• JMIR Human Factors (2025)

    Utilizing Gesture and Speech to Control Surgical Lighting Systems

    The Journal of Medical Internet Research (JMIR) - Human Factors 2025

    Nima Zargham Anke Reinschluessel, Andre Mühlenbrock, Thomas Muender, Timur Cetin, Verena Nicole Uslar, Dirk Weyhe, Rainer Malaka, Tanja Döring

    IUI 2025

    BEHAVE AI: BEst Practices and Guidelines for Human-Centric Design and EvAluation of ProactiVE AI Agents

    Companion Proceedings of the 30th International Conference on Intelligent User Interfaces

    Matthias Kraus, Sebastian Zepf, Rebecca Westhäußer, Isabel Feustel, Nima Zargham, Ilhan Aslan, Justin Edwards, Sven Mayer, Dimosthenis Kontogiorgos, Nicolas Wagner, Elisabeth André

    HRI 2025

    MetaMorph -- A Metamodelling Approach For Robot Morphology

    Proceedings of the 2025 ACM/IEEE International Conference on Human-Robot Interaction

    Rachel Ringe, Robin Nolte, Nima Zargham, Robert Porzel, Rainer Malaka

    IJHCI (2025)

    Let’s talk games: An expert exploration of speech interaction with NPCs

    International Journal of Human–Computer Interaction

    Nima Zargham, Maximilian A Friehs, Leandro Tonini, Dmitry Alexandrovsky, Emma Grace Ruthven, Lennart E Nacke, Rainer Malaka

    CUI 2025

    Personas Evolved: Designing Ethical LLM-Based Conversational Agent Personalities

    Proceedings of the 7th ACM Conference on Conversational User Interfaces

    Smit Desai, Mateusz Dubiel, Nima Zargham, Thomas Mildner, Laura Spillner

    IFIP-ICEC 2025

    Beyond Scripts: Designing and Evaluating GenAI-Based NPCs in Video Games

    International Federation for Information Processing – International Conference on Entertainment Computing (IFIP-ICEC 2025)

    Nima Zargham, Leon Tristan Dratzidis, Mehrdad Bahrini, Rachel Ringe, Lisa Hesselbarth, Rainer Malaka

    MUM 2024

    Level Up or Game Over: Exploring How Dark Patterns Shape Mobile Games

    Proceedings of the International Conference on Mobile and Ubiquitous Multimedia

    Sam Niknejad, Thomas Mildner, Nima Zargham, Susanne Putze, Rainer Malaka

    CUI 2024

    Voicecraft: Designing Task-specific Voice Assistant Personas

    Proceedings of the 6th ACM Conference on Conversational User Interfaces

    Mateusz Dubiel, Smit Desai, Nima Zargham, Anuschka Schmitt

    MUM 2024

    Designing AI Personalities: Enhancing Human-Agent Interaction Through Thoughtful Persona Design

    Proceedings of the International Conference on Mobile and Ubiquitous Multimedia

    Nima Zargham, Mateusz Dubiel, Smit Desai, Thomas Mildner, Hanz-Joachim Belz

    IJHCI (2024)

    Gaming with Etiquette: Exploring Courtesy as a Game Mechanic in Speech-Based Games

    International Journal of Human–Computer Interaction

    Nima Zargham, Leon Tristan Dratzidis, Dmitry Alexandrovsky, Maximilian A Friehs, Rainer Malaka

    CUI 2024

    HASI: A Model for Human-Agent Speech Interaction

    Proceedings of the 6th ACM Conference on Conversational User Interfaces

    Nima Zargham, Vino Avanesi, Thomas Mildner, Kamyar Javanmardi, Robert Porzel, Rainer Malaka

    CHI 2024

    "I Know What You Mean": Context-Aware Recognition to Enhance Speech-Based Games

    Proceedings of the CHI Conference on Human Factors in Computing Systems

    Nima Zargham, Mohamed Lamine Fetni, Laura Spillner, Thomas Muender, Rainer Malaka

    CHI 2024

    CUI@ CHI 2024: Building Trust in CUIs—From Design to Deployment

    Extended Abstracts of the CHI Conference on Human Factors in Computing Systems

    Smit Desai, Christina Ziying Wei, Jaisie Sin, Mateusz Dubiel, Nima Zargham, Shashank Ahire, Martin Porcheron, Anastasia Kuzminykh, Minha Lee, Heloisa Candello, Joel E Fischer, Cosmin Munteanu, Benjamin R Cowan

    University of Bremen 2024

    Expanding speech interaction for domestic activities

    PhD Dissertation

    Nima Zargham

    HAI 2023

    "Let's Face It": Investigating User Preferences for Virtual Humanoid Home Assistants

    Proceedings of the 11th International Conference on Human-Agent Interaction

    Nima Zargham, Dmitry Alexandrovsky, Thomas Mildner, Robert Porzel, Rainer Malaka

    MUM 2023

    Tickling proactivity: Exploring the use of humor in proactive voice assistants

    Proceedings of the 22nd international conference on mobile and ubiquitous multimedia

    Nima Zargham, Leon Reicherts, Vino Avanesi, Yvonne Rogers, Rainer Malaka

    CUI 2023

    From C-3PO to HAL: Opening The Discourse About The Dark Side of Multi-Modal Social Agents

    Proceedings of the 5th International Conference on Conversational User Interfaces

    Vino Avanesi, Johanna Rockstroh, Thomas Mildner, Nima Zargham, Leon Reicherts, Maximilian A Friehs, Dimosthenis Kontogiorgos, Nina Wenig, Rainer Malaka

    CUI 2023

    “Funny How?” A Serious Look at Humor in Conversational Agents

    Proceedings of the 5th International Conference on Conversational User Interfaces

    Nima Zargham, Vino Avanesi, Leon Reicherts, Ava Elizabeth Scott, Yvonne Rogers, Rainer Malaka

    CHI 2023

    SelVReflect: A guided VR experience fostering reflection on personal challenges

    Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems

    Nadine Wagener, Leon Reicherts, Nima Zargham, Natalia Bartłomiejczyk, Ava Elizabeth Scott, Katherine Wang, Marit Bentvelzen, Evropi Stefanidi, Thomas Mildner, Yvonne Rogers, Jasmin Niess

    HRI 2023

    Human-Robot Conversational Interaction (HRCI)

    Companion of the 2023 ACM/IEEE International Conference on Human-Robot Interaction

    Donald McMillan, Razan Jaber, Benjamin R Cowan, Joel E Fischer, Bahar Irfan, Ronald Cumbal, Nima Zargham, Minha Lee

    NordiCHI 2022

    It’s Long and Complicated! Enhancing One-Pager Privacy Policies in Smart Home Applications

    Nordic Human-Computer Interaction Conference

    Mehrdad Bahrini, Nima Zargham, Alexander Wolff, Dennis-Kenji Kipker, Karsten Sohr, Rainer Malaka

    CUI 2022

    Understanding circumstances for desirable proactive behaviour of voice assistants: The proactivity dilemma

    Proceedings of the 4th conference on conversational user interfaces

    Nima Zargham, Leon Reicherts, Michael Bonfert, Sarah Theres Voelkel, Johannes Schoening, Rainer Malaka, Yvonne Rogers

    CHI 2022

    “I want it that way”: Exploring users’ customization and personalization preferences for home assistants

    CHI conference on human factors in computing systems extended abstracts

    Nima Zargham, Dmitry Alexandrovsky, Jan Erich, Nina Wenig, Rainer Malaka

    CHI 2022

    “I didn’t catch that, but I’ll try my best”: Anticipatory error handling in a voice controlled game

    Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems

    Nima Zargham, Johannes Pfau, Tobias Schnackenberg, Rainer Malaka

    CUI 2021

    May I interrupt? Diverging opinions on proactive smart speakers

    Proceedings of the 3rd conference on conversational user interfaces

    Leon Reicherts, Nima Zargham, Michael Bonfert, Yvonne Rogers, Rainer Malaka

    CUI 2021

    An evaluation of visual embodiment for voice assistants on smart displays

    Proceedings of the 3rd conference on conversational user interfaces

    Michael Bonfert, Nima Zargham, Florian Saade, Robert Porzel, Rainer Malaka

    MUM 2021

    Multi-agent voice assistants: An investigation of user experience

    Proceedings of the 20th International Conference on Mobile and Ubiquitous multimedia

    Nima Zargham, Michael Bonfert, Robert Porzel, Tanja Doring, Rainer Malaka

    EAI Creative Technologies (2021)

    Using Natural User Interfaces for Previsualization

    EAI endorsed transactions on creative technologies

    Rainer Malaka, Tanja Döring, Thomas Fröhlich, Thomas Muender, Georg Volkmar, Dirk Wenig, Nima Zargham

    CHI PLAY 2020

    Smells like team spirit: Investigating the player experience with multiple interlocutors in a VR game

    Extended Abstracts of the 2020 Annual Symposium on Computer-Human Interaction in Play

    Nima Zargham, Michael Bonfert, Georg Volkmar, Robert Porzel, Rainer Malaka

    IFIP-ICEC 2020

    Enhancing game-based learning through infographics in the context of smart home security

    Entertainment Computing–ICEC 2020: 19th IFIP TC 14 International Conference

    Mehrdad Bahrini, Nima Zargham, Johannes Pfau, Stella Lemke, Karsten Sohr, Rainer Malaka

    CHI PLAY 2020

    Good vs. evil: Investigating the effect of game premise in a smart home security educational game

    Extended Abstracts of the 2020 Annual Symposium on Computer-Human Interaction in Play

    Mehrdad Bahrini, Nima Zargham, Johannes Pfau, Stella Lemke, Karsten Sohr, Rainer Malaka

    CHI PLAY 2019

    What could go wrong? Raising mobile privacy and security awareness through a decision-making game

    Extended Abstracts of the Annual Symposium on Computer-Human Interaction in Play

    Nima Zargham, Mehrdad Bahrini, Georg Volkmar, Karsten Sohr, Dirk Wenig, Rainer Malaka