• Journal of Convergence for Information Technology
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• v.7 no.6
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• pp.219-227
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• 2017

This study tries to understand the way they express their anger and how it affects the satisfaction of life. This study was conducted to survey people who use forest recreational resources among adults living in Seoul and Gyeonggi area. The survey period is from July 20, 2017 to August 31, 2017. The survey was conducted after the researcher visited the site and gave sufficient explanation about the purpose of the research and confidentiality. Sampling method was used as a Convenience Sampling Method. 450 parts were distributed to recreation resource group users and 378 parts were collected. Finally, 350 parts were utilized in this study and analyzed. As a result of the research analysis, the higher the expression of negative anger, the lower the satisfaction of life and the positive expression of anger could increase the satisfaction of life. Physiological depression was found to play a mediating role. This is statistically significant.

• Journal of Intelligence and Information Systems
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• v.17 no.3
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• pp.25-41
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• 2011

Recently, support vector machines (SVMs) are being recognized as competitive tools as compared with other data mining techniques for solving pattern recognition or classification decision problems. Furthermore, many researches, in particular, have proved them more powerful than traditional artificial neural networks (ANNs) (Amendolia et al., 2003; Huang et al., 2004, Huang et al., 2005; Tay and Cao, 2001; Min and Lee, 2005; Shin et al., 2005; Kim, 2003).The classification decision, such as a binary or multi-class decision problem, used by any classifier, i.e. data mining techniques is so cost-sensitive particularly in financial classification problems such as the credit ratings that if the credit ratings are misclassified, a terrible economic loss for investors or financial decision makers may happen. Therefore, it is necessary to convert the outputs of the classifier into wellcalibrated posterior probabilities-based multiclass credit ratings according to the bankruptcy probabilities. However, SVMs basically do not provide such probabilities. So it required to use any method to create the probabilities (Platt, 1999; Drish, 2001). This paper applied AdaBoost algorithm-based support vector machines (SVMs) into a bankruptcy prediction as a binary classification problem for the IT companies in Korea and then performed the multi-class credit ratings of the companies by making a normal distribution shape of posterior bankruptcy probabilities from the loss functions extracted from the SVMs. Our proposed approach also showed that their methods can minimize the misclassification problems by adjusting the credit grade interval ranges on condition that each credit grade for credit loan borrowers has its own credit risk, i.e. bankruptcy probability.

• Journal of Intelligence and Information Systems
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• v.24 no.3
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• pp.157-176
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• 2018

The purpose of this research is to develop a detection model for companies designated as administrative issue in KOSDAQ market using financial data. Administration issue designates the companies with high potential for delisting, which gives them time to overcome the reasons for the delisting under certain restrictions of the Korean stock market. It acts as an alarm to inform investors and market participants of which companies are likely to be delisted and warns them to make safe investments. Despite this importance, there are relatively few studies on administration issues prediction model in comparison with the lots of studies on bankruptcy prediction model. Therefore, this study develops and verifies the detection model of the companies designated as administrative issue using financial data of KOSDAQ companies. In this study, logistic regression and decision tree are proposed as the data mining models for detecting administrative issues. According to the results of the analysis, the logistic regression model predicted the companies designated as administrative issue using three variables - ROE(Earnings before tax), Cash flows/Shareholder's equity, and Asset turnover ratio, and its overall accuracy was 86% for the validation dataset. The decision tree (Classification and Regression Trees, CART) model applied the classification rules using Cash flows/Total assets and ROA(Net income), and the overall accuracy reached 87%. Implications of the financial indictors selected in our logistic regression and decision tree models are as follows. First, ROE(Earnings before tax) in the logistic detection model shows the profit and loss of the business segment that will continue without including the revenue and expenses of the discontinued business. Therefore, the weakening of the variable means that the competitiveness of the core business is weakened. If a large part of the profits is generated from one-off profit, it is very likely that the deterioration of business management is further intensified. As the ROE of a KOSDAQ company decreases significantly, it is highly likely that the company can be delisted. Second, cash flows to shareholder's equity represents that the firm's ability to generate cash flow under the condition that the financial condition of the subsidiary company is excluded. In other words, the weakening of the management capacity of the parent company, excluding the subsidiary's competence, can be a main reason for the increase of the possibility of administrative issue designation. Third, low asset turnover ratio means that current assets and non-current assets are ineffectively used by corporation, or that asset investment by corporation is excessive. If the asset turnover ratio of a KOSDAQ-listed company decreases, it is necessary to examine in detail corporate activities from various perspectives such as weakening sales or increasing or decreasing inventories of company. Cash flow / total assets, a variable selected by the decision tree detection model, is a key indicator of the company's cash condition and its ability to generate cash from operating activities. Cash flow indicates whether a firm can perform its main activities(maintaining its operating ability, repaying debts, paying dividends and making new investments) without relying on external financial resources. Therefore, if the index of the variable is negative(-), it indicates the possibility that a company has serious problems in business activities. If the cash flow from operating activities of a specific company is smaller than the net profit, it means that the net profit has not been cashed, indicating that there is a serious problem in managing the trade receivables and inventory assets of the company. Therefore, it can be understood that as the cash flows / total assets decrease, the probability of administrative issue designation and the probability of delisting are increased. In summary, the logistic regression-based detection model in this study was found to be affected by the company's financial activities including ROE(Earnings before tax). However, decision tree-based detection model predicts the designation based on the cash flows of the company.

• The Journal of the Korean life insurance medical association
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• v.22
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• pp.99-120
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• 2003

그 동안 지속적인 경제성장을 바탕으로 한국의 생명보험산업은 양적으로 성장하였다. 그러나 내면을 살펴보면 외형을 떠받칠 만큼 내실있게 성장했는지에 대해서는 많으 의구심을 갖게 한다. 현실적으로 경제성장을 바탕으로 한 외형성장은 한계를 맞을 수 밖에 없으며, 이제는 질적인 내실을 기하기 위해 그 동안 소홀히 했던 보함산업의 전반의 체질개선이 필요하다. IMF이후 경영이 부실한 보험사들이 퇴출되면서 전면적인 개편이 이루어졌고, 또한 보험사 내부에서도 전반적인 개혁의 필요성을 인식하여 여러 방면으로 방안을 구체화하고 있다. 본 논문은 이러한 상황하에서 생명보험산업의 기존 문제점 개선방안의 일환으로, 보험산업의 가장 핵심분야라 할 수 있는 언더라이팅 분야의 국내현황을 살펴보면서 보험선진국의 제도 및 운영현황과 비교 분석하여 부문별 문제점을 도출하고, 그에 따른 개선방안을 제안하게 되었으며, 본 논문에서 제시된 개선방안을 요약해 보면 다음과 같다. 첫째, 언더라이팅을 신속 정확하게 수행하고 도덕적 위험을 배제하기 위하여 개선된 정보교환시스템 제도를 구축해야 하며, 사정자료의 수집업무를 전문기관에게 아웃소싱함으로써 비용절감을 기하여야 한다. 이와 아울러 모집인의 전문성을 제고시켜 보험계약 청약서와 모집인 보고서가 정확하게 작성되도록 하고 언더라이팅 실적과 연계한 인센티브제도에 의하여 모집수당이 지급되도록 하여 언더라이팅이 효과적으로 수행되도록해야 할 것이다. 둘째, 언더라이팅기법의 선진화를 기함으로써 위험에 상응하는 보험료를 부가하여 위험에 노출되어 있는 가망고객의 보험가입율을 높이고, 보험사고 발생시 실질적인 보험혜택을 누리도록 하여야 한다. 이를 위한 실천방안으로 의적 직업적 재정적 언더라이팅 선진기법을 도입하여 각 부문의 역량을 강화해야 할 것이다. 특히 제도적으로 개인신용정보의 언더라이팅 활용이 제한되어 있는 현실에서 이를 법제도 내로 흡수하면서 개인의 사생활 유지라는 목적을 동시에 달성되도록 하는 재정적 언더라이팅 기법의 강화가 특히 중요하리라 생각된다. 아울러 언더라이팅 업무를 효과적 효율적 수행을 통해 일관성 있는 의사결정이 이루어질 수 있도록 지원하는 언더라이팅 시스템구축을 통해 정형화된 인수과정은 결정시스템화하고, 복잡한 위험의 경우 자문 시스템으로 운영하여 간단한 언더라이팅 업무는 구축된 시스템을 통해 즉각 해결함으로써 시간을 절약할 수 있고, 언더라이팅 인력은 보다 전문적인 부문에 집중하도록 해야 할 것이다. 마지막으로, 비표준위험시장의 활성화를 위해서는 현재의 제약조건인 생명보험 상품개발을 세트형에서 조립형으로 전환하고, 재보험으로 위험을 분산하여 비표준위험의 인수를 증대하여야 할 것이다. 이와 더불어 언더라이팅 과정에서 얻어진 피보험자의 사정자료를 활용하여 고객에게 필요한 의료정보 등을 제공함으로써, 피보험자와 유대관계를 돈독히 하여 기존계약이 계속 유지되도록 하며, 추가계약이 이루어지도록 해야 할 것이다. 이상과 같은 비표준위험의 언더라이팅 개선방안이 보다 효과적으로 수행되고 발전하기 위해서는 통계축적 및 관리, 전문 언더라이터 양성, 전산을 이용한 언더라이팅 확대 등이 이루어져야 하므로 향후 이에 대한 집중적인 연구가 있어야 할 것이다.

• Journal of Korean Society of Forest Science
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• v.106 no.2
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• pp.111-120
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• 2017

The best source of information on the conservation status of species at a global scale is the IUCN Red List of Threatened Species. Until now, 236 vascular plants from Korean peninsula have been evaluated using the IUCN red list categories and criteria. It indicated that five taxa were considered as critically endangered, 20 as endangered and nine as vulnerable species as a threatened status. On the other hand, the rest (189 taxa) were assessed as a least concern, which did not qualify for threatened species categories. Korea Ministry of Environment published a revised version of 57 species list by re-classifying endangered species with idiosyncratic qualitative criteria for two levels (I and II) followed by status reviews in 2011. However, two thirds species proposed by Ministry of Environment do not qualify as threatened. The major difficulties found in applying IUCN Red List criteria at the global scale was a lack of knowledge on the status of species at broader geographic scales and the perceived difficulty the causes. The lack of consistency between two lists constrains the prioritization of species-based conservation work at the national level. Due to a lack of centralized monitoring data for most species, this status is largely qualitatively and so it carries a high level of uncertainty. This is reflected in the high number of species with an unknown population trend. The current list of endangered species of flora and fauna by the Ministry of Environment should be recognized as the national list (local and population extinction), which is different from the IUCN Red list due to the different geographical contexts. Also, it is necessary to improve the quality of evaluation and conservation management system rather than presenting massive number of endangered species list.

• Journal of Internet of Things and Convergence
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• v.8 no.1
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• pp.1-10
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• 2022

The purpose of this study is to establish a foundation for IoT-related industries to secure financial soundness and to dominate the global market after COVID-19. Through this study, the quantitative management status of IoT-related companies was checked. It also was attempted to preemptively prepare for corporate insolvency by examining the relationship between financial ratios in accordance with stock price fluctuations and designation of management items. This study selected 502 companies that were listed on the KOSPI and KOSDAQ in the stock market from 2019 to 2020. For statistical analysis, multiple regression analysis, difference analysis and logistic regression analysis were performed. The research results are as follows. First, it was found that the impact of IoT company accounting information on stock prices differs depending on before and after COVID-19. Second, it was found that there is a difference in the closing stock prices of IoT companies before and after COVID-19. Third, it was found that financial ratios according to stock price fluctuations exist differently after COVID-19. Fourth, it was found that the financial ratios according to the designation of management items after COVID-19 exist differently. Through these studies, some suggestions were made to secure the financial soundness of IoT companies and to lay the groundwork for leaping into the global market after COVID-19. Through the results of this study, it is expected that it will lead the growth of IoT companies and contribute to growth as a decacorn company of the future that can guarantee financial soundness in the changing financial market.

• Journal of Science and Technology Studies
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• v.5 no.1 s.9
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• pp.55-92
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• 2005

The factors contributing to the formation of an important scientific concept in South Korea and its circulation in the society are the scientific knowledge that had been already formed, matured, and established in the U.S.A, Europe and Japan and has been introduced into Korea, and the institutions that have been formed during the recent modernization in South Korea. The concept of 'genetic information' cannot be an exception in this context. The concept of genetic information is the one that has been extended and intensified by the genomics and bioinformatics formed and matured through the Human Genome Projects from the former concept of inheritance or heredity within the framework of classical and molecular genetics. The purpose of this study was to find out 'how the production structure of genetic information in South Korea has been formed', under the perspective of the conceptual, epistemic, and institutional holisticity or integratedness in the concept and knowledge production structure idealized in Western advanced nations. The discourse of genetic engineering popular in the mid 1980's in South Korea has catalyzed the development of molecular biology. However, the institutional balance that had been established for the biochemistry departments in Natural Science College and Medical College was not formed between the genetic engineering and genetics departments in South Korea. Therefore, they were unable to achieve the more integrative and macro-level disciplinary impact on life sciences, largely due to institutional lack of the capable (human) genetics departments in some leading Korean colleges of Medicine. In genomics, the cutting-edge reprogramming and restructuring of the traditional genetics in the West, South Korea has not invested, even meagerly, in the infrastructure, fund, and research and development (R & D) for the Basic or First Phase of the research trajectory in the Human Genome Project. Without a minimal Basic Phase, the genomics research and development in Korea has been running more or less for the Advanced or Second Phase. Bioinformatics has started developing in Korea under a narrow perspective which regards it as a mere sub-discipline of information technology (IT). Having developed itself in parallel with genomics, bioinformatics contains its own unique logics and contents that can be both directly and indirectly connected to the information science and technology. As a result, bioinformatics reveals a defect in respect of being synergistically integrated into genetics and life sciences in Korea. Owing to the structural problem in the production, genetic information appears to be produced in a fragmented pattern in the Korean society since its fundamental base is weak and thin. A good example of the conceptual and institutional fragmentedness is that 'the genetics of individual identification' is not a normal integrated part of the Korean genetics, but a scientific practice exercised in the departments of legal medicine in a few Medical Colleges. And the environment contributing to the production structure of genetic information in South Korea today comprises 'sangmyung gonghak'(or life engineering) discourse and non-governmental organization movement.

• Journal of Korean Ophthalmic Optics Society
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• v.19 no.2
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• pp.171-177
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• 2014

Purpose: The present study was conducted to investigate whether the elution of the dyes from the circle contact lenses existed or not when rubbed with cotton swab. Methods: The change of lens surface was observed by scanning electron microscope when a total of seven kinds of circle contact lens were rubbed with cotton swab, and the dye elution was further compared when the lenses were soaked in multi-purpose solution in $20^{\circ}C$ and $36.5^{\circ}C$ for a week. Results: Five of a total of 7 circle contact lenses showed the dye elution from the front or the back surface of the lens when rubbed with cotton swabs, and existence of dye elution was varied depending on the type of contact lenses and different at the front and back surface even in the same lens. The tear-off of the pigmented portion by the rubbing was found through scanning electron microscopic observation when the dye elution existed. However, the dye was not eluted when the circle contact lenses was soaked in a multi-purpose solution in $20^{\circ}C$ or $36.5^{\circ}C$ for a week. Ingredient of colorant was not provided by the manufacturers in more than 50% of the circle contact lenses investigated for this study and the basic information such as the pigmentation method was provided inappropriately. Conclusions: In this study, the result was the dye elution from circle contact lenses was obtained when a physical force is applied thus, it may appear to contribute the development of circle contact lenses and safety of lens wear.

• Korean Security Journal
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• no.40
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• pp.35-56
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• 2014

The purpose of this study was aimed to identify the relationship between pursuit benefit and behavior by spectators participating security exhibition. The result of study is significant because it may provide more effective and aggressive marketing strategies to the future companies participating security exhibition, and suggest developmental direction by actively responding spectators' needs. The subject for this study was spectators who participating World Security Expo 2014 held three days from March 12 to 14 in 2014. 300 samples were selected by convenience sampling for subject of this study. 283 out of 300 surveys, excluded 17 unfaithful and defected surveys, were used for data analysis. Research tool was questionnaire which was based on and recomposed by previous researches home and abroad. The collected data were treated for analysis of frequency, reliability, factor analysis, correlation, and regression by using SPSS statistic package version of 18.0. Through the above research method and procedure, the results were as followings. First, the relationship between pursuit benefit and behavior after participating exhibition appeared positively. It was found that there was high relationship between pursuit benefit and behavior. Second, analyzing relationship of factors between pursuit benefit and behaviors resulted to effect information exploration, good use of spare time, and product purchase on word of mouth. Third, analyzing relationship of factors between pursuit benefit and behaviors resulted to effect good use of spare time, information exploration, and product purchase on re-participation.

• International Commerce and Information Review
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• v.14 no.1
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• pp.171-195
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• 2012

This paper is aimed to prepare some policy-measures which is helpful for China Money FDI in Korea by analysing FDI-related data and political strength and weakness between the two countries and studying fundamental preconditions required for Korea's China Money FDI strategies. As the result of research, key preconditions found out can be summarized as follows; First, because China-Korea economic relationship is largely insufficient in a complementary view as well as in a cooperative state level, Korea should remove the threats in advance that could lead two countries to unlimited competition, and then expand to a relationship of trust between China and Korea. Second, Korea, at least from the perspective of China, may not be an attractive investment destination. Therefore, it is necessary to take advantage of Korea's FTA-expansion-strategy opportunities such as Korea-US FTA which has entered into force recently. Third, because China always has a lot of alternative investment opportunities among world instead of Korea, so Korea should not overlook the fact that China has the bargaining power in large part related on the investment conditions in Korea, such as investment field, investment size, how to invest China Money to Korea, etc. Fourth, if Korea's FDI policy is trapped in the existing rules of the political frame, and moreover Korea can not have the role of rule breaker, it will be difficult to expect Korea's China Money FDI results compared to those efforts. Fifth, if Korea will execute China Money FDI strategies in the context of overestimating the China Power or China Money, it should be noted that Korea may have unexpected losses lead to a national by reason of outward and quantitative investment or bad investment.