journal. Abdelzaher's research interests lie broadly in understanding and controlling performance properties of computing systems that interact with both a physical environment and social context in the face of increasing complexity, distribution, and degree of embedding in the physical world.

Affiliations and Expertise

Professor and Willett Faculty Scholar, Department of Computer Science, University of Illinois, Urbana Champaign, Champaign, IL, USA

Lance Kaplan

Lance Kaplan

Lance M. Kaplan received the B.S. degree with distinction from Duke University, Durham, NC, in 1989 and the M.S. and Ph.D. degrees from the University of Southern California, Los Angeles, in 1991 and 1994, respectively, all in Electrical Engineering. From 1987-1990, Dr. Kaplan worked as a Technical Assistant at the Georgia Tech Research Institute. He held a National Science Foundation Graduate Fellowship and a USC Dean's Merit Fellowship from 1990-1993, and worked as a Research Assistant in the Signal and Image Processing Institute at the University of Southern California from 1993-1994. Then, he worked on staff in the Reconnaissance Systems Department of the Hughes Aircraft Company from 1994-1996. From 1996-2004, he was a member of the faculty in the Department of Engineering and a senior investigator in the Center of Theoretical Studies of Physical Systems (CTSPS) at Clark Atlanta University (CAU), Atlanta, GA. Currently, he is a researcher in the Networked Sensing and Fusion branch of the U.S. Army Research Laboratory. Dr. Kaplan serves as Editor-In-Chief for the IEEE Transactions on Aerospace and Electronic Systems (AES). In addition, he also serves on the Board of Governors of the IEEE AES Society and on the Board of Directors of the International Society of Information Fusion. He is a three time recipient of the Clark Atlanta University Electrical Engineering Instructional Excellence Award from 1999-2001. His current research interests include signal and image processing, automatic target recognition, information/data fusion, and resource management.

Affiliations and Expertise

Networked Sensing and Fusion Branch, U.S. Army Research Laboratory, Adelphia, MD, USA


"...recommended both to cyber-physical systems researchers and sensor network researchers, but also to people involved in business analytics. After finishing this book, readers will better understand the fundamental concepts related to the subject and also receive new interpretations of, and solutions to, the problems encountered." --Computing Reviews, Social Sensing

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