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Simulating Human Audiovisual Search Behavior

Locating a target based on auditory and visual cues—such as finding a car in a crowded parking lot or identifying a speaker in a virtual meeting—requires balancing effort, time, and accuracy under uncertainty. Existing models of audiovisual search often treat perception and action in isolation, overlooking how people…

Hyunsung Cho et al.Carnegie Mellon University

A Dynamic Bayesian Network Based Framework for Multimodal Context-Aware Interactions

Multimodal context-aware interactions integrate multiple sensory inputs, such as gaze, gestures, speech, and environmental signals, to provide adaptive support across diverse user contexts. Building such systems is challenging due to the complexity of sensor fusion, real-time decision-making, and managing uncertaintie…

Violet Yinuo Han et al.Carnegie Mellon University

Persistent Assistant: Seamless Everyday AI Interactions via Intent Grounding and Multimodal Feedback

Current AI assistants predominantly use natural language interactions, which can be time-consuming and cognitively demanding, especially for frequent, repetitive tasks in daily life. We propose Persistent Assistant, a framework for seamless and unobtrusive interactions with AI assistants. The framework has three key f…

Hyunsung Cho et al.Carnegie Mellon University

Auptimize: Optimal Placement of Spatial Audio Cues for Extended Reality

Spatial audio in Extended Reality (XR) provides users with better awareness of where virtual elements are placed, and efficiently guides them to events such as notifications, system alerts from different windows, or approaching avatars. Humans, however, are inaccurate in localizing sound cues, especially with multiple…

Hyunsung Cho et al.Carnegie Mellon University

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SonoHaptics: An Audio-Haptic Cursor for Gaze-Based Object Selection in XR

We introduce SonoHaptics, an audio-haptic cursor for gaze-based 3D object selection. SonoHaptics addresses challenges around providing accurate visual feedback during gaze-based selection in Extended Reality (XR), e.g., lack of world-locked displays in no- or limited-display smart glasses and visual inconsistencies. T…

Hyunsung Cho et al.Carnegie Mellon University

MineXR: Mining Personalized Extended Reality Interfaces

Extended Reality (XR) interfaces offer engaging user experiences, but their effective design requires a nuanced understanding of user behavior and preferences. This knowledge is challenging to obtain without the widespread adoption of XR devices. We introduce MineXR, a design mining workflow and data analysis platform…

Hyunsung Cho et al.Carnegie Mellon University

RealityReplay: Detecting and Replaying Temporal Changes In Situ Using Mixed Reality

"Humans easily miss events in their surroundings due to limited short-term memory and field of view. This happens, for example, while watching an instructor's machine repair demonstration or conversing during a sports game. We present RealityReplay, a novel Mixed Reality (MR) approach that tracks and visualizes these…

Hyunsung Cho et al.Carnegie Mellon University

FinerMe: Examining App-level and Feature-level Interventions to Regulate Mobile Social Media Use

Many digital wellbeing tools help users monitor and control social media use on their smartphones by tracking and setting limits on their usage time. Tracking is typically done at the granularity of phone- or app-level; however, recent social media apps provide various \emph{features} such as direct messaging, comment…

Adiba Orzikulova et al.Korea Advanced Institute of Science and Technology

Social Regulation and Control

You Are Not Alone: How Trending Stress Topics Brought #Awareness and #Resonance on Campus

People experience various stressful events in their daily lives. Receiving social support, especially from peers who went through a similar experience, helps individuals cope with such stress. We propose StressTrendmeter, a mobile application that targets college students for anonymously sharing the source of stress v…

Ryuhaerang Choi et al.Korea Advanced Institute of Science and Technology

Remote Work, Motivation, and Burnout; Remote Work, Motivation, and Burnout

Prediction for Retrospection: Integrating Algorithmic Stress Prediction into Personal Informatics Systems for College Students' Mental Health

Reflecting on stress-related data is critical in addressing one’s mental health. Personal Informatics (PI) systems augmented by algorithms and sensors have become popular ways to help users collect and reflect on data about stress. While prediction algorithms in the PI systems are mainly for diagnostic purposes, few s…

Taewan Kim et al.Seoul National University

Reflect, not Regret: Understanding Regretful Smartphone Use with App Feature-Level Analysis

Digital intervention tools against problematic smartphone usage help users control their consumption on smartphones, for example, by setting a time limit on an app. However, today's social media apps offer a mix of quasiessential and addictive features in an app (e.g., Instagram has following feeds, recommended feeds,…

Hyunsung Cho et al.Carnegie Mellon University

Workplace Challenges and Digital Wellbeing

I Share, You Care: Private Status Sharing and Sender-Controlled Notifications in Mobile Instant Messaging

While mobile instant messaging (MIM) facilitates ubiquitous interpersonal communication, its constant connectivity could build the expectation of an immediate response to messages, and its notifications flood could cause interruptions at inopportune moments. We examine two design concepts for MIM---private status shar…

Hyunsung Cho et al.Carnegie Mellon University

Conversation and Communication

Paper Title	Authors	Research Topics
Simulating Human Audiovisual Search Behavior Locating a target based on auditory and visual cues—such as finding a car in a crowded parking lot or identifying a speaker in a virtual meeting—requires balancing effort, time, and accuracy under uncertainty. Existing models of audiovisual search often treat perception and action in isolation, overlooking how people…	HC Hyunsung Cho et al.Carnegie Mellon University
A Dynamic Bayesian Network Based Framework for Multimodal Context-Aware Interactions Multimodal context-aware interactions integrate multiple sensory inputs, such as gaze, gestures, speech, and environmental signals, to provide adaptive support across diverse user contexts. Building such systems is challenging due to the complexity of sensor fusion, real-time decision-making, and managing uncertaintie…	VH Violet Yinuo Han et al.Carnegie Mellon University
Persistent Assistant: Seamless Everyday AI Interactions via Intent Grounding and Multimodal Feedback Current AI assistants predominantly use natural language interactions, which can be time-consuming and cognitively demanding, especially for frequent, repetitive tasks in daily life. We propose Persistent Assistant, a framework for seamless and unobtrusive interactions with AI assistants. The framework has three key f…	HC Hyunsung Cho et al.Carnegie Mellon University
Auptimize: Optimal Placement of Spatial Audio Cues for Extended Reality Spatial audio in Extended Reality (XR) provides users with better awareness of where virtual elements are placed, and efficiently guides them to events such as notifications, system alerts from different windows, or approaching avatars. Humans, however, are inaccurate in localizing sound cues, especially with multiple…	HC Hyunsung Cho et al.Carnegie Mellon University
AdRecommended Learn AI Coding at CodeNow Structured lessons, hands-on projects, and continuous updates for people bringing AI into real development work. Explore Now
SonoHaptics: An Audio-Haptic Cursor for Gaze-Based Object Selection in XR We introduce SonoHaptics, an audio-haptic cursor for gaze-based 3D object selection. SonoHaptics addresses challenges around providing accurate visual feedback during gaze-based selection in Extended Reality (XR), e.g., lack of world-locked displays in no- or limited-display smart glasses and visual inconsistencies. T…	HC Hyunsung Cho et al.Carnegie Mellon University
MineXR: Mining Personalized Extended Reality Interfaces Extended Reality (XR) interfaces offer engaging user experiences, but their effective design requires a nuanced understanding of user behavior and preferences. This knowledge is challenging to obtain without the widespread adoption of XR devices. We introduce MineXR, a design mining workflow and data analysis platform…	HC Hyunsung Cho et al.Carnegie Mellon University
RealityReplay: Detecting and Replaying Temporal Changes In Situ Using Mixed Reality "Humans easily miss events in their surroundings due to limited short-term memory and field of view. This happens, for example, while watching an instructor's machine repair demonstration or conversing during a sports game. We present RealityReplay, a novel Mixed Reality (MR) approach that tracks and visualizes these…	HC Hyunsung Cho et al.Carnegie Mellon University
FinerMe: Examining App-level and Feature-level Interventions to Regulate Mobile Social Media Use Many digital wellbeing tools help users monitor and control social media use on their smartphones by tracking and setting limits on their usage time. Tracking is typically done at the granularity of phone- or app-level; however, recent social media apps provide various \emph{features} such as direct messaging, comment…	AO Adiba Orzikulova et al.Korea Advanced Institute of Science and Technology	Social Regulation and Control
You Are Not Alone: How Trending Stress Topics Brought #Awareness and #Resonance on Campus People experience various stressful events in their daily lives. Receiving social support, especially from peers who went through a similar experience, helps individuals cope with such stress. We propose StressTrendmeter, a mobile application that targets college students for anonymously sharing the source of stress v…	RC Ryuhaerang Choi et al.Korea Advanced Institute of Science and Technology	Remote Work, Motivation, and Burnout; Remote Work, Motivation, and Burnout
Prediction for Retrospection: Integrating Algorithmic Stress Prediction into Personal Informatics Systems for College Students' Mental Health Reflecting on stress-related data is critical in addressing one’s mental health. Personal Informatics (PI) systems augmented by algorithms and sensors have become popular ways to help users collect and reflect on data about stress. While prediction algorithms in the PI systems are mainly for diagnostic purposes, few s…	TK Taewan Kim et al.Seoul National University
emoji_events Reflect, not Regret: Understanding Regretful Smartphone Use with App Feature-Level Analysis Digital intervention tools against problematic smartphone usage help users control their consumption on smartphones, for example, by setting a time limit on an app. However, today's social media apps offer a mix of quasiessential and addictive features in an app (e.g., Instagram has following feeds, recommended feeds,…	HC Hyunsung Cho et al.Carnegie Mellon University	Workplace Challenges and Digital Wellbeing
I Share, You Care: Private Status Sharing and Sender-Controlled Notifications in Mobile Instant Messaging While mobile instant messaging (MIM) facilitates ubiquitous interpersonal communication, its constant connectivity could build the expectation of an immediate response to messages, and its notifications flood could cause interruptions at inopportune moments. We examine two design concepts for MIM---private status shar…	HC Hyunsung Cho et al.Carnegie Mellon University	Conversation and Communication