Prof. Eran Toch

Dep. of Industrial Engineering
מחלקה להנדסת תעשיה סגל אקדמי בכיר


Eran is the head of the Industrial Engineering Department and an Associate Professor at the Department of Industrial Engineering, Faculty of Engineering, Tel Aviv University. He was a visiting Associate Professor at Cornell Tech, in New York, and a post-doctoral fellow at Carnegie Mellon University. My Ph.D. is from the Technion -- Israel Institute of Technology. Eran’s research group studies how human-computer interaction and machine learning can help people better manage their online experiences, privacy, and security online. The group is working on various projects that revolve around computational analysis of human behavior and applying this knowledge to enhance people’s online experience, safety, and productivity. The group’s projects are funded by the Israeli Science Foundation (ISF), Horizon 2020, DARPA, and the Israel Ministry of Science

More information is available on the group's website

Research Interests

My research group addresses challenges in the safety and well-being of people when they interact with digital technologies. The domains we work on include:

  • Usable privacy and security: identifying and providing solutions for online safety.
  • Human-AI interaction: Analyzing patterns of interactions between humans and Artificial Intelligence infused systems.
  • Privacy engineering: Developing and assessing new methods to build systems that respect people’s privacy.
  • Mobile computing and smart cities: understanding the potential of mobile computing to solve logistical and urban challenges.


Full list of publications at my group's website

Peer-reviewed papers

  1. Doron Hillman, Yaniv Harel, and Eran Toch. Evaluating Organizational Phishing Awareness Training on an Enterprise Scale. Computers & Security 103364, 2023. InfoDownload.
  2. Eran Toch and Oshrat Ayalon. How Mass Surveillance Crowds Out Installations of COVID-19 Contact Tracing Applications. Proc. ACM Hum.-Comput. Interact. 7, CSCW1, Article 58, 2023. InfoDownload.
  3. Tamir Mendel, and Eran Toch. Social Support for Mobile Security: Comparing Close Connections and Community Volunteers in a Field ExperimentProceedings of the 2023 CHI Conference on Human Factors in Computing Systems. 2023. InfoDownload.
  4. Frank John Bolton, Dov Te’eni, and Eran Toch, Can previews mitigate the effect of interruptions? Findings from a lab experiment under various workloads, accepted to the International Journal of Human-Computer Interaction, 2022.
  5. Tamir Mendel, Roei Schuster, Eran Tromer, and Eran Toch, Toward Proactive Support for Older Adults: Predicting the Right Moment for Providing Mobile Safety Help, Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 6, no. 1, 2022. Info.
  6. Maya Benarous, Eran Toch, Irad Ben-Gal, Synthesis of Longitudinal Human Location Sequences: Balancing Utility and Privacy. ACM Transactions on Knowledge Discovery from Data (TKDD), 16(6), 2022. Info.
  7. Ayelet Arditi and Eran Toch, Evaluating package delivery crowdsourcing using location traces in different population densities, Computers, Environment and Urban Systems, 96, 2022. Info.
  8. Tamir Mendel, Roei Schuster, Eran Tromer, and Eran Toch, Toward Proactive Support for Older Adults: Predicting the Right Moment for Providing Mobile Safety HelpProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies6(1), 1-25, 2022. Info.
  9. Amit Rechavi and Eran Toch, Crowd logistics: Understanding auction-based pricing and couriers’ strategies in crowdsourcing package delivery, Journal of Intelligent Transportation Systems, 26 (2), 129-144, 2022. Info.  Download.
  10. Tamir Mendel, Debin Gao, David Lo, Eran Toch, An Exploratory Study of Social Support Systems to Help Older Adults in Managing Mobile Safety, in the Proceedings of the 23rd International Conference on Mobile Human-Computer Interaction. Article No.: 30, pp 1–13, 2021. InfoDownload.
  11. Yelena Petrykina, Hadas Schwartz-Chassidim, and Eran Toch, Nudging Users towards Online Safety using Gamified EnvironmentsComputers & Security (2021): 102270. InfoDownload.
  12. Cohen, Doron, Or Naim, Eran Toch, and Irad Ben-Gal, Website categorization via design attribute learningComputers & Security 107 (2021): 102312. InfoDownload.
  13. Oshrat Ayalon, and Eran Toch, User-Centered Privacy-by-Design: Evaluating the Appropriateness of Design PrototypesInternational Journal of Human-Computer Studies (2021): 102641. InfoDownload.
  14. Eran Toch, Hadas Schwartz-Chassidim, and Tali Hatuka, Can you Turn it Off? The Spatial and Social Context of Mobile Disturbance, Proceedings of the ACM on Human-Computer Interaction 4 (CSCW2), 1-18, 2020.  InfoDownload.
  15. Amit Rechavi and Eran Toch, Crowd logistics: Understanding auction-based pricing and couriers’ strategies in crowdsourcing package delivery,
    Journal of Intelligent Transportation Systems, 1–16, 2020. Info.  Download.
  16. Hadas Schwartz-Chassidim ,Christos Perentis, Eran Toch & Bruno Lepri, Between privacy and security: the factors that drive intentions to use cyber-security applications, Behaviour & Information Technology, 2020.  Info.  Download.
  17. Hadas Schwartz-Chassidim, Oshrat Ayalon, Tamir Mendel, Ron Hirschprung, and Eran Toch, Selectivity in Posting on Social Networks: The Role of Privacy Concerns, Social Capital, and Technical LiteracyHeliyon6(2), e03298, 2020.  Info.  Download.
  18. Tamir Mendel and Eran Toch, My Mom was Getting this Popup: Understanding Motivations and Processes in Helping Older Relatives with Mobile Security and Privacy, ACM Interactive, Mobile, Wearable and Ubiquitous Technologies – IMWUT, 2019.  Info.  Download.
  19. Zhiyuan Wan, Lingfeng Bao, Debin Gao, Eran Toch, Xin Xia, Tamir Mendel, and David Lo, AppMoD: Helping Older Adults Manage Mobile Security with Online Social Help. ACM Interactive, Mobile, Wearable and Ubiquitous Technologies – IMWUT, 2019.  Info.  Download.
  20. Eran Toch, Boaz Lerner, Eyal Ben-Zion, and Irad Ben-Gal. Analyzing large-scale human mobility data: a survey of machine learning methods and applications, Knowledge and Information Systems, 1-23, 2019. Info,   Download.
  21. Tali Hatuka, Issachar Rosen-Zvi, Michael Birnhack, Eran Toch & Hadas Zur, The Political Premises of Contemporary Urban Concepts: The Global City, the Sustainable City, the Resilient City, the Creative City, and the Smart CityPlanning Theory & Practice, 2018. Info.
  22. Eran Toch, Claudio Bettini, Erez Shmueli, Laura Radaelli, Andrea Lanzi, Daniele Riboni, and Bruno Lepri. 2018. The Privacy Implications of Cyber Security Systems: A Technological Survey. ACM Computing Surveys 51- 2, Article 36, 2018. InfoDownload.
  23. Irit Hadar, Tomer Hasson, Oshrat Ayalon, Eran Toch, Michael Birnhack, Sofia Sherman, and Arod Balissa. Privacy by designers: software developers’ privacy mindsetEmpirical Software Engineering, pp. 1-31, 2017. InfoDownload.
  24. Ron Hirschprung, Eran Toch, Hadas Schwartz-Chassidim, Tamir Mendel, and Oded Maimon. Analyzing and Optimizing Access Control Choice Architectures in Online Social NetworksACM Transactions on Intelligent Systems and Technology (TIST), vol 8, no. 4, p. 57, 2017. Info. Download.
  25. Oshrat Ayalon and Eran Toch. Not Even Past: Information Aging and Temporal Privacy in Online Social Networks, Human–Computer Interactionvol 32, no. 2, pp. 73-102, 2017. InfoDownload.
  26. Tali Hatuka and Eran Toch. Being Visible in Public Space: The Normalization of Asymmetrical VisibilityUrban Studies, vol. 54, no. 4, pp.  984-998, 2017. InfoDownload.
  27. Ron Hirschprung, Eran Toch, Frank Bolton, and Oded Maimon. A methodology for estimating the value of privacy in information disclosure systemsComputers in Human Behavior, vol 61, pp. 443-453, 2016. Info Download.
  28. Omer Barak, Gabriella Cohen, and Eran Toch. Anonymizing Mobility Data using Semantic CloakingPervasive and Mobile Computing, vol. 28, pp. 102-112, 2016. InfoDownload.
  29. Tali Hatuka and Eran Toch, The emergence of portable private-personal territory (PPPT): Smartphones, social conduct and public spaces. Urban Studies, vol. 53, no.10, 2016. InfoDownload.
  30. Ron Hirschprung, Eran Toch and Oded Maimon, Simplifying Data Disclosure Configurations in a Cloud Computing EnvironmentACM Transactions on Intelligent Systems and Technology, vol 6, no. 3, p. 32, 2015. InfoDownload.
  31. Michael Birnhack, Eran Toch, and Irit Hadar, Privacy Mindset, Technological Mindset, Jurimetrics, vol 55, no. 114, 2014. InfoDownload.
  32. Eran Toch, Crowdsourcing Privacy Preferences in Context-Aware ApplicationsPersonal and Ubiquitous Computing, vol 18, no 1, pp. 129-141, 2014. InfoDownload.
  33. Eran Toch, Yang Wang, and Lorrie Faith Cranor, Personalization and Privacy. User Modeling and User-Adapted Interaction (UMUAI), vol. 22, no. 1-2, pp. 203-220, 2012. InfoDownload.
  34. Eran Toch, Iris Reinhartz-Berger, Dov Dori, Humans, Semantics Services and Similarity: A User Study of Semantic Web Services Matching and Composition. Journal of Web Semantics, vol. 9, no. 1, pp. 16-28, 2011. InfoDownload.
  35. Eran Toch, Avigdor Gal, Aviv Segev, Context-Based Matching and Ranking of Web Services for CompositionIEEE Transactions on Services Computing, vol. 99, no. 1, pp. 210 – 222, 2009.  InfoDownload.
  36. Eran Toch, Avigdor Gal, Iris Reinhartz-Berger, and Dov Dori, A Semantic Approach to Approximate Service RetrievalACM Transactions on Internet Technology, Vol. 8, No. 1, pp. 2:1-2:30, 2007. InfoDownload.
  37. Sheizaf Rafaeli, Miri Barak, Yuval Dan-Gur, and Eran Toch, QSIA – a web-based environment for learning, assessing and knowledge sharing in communities. Computers & Education, vol. 43, no. 3, pp. 273–289, 2004.  Info.

Peer-reviewed Conference Proceedings (selected publications)

  1. Frank Bolton, Dov Te’Eni, Neta B. Maimon, and Eran Toch, Detecting interruption events using EEG, In 2021 IEEE 3rd Global Conference on Life Sciences and Technologies (LifeTech), pp. 33-34. IEEE, 2021. InfoDownload.
  2. Oshrat Ayalon and Eran Toch. Evaluating Users’ Perceptions about a System’s Privacy: Differentiating Social and Institutional Aspects, Fifteenth Symposium on Usable Privacy and Security (SOUPS), 2019. Info.    Download.
  3. Oshrat Ayalon and Eran Toch. Crowdsourcing Privacy Design Critique:  An Empirical Evaluation of Framing Effects, The 51st Hawaii International Conference on System Sciences, 2018. Info. Download.
  4. Maija Poikela and Eran Toch. Understanding the Valuation of Location Privacy: a Crowdsourcing-Based Approach, Proceedings of the 50th Hawaii International Conference on System Sciences, 2017. Info Download.
  5. Tamir Mendel and Eran Toch. Susceptibility to Social Influence of Privacy Behaviors: Peer versus Authoritative Sources, Proceedings of the 2017 ACM Conference on Computer Supported Cooperative Work and Social ComputingInfoDownload.
  6. Ron Hirshpung, Hadas Scwartz-Hassidim, and Eran Toch. An Algorithmic Approach To Evaluating Default Privacy Options, In the 42nd Research Conference on Communication, Information and Internet Policy, Washington D.C., 2014.  Info
  7. Tomer Hasson, Irit Hadar, Oshrat Ayalon, Sofia Sherman, Eran Toch, and Michael Birnhack. Are Designers Ready for Privacy by Design? Examining Perceptions of Privacy Among Information Systems Designers, In the 42nd Research Conference on Communication, Information and Internet Policy, Washington D.C., 2014. Info
  8. Oshrat Ayalon and Eran Toch, Retrospective Privacy: Managing Longitudinal Privacy in Online Social Networks, In Proceedings of the Ninth Symposium on Usable Privacy and Security (SOUPS ’13). ACM, New York, NY, USA, , Article 4 , 13 pages, 2013. InfoDownload.
  9. Eran Toch and Inbal Levi, Locality and Privacy in People-Nearby Applications. In Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing (UbiComp ’13). ACM, New York, NY, USA, 539-548. InfoDownload.
  10. Omer Barak, Gabriella Cohen, Alla Gazit, and Eran Toch. 2013. The Price is Right? Economic Value of Location Sharing. In Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp ’13 Adjunct). ACM, New York, NY, USA, 891-900. InfoDownload.
  11. Eran Toch, Super-Ego: a framework for privacy-sensitive bounded context-awareness. Proceedings of the 5th ACM International Workshop on Context-Awareness for Self-Managing Systems (CASEMANS ’11), 2011. Best paper award. InfoDownload.
  12. Vassilis Kostakos, Jayant Venkatanathan, Bernardo Reynolds, Norman Sadeh, Eran Toch, Siraj A. Shaikh, and Simon Jones. Who’s your best friend?: targeted privacy attacks In location-sharing social networks, In proceedings of the 13th International Conference on Ubiquitous Computing (UbiComp ’11), pp. 177–186, 2011. InfoDownload.
  13. Jayant Venkatanathan, Denzil Ferreira, Michael Benisch, Jialiu Lin, Evangelos Karapanos, Vassilis Kostakos, Norman M. Sadeh, Eran Toch. Improving Users’ Consistency When Recalling Location Sharing Preferences, In proceedings of the 13th International Conference on Human-Computer Interaction (INTERACT ’11), 2011. InfoDownload
  14. Eran Toch, Justin Cranshaw, Paul Hankes Drielsma, Janice Y. Tsai, Patrick Gage Kelley, James Springfield, Lorrie Cranor, Jason Hong, and Norman Sadeh, Empirical models of privacy in location sharing, Proceedings of the 12th ACM international conference on Ubiquitous computing, pp. 129-138 , 2010. InfoDownload.
  15. Justin Cranshaw, Eran Toch, Jason Hong, Aniket Kittur, Norman Sadeh. Bridging the gap between physical location and online social networks, In proceedings of the 12th ACM international conference on Ubiquitous computing (Ubicomp ’10), pp. 119–128, 2010.  InfoDownload.
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