• Journal of Institute of Control, Robotics and Systems
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• v.19 no.4
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• pp.364-371
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• 2013

Emotion Recognition is one of the important part to develop in human-human and human computer interaction. In this paper, we have focused on the performance of multi-class SVM (Support Vector Machine) with Gaussian RFB (Radial Basis function) kernel, which has been used to solve the problem of emotion recognition from physiological signals and to improve the accuracy of emotion recognition. The experimental paradigm for data acquisition, visual-stimuli of IAPS (International Affective Picture System) are used to induce emotional states, such as fear, disgust, joy, and neutral for each subject. The raw signals of acquisited data are splitted in the trial from each session to pre-process the data. The mean value and standard deviation are employed to extract the data for feature extraction and preparing in the next step of classification. The experimental results are proving that the proposed approach of multi-class SVM with Gaussian RBF kernel with OVO (One-Versus-One) method provided the successful performance, accuracies of classification, which has been performed over these four emotions.

• Journal of the Korean earth science society
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• v.24 no.5
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• pp.371-377
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• 2003

The purpose of this study is to examine the effects of utilizing concept maps in a rock-related unit. To do this, two groups composed of 73 sixth grade students engaged in this study. One group (experimental group) participated in utilizing concept maps in the unit, the other (control group) took part in traditional instruction in the same unit. The results of this study are as follows, after seventeen sessions: First, the achievement between the two groups showed significant difference. It indicates that utilizing concept maps as an instructional method is effective. Second, in the examination of the experimental group's attitudes toward concept maps, the students showed more affirmative responses on cognitive items than on affective items. Third, the students showed that they have difficulty in the method and the procedure of drawing up the concept maps. It indicates that the method and the procedure are sufficiently learned before instruction begins.

• Journal of the Ergonomics Society of Korea
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• v.17 no.1
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• pp.91-102
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• 1998

History of the Sensibility Ergonomics is explained. Concepts, definition, and research methods on the human sensibility are proposed for systematic applications of human sensibility studies to product and environment developments. Sensibility Ergonomics was born in socio-technological environments where consumers required aesthetic and satisfactory products in addition to useful and usable ones, and manufactures were trying to develop consumer-oriented, user-friendly products. Sensibility Ergonomics is defined as "multi-disciplinary and inter-disciplinary processes for developing products and environment as usable, comfortable and satisfactory with the information on human sensibility." Human sensibility is functionally defined as "feelings generated when perceived sensory and information stimuli are reflected from memory which has been accumulated through personal experiences." Human sensibility is affected by at least three factors: personal, social, and cultural. Consumers evaluate products in three aspects : functional, sensorial, and cultural sensibilities. Human sensibility is personal, dynamic, and ambiguous. It is generated reflectively and intuitively against external stimuli. No Physiological responses are accompanied, and one cannot control his/her sensibility. However, the sensibility affects the decision making or behavior of the person. To understand the human sensibility many inter-disciplinary methods should be used instead of one-variable approach. Micro-scopic studies such as Questionnaire, interview, behavioral analysis, and psychophysiological experiments can be performed. In addition, social and cultural studies are essential to understand an individual's sensibility. Results of sensibility studies can be applied to setup new interactions between human and machine through sensible(or affective) human-machine (computer) interfaces. Human-oriented and user-friendly products can be made with the information on human sensibility.

• Science of Emotion and Sensibility
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• v.1 no.1
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• pp.79-91
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• 1998

이 연구의 목적은 IAPS(국제정저사진체계) 사진자극에 의해 유발된 각각의 주관적 정서상태에 특정적인 자율신경계 반응이 존재하는지를 규명하는 것이다. 부정적 정서(분노, 슬픔, 놀람)와 긍정적 정서(행복, 흥분)를 유발하는 IAPS사진을 각 60초 동안 제시하였을 때 유발되는 심박률, 호흡률, 피부전도반응을 측정하였다. 시각자극이 주어진 초리 30초 동안 통계적으로 유의미한 심박률 감속 및 호흡률 감소를 보여주었으며, 뚜렷한 피부전도반응이 출현하였다. 심박률 감속은 혐오보다 흥분에서 더 크게 나타났고, 피부전도반응의 진폭은 혐오보다 흥분에서 더 큰 것으로 나타났다. 한편, 피부전도반응의 진폭이 상승하는 시간은 슬픔, 행복, 놀람보다 혐오에서 더 짧아지는 경향을 보여주었다. 이와 같은 자율신경계 반응(심박률, 호흡률, 피부전도반응)은 정서상태간에 뚜렷한 차이를 보여주며, 특정 정서상태에서 자율신경계 반응은 개인차가 있기는 하지만 전체적으로 매우 전형적인 반응패턴을 보여주었다. 본 연구의 결과는 정서 특정적인 자율신경계 반응이 존재할 가능성을 시사해주며, 생리신호분석을 통해서 심리적 정서를 결정할 수 있는 형판(template)의 구성을 위해서 다양한 자율신경계 정서반응의 지표를 포괄적으로 측정 분석하는 후속연구가 요구된다.

• Science of Emotion and Sensibility
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• v.1 no.1
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• pp.135-143
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• 1998

이 연구에서는 국제 사진 정서체계(International Affective Picture System: IAPS)중에서 가장 강한 부적 정서를 유발하는 6장의 슬라이드를 1분 동안 연속적으로 보여주어 스트레스 상태를 야기한 뒤 1분동안 정서를 유발하는 청각자극인 1/f음악이나 which noise를 들려주거나 또는 아무소리도 들려주지 않는 각 조건에서 뇌파의 상대적 출현량(reltive power)및 호흡률, 심박률, 피부전도수준 등의 자율신경계 반응의 변화를 분석하였다. 스트레스 정서 상태에서 이완상태로의 회복을 촉진시켜줌을 시사한다. 한편, 스트레스정서유발 상태에서 1/f 음악과 white noise이 제시되었을 때의 자율신경계 반응은 현저한 대비를 보여주었다. 그러나 스트레스 정서유발 이전의 기저선 수준과 비교할 때 1/f 음악에 의한 반응수준이 white noise 에 의한 반응수준 보다 기서선 수준에서 훨씬 더 벗어나 있었다. 따라서 이 결과는 부적정서상태에 부가된 정적 유발이 활성화된 자율신경계 반응의 안정상태로의 회복을 촉진한다는 가설을 지지하거나 부정하기에는 불충분하다. 이 연구에서 정서자극 제시 후의 회복단계에서 뇌파 반응과 자율신경계 반응의 시간경과에 따른 변화가 일치하지 않는 이유는 이들 생리신호의 반응속도가 다르기 때문일 수 있다. 이 실험은 시각과 청각의 복합 감각체계를 사용하여, 스트레스 정서상태에 정적정서유발자극이 부가되었을 때 스트레스 뇌파반응에서 이완된 뇌파반응으로의 회복이 촉진됨을 보여준 최초의 연구이다.

• Journal of The Korean Association For Science Education
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• v.30 no.7
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• pp.920-932
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• 2010

Many topics in science, especially, abstract concepts, relationships, properties, entities in invisible ranges, are described in mathematical representations such as formula, numbers, symbols, and graphs. Although the mathematical representation is an essential tool to better understand scientific phenomena, the mathematical element is pointed out as a reason for learning difficulty and losing interests in science. In order to further investigate the relationship between mathematics knowledge and science understanding, the current study examined 793 high school students' understanding of the pH value. As a measure of the molar concentration of hydrogen ions in the solution, the pH value is an appropriate example to explore what a student mathematical structure of logarithm is and how they interpret the proportional relationship of numbers for scientific explanation. To the end, students were asked to write their responses on a questionnaire that is composed of nine content domain questions and four affective domain questions. Data analysis of this study provides information for the relationship between student understanding of the pH value and related mathematics knowledge.

• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.7
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• pp.1030-1041
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• 2007

The purposes of this study were to identify the sub-dimensions of consumers' attitude and types of loyalty behavior toward fashion brands, and to analyze the influence of consumers' brand attitudes on brand loyalty. A survey was conducted with the questionnaire for consumer's buying experience of fashion brand. A total of 350 questionnaires were distributed, and 341 complete responses were analyzed. Exploratory factor analysis, confirmatory factor analysis, path analysis, and multi-group analysis were used for data analysis. The results of this study were as follows. First, the consumers' brand attitude consisted of four sub-dimensions of affective, familiar, value-expressive, and utilitarian attitude. Second, each brand attitude significantly influenced the brand loyalty behavior(single-brand loyalty, multi-brand loyalty, and brand switching). Finally, the causal relationship between brand attitude and brand loyalty differed by consumer's variety seeking tendency.

• Journal of Fashion Business
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• v.24 no.6
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• pp.135-147
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• 2020

This study explored students' online fashion studio class experiences, and investigated the factors affecting their class satisfaction. An online survey of college students who were enrolled in online studio classes within apparel and fashion-related departments during the spring of 2020 was conducted in June 2020. Responses from a total of 213 participants were included in the final data. Respondents rated lecture clips as the most useful, followed by teacher demonstration and feedback, PowerPoint (PPT) supplements, and Q&As. Frequently mentioned areas of improvement were online platform stability and video quality. Many respondents also stated that more streamlined teacher-student communication channels, immediate and meticulous teacher feedback, the adoption of course contents developed specifically for an online environment, and provisions for equipment usage would be desirable. Student satisfaction of an online fashion design studio class was significantly affected by teaching presence, social presence, online learning system stability, perceived usefulness of teacher's demonstration, and affective response toward COVID-19. Students satisfaction of an online garment construction studio class was significantly affected by teaching and social presence, online learning system stability, and perceived usefulness of teacher's demonstration. Based on these findings, we recommend developing teaching contents and methods that allow students to feel included in class and establish an online system with various functions to enhance the sense of social connection that can enable two-way communication.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.4
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• pp.507-515
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• 2021

Knowledge-Worker Productivity (KWP) has been influenced by Knowledge Management Process (KMP); however, past studies derived inconsistent findings of the relationship between the two variables. Additionally, the effect of KMP on KWP in the context of universities in Sri Lanka has not been adequately studied. Therefore, this present study aims to fill that gap by examining KMP elements' effect, namely knowledge creation, knowledge sharing, and usage on KWP, specifically the timeliness, proficiency, and independence of employees. This study also examines the role of employee engagements (i.e., intellectual, social, and affective) in mediating the effect of KMP on KWP. The questionnaire survey method was utilized to collect data from relevant university employees, i.e., lecturers, senior lecturers, and professors, whereby 264 valid responses were used in the analysis. The associations between KMP, Employee Engagement, and KWP were analyzed using the path analysis and bootstrapping methods. The outcomes demonstrated positive correlations between all three variables. Employee Engagement was shown to have a partial mediating effect on the KMP-KWP association. The general conclusion is that KWP is influenced by its capacity to increase employee engagement via KMP.

• Child Health Nursing Research
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• v.29 no.1
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• pp.84-95
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• 2023

Purpose: This study aimed to conduct a concept analysis of health-related quality of life in children with epilepsy to promote conceptual clarification and facilitate mutual understanding of the concept. Methods: Walker and Avant's concept analysis method was adopted. Results: Health-related quality of life in children with epilepsy consists of six attributes: health status, inner strength, close relationships, resource-rich community, social acceptance, and changeability. According to the ecological system paradigm, these attributes are structured into five dimensions: organism, microsystem, macrosystem, exosystem, and chronosystem. These dimensions provide a comprehensive approach to the relationship between children with epilepsy and their environment. Epilepsy and interactions with multilevel ecological systems that are directly and indirectly related to children with epilepsy precede the concept, followed by positive and negative affective responses. Conclusion: The findings of this study may support effective communication in various practice settings, thereby contributing to the health and well-being of children with epilepsy, as well as the development and expansion of interventions to improve their health-related quality of life.