• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2001.05a
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• pp.73-77
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• 2001

본 논문에서는 부분적으로 관측 가능한 환경에서 사전의 모델 정보 없이 확률적인 행동 정책을 학습하는 상태 조직화 강화 학습 모델을 제안한다. 기존의 강화학습은 환경 모델을 사전에 필요로 하고 상태 전체의 관측이 필요하기 때문에 학습 이전에 문제에 대해 알아야 한다는 제약이 있다. 또한 작은 문제에 대해서는 잘 적용되지만 상태의 수가 매우 많고 부분적으로만 관측한 경우가 많은 실제 문제에는 그대로 적용하기가 불가능하다. 이러한 두 가지 단점을 해결하기 위해 본 논문에서는 사전의 모델 정보 없이 부분적인 관측값으로부터 상태와 행동 정책을 동시에 학습해 나가는 강화 학습 모델을 제안하고, 제안된 방법을 부분적으로만 관측이 가능한 미로 탐색 문제에 적용하였다.

• Journal of the Korean Home Economics Association
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• v.42 no.9
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• pp.195-212
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• 2004

The purpose of this study was to analyze consumers' perceived risk and information search behaviors in internet shopping. For this purpose, survey was conducted on 302 consumers in their 20s and 30s who had internet shopping experience. This study found that consumers' perceived risk was significantly related to their gender, educational level, income, credit card use, period of internet un, number of internet shopping experiences, and purchased product. Consumers' search behaviors were also significantly affected by gender, age, educational level, income, period of internet use, and purchased product. In addition, a higher level of consumers' perceived risk was significantly related to the amount of information search on product attributes themselves rather than on general information search such as the number of sites or the number of brands.

• Journal of Korean Home Economics Education Association
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• v.21 no.3
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• pp.123-142
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• 2009

The purpose of this study was to examine the level of recognition, information acquisition behavior, level of knowledge, level of behaviors to decrease exposure, and education need towards endocrine disruptors of middle and high school students. The data were collected from 180 middle and high school students in Seoul, Incheon, Daejeon, Daegu, Busan and Gwangju. Frequencies, Cronbach's alpha, t tests, analysis of variance, Duncan's multiple range tests, and chi-square tests were carried out by SPSS WINDOWS Version 14.0. The results of this study were as follows. The level of concerns about endocrine disruptors was somewhat low. Many respondents obtained information about endocrine disruptors from TV/radio and school, and wanted to get the information from school and TV/radio. Both the level of knowledge and the level of behaviors to decrease exposure were not particularly high. In addition, they showed high level of education need for endocrine disruptors.

• Korean Business Review
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• v.14
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• pp.211-235
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• 2001

The level and motivational basis of consumer involvement have been recognized as having important effects on purchase behavior. To explore the importance of hedonic aspects of involvement upon consumer purchase behavior, survey data on involvement degree and type concerning 8 product classes from 388 respondents was analyzed. Major findings of this study are summarized as follow. First of all, hedonic factor is evidenced as an important component of consumer involvement. In addition, hedonic dimension of involvement is proved to have significant effects on consumer purchase behavior in general. Secondly, analysis of the difference in behavioral tendencies between purchasing product with hedonic value(coffee) and utilitarian motive(washing machine) shows that consumers have relatively high in degree of brand differentiation, brand commitment, product knowledge in purchasing product with hedonic value. This means that hedonic aspect of product and thus hedonic involvement has not less important in predicting consumer behavior. Finally, several interactive effects, which suppot to and conflict against the previous research findings, between level and type of involvement upon purchase behaviors are detacted. This implies that hedonically induced involvement has moderating roles in the effects of consumer involvement on purchase behavior.

• Journal of the Society of Disaster Information
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• v.19 no.3
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• pp.519-531
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• 2023

With the aim of preventing safety accidents at construction sites, the company aims to create safe behaviors intended through variables called smart safety and health activities to help reduce industrial accidents. Purpose: It analyzes how smart safety and health activities affect accidents caused by unsafe behavior and changes in worker behavior, which is the root cause, and verifies the hypothesis that it helps prevent safety accidents and protect workers' lives. Method: Smart safety and health activities were selected as independent variables (X), and intended safety and anxiety, which are workers' behavioral intentions, were set as dependent variables (Y), attitude and subjective norms, and planned behavioral control as parameters (M). Exploratory factor analysis, discriminant validity analysis, and intensive validity analysis of safety and health activities were used to analyze the scale's reliability and validity. To verify the hypothesis of behavior change, the study was verified through Bayesian model analysis and MC simulation's probability density distribution. Result: It was found that workers who experienced smart safety and health activities at construction sites had the highest analysis of reducing unstable behavior and performing intended safety behavior. The research hypothesis that this will affect changes in worker behavior has been proven, the correlation between variables has been verified in the structural equation and path analysis of the research analysis, and it has been confirmed that smart safety and health activities can control and reduce worker instability. Conclusion: Smart safety and health activities are a very important item to prevent accidents and change workers' behavior at construction sites.

• Journal of Information Technology and Architecture
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• v.11 no.4
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• pp.471-483
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• 2014

The purpose of this study was to look over the sharing and flow of information on tourism tourist destination made through social media by utilizing social network analysis. In this research for compared the exchange and diffusion relationships and made information sharing among users of the network group for the Seoul / Busan Tourism Twitter. The first part of analysis dealt with the network centralization and information dissemination patterns from a global perspective. The second part was an analysis of nodes with the highest degree centrality in order to identify the most influential user within the Twitter network and determine the information flow and user characteristics with respect to the information dissemination pattern in Seoul/Busan tourism Twitter. The results scientific evidence was presented that social media users' information search behavior information to understand the sharing and spreading patterns, social media as a marketing tool, simple products and services that will ultimately provide the desired information detainee information is not a means of promoting utilization was presented.

• Management & Information Systems Review
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• v.18
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• pp.183-199
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• 2006

This study examines this intriguing idea In the context of the E-commerce involved in inquiring and purchasing books on the internet. Survey data from 154 potential users support and offend this hypothesis. The data show that both familiarity with an internet vendor and its processes and trust in the vendor influenced the respondent's intentions to inquire about books, it is primarily people's dispositions to trust that affected their trust in the vendor. The data support the basic assumption of the study both trust and familiarity influence E-commerce. Also, the study show that both trust in a Internet vendor and familiarity with the vendor and its procedures influence two distinct aspects of I-commerce intentions in book selling sites: inquiry and purchase. The influence if familiarity and trust are strong on people's intentions to purchase. The study show that trust and familiarity are distinctly different constructs, and that trust is significantly affected by familiarity, and not only by people's disposition to trust. The research model thus shows both trust and familiarity influence behavioral intentions. In this study, familiarity was introduced primarily as an antecedent of trust, while its role in increasing I-commerce was not as emphasized as that of trust. However, the importance of familiarity might be greater: familiarity influences both purchase intentions and inquiry intentions only slightly less than trust does.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.170-171
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• 2013

In aspect of HCI(Human Computer Interaction) gameplay is the procedure to solve the problem that gamers encounter in order to generate or discover a new rule to achieve gamers' goal. The goal of this research is to investigate the structure and understand the gameplay in aspect of affordance from ecological psychology rather than the traditional problem solving theory. This research selects 'World of Warcraft' as MMORPG(Massively Multiplayer Online Role Playing Game). Five expert gamers participated in this experiment. We record all gameplay using audio and video device. We conducted protocol analysis as qualitative method based on the verbal report and action protocol during game playing. As result, gameplay based on affordance includes selection and relation. We found that subjects selected one thing at once with attention. Moreover, we found that there were two behaviors : exploratory action and performatory action. We believe that learning, utilization, and transformation for affordance appear. The result of this research imply to suggest design guideline for game design methodology when designers develop game.

• Journal of the Society of Disaster Information
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• v.19 no.2
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• pp.352-362
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• 2023

Purpose: For effective crisis communication in the event of a disaster, we present policy measures by exploring what activities are required of companies on a daily basis. Method: Employees working for L company were surveyed about the disaster response department, disaster message, and perception of the company during the company's response to COVID-19, as well as the level of response behavior of the employee. Results: First, caller characteristics did not have a significant effect on behavioral changes of members. Second, while the disaster response message within the company had no effect on the members' normative behavior, it had a positive effect on the discretionary behavior. Third, caller characteristics and disaster response messages had a positive effect on public relations, and public relations appeared to mediate caller characteristics and members' discretionary behavior. Conclusion: Studies on disaster response messages are required in the disaster control tower inside the company in normal times, and activities to build a member-friendly corporate culture for strengthening public relations are needed.

• Journal of Korean Library and Information Science Society
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• v.46 no.4
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• pp.621-640
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• 2015

The purpose of this study is to measure the significant change in the career maturity of high school female students influenced by career exploration report writing program based on reading activities. This program was operated for a total of six weeks, and it took 100 minutes for two sessions per week with 23 high school female students. According to pre-post test comparative analysis, 5 out of 8 sub-factors of career maturity showed significant change. The 5 Factors are planning, self understanding, information search and career exploration and preparation actions. Above all the factor of knowledge on desired job especially showed a very considerable effect. But 3 factors such as attitude for occupation, independence and rational decision making did not show a significant result. Based on these, authors proposed some improvement plans of the career exploration report writing program.