Hyunsoo Lee

schoolKorea Advanced Institute of Science and Technologybar_chart#1369 Global Rank

Total Papers

HCI Rank

#1369

Research Areas

Years Active

Recent Publications

Mind the SIM: Awareness and Mental Models in a South Korean Case Study

Mobile phone numbers function as single keys to banking, government, and commerce, making the Subscriber Identity Module (SIM) a critical element of security. In April 2025, South Korea’s largest carrier experienced a SIM breach that compromised authentication keys and exposed nearly 27 million subscriber identifiers.…

CHI '263rd AuthorBehavior Change & Reflection Technology +2

Why stressed, Mom?: Exploring Family Reflection on Social and Emotional Sensor Data through Family Informatics

While family informatics has been developed for monitoring and tracking family-centered health data, there remains a gap in understanding how family informatics can support families in reflecting on their social behaviors and emotional dynamics. We address this gap with SELaD, a system that captures and visualizes soc…

CSCW '241st AuthorSession 2a: Navigating Family Dynamics and Youth Health Journeys

FamilyScope: Visualizing Affective Aspects of Family Social Interactions using Passive Sensor Data

This work presents FamilyScope, a sensor-based family informatics system that enables reflection upon family data collected from family activity scenarios (e.g., game playing and movie watching) that include affective aspects of a family's social interactions. We conducted a user study with ten families (n=30) in a sm…

CHI '241st AuthorPrivacy by Design & User Control +2

PriviAware: Exploring Data Visualization and Dynamic Privacy Control Support for Data Collection in Mobile Sensing Research

With increased interest in leveraging personal data collected from 24/7 mobile sensing for digital healthcare research, supporting user-friendly consent to data collection for user privacy has also become important. This work proposes \emph{PriviAware}, a mobile app that promotes flexible user consent to data collecti…

CHI '211st AuthorMental Health Apps & Online Support Communities +1

Sticky Goals: Understanding Goal Commitments for Behavioral Changes in the Wild

A commitment device, an attempt to bind oneself for a successful goal achievement, has been used as an effective strategy to promote behavior change. However, little is known about how commitment devices are used in the wild, and what aspects of commitment devices are related to goal achievements. In this paper, we ex…

CHI '212nd AuthorSleep & Stress Monitoring +1

GoldenTime: Exploring System-Driven Timeboxing and Micro-Financial Incentives for Self-Regulated Phone Use

User-driven intervention tools such as self-tracking help users to self-regulate problematic smartphone usage. These tools basically assume active user engagement, but prior studies warned a lack of user engagement over time. This paper proposes GoldenTime, a mobile app that promotes self-regulated usage behavior via…

CHI '193rd AuthorDark Patterns Recognition +1

LocknType: Lockout Task Intervention for Discouraging Smartphone App Use

Instant access and gratification make it difficult for us to self-limit the use of smartphone apps. We hypothesize that a slight increase in the interaction cost of accessing an app could successfully discourage app use. We propose a proactive intervention that requests users to perform a simple lockout task (e.g., ty…

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