• Journal of Korea Society of Industrial Information Systems
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• v.20 no.4
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• pp.1-9
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• 2015

This paper proposes CAC method that is more efficient for RRM using game theory combined with Multiple Attribute Decision Making(MADM). Because users request services with different Quality of Service(QoS), the network preference values to alternative networks for each service are calculated by MADM methods such as Grey Relational Analysis(GRA), Simple Additive Weighting(SAW) and Technique for Order Preference by Similarity to Ideal Solution(TOPSIS). According to a utility function representing preference value, non-cooperative game is played, and then network provider select the requested service that provide maximum payoff. The appropriate service is selected through Nash Equilibrium that is the solution of game and the game is played repeated. We analyze two overlaid networks among four Wireless LAN(WLAN) systems with different properties. Simulation results show that proposed MADM techniques have same outcomes for every game round.

• Journal of The Korean Association For Science Education
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• v.38 no.5
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• pp.681-691
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• 2018

The purpose of this study is to investigate the impacts of Collaborative Problem solving for Character competency (CoProC) strategy on the practical character competency and collaborative problem solving competency in middle school. For this study, 49 seventh grade students (two classes) were selected for use applying the CoProC strategy (CoProC group) while 46 students (two classes) were used for traditional lecture and experimental class (comparative group). In the result, CoProC group showed a statistically significant result in practical character competency than the comparative group. In the sub items of the competency, the CoProC group showed result statistically significant in cooperation, communication, responsibility, and positive self-understanding than the comparative group. Analysis of the effect size of students' practical character competency showed that the CoProC group results showed more effective than the comparative group in terms of care, cooperation, communication, honesty, responsibility, positive self-understanding, and self-regulation. In addition, we investigated the effect of the CoProC strategy on collaborative problem solving competency. As a result, it showed a large effect in the total score of collaborative problem solving competency. Among the sub items of the competency, 'exploration and understanding of members' showed a small size of effect and 'Establishing and maintaining team organization' showed a medium size of effect. 'Communication' and 'self-reflection' showed a large effect. CoProC strategy embedded in Science subject could improve students' collaborative problem solving competency through the process of scientific communication in the scientific inquiry process.

• 한국신재생에너지학회:학술대회논문집
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• 2010.06a
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• pp.152.1-152.1
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• 2010

최근들어 기후변화와 자원부족이 현실적 위협으로 등장하면서 에너지와 환경문제가 국가경제의 미래를 결정하는 주요변수로 부각되고 있다. 이는 환경이 경제성장의 제약요인이 아닌 지속성장을 가능하게 하는 새로운 기회요인으로 전환되었음을 의미한다. 이러한 이유로 미국 EU 일본 등 선진국들은 녹색시장을 선도하기 위해 자신들의 국력을 집중하고 있다. 우리나라는 고유가로 인한 자원부족과 기후변화 위기를 극복하기 위하여 미래지향적인 저탄소 녹색성장을 새로운 국가비전으로 제시(815 경축사)한 바 있으며, 녹색성장은 신성장동력과 일자리 창출을 주도할 수 있는 신국가발전 패러다임으로 자리잡았다. 이에 따라 에너지분야의 국가정책을 주도하기 위한 일환으로 그린에너지기술의 국가별 협력체계 구축을 통해 에너지기술개발 대안 수립이 필요하다. 우리는 선진국과 기술수준을 비교할 때 상대적으로 기술개발 후발자(follower)로서, 효과적으로 그린에너지기술을 개발하기 위해서는 선진국과의 국제협력이 현실적인 대안이라고 할 수 있다. 본 연구에서는 AHP기법과 SM기법을 복합적으로 활용하여 12대 그린에너지기술의 국제협력을 위한 영향요인 발굴 및 평가에 적용하였고, 각 기술별 전략품목에 대한 평가를 통해 국제협력 우선순위를 산정하였다. 영향요인으로는 국제협력유형, 기술개발 시급성, 기술수준, 시장성, 수출성을 고려하였으며, 평가결과는 CCS가 가장 높은 것으로 나타났다. 다음으로 그린카, 전력IT, IGCC가 상위권 그룹에 속하는 결과를 도출하였다.

• Product Safety
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• s.59
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• pp.18-19
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• 1997

오늘날 미국에서는 [ $\ulcorner$ ]오픈북 경영(Open-Book Management$\lrcorner$이라는 새로운 경영방식이 확산되고 있다. 종합적으로 품질경영, 팀 중심 품질관리, 종업원의 권한확대 등의 개념이 과거의 상명하달식 의사전달체계나 명령에 대한 절대적 복종 등의 경영체계가 시대에 뒤진 것으로 치부되고, 근로자는 종업원이라기보다 협력자로 간주되며, 경영자는 감독이 아닌 코치로 이해되는 것이다

• Journal of Intelligence and Information Systems
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• v.10 no.2
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• pp.147-163
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• 2004

For the purchase of a cheaper product on the Internet, many customers have been trying to search online shopping mall sites and visit comparison-pricing shops that compare prices and other criteria of the product. Others have been participating into online auction markets or group-buying markets. However, a lot of online shopping malls, auction markets, and group-buying markets provide the same product with different prices. Since these marketplaces have different price settlement mechanism, it is very difficult for the customers to determine marketplace to purchase, considering different kinds of marketplaces at the same time. To overcome such limitations, decision rules and solution procedures for purchase decision making are necessary, which can cover multiple marketplaces simultaneously. For this purpose, purchase decision making in each market must be conducted to maximize customer's utility, and conflicts with other marketplaces must be resolved. Therefore, we have developed the rules and methods that can negotiate cooperatively the purchase decision making in several marketplaces, and designed an architecture of Intelligent Buyer Agent and a message structure to support the idea.

• Journal of Korean Library and Information Science Society
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• v.54 no.1
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• pp.191-220
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• 2023

This research attempts to identify how members of an online community collaboratively engaged with particular social information behaviors and accomplished a defined collective action. While responding to the Sewol Ferry tragedy, MissyUSA members quickly communicated and mobilized a collective action, a full-page ad campaign in The New York Times. As a follow up study, this secondary analysis quantitatively analyzes the primary data from a previous study to explore potential relationships or underlying factors among the various identified information behaviors. In this study, nineteen of the previously identified information behaviors were analyzed using exploratory factor analysis, yielding a total of eight factors. The two major factors of shared representation/collective identification and mobilizing resources verified the findings of the previous study and are in line with the findings typical of political science. The three factors of collaborative decision-making, reaction to tension, and brainstorming were factors that maximized communication and mobilization online, without any face-to-face communication or physical organization. Three emergent factors of outburst of dissent, boycott, and planning explained how members used negative emotions of anger, referential information for boycott, and incubated next collective actions. Through exploratory factor analysis, this study verifies and expands on the findings of the previous study by identifying several emergent factors that relate to the collaborative information behaviors of an online community engaged in a collective action.

• Korean Journal of Child Studies
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• v.33 no.5
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• pp.71-89
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• 2012

This study examined the characteristics of early child care teachers and the ways this influences their abilities to promote the parent-teacher partnerships. 266 early child care teachers participated in this study. Parent-teacher partnerships, communication competence, interpersonal competence, and teacher efficacy in enlisting parental involvement were measured by means of The Caregiver-Parent Partnership Scale, Global Interpersonal Communication Competence Scale, Interpersonal Competence Questionnaire and selected elements of the Teacher Self-efficacy Scale. The results indicated that parent-teacher partnerships were significantly different in terms of the characteristics of teachers. The hierarchical multiple regression analysis revealed that the communication competence, interpersonal competence, and teacher self-efficacy significantly predicted the type and quality of parent-teacher partnerships. In conclusion, improving the effectiveness of parent-teacher partnerships seems heavily dependent upon the quality and personal abilities an beliefs of early child care teachers.

• Management & Information Systems Review
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• v.35 no.2
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• pp.205-220
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• 2016

The purpose of this research was to figure out what impacts technology and market orientation have on technological cooperation and management performance by analyzing the factors of technological cooperation aimed at firm's product development. In addition, the research was purported to help CEO and policy makers make better decision about technological cooperation by means of the systematic examination on the impacts that different factors of technological cooperation have on the management performance. For this purpose, it was analyzed first what kind of technology or factors of market orientation might affect manufacturer's technological cooperation. From the analysis, it was found that technological cooperation is affected by the factors of market orientation, which means that a firm needs strategic technological cooperation by taking into account multi-dimensional factors of technology and market when the firm aims at developing technology and market orientation. Second, it was analyzed whether a firm's technological cooperation has an impact on its performance. The results indicated that the impact differs in the degree of process of technological cooperation, implying that managing firm's technological cooperation is important in order to improve the quality of management performance. Third, it was analyzed through what structural relations technology and market orientation could exercise impacts on management performance. It was discovered from the 1analysis that technology and market orientation have an impact on management performance. To improve management performance, it seems essential to determine the order of priority among technology and factors of market orientation.

• Communications of Mathematical Education
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• v.36 no.3
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• pp.373-395
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• 2022

This study aimed to examine how prospective mathematics teachers (PMTs) perceive collaborative problem-posing (CPP) as a method to cultivate students' creativity and character in mathematics education. This is to propose the introduction of CPP at the stage of preparatory math teacher education as one of the ways to reinforce the creativity and character education capacity of PMT), and to attempt to be an opportunity to actively utilize CPP in math teaching-learning in the school field for the education of students' creativity and character. To achieve this objective, I designed PMTs taking the 'Educational Theories for Teaching Mathematics' course, required in the second year of university, to experience CPP tasks. Data were collected through questionnaires or interviews over three years on how PMTs recognized the CPP tasks as a tool to cultivate students' creativity and character in secondary schools. The results of the study are as follows. First, PMTs recognized regardless of their CPP experience that CPP might have a positive impact on improving students' ability to devise various ideas and that it positively influences students' attitudes toward building interpersonal relationships, including teamwork, respect, and consideration. Second, the experience of PMTs participating in the CPP made them more positively aware that CPP is effective in improving students' ability to elaborate on ideas. Third, the PMTs' experience of participating in CPP led to a more positive perception of the impact of CPP on the students' abilities and attitudes, namely, the students' ability to elaborate on ideas and their inner attitudes toward individuals, including honesty, fairness, and responsibility, and the attitude of students regarding logically presenting their opinions and making rational decisions. Finally, if there are downsides to the offline environment, an online environment may be more beneficial.

• Journal of Hospice and Palliative Care
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• v.17 no.4
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• pp.278-288
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• 2014

Purpose: The purpose of this study is to analyze types of shared medical decision making by health professionals in a decision making position. Methods: The Q-methodology was used. Q sample was constructed with a total of 35 Q-statements that were offered with a 9-point rating scale. The statements were structured to generate answers that would form a shape of a normal distribution. Answers to Q sample were analyzed using a QUANL PC program. Results: Four types of shared medical decision making were identified. Type I is patient-centered decision making, Type II is physician-centered, Type III is health professional-centered and Type IV is patient-family-centered. Conclusion: Study results indicate that it is recommended to develop an education program based on the four types of shared medical decision making so that health professionals can be provided with different approaches according to their decision making style.