Publications

2024

  • Veronika Krauss, Pejman Saeghe, Alexander Boden, Mohamed Khamis, Mark McGill, Jan Gugenheimer, Michael Nebeling.
    What makes XR dark? Examining emerging dark patterns in augmented and virtual reality through expert co-design
    Transactions on Computer-Human Interaction (TOCHI).


  • Robin Bretin, Emily Cross, Mohamed Khamis.
    Co-existing with drones: a virtual exploration of proxemic behaviours and users’ insights on social drones
    In the International Journal of Social Robotics


  • Melvin Abraham, Mark McGill, Mohamed Khamis.
    What You Experience is What We Collect: User Experience Based Fine-Grained Permissions for Everyday Augmented Reality.
    In Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI 2024)


  • Habiba Farzand, Karola Marky, Mohamed Khamis.
    Out-of-Device Privacy Unveiled: Designing and Validating the Out-of-Device Privacy Scale (ODPS).
    In Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI 2024)


  • Cristina Fiani, Robin Bretin, Shaun Macdonald, Mohamed Khamis, Mark McGill.
    "Pikachu would electrocute people who are misbehaving": Expert, Guardian and Child Perspectives on Automated Embodied Moderators for Safeguarding Children in Social Virtual Reality.
    In Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI 2024)


  • Karola Marky, Nina Gerber, Henry J Krumb, Mohamed Khamis, Max Mühlhäuser.
    Investigating Voter Perceptions of Printed Physical Audit Trails for Online Voting.
    In Proceedings of the 45th IEEE Symposium on Security and Privacy (IEEE S&P 2024)


  • Cristina Fiani, Pejman Saeghe, Mark McGill, Mohamed Khamis.
    Exploring the Perspectives of Social VR-Aware Non-Parent Adults and Parents on Children’s Use of Social Virtual Reality.
    In Proceedings of the ACM in Human-Computer Interaction, CSCW, (2024), 25 pages.


  • Yasmeen Abdrabou, Mariam Hassib, Shuqin Hu, Ken Pfeuffer, Mohamed Khamis, Andreas Bulling, Florian Alt.
    EyeSeeIdentity: Exploring Nautral Gaze Behaviour for Implicit User Identification during Photo Viewing
    Symposium on Usable Security and Privacy (USEC) 202419% acceptance rate


  • Habiba Farzand, David Al Baiaty Suarez, Thomas Goodge, Shaun Macdonald, Karola Marky, Mohamed Khamis, Paul Cairns.
    Beyond Aesthetics: Evaluating Response Widgets for Reliability & Construct Validity of Scale Questionnaires.
    In Proceedings of the 2024 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2024)


  • Yasmeen Abdrabou, Tatiana Omelina, Felix Dietz, Mohamed Khamis, Florian Alt, Mariam Hassib.
    Where Do You Look When Unlocking Your Phone? A Field Study of Gaze Behaviour During Smartphone Unlock.
    In Proceedings of the 2024 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2024)


2023

  • Yaxiong Lei, Shijing Hu,Mohamed Khamis, Juan Ye.
    An End-to-End Review of Gaze Estimation and its Interactive Applications on Handheld Mobile Devices.
    In ACM Computing Surveys


  • Karola Marky, Shaun Macdonald, Yasmeen Abdrabou, Mohamed Khamis.
    In the Quest to Protect Users from Side-Channel Attacks - Investigating a User-Centred Design Space for Thermal Attack Protection.
    In Proceedings of the 32nd USENIX Security Symposium (USENIX Security 2023)


  • Mark Turner, Martin Schmitz, Morgan Bierey, Mohamed Khamis, Karola Marky.
    Tangible 2FA -- An In-the-Wild Investigation of User-Defined Tangibles for Two-Factor Authentication.
    In Proceedings of the 19th Symposium on Usable Privacy and Security (SOUPS 2023)


  • Elina Kuosmanen, Eetu Huusko, Niels van Berkel, Francisco Nunes, Julio Vega, Jorge Goncalves, Mohamed Khamis, Augusto Esteves, Denzil Ferreira, Simo Hosio.
    Exploring crowdsourced self-care techniques: A study on Parkinson’s disease.
    International Journal of Human-Computer Studies


  • Robin Bretin, Mohamed Khamis, Emily Cross.
    “Do I Run Away?”: Proximity, Stress and Discomfort in Human-Drone Interaction in Real and Virtual Environments
    In Proceedings of the 19th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2023)
    Best Full Paper Award
    Best Doctoral Student Paper Award


  • Vito Gentile, Habiba Farzand, Simona Bonaccorso, Davide Rocchesso, Alessio Malizia, Mohamed Khamis, Salvatore Sorce.
    User-Centered Evaluation of Different Configurations of a Touchless Gestural Interface for Interactive Displays
    In Proceedings of the 19th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2023)


  • Cristina Fiani, Robin Bretin, Mark McGill, Mohamed Khamis.
    Big Buddy: Exploring Child Reactions and Parental Perceptions towards a Simulated Embodied Moderating System for Social Virtual Reality.
    In Proceedings of the 22nd annual ACM Interaction Design and Children Conference (IDC 2023)


  • Noora Alsakar, Yasmeen Abdrabou, Simone Stumpf, Mohamed Khamis.
    Investigating Privacy Perceptions and Social Aspects of Eye Tracking on Handheld Mobile Devices.
    Proceedings of the ACM on Human-Computer Interaction 7 (ETRA), 1-16


  • Yaxiong Lei, Yuheng Wang, Tyler Caslin, Alexander Wisowaty, Xu Zhu, Mohamed Khamis, Juan Ye.
    DynamicRead: Exploring Robust Gaze Interaction Methods for Reading on Handheld Mobile Devices under Dynamic Conditions.
    Proceedings of the ACM on Human-Computer Interaction 7 (ETRA)


  • Omar Namnakani, Penpicha Sinrattanavong, Yasmeen Abdrabou, Andreas Bulling, Florian Alt, Mohamed Khamis.
    GazeCast: Using Mobile Devices to Allow Gaze-based Interaction on Public Displays.
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2023) - COGAIN
    Best COGAIN workshop paper award


  • Omar Namnakani, Yasmeen Abdrabou, Jonathan Grizou, Augusto Esteves, Mohamed Khamis.
    Comparing Dwell time, Pursuits and Gaze Gestures for Gaze Interaction on Handheld Mobile Devices.
    In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI 2023)


  • Passant ElAgroudy, Mohamed Khamis, Florian Mathis, Diana Irmscher, Ekta Sood, Andreas Bulling, Albrecht Schmidt.
    Impact of Privacy Protection Methods of Lifelogs on Remembered Memories.
    In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI 2023)


  • Joseph O'Hagan, Julie Williamson, Florian Mathis, Mohamed Khamis, Mark McGill.
    Re-Evaluating VR User Awareness Needs During Bystander Interactions.
    In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI 2023)


  • Aydin Abadi, Madeline Carr, Ignacio Castro, Dr Alicia Cork, Andrés Domínguez, Cristina Fiani, Mohamed Khamis, Mark McGill, Steven Murdoch, Awais Rashid, Pejman Saeghe, Gareth Tyson.
    REPHRAIN White Paper: the Metaverse and Web 3.0. March 2023.


  • Cristina Fiani, Robin Bretin, Mark McGill, Mohamed Khamis.
    Big Buddy: A Simulated Embodied Moderating System to Mitigate Children's Reaction to Provocative Situations within Social Virtual Reality.
    In Proceedings of the 2023 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2023)


  • Shaun Macdonald, Habiba Farzand, Norah Alotaibi, Md Shafiqul Islam, Mohamed Khamis
    Change Policy or Users? Mitigating the Security Risks of Thermal Attacks.
    In the CHI 2023 workshop on Designing Technology and Policy Simultaneously: Towards A Research Agenda and New Practice.


  • Cristina Fiani, Mark McGill, Mohamed Khamis
    Ensuring Child Safety in Social VR: Navigating Different Perspectives and Merging Viewpoints.
    In CHI 2023 workshop on Combating Toxicity, Harassment, and Abuse in Online Social Spaces.


  • Shaun Macdonald, Norah Alotaibi, Md Shafiqul Islam, Mohamed Khamis
    Conducting and Mitigating Portable Thermal Imaging Attacks on User Authentication with Machine Learning.
    In Proceedings of the Augmented Humans International Conference 2023 (AHs 2023)


  • Norah Alotaibi, John Williamson, Mohamed Khamis.
    ThermoSecure: Investigating the effectiveness of AI-driven thermal attacks on commonly used computer keyboards.
    In ACM Transactions on Privacy and Security (TOPS 2023).


2022

  • Yuanjie Xia, Mohamed Khamis, F. Anibal Fernandez, Hadi Heidari, Haider Butt, Zubair Ahmed, Tim Wilkinson, Rami Ghannam.
    State-of-the-Art in Smart Contact Lenses for Human–Machine Interaction.
    In IEEE Transactions on Human-Machine Systems, December 2022.


  • Joseph O'Hagan, Pejman Saeghe, Jan Gugenheimer, Daniel Medeiros, Karola Marky, Mohamed Khamis, Mark McGill.
    Privacy-Enhancing Technology and Everyday Augmented Reality: Understanding Bystanders' Varying Needs for Awareness and Consent
    In Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. (IMWUT) 6, 4, December 2022, 21 pages.


  • Daniel Kirkwood, Cagdas Tombul, Calum Firth, Finn MacDonald, Konstantinos Priftis, Florian Mathis, Mohamed Khamis and Karola Marky.
    PIN Scrambler: Assessing the Impact of Randomised Layouts on the Usability and Security of PINs.
    In Proceedings of the 21st International Conference on Mobile and Ubiquitous Multimedia (MUM 2022)


  • Yufeng Diao, Yichi Zhang, Guodong Zhao, Mohamed Khamis.
    Drone Authentication via Acoustic Fingerprint.
    In Proceedings of the Annual Computer Security Applications Conference (ACSAC '22)


  • Habiba Farzand, Karola Marky, Mohamed Khamis.
    Shoulder Surfing through the Social Lens: A Longitudinal Investigation & Insights from an Exploratory Diary Study.
    In Proceedings of the 2022 European Symposium on Usable Security (EuroUSEC 2022)


  • Melvin Abraham, Pejman Saeghe, Mark McGill, Mohamed Khamis.
    Implications of XR on Privacy, Security and Behaviour: Insights from Experts.
    In Proceedings of the 12th Nordic Conference on Human-Computer Interaction (NordiCHI 2022). Association for Computing Machinery


  • Paul Bekaert, Norah Alotaibi, Florian Mathis, Nina Gerber, Aiden Rafferty, Mohamed Khamis, Karola Marky.
    Are Thermal Attacks a Realistic Threat? Investigating the Preconditions of Thermal Attacks in Users’ Daily Lives.
    In Proceedings of the 12th Nordic Conference on Human-Computer Interaction (NordiCHI 2022). Association for Computing Machinery


  • Karola Marky, Paul Gerber, Sebastian Günther, Mohamed Khamis, Maximilian Fries, Max Mühlhäuser.
    Investigating State-of-the-Art Practices for Fostering Subjective Trust in Online Voting through Interviews.
    In Proceedings of the 31st USENIX Security Symposium (USENIX Security 2022)


  • Karola Marky, Nina Gerber, Michelle Gabriela Pelzer, Mohamed Khamis, Max Mühlhäuser.
    "You offer privacy like you offer tea": Investigating Mechanisms for Improving Guest Privacy in IoT-Equipped Households.
    In Proceedings on Privacy Enhancing Technologies 2022 (PETS 2022.4)


  • Mihai Bâce, Alia Saad, Mohamed Khamis, Stefan Schneegass, Andreas Bulling.
    PrivacyScout: Assessing Vulnerability to Shoulder Surfing on Mobile Devices
    In Proceedings on Privacy Enhancing Technologies 2022 (PETS 2022.3) - 30.6% acceptance rate


  • Joseph O'Hagan, Mohamed Khamis, Mark McGill, Julie R Williamson.
    Exploring Attitudes Towards Increasing User Awareness of Reality From Within Virtual Reality
    In Proceedings of the ACM International Conference on Interactive Media Experiences (IMX 2022)


  • Sarune Savickaite, Elliot Millington, Chris Freeman, Robert McMillan, Neil McDonnell, Mohamed Khamis.
    ALIVE: Avatar Learning Impact assessment for Virtual Environments.
    In Proceedings of the 8th International Conference of the Immersive Learning Research Network (iLRN 2022)


  • Florian Mathis, Joseph O'Hagan, Kami Vaniea, Mohamed Khamis.
    Stay Home! Conducting Remote Usability Evaluations of Novel Real-World Authentication Systems Using Virtual Reality.
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2022)


  • Yomna Abdelrahman, Florian Mathis, Pascal Knierim, Axel Kettler, Florian Alt, Mohamed Khamis.
    CueVR: Studying the Usability of Cue-based Authentication for Virtual Reality.
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2022)


  • Yasmeen Abdrabou, Radiah Rivu, Tarek Ammar, Jonathan Liebers, Alia Saad, Carina Liebers, Uwe Gruenefeld, Pascal Knierim, Mohamed Khamis, Ville Makela, Stephan Schneegass, Florian Alt.
    Understanding Shoulder Surfer Behavior and Attack Patterns Using Virtual Reality.
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2022)


  • Joseph O'Hagan, Julie R. Williamson, Mohamed Khamis, Mark McGill.
    Exploring Manipulating In-VR Audio To Facilitate Verbal Interactions Between VR Users And Bystanders.
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2022)


  • Mohamed Khamis, Habiba Farzand, Marija Mumm, Karola Marky.
    DeepFakes for Privacy: Investigating the Effectiveness of State-of-the-art Privacy-Enhancing Face Obfuscation Methods.
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2022)


  • Mohamed Khamis, Karola Marky, Andreas Bulling, Florian Alt.
    User-centered Multimodal Authentication: Securing Handheld Mobile Devices using Gaze and Touch Input.
    Behaviour & Information Technology, 41:10, 2047-2069.


  • Uwe Gruenefeld, Jonas Auda, Florian Mathis, Stefan Schneegass, Mohamed Khamis, Jan Gugenheimer, Sven Mayer.
    VRception: Rapid Prototyping of Cross-Reality Systems in Virtual Reality
    In Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems (CHI 2022) - among the 12.5% accepted with minor revisions out of 2,597
    Honorable Mention Award (top 5% of submissions)


  • Yasmeen Abdrabou, Johannes Schütte, Ahmed Shams, Ken Pfeuffer, Daniel Buschek, Mohamed Khamis, Florian Alt.
    "Your Eyes Say You Have Used This Password Before": Identifying Password Reuse from Gaze Behavior and Keystroke Dynamics
    In Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems (CHI 2022)


  • Wen-Jie Tseng, Elise Bonnail, Mark McGill, Mohamed Khamis, Eric Lecolinet, Samuel Huron, Jan Gugenheimer.
    The Dark Side of Perceptual Manipulations in Virtual Reality
    In Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems (CHI 2022)


  • Robin Bretin, Emily Cross, Mohamed Khamis.
    Co-existing With a Drone: Using Virtual Reality to Investigate the Effect of the Drone’s Height and Cover Story on Proxemic Behaviours
    In Proceedings of the 2022 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2022)


  • Kieran Watson, Robin Bretin, Mohamed Khamis, Florian Mathis.
    The Feet in Human-Centred Security: Investigating Foot-Based User Authentication for Public Displays
    In Proceedings of the 2022 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2022)


  • Habiba Farzand, Florian Mathis, Karola Marky, Mohamed Khamis.
    Trust & Privacy Expectations during Perilous Times of Contact Tracing
    In Proceedings of the Usable Security and Privacy (USEC) Symposium 2022


  • Norah Alotaibi, Md Shafiqul Islam, Karola Marky, Mohamed Khamis
    Advanced Techniques for Preventing Thermal Imaging Attacks
    In Proceedings of the 27th International Conference on Intelligent User Interfaces (IUI 2022)


  • Florian Mathis, Joseph O'Hagan, Mohamed Khamis, Kami Vaniea.
    Virtual Reality Observations: Using Virtual Reality to Augment Lab-Based Shoulder Surfing Research
    In Proceedings of the 28th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR 2022) - 21.5% acceptance rate
    Best Conference Paper Nominee


  • Florian Mathis, Kami Vaniea, Mohamed Khamis.
    Can I Borrow Your ATM? Using Virtual Reality for (Simulated) In Situ Authentication Research
    In Proceedings of the 28th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR 2022) - 21.5% acceptance rate


2021

  • Jolie Bonner, Joseph O'Hagan, Florian Mathis, Jamie Ferguson, Mohamed Khamis.
    Using Personal Data to Support Authentication: User Attitudes and Suitability
    In Proceedings of the 20th International Conference on Mobile and Ubiquitous Multimedia (MUM 2021)


  • Florian Mathis, Kami Vaniea, Mohamed Khamis.
    Prototyping Usable Privacy and Security Systems: Insights from Experts
    In the International Journal of Human–Computer Interaction, 1-23, Taylor & Francis, 2021/8/6.


  • Ana de Oliveira, Mohamed Khamis, Augusto Esteves.
    GaitWear: A Smartwatch Application for In-the-Wild Gait Normalization Based on a Virtual Field Study Assessing the Effects of Visual and Haptic Cueing.
    In Behaviour and Information Technology.


  • Joseph O'Hagan, Julie R Williamson, Mark McGill, Mohamed Khamis.
    Safety, Power Imbalances, Ethics and Proxy Sex: Surveying In-The-Wild Interactions Between VR Users and Bystanders
    In Proceedings of the 2021 IEEE International Symposium on Mixed and Augmented Reality (ISMAR 2021).
    Best Conference Paper Nominee


  • Habiba Farzand, Kinshuk Bhardwaj, Karola Marky, Mohamed Khamis.
    The Interplay between Personal Relationships and Shoulder Surfing Mitigation
    In Proceedings of Mensch and Computer 2021 (MuC 2021)
    Honorable Mention Award (top 5% of submissions)


  • Yasmeen Abdrabou, Reem Hatem, Yomna Abdelrahman, Amr Elmougy, Mohamed Khamis.
    Passphrases Beat Thermal Attacks: Evaluating Text Input Characteristics Against Thermal Attacks on Laptops and Smartphones
    In Proceedings of the 18th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2021)


  • Misahael Fernandez, Florian Mathis, Mohamed Khamis.
    GazeWheels: Recommendations for using Wheel Widgets for Feedback during Dwell-time Gaze Input
    it - Information Technology, vol. 63, no. 3, 2021, pp. 145-156.


  • Jessica Cauchard, Nigel Davies, Vito Gentile, Salvatore Sorce, Mohamed Khamis.
    Special issue on pervasive displays.
    Personal and Ubiquitous Computing, 2021.


  • Tania Wallis, Chris Johnson, Mohamed Khamis.
    Interorganizational Cooperation in Supply Chain Cybersecurity: A Cross-Industry Study of the Effectiveness of the UK Implementation of the NIS Directive
    Information & Security: An International Journal. Vol. 48., 2021.


  • Florian Mathis, Kami Vaniea, Mohamed Khamis.
    Observing Virtual Avatars: The Impact of Avatars' Fidelity on Identifying Interactions
    In Proceedings of the 24th International Conference on Academic Mindtrek (Mindtrek 2021)


  • Yasmeen Abdrabou, Ahmed Shams, Mohamed Omar Mantawy, Anam Ahmad Khan, Mohamed Khamis, Florian Alt, Yomna Abdelrahman.
    GazeMeter: Exploring the Usage of Gaze Behaviour to enhance Password Assessments
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2021)


  • Jessica Cauchard, Mohamed Khamis, Jérémie Garcia, Matjaž Kljun, Anke M. Brock.
    Toward a roadmap for human-drone interaction
    In ACM Interactions 28, 2 (March 2021), 77-81.


  • Florian Mathis, Kami Vaniea, Mohamed Khamis.
    RepliCueAuth: Validating the Use of a lab-based Virtual Reality Setup for Evaluating Authentication Systems
    In Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (CHI 2021) - 26.3% acceptance rate


  • Florian Mathis, John Williamson, Kami Vaniea, Mohamed Khamis.
    Fast and Secure Authentication in Virtual Reality using Coordinated 3D Manipulation and Pointing
    Transactions on Computer-Human Interaction (TOCHI), 28, 1, Article 6 (January 2021), 44 pages.


  • Mark McGill, Mohamed Khamis
    The Tension Between Safety and Self-Expression in Adolescent Use of Social XR
    In CHI 2021 Workshop on XR Remote Research


  • Joseph O'Hagan, Mohamed Khamis, Julie Williamson
    Surveying Consumer Understanding & Sentiment Of VR
    In the 2021 International Workshop on Immersive Mixed and Virtual Environment Systems (MVVE 2021)


  • Yasmeen Abdrabou, Yomna Abdelrahman, Mohamed Khamis, Florian Alt.
    Think Harder! Investigating the Effect of Password Strength on Cognitive Load during Password Creation
    In Proceedings of the 2021 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2021)


  • Florian Mathis, Xuesong Zhang, Joseph O'Hagan, Daniel Medeiros, Pejman Saeghe, Mark McGill, Stephen Brewster, Mohamed Khamis
    Remote XR Studies: The Golden Future of HCI Research?
    In CHI 2021 Workshop on XR Remote Research


  • Mohamed Khamis, Florian Alt.
    Privacy and Security in Augmentation Technologies
    In "Technology-Augmented Perception and Cognition" (chapter 8). Springer Nature Switzerland AG


2020

  • Mariam Hassib, Hatem Abdelmoteleb, Mohamed Khamis.
    Are my Apps Peeking? Comparing Nudging Mechanisms to Raise Awareness of Access to Mobile Front-facing Camera
    In Proceedings of the 19th International Conference on Mobile and Ubiquitous Multimedia (MUM 2020)


  • Vito Gentile, Mohamed Khamis, Fabrizio Milazzo, Salvatore Sorce, Alessio Malizia, Florian Alt.
    Predicting Mid-Air Gestural Interaction with Public Displays based on Audience Behaviour
    International Journal of Human-Computer Studies, Volume 144, 2020


  • Christina Katsini, Yasmeen Abdrabou, George Raptis, Mohamed Khamis, Florian Alt.
    The Role of Eye Gaze in Security and Privacy Applications: Survey and Future HCI Research Directions
    In Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems (CHI 2020) - 24.31% acceptance rate
    Honorable Mention Award (top 5% of submissions)


  • Ville Mäkelä, Sheikh Radiah Rahim Rivu, Saleh Alsherif, Mohamed Khamis, Chong Xiao, Lisa Marianne Borchert, Albrecht Schmidt, Florian Alt.
    Virtual Field Studies: Conducting Studies on Public Displays in Virtual Reality
    In Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems (CHI 2020) - 24.31% acceptance rate


  • Misahael Fernandez, Florian Mathis, Mohamed Khamis.
    GazeWheels: Comparing Dwell-time Feedback and Methods for Gaze Input
    In Proceedings of the 11th Nordic Conference on Human-Computer Interaction (NordiCHI 2020). Association for Computing Machinery - 14.7% acceptance rate


  • Ceenu George, Daniel Buschek, Andrea Ngao, Mohamed Khamis.
    GazeRoomLock: Using Gaze and Head-pose to Improve the Usability and Observation Resistance of 3D Passwords in Virtual Reality
    In Proceedings of the 7th International Conference on Augmented Reality, Virtual Reality, and Computer Graphics (AVR 2020).


  • Yasmeen Abdrabou, Ken Pfeuffer, Mohamed Khamis, Florian Alt.
    GazeLockPatterns: Comparing Authentication Using Gaze and Touch for Entering Lock Patterns
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2020)


  • Yasmeen Abdrabou, Yomna Abdelrahman, Ahmed Ayman, Amr Elmougy, Mohamed Khamis.
    Are Thermal Attacks Ubiquitous? When Non-Expert Attackers Use Off the shelf Thermal Cameras
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2020)


  • Sarah Prange, Lukas Mecke, Alice Nguyen, Mohamed Khamis, Florian Alt.
    Don't Use Fingerprint, it's Raining! How People Use and Perceive Context-Aware Selection of Mobile Authentication
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2020)


  • Joseph O'Hagan, Julie Williamson, Mohamed Khamis.
    Bystander Interruption of VR Users
    In Proceedings of the 9th International Symposium on Pervasive Displays (PerDis 2020)


  • Mark McGill, Florian Mathis, Mohamed Khamis, Julie Williamson.
    Augmenting TV Viewing using Acoustically Transparent Auditory Headsets
    In Proceedings of the ACM International Conference on Interactive Media Experiences (IMX 2020)


  • Florian Mathis, Xuesong Zhang, Mark McGill, Adalberto L. Simeone, Mohamed Khamis.
    Assessing Social Text Placement in Mixed Reality TV
    In Proceedings of the ACM International Conference on Interactive Media Experiences (IMX 2020)
    Best Late-Breaking-Work Award


  • Florian Mathis, John Williamson, Kami Vaniea, Mohamed Khamis.
    RubikAuth: Fast and Secure Authentication in Virtual Reality
    In Proceedings of the 2020 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2020)


  • Florian Mathis, Hassan Ismail Fawaz, Mohamed Khamis.
    Knowledge-driven Biometric Authentication in Virtual Reality
    In Proceedings of the 2020 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2020)


2019

  • Mohamed Khamis, Nora Schuster, Ceenu George, Max Pfeiffer.
    ElectroCutscenes: Realistic Haptic Feedback in Cutscenes of Virtual Reality Games Using Electric Muscle Stimulation
    In Proceedings of the 25th ACM Symposium on Virtual Reality Software and Technology (VRST 2019) - 21.4% acceptance rate.


  • Heiko Drewes, Mohamed Khamis, Florian Alt.
    DialPlates:Enabling Pursuits-based User Interfaces with Large Target Numbers
    In Proceedings of the 18th International Conference on Mobile and Ubiquitous Multimedia (MUM 2019)


  • Sarah Prange, Lukas Mecke, Michael Stadler, Maximilian Balluff, Mohamed Khamis, Florian Alt
    Securing Personal Items in Public Space: Stories of Attacks and Threats
    In Proceedings of the 18th International Conference on Mobile and Ubiquitous Multimedia (MUM 2019)


  • Shaimaa Lazem, Ebtisam Alabdulqader, Mohamed Khamis.
    Special Topic: HCI in The Arab World - Introduction
    In ACM Interactions 26, 3 (April 2019), 41-43.


  • Mennatallah Saleh, Mohamed Khamis, Christian Sturm.
    What about my Privacy, Habibi? Understanding Privacy Concerns and Perceptions of Users from Different Socioeconomic Groups in the Arab World
    In Proceedings of the 17th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2019)


  • Mohamed Khamis, Tobias Seitz, Leonhard Mertl, Alice Nguyen, Mario Schneller, Zhe Li.
    Passquerade: Improving Error Correction of Text Passwords on Mobile Devices by using Graphic Filters for Password Masking
    In Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems (CHI 2019) - 23.8% acceptance rate


  • Passant ElAgroudy, Mohamed Khamis, Florian Mathis, Diana Irmscher, Andreas Bulling, Albrecht Schmidt.
    Can Privacy-Aware Lifelogs Alter Our Memories?
    In Proceedings of the 2019 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2019)


  • Yasmeen Abdrabou, Mohamed Khamis, Rana Mohamed Eisa, Sherif Ismail, Amr Elmougy.
    Just Gaze and Wave: Exploring the Use of Gaze and Gestures for Shoulder-surfing Resilient Authentication
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2019)


  • Yasmeen Abdrabou, Mariam Mostafa, Mohamed Khamis, Amr Elmougy.
    Calibration-free Text Entry using Smooth Pursuit Eye Movements
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2019)


  • Ceenu George, Daniel Buschek, Mohamed Khamis, Heinrich Hussmann.
    Investigating the Third Dimension for Authentication in Immersive Virtual Reality and in the Real World
    In Proceedings of the 26th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR 2019)


  • Ashley Colley, Niels Henze, Mohamed Khamis.
    Touchscreens as the de facto interface to complex systems
    In "Managing Complexity and Creating Innovation through Design" (chapter 7). Routledge Taylor & Francis Group


  • Anke M. Brock, Jessica Cauchard, Markus Funk, Jérémie Garcia, Mohamed Khamis, and Matjaž Kljun.
    iHDI: First International Workshop on Human-Drone Interaction
    In Proceedings of the 2019 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2019)


  • Florian Mathis, Mohamed Khamis
    Privacy, Security and Safety Concerns of using HMDs in Public and Semi-Public Spaces
    In CHI 2019 Workshop on Challenges Using Head-Mounted Displays in Shared and Social Spaces


  • Matthias Baldauf, Sebastian Steiner, Mohamed Khamis, Sarah-Kristin Thiel.
    Investigating the User Experience of Smartphone Authentication Schemes-The Role of the Mobile Context
    In Proceedings of the 52nd Hawaii International Conference on System Sciences (HICSS 2019)


  • Mohammed Al-Sada, Thomas Höglund, Mohamed Khamis, Jaryd Urbani and Tatsuo Nakajima.
    Orochi: Investigating Requirements and Expectations for Multipurpose Daily Used Supernumerary Robotic Limbs
    In Proceedings of the 10th International Conference on Augmented Human (AH 2019)


2018

  • Mohamed Khamis, Ludwig Trotter, Ville Mäkelä, Emanuel von Zezschwitz, Jens Le, Andreas Bulling, Florian Alt.
    CueAuth: Comparing Touch, Mid-Air Gestures, and Gaze for Cue-based Authentication on Situated Displays
    In Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. (IMWUT) 2, 4, December 2018, 21 pages.


  • Sylvia Rothe, Felix Althammer, Mohamed Khamis.
    GazeRecall: Using Gaze Direction to Increase Recall of Details in 360° Videos
    In Proceedings of the 17th International Conference on Mobile and Ubiquitous Multimedia (MUM 2018)


  • Heiko Drewes, Mohamed Khamis, Florian Alt.
    Smooth Pursuit Target Speeds and Trajectories
    In Proceedings of the 17th International Conference on Mobile and Ubiquitous Multimedia (MUM 2018)


  • Mohamed Khamis, Florian Alt, Andreas Bulling.
    The Past, Present, and Future of Gaze-enabled Handheld Mobile Devices: Survey and Lessons Learned
    Honorable Mention Award (top 5% of submissions)
    In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI 2018)


  • Mohamed Khamis, Malin Eiband, Martin Zürn, Heinrich Hussmann.
    EyeSpot: Leveraging Gaze to Protect Private Text Content on Mobile Devices from Shoulder Surfing
    Journal of Multimodal Technologies and Interaction 2018, 2(3), 45


  • Lukas Mecke, Sarah Prange, Daniel Buschek, Mohamed Khamis, Mariam Hassib, Florian Alt.
    "Outsourcing" Security: Supporting People to Support Older Adults’,
    in Proceedings of the Mobile HCI 2018 Workshop on Mobile Privacy and Security for an Aging Population, 2018.


  • Mohamed Khamis, Anna Kienle, Florian Alt, Andreas Bulling.
    GazeDrone: Mobile Eye-Based Interaction in Public Space Without Augmenting the User
    In Proceedings of the 4th ACM Workshop on Micro Aerial Vehicle Networks, Systems, and Applications (DroNet 2018)


  • Thomas Mattusch, Mahsa Mirzamohammad, Mohamed Khamis, Andreas Bulling, Florian Alt.
    Hidden Pursuits: Evaluating Gaze-selection via Pursuits when the Stimulus Trajectory is Partially Hidden
    In Proceedings of the ACM International Symposium on Eye Tracking Research & Applications (ETRA 2018)


  • Christian Mai, Mohamed Khamis.
    Public HMDs: Modeling and Understanding User Behavior around Public Head-Mounted Displays
    In Proceedings of the 7th International Symposium on Pervasive Displays (PerDis 2018)


  • Mohamed Khamis, Carl Oechsner, Florian Alt, Andreas Bulling.
    VRPursuits: Interaction in Virtual Reality using Smooth Pursuit Eye Movements
    In Proceedings of the International Conference on Advanced Visual Interfaces (AVI 2018)


  • Mohamed Khamis, Christian Becker, Andreas Bulling, Florian Alt.
    Which one is me? Identifying Oneself on Public Displays
    Honorable Mention Award (top 5% of submissions)
    In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (CHI 2018) - 25.7% acceptance rate


  • Mohamed Khamis, Anita Baier, Niels Henze, Florian Alt, Andreas Bulling.
    Understanding Face and Eye Visibility in Front-Facing Cameras of Smartphones used in the Wild
    In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (CHI 2018) - 25.7% acceptance rate


  • Ville Mäkelä, Mohamed Khamis, Lukas Mecke, Jobin James, Markku Turunen, Florian Alt.
    Pocket Transfers: Interaction Techniques for Transferring Content from Situated Displays to Mobile Devices
    In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (CHI 2018) - 25.7% acceptance rate


  • Ebtisam Alabdulqader, Shaimaa Lazem, Mohamed Khamis, Susan Dray.
    Exploring Participatory Design Methods to Engage with Arab Communities
    In Proceedings of the 2018 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2018)


  • Mennatallah Saleh, Mohamed Khamis, Christian Sturm.
    Privacy Invasion Experiences and Perceptions: A comparison between Germany and the Arab World
    In Proceedings of the 2018 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2018)


  • Nađa Terzimehić, Mohamed Khamis, Florian Bemmann, Heinrich Hussmann.
    Lunchocracy: Improving Eating Dynamics in the Workplace Using a Bot-Based Anonymous Voting System
    In Proceedings of the 2018 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA 2018)


2017

  • Mohamed Khamis, Daniel Buschek, Tobias Thieron, Florian Alt, Andreas Bulling.
    EyePACT: Eye-Based Parallax Correction on Touch-Enabled Interactive Displays
    In Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. (IMWUT) 1, 4, December 2017, 18 pages.


  • Mohamed Khamis, J. Henderson, Guiying Du.
    PerDis 2017
    IEEE Pervasive Computing 16(4): 86-89 (2017).


  • Mohamed Khamis, Linda Bandelow, Stina Schick, Dario Casadevall, Andreas Bulling, Florian Alt
    They are all after you: Investigating the Viability of a Threat Model that involves Multiple Shoulder Surfers
    Honorable Mention Award (top 5% submissions)
    In Proceedings of the 16th International Conference on Mobile and Ubiquitous Multimedia (MUM 2017)


  • Mariam Hassib, Mohamed Khamis, Susanne Friedl, Stefan Schneegass and Florian Alt
    BrainAtWork: Logging Cognitive Engagement and Tasks in the Workplace using Electroencephalography
    In Proceedings of the 16th International Conference on Mobile and Ubiquitous Multimedia (MUM 2017)


  • Christian Mai, Lukas Rambold, Mohamed Khamis
    TransparentHMD: Revealing the HMD User's Face to Bystanders
    In Proceedings of the 16th International Conference on Mobile and Ubiquitous Multimedia (MUM 2017)


  • Mohamed Khamis, Mariam Hassib, Emanuel von Zezschwitz, Andreas Bulling, Florian Alt
    GazeTouchPIN: Protecting Sensitive Data on Mobile Devices using Secure Multimodal Authentication
    In Proceedings of the 19th ACM International Conference on Multimodal Interaction (ICMI 2017)


  • Mohamed Khamis, Axel Hoesl, Alexander Klimczak, Martin Reiss, Florian Alt, Andreas Bulling
    EyeScout: Active Eye Tracking for Position and Movement Independent Gaze Interaction with Large Public Displays
    In Proceedings of the 30th Annual ACM Symposium on User Interface Software & Technology (UIST 2017) - 22.5% acceptance rate


  • Mohamed Khamis, Regina Hasholzner, Andreas Bulling, Florian Alt
    GTmoPass: Two-factor Authentication on Public Displays Using GazeTouch passwords and Personal Mobile Devices
    In Proceedings of the 6th International Symposium on Pervasive Displays (PerDis 2017)


  • Vito Gentile, Mohamed Khamis, Salvatore Sorce, Florian Alt
    They are looking at me! Understanding how Audience Presence Impacts on Public Display Users
    In Proceedings of the 6th International Symposium on Pervasive Displays (PerDis 2017)


  • Yomna Abdelrahman*, Mohamed Khamis*, Stefan Schneegass, Florian Alt.
    Stay Cool! Understanding Thermal Attacks on Mobile-based User Authentication
    Honorable Mention Award (top 5% of submissions)
    In Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems (CHI 2017) - 25% acceptance rate
    *Indicates co-First Authors


  • Malin Eiband, Mohamed Khamis, Emanuel von Zezschwitz, Heinrich Hussmann, Florian Alt.
    Understanding Shoulder Surfing in the Wild: Stories from Users and Observers
    In Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems (CHI 2017) - 25% acceptance rate


  • Mohammed Al Sada, Mohamed Khamis, Akira Kato, Shigeki Sugano, Tatsuo Nakajima, Florian Alt.
    Challenges and Opportunities of Supernumerary Robotic Limbs
    In Proceedings of the CHI 2017 Workshop on Amplification and Augmentation of Human Perception (Amplify 2017)


  • Oliver Duerr, Mohamed Khamis, Daniel Buschek, Florian Alt.
    HelpMe: Assisting Older Adults in Performing Tasks on Mobile Devices
    In Proceedings of the CHI 2017 Workshop on Designing Mobile Interactions for the Ageing Populations.


  • Ceenu George, Mohamed Khamis, Emanuel von Zezschwitz, Marinus Burger, Henri Schmidt, Florian Alt, Heinrich Hussmann.
    Seamless and Secure VR: Adapting and Evaluating Established Authentication Systems for Virtual Reality
    USEC Conference in conjunction with NDSS 2017 - 19% acceptance rate


2016

  • Mohamed Khamis, Ludwig Trotter, Markus Tessmann, Christina Dannhart, Andreas Bulling, Florian Alt.
    EyeVote in the Wild: Do Users bother Correcting System Errors on Public Displays?
    In Proc. of the 15th International Conference on Mobile and Ubiquitous Multimedia (MUM 2016)


  • Mohamed Khamis, Ozan Saltuk, Alina Hang, Katharina Stolz, Andreas Bulling, Florian Alt.
    TextPursuits: Using Text for Pursuits-Based Interaction and Calibration on Public Displays
    In Proc. of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2016) - 23.9% acceptance rate


  • Mohamed Khamis, Florian Alt, Andreas Bulling.
    Challenges and Design Space of Gaze-enabled Public Displays
    In Adj. Proc. of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2016)


  • Diako Mardanbegi, Shahram Jalaliniya, Mohamed Khamis, Päivi Majaranta.
    The 6th International Workshop on Pervasive Eye Tracking and Mobile Eye-Based Interaction
    In Adj. Proc. of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2016)


  • Mohamed Khamis, Florian Alt, Mariam Hassib, Emanuel von Zezschwitz, Regina Hasholzner, Andreas Bulling.
    GazeTouchPass: Multimodal Authentication Using Gaze and Touch on Mobile Devices
    In Proc. of the 34th Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2016 EA) 2016.


  • Mariam Hassib, Mohamed Khamis, Stefan Schneegass, Alireza Sahami Shirazi, Florian Alt.
    Investigating User Needs for Bio-sensing and Affective Wearables
    In Proc. of the 34th Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems (CHI 2016 EA) 2016.

2015

  • Mohamed Khamis, Florian Alt, Andreas Bulling.
    A Field Study on Spontaneous Gaze-based Interaction with a Public Display using Pursuits
    In Adj. Proc. of the ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2015), pp. 865-874, 2015.


  • Mohamed Khamis, Andreas Bulling, Florian Alt.
    Tackling Challenges of Interactive Public Displays using Gaze
    In Adj. Proc. of the ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2015), pp. 763-766, 2015.


  • Omar Mowafi, Mohamed Khamis, Wael Abouelsaadat.
    AirDisplay: Experimenting with Air Flow as a Communication Medium
    In Proc. of the 15th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2015), pp. 316-323, 2015.


  • Dominic Gorecky, Mohamed Khamis, Katharina Mura.
    Introduction and establishment of virtual training in the factory of the future
    In the International Journal of Computer Integrated Manufacturing, pp. 1-9, 2015.

2014

  • Menna Bakry, Mohamed Khamis, Slim Abdennadher.
    AreCAPTCHA: Outsourcing Arabic Text Digitization to Native Speakers
    In Proc. of the 11th IAPR International Workshop on Document Analysis Systems (DAS 2014), pp.304-308, 2014.

2013

  • Jörn Hees, Mohamed Khamis, Ralf Biedert, Slim Abdennadher, Andreas Dengel.
    Collecting Links between Entities Ranked by Human Association Strengths
    In Proc. of the 10th Extended Semantic Web Conference (ESWC 2013), 517-531


  • Sara Nasser, Nada Sharaf, Mohamed Khamis, Slim Abdennadher, Caroline Sabty.
    Collecting Arabic Dialect Variations using Games With A Purpose: A Case Study Targeting the Egyptian Dialect
    In Proc. of the 2nd Workshop on Games and NLP (GAMNLP 2013)

2010

  • Christian Schneiker, Mohamed Khamis, Dietmar Seipel.
    Prolog Server Faces - A Declarative Framework for Dynamic Web Pages.
    In Proc. of the 24th Workshop on Constraint Logic Programming (WLP 2010), 109-118

Dissertation

  • Mohamed Khamis.
    Designing Gaze-based Interaction for Pervasive Public Displays.
    PhD Dissertation submitted to the Faculty of Mathematics, Informatics and Statistics of Ludwig Maximimlian University of Munich (LMU)