- AI in Service Interactions
- Innovative Human-Technology Interaction
- Digital Mental Health Interventions
- Sexuality, Behavior, and Technology
- Interactive and Immersive Displays
- Impact of Technology on Adolescents
- Mental Health via Writing
- Social Robot Interaction and HRI
- Usability and User Interface Design
- Technology and Data Analysis
- Electric and Hybrid Vehicle Technologies
- Digital Marketing and Social Media
- Video Analysis and Summarization
- Digital Communication and Language
- Persona Design and Applications
- Digital Games and Media
- Virtual Reality Applications and Impacts
- Technology Use by Older Adults
- Multimedia Communication and Technology
- Gender, Feminism, and Media
- Tactile and Sensory Interactions
- Diverse Approaches in Healthcare and Education Studies
- Human-Automation Interaction and Safety
- Digital Economy and Work Transformation
- Magnetic and transport properties of perovskites and related materials
Seoul National University
2016-2025
Samsung (South Korea)
2007-2015
Texas A&M University
2011-2014
Hyundai Mobis (South Korea)
2009
Mitchell Institute
2009
Carnegie Mellon University
2005-2007
This study aims to explore the feasibility of a text-based virtual agent as new survey method overcome web survey's common response quality problems, which are caused by respondents' inattention. To this end, we conducted 2 (platform: vs. chatbot) × (conversational style: formal casual) experiment. We used satisficing theory compare responses' data quality. found that participants in chatbot survey, compared those were more likely produce differentiated responses and less satisfice; thus...
Abstract Tunable and enhanced low‐field magnetoresistance (LFMR) is observed in epitaxial (La 0.7 Sr 0.3 MnO 3 ) 0.5 :(ZnO) (LSMO:ZnO) self‐assembled vertically aligned nanocomposite (VAN) thin films, which have been grown on SrTiO (001) substrates by pulsed laser deposition (PLD). The LFMR properties of the VAN films reach values as high 17.5% at 40 K 30% 154 K. They can be attributed to spin‐polarized tunneling across artificial vertical grain boundaries (GBs) introduced secondary ZnO...
Background: In addition to addiction and substance abuse, motivational interviewing (MI) is increasingly being integrated in treating other clinical issues such as mental health problems. Most of the many technological adaptations MI, however, have focused on delivering action-oriented treatment, leaving its relational component unexplored or vaguely described. This study intended design a conversational sequence that considers both technical components MI for concern. Objective: case aimed...
Although group chat discussions are prevalent in daily life, they have a number of limitations. When discussing chat, reaching consensus often takes time, members contribute unevenly to the discussion, and messages unorganized. Hence, we aimed explore feasibility facilitator chatbot agent improve discussions. We conducted needfinding survey identify key features for chatbot. then implemented GroupfeedBot, that could facilitate by managing discussion encouraging participate evenly, organizing...
Recently, Artificial Intelligence (AI) has been used to enable efficient decision-making in managerial and organizational contexts, ranging from employment dismissal. However, avoid employees’ antipathy toward AI, it is important understand what aspects of AI employees like and/or dislike. In this paper, we aim identify how perceive current human resource (HR) teams future algorithmic management. Specifically, explored factors negatively influence perceptions making work performance...
Enterprises have recently adopted AI to human resource management (HRM) evaluate employees' work performance evaluation. However, in such an HRM context where multiple stakeholders are complexly intertwined with different incentives, it is problematic design reflecting one stakeholder group's needs (e.g., enterprises, HR managers). Our research aims investigate what tensions surrounding exist among and explore solutions balance the tensions. By conducting stakeholder-centered participatory...
Both enterprises and their employees have globally experienced remote work at an unprecedented scale since the outbreak of COVID-19. As pandemic becomes less a threat, some companies called back to physical office, citing issues related working remotely, but many refused return. Thus, in metaverse has gained much attention as alternative that could complement weaknesses completely or even offline work. However, we do not know yet what benefits drawbacks legitimate workspace, because there...
Abstract A thin layer of a vertically aligned nanocomposite (VAN) structure is deposited between the electrolyte, Ce 0.9 Gd 0.1 O 1.95 (CGO), and thin‐film cathode layer, La 0.5 Sr CoO 3 (LSCO), solid‐oxide fuel cell (TFSOFC). The self‐assembled VAN nanostructure contains highly ordered alternating vertical columns CGO LSCO formed through one‐step deposition process that uses pulsed laser deposition. significantly improves overall performance TFSOFC by increasing interfacial area electrolyte...
Online chat functions as a discussion channel for diverse social issues. However, deliberative and consensus-reaching can be difficult in online chats part because of the lack structure. To explore feasibility conversational agent that enables discussion, we designed developed DebateBot, chatbot structures encourages reticent participants to contribute. We conducted 2 (discussion structure: unstructured vs. structured) × (discussant facilitation: unfacilitated facilitated) between-subjects...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> A variable-speed engine generator set for an isolated power system is investigated due to reduced fuel consumption and less emission. However, because of the sluggish dynamic behavior internal combustion engine, quality would be degraded during sudden load surge, where required by not available speed. An based on a with supercapacitor bank can improve characteristics under such change, quality,...
As mobile instant messaging has become a major means of communication with the widespread use smartphones, emoticons, symbols that are meant to indicate particular emotions in messages, have also developed into various forms. The primary purpose this study is classify usage patterns emoticons focusing on variant known as "stickers" observe individual and social characteristics emoticon reinterpret meaning messages. A qualitative approach an in-depth semi-structured interview was used uncover...
<sec> <title>BACKGROUND</title> Diabetes requires continuous management to prevent complications. Many patients rely on online search engines and mobile health apps for information, but these tools often lead information overload, complex navigation, lack of personalization. Generative AI chatbots have emerged as promising alternatives by providing accessible tailored recommendations, addressing each patient's unique needs more effectively. </sec> <title>OBJECTIVE</title> This study explores...
This study compares the effectiveness of artificial intelligence (AI)-aided versus human-assisted fact-checking for different types news, namely hard and soft news. To this end, an online experiment was carried out separately in Korea United States, employing a 2 (news type: news vs. news) × (fact-checker: AI human experts) between-group factorial design. Findings suggest that AI’s fact-checking, with its perceived objectivity lack bias, is potentially more effective straightforward while...
Augmentative and alternative communication (AAC) technologies are widely used to help non-verbal children enable communication. For AAC-aided be successful, caregivers should support with consistent intervention strategies in various settings. As such, need continuously observe discuss children's AAC usage create a shared understanding of these strategies. However, often find it challenging effectively collaborate one another due lack family involvement the unstructured process...
Image-based sexual abuse (IBSA) is a severe social problem that causes survivors tremendous pain. IBSA may encounter lack of information and victim blame when seeking online offline assistance. While institutions support survivors, they cannot be available 24 hours day. Because the immediate reaction to crucial remove intimate images prevent further distribution, need first responders who are always accessible do not them. Chatbots constantly available, judge conversation partner, deliver...
Many people gather online and form teams with strangers to collaborate on tasks. However, while intrateam trust cohesion are critical for team performance, such characteristics take time establish harder build up through computer-mediated communication. Building prior research that has shown enhancing familiarity between members can help, we hypothesized the use of a chatbot support familiarization ad hoc teammates help their collaboration. As such, designed IntroBot, builds an discussion...
The elder population is rising worldwide; in the US, no longer being able to drive a significant marker of loss independence. One approaches helping elders more safely investigate use automotive user interface technology, and specifically, explore instrument panel (IP) display design help attract manage attention make information easier interpret.
With the advancement of AI, even people without professional experience can create artworks using AI-based image generation systems like DALL-E 2. However, little is known about how users interact with these new AI algorithms, much less AI-infused be designed. We explore user technologies and their potential to foster creativity. A study was carried out where 13 participants executed tasks creating 2 alongside in-depth interviews related experience. The results showed that had ambivalent...
Text-based interpersonal communication tools such as instant messenger are widely used today. These often feature emoticons that people use to express emotion some degree. However, still lack the ability communicate details of an emotional response, speaker's tone voice or intensity emotion. In this paper, we hypothesize kinetic typography - text moves changes over time can address problem by enhancing qualities using its dynamic and expressive properties.This paper presents a study showing...
Emotional eating (EE) is one of the most significant symptoms various disorders. It has been difficult to collect a large amount behavioral data on EE; therefore, only partial studies this symptom have conducted. To provide adequate support for online social media users with EE, we must understand their behavior patterns design sophisticated personalized system (PSS).This study aimed analyze emotional eaters as first step designing intervention system.The machine learning (ML) framework and...
For the past few years, voice assistant (VA) has been widely used around world. Current assistants provide a gendered to sound more natural and life-like, but most of them have female as default setting. Our study explored how gender stereotypes women are reflected in with voices through analyzing five South Korean VAs. We collected 1,602 responses from VAs conducted thematic analysis examine patterns stereotype. As result, we categorized three distinct characteristics: (1) bodily display,...
Automated journalism refers to the generation of news articles using computer programs. Although it is widely used in practice, its user experience and interface design remain largely unexplored. To understand perception an automated system, we designed NewsRobot, a research prototype that automatically generated on major events PyeongChang 2018 Winter Olympic Games real-time. It produces six types by combining two kinds content (general/individualized) three styles (text, text+image,...
Sexual assault survivors hesitate to disclose their stories others and even avoid case-reporting because of psychological, social, cultural reasons. Thus, conversational agents (CAs) have gained much attention as a potential counselor CAs' characteristics (e.g., anonymity) could mitigate various difficulties human-human interaction (HHI). Despite the potentials, it is difficult design CA for aspects should be considered. Especially, with traditional HCI approaches only need-finding usability...
Chatbots are developed using two approaches: rule-based and ML-based. The former has a scripted tree structure consisting of questions answers, while the latter can understand intent user's question generate answers from machine learning. Despite these benefits, each method drawbacks: chatbots cannot answer slightly different with same meaning in patterns, ML-based have difficulty performing continuous conversations keeping conversation context. We propose concept hybrid chatbot that...