• 영어어문교육
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• 제15권3호
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• pp.199-222
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• 2009

As great attention is given to a high quality of English education in Korea, more and more in-service and pre-service English teachers are looking for an opportunity to study in an English speaking country to become better qualified teachers. However, after receiving a degree in an English speaking country, many teachers fail to apply what they have learned to their own teaching due to their tensions of identity, beliefs, knowledge, and professionalism within the changes of sociocultural settings. By using sociocultural theory as a theoretical framework, this paper explores how formal training and Ph.D. studies in the U.S. have influenced a Korean teacher educator in applying theory to practice in relation to her identity, beliefs, knowledge, and professionalism during 30 years of her teaching experience. Rather than facing tensions, the teacher educator has been willing to change her roles, broaden and deepen her beliefs in teaching and knowledge about theory of teaching and learning, and continue her professional development. Limitations and implications of the study are provided.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.1121-1124
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• 1993

We propose two-degree-of-freedom fuzzy neural network control systems. It has a hierarchical structure of two sets of control knowledge, thus it is easy to extract and refine fuzzy rules before and after the operation has started, and the number of fuzzy rules is reduced. In addition an example application of automatic vehicle operation is reported and its usefulness is shown simulation.

• Journal of Information Processing Systems
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• 제16권1호
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• pp.184-200
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• 2020

Similarity searching is a basic issue in information processing because of the large size of formal contexts and their complicated derivation operators. Recently, some researchers have focused on knowledge reduction methods by using granular computing. In this process, suitable information granules are vital to characterizing the quantities of attributes and objects. To address this problem, a novel approach to obtain an entropy-weighted concept lattice with inclusion degree and similarity distance (ECLisd) has been proposed. The approach aims to compute the combined weights by merging the inclusion degree and entropy degree between two concepts. In addition, another method is utilized to measure the hierarchical distance by considering the different degrees of importance of each attribute. Finally, the rationality of the ECLisd is validated via a comparative analysis.

• 한국정보시스템학회지:정보시스템연구
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• 제20권1호
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• pp.147-169
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• 2011

In organizations, evaluating the competency of individuals through the position or status has many limitations. To overcome these limitations, this study analyzes the organization's informal network using social network analysis. We measured out-degree centrality and in-degree centrality by making use of social network analysis technique. Out-degree centrality is interpreted as 'madangbal' in that actors actively help other people, while in-degree centrality is interpreted as 'prestige' in that other people want to have a relationship with. This research examines the effects of individual's 'prestige' and 'madangbal' in the instrumental network and communication network on IT competency. We carried out empirical analysis using social network data that were collected from undergraduate students. The result reveals that relationship between IT competency and centrality in the instrumental network is statistically significant, while relationship between IT competency and centrality in the communication network does not show significant results.

• 한국식품영양학회지
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• 제19권3호
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• pp.301-310
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• 2006

This study was aimed to evaluate the relation of food hygiene knowledge and practices of the contract foodservice employees and housewives. The employees were mainly sampled using convenience sampling method and surveyed through the questionnaire. The SPSS 12.0 was used for statistical analysis: data frequency, t-test, one-way ANOVA. The scores of the contract foodservice employees were higher in personal hygiene and time-temperature control from hygiene knowledge category and in cleaning & sanitizing, and time-temperature control from hygiene practice category than those of housewives. The level of hygiene knowledge improved with continuous education, and people aged over 51 year showed better score in hygiene practices than those of age 20${\sim}$35. The score of hygiene knowledge or hygiene practices were higher in the group who graduated front middle or high school than the group who had MS degree, because they might have the good hygiene habit or behavior from the continuous education about the food hygiene.

• 한국경영과학회지
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• 제25권4호
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• pp.81-95
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• 2000

A knowledge-based system with fuzzy production rules is a representation of static knowledge of an expert. On the other hand, a real system such as the stock market is dynamic in nature. Therefore we need a strategy to reflect the dynamic nature of real system when we make inferences with a knowledge-based system. This paper proposes a strategy of dynamic inferencing for a knowledge-based system with fuzzy production rules. The strategy suggested in this paper applies weights of attributes of conditions of a rule in the knowledge-base. A degree of match(DM) between actual input information and a condition of a rule is represented by a value [0,1]. Weights of relative importance of attributes in a rule are obtained by AHP(Analytic Hierarcy Process) method. Then these weights are applied as exponents for the DM, and the DMs in a rule are combined, with MIN operator, into a single DM for the rule. In this way, overall DM for a rule changes depending on the importance of attributes of the rule. As a result, the dynamic nature of a real system can be incorporated in an inference with fuzzy production rules.

• 아동학회지
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• 제36권3호
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• pp.93-113
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• 2015

The purpose of this study was to explore the currents status of exposure to internet pornography on the part of elementary students and to analyze the impact upon levels of sexual knowledge or sexual attitudes in such children. The participants in this study comprised 536 6th grade elementary school students. The data was analyzed by means of T-tests, F-tests, Pearson's correlation and regression analysis. The results were as follows. First, 32.5% of the subjects had experienced some degree of exposure to internet pornography. Second, sexual attitudes and sexual knowledge were found to be higher in accordance with the general characteristics exhibited by the girls, these same sexual attitudes and sexual knowledge amongst girls were observed to be even higher when they were exposed to internet pornography. Third, the characteristics of this exposure to internet pornography did not significantly impact on levels of sex knowledge. However, the characteristics of exposure to internet pornography did significantly impact upon sexual attitudes. In particular, gender permissiveness, attitudes regarding pornography, and attitudes towards physical contact did have a significant impact.

• 대한간호학회지
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• 제46권1호
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• pp.50-58
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• 2016

Purpose: The purpose of this study was to identify the knowledge structure of cancer survivors. Methods: For data, 1099 articles were collected, with 365 keywords as a Noun phrase extracted from the articles and standardized for analyzing. Co-occurrence matrix were generated via a cosine similarity measure, and then the network analysis and visualization using PFNet and NodeXL were applied to visualize intellectual interchanges among keywords. Results: According to the result of the content analysis and the cluster analysis of author keywords from cancer survivors articles, keywords such as 'quality of life', 'breast neoplasms', 'cancer survivors', 'neoplasms', 'exercise' had a high degree centrality. The 9 most important research topics concerning cancer survivors were 'cancer-related symptoms and nursing', 'cancer treatment-related issues', 'late effects', 'psychosocial issues', 'healthy living managements', 'social supports', 'palliative cares', 'research methodology', and 'research participants'. Conclusion: Through this study, the knowledge structure of cancer survivors was identified. The 9 topics identified in this study can provide useful research direction for the development of nursing in cancer survivor research areas. The Network analysis used in this study will be useful for identifying the knowledge structure and identifying general views and current cancer survivor research trends.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2001년도 추계학술대회 학술발표 논문집
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• pp.208-212
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• 2001

본 논문은 무한 지식베이스에 가까운 웹으로부터 추출된 지식의 최적화 관리에 관한 것이다. 비록 웹 문서로부터 사실이나 규칙과 같은 유용한 지식을 추출했다 하더라도 일반화되지 않은 지식을 포함하고 있으므로 이를 적절하게 제거함으로서 지식베이스가 일반화된 지식만을 포함하도록 관리해야 할 필요가 있다 이를 위하여 본 논문에서는 인간의 망각에 기반한 기억방식을 응용한 망각에 의한 기억알고리즘을 제안한다. 본 논문에서는 기억을 관심도, 망각정도와 시간의 함수로 가정한다. 즉, 관심 있는 지식을 더 잘 기억하고, 잘 망각할수록 그리고 기억된 지 오래될 수륵 기억은 지수함수 적으로 감소한다. 여기서, 망각이란 이전의 기억정도, 기억능력 그리고 자극횟수의 함수로서, 이전에 기억된 정도가 크고, 기억능력이 크고, 자주 자극 받을수록 그 지식은 덜 망각하게 된다.

• 성인간호학회지
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• 제13권3호
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• pp.476-485
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• 2001

The purpose of this study was to identify the effect of structured information provided on knowledge and self-care behavior. The subjects of this study were both hospitalized patients and outpatients in K university hospital. The instrument use for this study were the knowledge assessment tool and self-care behavior assessment tool by Eom Soon-Ja(1998) and they were modified for liver cirrhosis patients. The data were analyzed by t-test, Chi-square test, Pearson correlation coefficients using SAS program. The results of this study were as follows. The experimental group which had received structured information provided showed greater increased knowledge of liver cirrhosis(P=.001). The experimental group which had received the structured information provided indicated increased self-care performance rate, especially after information about diet(P=.001), activity and bed rest(P=.001), drug therapy and visiting the hospital(P=.001), prevention of a complication and observation(P=.001). In conclusion, structured information provided showed increased in the degree of knowledge and self-care behavior, so information showing is an effective nursing intervention. It is much needed to employ information showing for chronic patients.