• Journal of the Korea Society of Computer and Information
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• v.24 no.11
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• pp.195-200
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• 2019

The purpose of this paper is to explore security guard's status and roles in society through media reports. Research method is to anlyze security Guard's 'Keyword Trend' and 'Keyword Frequency Analysis' by 'Big Kind' which enables 'News Big Data' analysis. The result came out by the analysis in sectional private security guard's history of settling down, growing up (quantity), and growing up (quality) by separating generations is that there are lots of attention and exposure from media about crime, security guard job, minimum wage, and 'Gabjil', but the images of security guard are recognized as victim of crime and 'Gabjil', and working in poor environment with minimum waged and ambiguous job, instead of people preventing crimes. In the future, stabilizing security guard's social status and work responsibility, and developing job professionalism are necessary to improve the images of security guard.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.101-109
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• 2019

With the rapid development of China's economy, the consumption concept of Chinese consumers has changed, and the purchase intention of consumers is also affected by the origin of the brand. The purpose of this study is to help local enterprises gain more competitive advantages in international marketing activities by improving the image of the country of origin. Based on the theory of clue utilization, this paper constructs a theoretical model of the effect of the image of origin on consumers' purchase intention and puts forward the basic hypothesis. The data were collected, analyzed and processed through questionnaire survey and spss23.0. The results showed that: the image of the place of origin and the perceived value had a significant impact on the purchase intention. The image of origin has significant influence on perceived value. Finally, combined with the empirical research results, relevant marketing strategies and Suggestions are provided for local enterprises. At the same time, it also provides some reference for other countries to sell in China.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.231-231
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• 2019

수문자료는 수문과정을 이해하고 그 특성을 파악하여 장래 예견되는 자연재해로부터 인간의 생명과 재산을 보호하는데 있어서 매우 중요하다. 특히 수자원 계획 수립 및 대규모 수공구조물 설계 시 수문학적 설계기준이 되는 강수량 및 유출량과 같은 설계 수문량을 정확하게 산정하기 위해서는 장기간의 과거자료가 필요하다. 그러나 한국의 경우 수문자료 관측을 위한 관측소가 대부분 근래에 설치되어 자료의 기록기간이 짧은 실정이며, 수문자료의 질적인 면에서의 신뢰성이 의심되는 경우가 많아 수문 시계열 자료의 특성을 파악하는 것이 더욱 중요하다. 한국의 경우 수문 시계열 자료가 정상성이나 독립성을 지니고 있다고 가정하고 수문분석을 실시하는 경우가 많기 때문에 정상성을 가정한 수문분석으로 인해 왜곡된 결과를 얻을 수 있는 가능성이 있다. 본 논문에서는 한국의 기상청 63개의 기상관측소 중 45년 이상의 장기간의 관측 자료를 가지고 있는 37개의 기상관측소의 연강수량 자료를 대상으로 Data Screening 방법을 이용하여 정상성 분석을 실시하였다. 분석결과 37개소의 기상관측소 연 강수량의 시계열 자료 중 4개 관측소의 연강수량 자료에서 경향성을 보였으며 평균과 분산의 시간변동성을 의미하는 안정성은 22개 관측소 연강수량 자료에서 불안정성을 나타내었다. 또한 4개 관측소 연강수량 자료에서 지속성을 나타내었다. 본 논문에서는 경향성이 없고 평균과 분산의 안정성이 존재하며 지속성을 보이지 않는다는 조건을 동시에 만족하는 연 강수량 시계열 자료만을 정상성이 있다고 판단하였으며 분석 결과, 37개 관측소 중 23개 관측소(약 62%) 연 강수량자료가 비정상성을 나타냄을 확인할 수 있다.

• Journal of the Korea Society of Computer and Information
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• v.11 no.3
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• pp.87-96
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• 2006

Most conventional database systems support specific queries that are concerned only with data that match a query qualification precisely. A cooperative query answering supports query analysis, query relaxation and provides approximate answers as well as exact answers. The key problem in the cooperative answering is how to provide an approximate functionality for alphanumeric as well as categorical queries. In this paper, we propose a metricized knowledge abstraction hierarchy that supports multi-level data abstraction hierarchy and distance metric among data values. In order to facilitate the query relaxation, a knowledge representation framework has been adopted, which accommodates semantic relationships or distance metrics to represent similarities among data values. The numeric domains also compatibly incorporated in the knowledge abstraction hierarchy by calculating the distance between target record and neighbor records.

• Journal of the Korea Society of Computer and Information
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• v.25 no.4
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• pp.63-70
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• 2020

In this paper, we propose a globally successful animation rhythm type. Based on the study of spatial variables in Campbell's heroic narrative and the study on the duration of shots in the video, the rhythm of the shot according to the spatial narrative of was analyzed. Through this, three conclusions were drawn. First, the basis for the visualization of narrative intensity is possible through the shot density of narrative, Second, a shot rhythm type was presented, which was presented as an ascending type, a descending type, a mountain type, a depressed type, and a complex type, and the characteristics of the narrative were analyzed. Third, the strength of the shot rhythm shown in the hero narrative spatial map model was divided into top, middle, and bottom, and the measurement criteria of narrative strength were presented. This study is meaningful in that it visualized and typified artistic emotions as objective data in the flow of animation content focused on philosophical and qualitative methods.

• Journal of the Korea Convergence Society
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• v.12 no.12
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• pp.65-74
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• 2021

Recently, studies on Korean spelling correction have been actively conducted based on machine translation and automatic noise generation. These methods generate noise and use as train and data set. This has limitation in that it is difficult to accurately measure performance because it is unlikely that noise other than the noise used for learning is included in the test set In addition, there is no practical error type standard, so the type of error used in each study is different, making qualitative analysis difficult. This paper proposes new 'error type classification' for deep learning-based Korean spelling correction research, and error analysis perform on existing commercialized Korean spelling correctors (System A, B, C). As a result of analysis, it was found the three correction systems did not perform well in correcting other error types presented in this paper other than spacing, and hardly recognized errors in word order or tense.

• Journal of Science Education
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• v.45 no.2
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• pp.201-218
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• 2021

The purpose of this study is to investigate qualitatively two cases of general citizens' scientific participation and activities responding to fine dust problem. The processes of their scientific actions were investigated and categorized inductively based on three stages: problem recognition stage, information collection and analysis stage, and sharing and spreading stage. As a result, in the 'problem recognition' stage, two participants recognized the seriousness of the fine dust problem as they felt a threat to their health and began to act practically by questioning the accuracy of public data. In the 'information collection and analysis' stage, a participant collected as much information as possible and compared them in order to obtain more accurate information for her situation. On the other hand, another participant conducted various experiments in person to get the information which is appropriate to his situation. Finally, in the 'Sharing and Spreading' stage, both participants created and shared various materials based on online environment, and continued their activities with a sense of contribution through others assistance. Educational implications are discussed in terms of civic science education and scientific literacy.

• Journal of the Korea Convergence Society
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• v.10 no.2
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• pp.269-276
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• 2019

The purpose of this study was to investigate the publication trends of children and adolescents' smoking-related researches published in Korean academic journals. Three hundred fifty papers published until 2018 were analyzed by focusing on the publication year, research participants, research themes and research methods. As a result, smoking-related research on children and adolescents increased sharply from 1995 to 2000, and the trend continued. The main research participants were general children and adolescents and the most frequently studied themes were 'Associated Factors,' 'Intervention,' 'Prevalence,' 'Prevention,' 'Characteristics,' 'Law and Policies,' 'Scales,' 'Review and Theories' respectively. The most frequently used research method was the quantitative method. Moreover, the most common data gathering method was using questionnaires, and the number of papers which used panel data was gradually increasing. Future studies were suggested to explore a broader range of themes, and a balanced research approach was also recommended using both qualitative and mixed methods.

• Journal of the Korea Convergence Society
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• v.10 no.7
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• pp.251-260
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• 2019

This study aimed to examine the associations between family economic status, social relationships, and the career identity of adolescents. The study assessed the mediating effects of social relationships on the relationship between economic status and the career identity of adolescents, utilizing data from the Korean Children and Youth Panel Survey (KCYPS). The result indicated that family economic status was related to the quality of the social relationships that significantly affected the career identity of adolescents. These findings suggested that the inequality in career development of adolescents due to family economic status could be reduced by promoting positive social relationships. Convergent interventions that help adolescents to build positive social relationships would be necessary to improve the career outcomes of those from low-income families.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.3
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• pp.1-11
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• 2019

Based on the knowledge spillover theory of entrepreneurship(KSTE) and resource based view(RBV), this study examines that how patent based entrepreneurship impacts on improving key performances such as financing, firm innovation, sales, product selling growth, employment. This study which is conducted with data from 353 startup firms indicates that patent based entrepreneurship has positive effects on performance of financing, innovation, product selling growth, and employment. On the other hand, there is no effect of patent-based entrepreneurship on sales performance. This statistical results were the same The results were the same when the independent variables were measured as intensity of patent based entrepreneurship which indicates the rate of patent based product or service among total number of product or service of the startup company.