• 한국콘텐츠학회논문지
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• 제22권2호
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• pp.545-558
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• 2022

본 연구의 목적은 전통적인 통계과 기계학습(Machine Learning)을 통해 중국 문화산업 기업의 재무적 곤경을 정확하게 예측하는 분석 모형을 탐색하는 데 있다. 예측모형을 구축하기 위하여 중국 128개 문화산업상장 기업의 데이터를 수집하였다. 25개 설명변수로 이뤄진 데이터베이스를 토대로 판별분석과 로지스틱 회귀(Logistic) 등 전통적인 통계 방법과 서포트 벡터 기계(SVM), 결정 트리(Decision Tree)와 랜덤 포레스트(Random Forest) 등 기계학습을 이용한 예측모형을 구축하고 각 모형의 성능 평가를 위해 Python 소프트웨어를 사용한다. 분석 결과, 예측 성능이 가장 좋은 모형은 랜덤 포레스트(Random Forest) 모형으로 95%의 정확도를 보였다. 그 다음은 서포트 벡터 기계(SVM) 모형으로 93%의 정확도를 보였다. 그 다음은 결정 트리(Decision Tree) 모형으로 92%의 정확도를 보였다. 그 다음은 판정분석 모형으로 89%의 정확도를 보였다. 예측 효과가 가장 낮은 모형은 로지스틱 회귀(Logistic) 모형으로 88%의 정확도를 보였다. 이는 중국 문화산업 기업의 재무적 곤경을 예측하면서 기계학습 모형이 전통적인 통계 모형보다 더 좋은 예측 효과를 얻을 수 있음을 설명한다.

• 한국산업정보학회논문지
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• 제17권4호
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• pp.99-114
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• 2012

국내 저축은행들은 다양한 원인으로 인해 오늘날 많은 어려움에 직면하고 있다. 이러한 어려움을 극복하기 위해서 저축은행들은 다양하고 전문적인 서비스를 요구하는 고객들을 만족시켜야 한다. 이를 위해 저축은행들은 고객 지향적으로 변해야 하고 고객 관리 관리를 체계적으로 하여야 한다. 이러한 인식하에 본 연구는 서비스 품질을 상호작용 품질, 결과 품질, 물리적 환경 품질의 3차원으로 분류하여 이들이 서비스 성과인 고객 만족, 고객 신뢰, 재거래 의도에 어떠한 영향을 주는지 조사하였다. 또한, 금리 민감도와 은행 명성이 서비스 품질과 서비스 성과 사이에 조절효과가 있는지도 살펴보았다. 본 연구의 결과는 금융 산업의 종사자와 연구자들에게 저축은행들의 경쟁력 확보를 위한 시사점과 가이드라인을 제공할 것이다.

• Asian Pacific Journal of Cancer Prevention
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• 제17권9호
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• pp.4445-4450
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• 2016

Background: This study explored perspectives of health-care providers on childhood cancer treatment in Kenya. Materials and Methods: A self-administered questionnaire was completed by 104 health-care providers in January and February 2013. Results: Seventy six percent of the health-care providers believed cancer to be curable. More doctors than other health-care providers had this positive opinion (p=0.037). The majority of health-care providers (92%) believed that most children with cancer will not be able to finish their treatment due to financial difficulties. They considered that prosperous highly-educated parents adhere better with treatment (88%) and that doctors adhere better with treatment for prosperous highly-educated parents (79%). According to 74% of health-care providers, quality of care is better for prosperous highly-educated parents (74%). Most health-care providers reported giving more explanation (71%), work with greater accuracy (70%) and use less difficult vocabulary (55%) to prosperous more educated families. Only 34% of health-care providers reported they feel more empathy towards patients from prosperous families. Reasons for non-adherence with the protocol according to health-care providers are: family refuses drugs (85%), inadequate supply of drugs at pharmacy (79%), child looks ill (75%), and financial difficulties of parents (69%). Conclusions: Health-care providers' health beliefs and attitudes differ for patients with families having high versus low socio-economic backgrounds.

• 문화기술의 융합
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• 제7권2호
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• pp.239-246
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• 2021

통일은 북한이 유지했던 계획경제 체계를 포기하고 시장경제 체제로 바꾸는 것으로 수십 년 동안 계획경제 체제 하에서 살았던 북한 주민들에게는 큰 혼란과 어려움을 야기할 것이다. 이를 위해 최근 공감대를 얻고 있는 행태경제학(Behavioral Economics)의 관점을 반영할 필요가 있다. 구체적으로 선정한 교육내용은 ① 금융 전반(금융내역기록하기, 인플레이션의 영향, 현대 금융투자시장에서 상품 선택의 물리적 어려움, 금융투자자의 제한적 합리성 등) ② 대출(개인 신용 관리, 금융권별 대출금리 차이 등) ③ 금융투자(비용이 수익률에 미치는 영향, 복리와 단리의 차이, 기대수익과 위험의 상관관계, 투자위험 유형, 분산투자의 중요성, 적극적 투자와 소극적 투자 등)이다. 다만, 각 내용의 깊이와 넓이는 북한 주민들이 직관적으로 이해할 수 있는 최소한도로 한다. 이러한 직관적이고 기본적인 금융교육을 통해 필수적인 금융지식을 갖춘 다음 구체적인 금융의사결정은 독립투자자문업자(Independent Financial Adviser, IFA)와 상의(자문)받도록 하는 것이 바람직하다. 즉, 최소한의 경제·금융지식을 갖추는데 필요한 직관적인 내용으로 국한하고 의사결정은 IFA를 활용하는 것이 합리적임을 교육하는 것이다. 이러한 '직관적 기본 금융 교육 + 독립투자자문업자(IFA)' 결합 모형은 통일후 북한 주민을 대상으로 하는 경제금융교육에 소요되는 시간과 노력을 크게 줄이면서 효과를 극대화할 수 있을 것이다.

• 한국통신학회논문지
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• 제42권2호
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• pp.307-315
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• 2017

암호시스템에서 난수발생기는 필수적인 요소이다. 최근에 IoT, Sensor Network, SmartHome와 같은 소형 디바이스를 사용하는 환경이 등장하면서, 이에 적합한 다양한 경량 암호들이 개발되고 있다. 하지만 리소스 제한, 엔트로피 수집의 어려움 등의 문제로 인하여, 기존의 데스크 탑에 초점을 두고 만들어진 난수발생기가 제대로 동작하는 것이 어려워지고 있다. 본 논문에서 경량 환경에서 안전한 난수를 생성하는 방법으로 경량 난수발생기 설계를 소개한다. 구조는 헨켈 매트릭스와 블록암호를 사용하고 잡음원으로 센서를 사용한다. 또한 소형 디바이스 중에서 가장 대표적인 Arduino보드에 설계한 경량 난수발생기를 구현하고, 구현 결과로 센서 데이터와 최종 출력 난수의 엔트로피 값을 측정하고 평가함으로써 효율성과 안전성을 확인한다.

• 가정과삶의질연구
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• 제20권6호
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• pp.151-162
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• 2002

The instability in the current financial market caused consumers a lot of difficulties in their financial decision making. The purpose of this study is to classify the changes in household portfolios during the economic crisis under IMF-trusteeship (IMF Crisis hereafter), and to examine the characteristics of the households according to the types of household portfolio changes. The data were taken from 1996 and 1999 Korean Household Panel Studies, and 1,293 households were selected for the final analysis. Methods of analysis included frequencies, percentages, Chi-square tests, F-tests, and t-tests. Major findings are as follows: 1. In the midst of the financial market changes during the period of the IMF crisis, consumers tended to manage their household portfolio differently according to their household characteristics. 2. The changes of household portfolio can be classified into two different types: the changed type (44.4%) and the unchanged type(55.6%). There are significant differences in the level of wealth, family life cycle stage, housing tenure, and the household head's job, between the changed type and the unchanged type. The family members of the unchanged type are more likely to be older and relatively wealthy compared with the families in the changed type. 3. The changes of household portfolio can be further classified into six different types: the unchanged-liquidity type (21%), the unchanged-multiplication type (24.6%), the unchanged-insurance type (9.8%), the changed-to-liquidity type (13.9%), the changed-to-multiplication type (13.0%), and the changed-to-insurance type (17.5%). There are significant differences in income level, wealth level, family life cycle stage, housing tenure, and the job of household head among the six types of changes.

• 수산경영론집
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• 제15권1호
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• pp.81-95
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• 1984

The international marine system was plunged into the age of divided occupation with the adoption of the United Nations Convention on Law of the Sea in April, 1982. The exclusive economic zone of 200 Nautical miles set up by the Convention confirms the assertions of many coastal states whose fishing industries are not well-developed. However, it is unfavorable to the countries whose fisheries are being carried on in deep-sea, because the coastal state has sovereign rights to conserve and manage living resources in it. Under the circumstances the Korean deep-sea fisheries had to find ways out of the difficulties. The ways may be divided into two ways, namely, licensed fishing and joint-venture fishing. The former type becomes unfavorable to foveign fisheries because of decreasing quarts, rising fees and remunerations. The latter type properly meets the wishes of countries concerned and has some merits. However, there is a possibility of bearing the risk in case of investment in developing countries. The insurance system is effective to make up for the loss from the risk, although not perfect. The deep-sea fisheries depressed now by accumulated difficulties need more financial support from the Goverment for the active promotion of overseas joint-venture.

• 한국생활과학회지
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• 제16권1호
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• pp.61-73
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• 2007

This study looks into their process to wedding for Vietnamese brides and the motives of their marriage of whom are living in rural areas near an urban city, and the difficulties of their living in Korea. The mist significant motive of their marriage for the Vietnamese brides if financial reasons. They also think that Korean men are well-off and reliable and that the men's occupations or the age are any matter to be considered. As for the Korean men married to Vietnamese brides, the mist significant motive of their marriage is that Vietnamese brides are considered to be good-natured hardworking, sincere and respectful of the elderly. The wedding process usually takes place in 5-6 days through matchmaking, and the background of their Korean man gets inflated by their matchmaking agency. Some of the most significant difficulties for their life in Korea are due to the language barrier, their husbands' incompetence for a living, conceptions before the young brides get adjusted to Korean living. Most significant support networks are their husbands/families, and their neighbors, relatives and friends that can share Korean cultures and Vietnamese cultures with them. At last, the local communities should continuously offer them educational opportunities for Korean language and social/ cultural understanding.

• 부모자녀건강학회지
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• 제14권1호
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• pp.36-44
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• 2011

Purpose: This study was conducted to explore foreign immigrant mothers' experiences of pregnancy, childbirth, and child rearing. Methods: Ten married female migrants were selected by a purposive and snowball sampling method. Data were collected during the period from September to November, 2009 by individual in-depth interviews and all interviews were audio-taped and transcribed verbatim. Results: Ten categories were induced: In pregnancy and childbirth domain, social support-request help to their own parents, social support-depending on husband and mother's in law, Enduring emesis-gravidarum in strange environment were extracted. In Chid-rearing domain, child-rearing overburden, lack of self-confidence on maternal role, child-rearing difficulties due to language barrier, lack of information and education on child-rearing, lack of accessibility to public health care services, expectation of child's assimilation in Korea, financial strain in child-rearing. Conclusion: This study provides basic knowledge regarding married female migrants' experiences related to pregnancy, childbirth, and child rearing. The findings of the study will help health professionals designing effective interventions for married female migrants with difficulties related to child care, parenting, rearing.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2003년도 춘계학술대회
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• pp.338-346
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• 2003

Information Technology (IT) and the internet have been major drivers the changes in all aspects of the business processes and activities. They have brought major changes to the financial statements audit environment as well, which in turn has required modifications in audit procedures. There exist, however, certain difficulties with current audit procedures especially for the assessment of the level of control risk. This assessment is primarily based on the auditors' professional judgment and experiences, not based on the objective hies or criteria. To overcome these difficulties, this paper proposes a prototype decision support model named CRAS-CBR using case based reasoning (CBR) to support auditors in making their professional judgment on the assessment of the level of control risk of the general accounting system in the manufacturing industry. To validate the performance, we compare our proposed model with benchmark performances in terms of classification accuracy for the level of control risk. Our experimental results showed CRAS-CBR outperforms a statistical model (MDA) and staff auditor performance in average hit ratio.