Panos Markopoulos

schoolTechnical University Eindhovenbar_chart#926 Global Rank

Total Papers

HCI Rank

#926

Research Areas

Years Active

Recent Publications

Enhancing Children's Self-Reporting in Chatbot Diaries through Rhyming Style

Existing children’s self-reporting tools like surveys and diaries often feel restrictive, leading to disengagement and low-quality responses. LLM-powered chatbots can adapt with simplified wording or empathetic tone, but such adaptations remain insufficient: responses may be adult-centered, complex, or formulaic, unde…

CHI '26CorrespondingVoice User Interface (VUI) Design +2

Enhancing Response Quality by Children in Voice-based Sleep Diaries via AI-based Continuous Feedback

Digital sleep diaries are widely used to monitor children’s sleep, yet response quality is often low because children may not know how, or be motivated, to give detailed answers. We investigate how “live,” continuous feedback in voice-based sleep diaries can support higher-quality responses. In a co-design workshop, w…

DIS '255th+ AuthorFull-Body Interaction & Embodied Input +2

MindFlow: Breathing-Integrated Progressive Muscle Relaxation with a Full-Body Self-Avatar in Virtual Reality

Breathing exercises and Progressive Muscle Relaxation (PMR) have complementary effects, making their integration a common practice among relaxation techniques. While numerous virtual reality (VR) exercises support breathing exercises in self-training, integrating breathing support into PMR in VR presents challenges, i…

CHI '25CorrespondingSleep & Stress Monitoring +2

"Did you sleep well?": A Multimodal Sleep Diary for Sustained Self-Reporting by Children

Sleep diaries are essential self-reporting tools for understanding children's sleep patterns, but maintaining sustained engagement and high-quality self-reporting remains challenging. While voice input has been explored in child-computer interaction research as a method to improve engagement, limited evidence exists r…

CUI '24CorrespondingConversational Chatbots +2

Seeking Truth, Comfort, and Connection: How Conversational User Interfaces can help Couples with Dementia Manage Reality Disjunction

Reality disjunction, when people present contradicting worldviews as true, frequently occurs in conversations between people with dementia and their partners due to memory gaps, distortions, fabrications, or unsuccessful communication. These couples can feel isolated and frustrated when trying to reconcile their memor…

CHI '243rd AuthorAging-Friendly Technology Design +1

Evolving Presentation of Self: The Influence of Dementia Communication Challenges on Everyday Interactions

Communication can become challenging for people with dementia due to language, speech, discourse, and memory impairments. Although recent developments in Human-Computer Interaction have addressed some of these communication challenges, little is known about how they affect the self-presentation of people with dementia…

CSCW '22CorrespondingCrowdsourcing

Understanding User Perceptions of Response Delays in Crowd-Powered Conversational Systems

Crowd-powered conversational systems (CPCS) are gaining considerable attention for their potential utility in a variety of application domains, for which automated conversational interfaces are still too limited. CPCS currently suffer from long response delays, which hampers their potential as conversational partners.…

DIS '202nd AuthorShape-Changing Interfaces & Soft Robotic Materials +1

Crafting Research Products through Digital Machine Embroidery

Wearables combine practical and conceptual challenges related to electronics, clothing and interaction design. Research through design in this area is commonly done iteratively through prototypes of increasing levels of fidelity, often relying on manual fabrication. However, manual fabrication presents challenges when…

DIS '20CorrespondingPrototyping & User Testing

Design Card Sets: Systematic Literature Survey and Card Sorting Study

Design cards are a popular way for designers to encode and communicate design knowledge. Aiming to inform the designers of such design tools we set out to characterize the design space of design cards in a two-pronged approach involving a) a systematic literature survey on the use of design cards and b) card sorting i…

HRI '20CorrespondingSocial Robot Interaction

Robot Role Design for Implementing Social Facilitation Theory in Musical Instruments Practicing

The application of social robots has recently been explored in various types of educational settings including music learning. Earlier research presented evidence that simply the presence of a robot can influence a person’s task performance, confirming social facilitation theory and findings in human-robot interaction…

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