Joongseek Lee

DOWELL: Dwell-time Based Smartphone Control Solution for People with Upper Limb Disabilities

This research suggests the use of DOWELL, a dwell-time-based smartphone control solution, for people with upper limb disabilities who are unable to interact with an interface. DOWELL is an application for smartphones that uses existing computer assistive devices and does not require additional assistive devices for smartphones. User interviews and task analysis results from eight participants with upper limb disabilities informed four design implications to create dwell-time software for smartphone so this have difference with solution for computer. Guardrail UI uses the edge of the mobile device to help people with upper limb disabilities. The use of various gestures on a smartphone without clicking is also suggested.

Can a Machine Tend to Teenagers' Emotional Needs?: A Study with Conversational Agents

As teen stress and its negative consequences are on the rise, several studies have attempted to tend to their emotional needs through conversational agents (CAs). However, these attempts have focused on increasing human-like traits of agents, thereby overlooking the possible advantage of machine inherits, such as lack of emotion or the ability to perform calculations. Therefore, this paper aims to shed light on the machine inherits of CAs to help satisfy the emotional needs of teenagers. We conducted a workshop with 20 teenagers, followed by in-depth interviews with six of the participants. We discovered that teenagers expected CAs to (1) be good listeners due to their lack of emotion, (2) keep their secrets by being separated from the human world, and (3) give them advice based on the analysis of sufficient data. Based on our findings, we offer three design guidelines to build CAs.

A Data-driven Approach to Explore Television Viewing in the Household Environment

The rise of small, IoT-related devices and sensors have enabled us to sense and collect data than ever before. In this study, we walk through our attempt of a data-driven approach in collecting behavioral data on television viewing, an activity thought as passive and habitual. We conducted a 14 day experiment with 13 households in the wild using a data logger installed at each house. Television-related data in IR log data and IPTV packets, and contextual data in Bluetooth signal data and brightness data are collected through the data logger. The data is supplemented by the qualitative situational information that participants provided via in-situ chatbot surveys. Our non-intrusive data logger has enabled behavioral data collection in a natural, comprehensive manner. Detailed television viewing behaviors recorded through IR data logs, volume of viewing sessions, and in-situ chatbot responses show how television viewing is heavily context-dependent than previously thought.

Re-intermediation in the Fashion Industry: A Qualitative Study on Brokers in the Dongdae-mun Fashion District

This study investigates the change of intermediaries’ roles in the presence of infomediaries, and the conditions that necessitate the re-introduction of the middlemen as “re-intermediaries”. We observed a group of brokers who work in the Dongdae-mun fashion district in Seoul, Korea through multi-angled observations including obervations, contextual inquiries, and in-depth interviews. Our findings show that while an infomediary provides the fashion ecosystem a new way for information access, the reliability and depth of information relayed by human sources, along with the subjective nature of fashion and style have contributed to the brokers playing a major role in the fashion district. The DDM fashion district relies heavily on the brokers’ evaluations on trends, fashion, and product popularity, in addition to their traditional role of distributing goods in a quick manner.

How to juggle work & family: a mixed method study on home-based mom teleworkers

This study investigates how boundary management between childcare and work affects the practice of telework. Such approach is meaningful since the employees’ initial motivation to work away from the office is likely to influence the actual practice of telework, which in the case of Korean women were childcare. We observed home-based women teleworkers who are concurrently taking care of their child, principally focusing on how child caring context affects individual and collaborative working behavior, as well as information device usage. Multi-angled observations, including surveys, in-depth interviews, and data log analysis were conducted, to investigate the practical difficulties women encounter while working at home. Our findings show that at an individual level, child-centric time management influenced the type of tasks possible. At a collaborative perspective, this also intensified asynchronicity. Lastly, mothers were frequently in a physically dynamic state, thereby showing notable use of mobile devices and hands-free input.