• Nuclear Engineering and Technology
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• 제37권2호
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• pp.151-158
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• 2005

Advanced nuclear power plants are generally large complex systems automated by computers. Whenever a rare plant emergency occurs the plant operators must cope with the emergency under severe mental stress without committing any fatal errors. Furthermore, The operators must train to improve and maintain their ability to cope with every conceivable situation, though it is almost impossible to be fully prepared for an infinite variety of situations. In view of the limited capability of operators in emergency situations, there has been a new approach to preventing the human error caused by improper human-machine interaction. The new approach has been triggered by the introduction of advanced information systems that help operators recognize and counteract plant emergencies. In this paper, the adverse effect of automation in human-machine systems is explained. The discussion then focuses on how to configure a joint human-machine system for ideal human-machine interaction. Finally, there is a new proposal on how to organize technologies that recognize the different states of such a joint human-machine system.

• International Journal of Human Ecology
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• 제7권2호
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• pp.85-95
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• 2006

The purpose of this study was to examine mothers' ideal and actual parenting behaviors toward their infants in three parenting domains; social, didactic, and limit setting. A total of 264 mothers of young children under age three from Seoul, Korea completed Parental Style Questionnaires (PSQ). Mothers' self report on their ideal and actual parenting were explored as a function of child sex, age, and birth order. As expected, there were significant differences between mothers' ideal and actual behaviors in all three parenting domains: Mothers' ideal behaviors such as social interaction, didactic interaction and limit setting were higher than those of their actual behaviors. For mothers' ideal parenting, results revealed neither significant main effects nor interaction effects. However, the Parenting Domain x Birth-Order 2-way interaction and the Parenting Domain x Child Age 2-way interaction were significant for mothers' actual behaviors. Specifically, mothers reported more social and didactic behaviors with their first-born than later born children, but not for limit setting behavior. It was also found that higher limit setting behaviors were apparent for their 2- and 3-year-old than 1-year old children whereas lower social interactions were found for 3-year-old than for 1-year-old. In light of universality and uniqueness, mothers' parenting behavior toward young children has been discussed.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권11호
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• pp.2966-2986
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• 2023

Climate change is a constant threat to human life, and it is important to understand the public perception of this issue. Previous studies examining climate change have been based on limited survey data. In this study, the authors used big data such as news articles and social media data, within which the authors selected specific keywords related to climate change. Using these natural language data, topic modeling was performed for discourse analysis regarding climate change based on various topics. In addition, before applying topic modeling, sentiment analysis was adjusted to discover the differences between discourses on climate change. Through this approach, discourses of positive and negative tendencies were classified. As a result, it was possible to identify the tendency of each document by extracting key words for the classified discourse. This study aims to prove that topic modeling is a useful methodology for exploring discourse on platforms with big data. Moreover, the reliability of the study was increased by performing topic modeling in consideration of objective indicators (i.e., coherence score, perplexity). Theoretically, based on the social amplification of risk framework (SARF), this study demonstrates that the diffusion of the agenda of climate change in public news media leads to personal anxiety and fear on social media.

• 제어로봇시스템학회논문지
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• 제21권9호
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• pp.849-857
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• 2015

Although human-sized bipedal humanoid robots have been developed as the ideal form of human-friendly robots, studies of humanoid robots from the user perspective and of actual interaction between humanoid robots and the public in daily environments are few. This paper presents a long-term public demonstration that encouraged interaction between a humanoid robot and unspecified individuals. We have collected a significant amount of subjective evaluation data from the public by performing a storytelling demonstration that enhanced people's empathy towards the robot. The evaluation model consists of the robot's human friendliness, which involves its impression on humans, interaction with humans, and imitation of human motions and the robot's human appearance which involves gender, age, height, and body type. This study shows that there is no significant difference in human-friendliness between gender groups (male and female), while there is a significant difference between age groups (children and adults). In human appearance, it appears that there is no significant difference between either gender groups or age groups, except for the case of the robot's height.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.186-192
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• 2009

본 논문은 비전을 이용한 인간 정면 상반신 포즈를 인식 방법에 대해서 기술한다. 일반적으로 HCI(Human Computer Interaction)와 HRI(Human Robot Interaction)에서는 인간이 정면을 바라볼 때 얼굴, 손짓으로 의사소통 하는 경우가 많기 때문에 본 논문에서는 인식의 범위를 인간의 정면 그리고 상반신에 대해서만 한정한다. 인간 포즈인식의 주요 두 가지 어려움은 첫째 인간은 다양한 관절로 이루어진 객체이기 때문에 포즈의 자유도가 높은 문제점 때문에 모델링이 어렵다는 것이다. 둘째는 모델링된 정보와 영상과의 매칭이 어려운 것이다. 이를 해결하기 위해 본 논문에서는 모델링이 쉬운 그림모델(Pictorial Model)을 이용해 인체를 다수 사각형 파트로 모델링 하였고 이를 이용해 주요한 상반신 포즈를 DB화 해 인식한다. DB 포즈로 표현되지 못하는 세부포즈는 인식된 주요 포즈 파라미터로 부터 파티클필터를 이용해 예측한 다수 파티클로부터 가장 높은 사후분포를 갖는 파티클을 찾아 주요 포즈를 업데이트하여 결정한다. 따라서 주요한 포즈 인식과 이를 기반으로 한 세부 포즈를 추적하는 두 단계를 통해 인체 정면 상반신 포즈를 정확하게 인식 할 수 있다.

• BMB Reports
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• 제50권11호
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• pp.535-536
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• 2017

A novel approach has been used to identify functional interactions relevant to human disease. Using high-throughput human-yeast genetic interaction screens, a first draft of disease interactome was obtained. This was achieved by first searching for candidate human disease genes that confer toxicity in yeast, and second, identifying modulators of toxicity. This study found potentially disease-relevant interactions by analyzing the network of functional interactions and focusing on genes implicated in amyotrophic lateral sclerosis (ALS), for example. In the subsequent proof-of-concept study focused on ALS, similar functional relationships between a specific kinase and ALS-associated genes were observed in mammalian cells and zebrafish, supporting findings in human-yeast genetic interaction screens. Results of combined analyses highlighted MAP2K5 kinase as a potential therapeutic target in ALS.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2001년도 Bulletin of The 5th Asian Design Conference International Symposium on Design Science
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• pp.41.2-41
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• 2001

• 스마트미디어저널
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• 제11권6호
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• pp.9-17
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• 2022

코로나19 팬데믹 시대를 거치면서 비대면 서비스가 요구되었고 확장현실 및 메타버스 서비스의 활용이 다양한 응용 분야에서 급증하였다. 이 논문은 국내외에서 활발하게 사용되는 메타버스 플랫폼인 게더타운, 이프랜드, 로블록스, 제페토를 사용자 인터랙션, 아바타 기반 인터랙션, 가상 세계 생성의 측면에서 분석한다. 특히 사용자의 현실 세계에서 발생하는 사용자 입력 기법, 가상 세계에서 사용자를 나타내는 아바타의 표현 기법, 그리고 사용자 참여를 통해 가상 세계를 제작하는 인터랙션 유형으로 구분하여 설명한다. 이를 통해 현재 메타버스 인터랙션의 추세와 요구를 도출하고 휴먼-메타버스 인터랙션의 기회와 발전 방향을 전망한다.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1998년도 춘계학술발표 논문집
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• pp.304-308
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• 1998

Technical advances in computer networks and the Internet bring a new communication era and provide effective solutions for cooperative works and research. These technological advances introduced the concept of cyberspace that many people involve reseach and a project at different locations at the same time. In this paper, we present a fast and effective interaction protocol that is aeapted to the COLAB(COIIaborative LABoratory) Systems which use a high-speed ATM Network. The CCOLAB systems is developed for researchers those who are doing a large project on the collaborative research environment. The interaction protocol that we developed supports multi-session and multi-channel on the TCP/IP Network and provides more flexible solution to control multimedia data on the network.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제11권2호
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• pp.101-106
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• 2022

최근 가상 휴먼은 국방, 의료, 산업, 유통, 문화, 엔터테인먼트 등 다양한 서비스 분야에서 교육, 훈련 정보 가이드, 홍보 전시 등 널리 활용되고 있다. 또한, 가상 휴먼을 통해 원격지에 접속한 사용자와 상호작용하기 위한 메타버스 서비스가 급속히 확대 적용될 것으로 전망하고 있다. 메타버스 환경 안에서 가상 휴먼(혹은 아바타)을 이용한 상호작용은 참여자가 현실 세계의 실제 친구와 대화하는 것처럼 자연스럽게 소통하는 방식으로 운용이 되고, 이를 위해서는 사용자의 음성, 동작, 감정 등 다양한 입력을 기반으로 반응하는 가상 휴먼 상호작용 매핑 관계를 제작하여야 한다. 또한, 현실 세계의 변화에 동작하는 가상 휴먼의 경우 현실의 환경에 기반한 상호작용 동작이 되도록 지원하여야 한다. 하지만, 기존 가상 휴먼 상호작용 방법은 미리 정해진 반응형 패턴을 제작하기 위해 수작업으로 동작 결과를 프로그래밍하여 구현되었다. 이러한 방법은 개발 기간이 상대적으로 많이 소요되고, 상호작용 수정이 쉽게 변경하지 못하는 단점이 있다. 또한, 실제 주변 환경의 영향에 의해 반응적으로 동작하는 상호작용을 지원하기가 어렵다고 할 수 있다. 본 논문에서는 가상 휴먼의 직관적인 상호작용을 위해 음성, 동작, 감정 등 사용자의 멀티모달 입력과 주변 환경에 대한 반응하는 가상 휴먼 제작 방법을 제시한다. 이를 위한 가상 휴먼 상호작용 저작도구를 통해 쉽고 빠르게 사용자와 반응하는 가상 휴먼의 표현을 생성하고, 가상 휴먼이 자동 적응 기반으로 사용자 입력 및 주변 환경에 변화에 동작할 수 있도록 하였다.