• The Korean Journal of Applied Statistics
• /
• v.19 no.2
• /
• pp.305-317
• /
• 2006

Outliers adversely affect model identification, parameter estimation, and forecast in time series data. In particular, when outliers consist of a patch of additive outliers, the current outlier detection procedures suffer from the masking and swamping effects which make them inefficient. In this paper, we propose new outlier detection procedure based on high breakdown estimators, called as the dual robust filtering. Empirical and simulation studies in the autoregressive model with orders p show that the proposed procedure is effective.

• The Korean Journal of Applied Statistics
• /
• v.29 no.4
• /
• pp.699-706
• /
• 2016

Outlier detection methods without performing a test often do not succeed in detecting multiple outliers because they are structurally vulnerable to a masking effect or a swamping effect. This paper considers testing procedures supplemented to a clustering-based method of identifying the group with a minority of the observations as outliers. One of general steps is performing a variety of t-test on individual outlier-candidates. This paper proposes a sequential procedure for searching for outliers by changing cutoff values on a cluster tree and performing a test on a set of outlier-candidates. The proposed method is illustrated and compared to existing methods by an example and Monte Carlo studies.

• Cross-Cultural Studies
• /
• v.41
• /
• pp.199-227
• /
• 2015

In the twenty-first century, one of the most controversial issues concerns neoliberal policies and its results. In particular, since the mid-1980s, the United States and international financial institutions have imposed their programs on Latin American countries. The result is a deepening social inequality in Latin America that puts an emphasis on financial stability instead of social security. Consequently, social inequality is worsened and an imbalance in income distribution took place. Because of the flexibility of labor, the middle class is destroyed. For the poor person deprived of the opportunity to rise, violence is a common occurrence in daily life. Thus, in this context, Eduardo Galeano raises the necessity of a critique concerning the values that neoliberalism regards as important. Furthermore, Galeano is also wary of the "militarization of neoliberalism." This is because the neoliberal multinationals motivate a war without borders under the guise of peace. Neo-liberal policies also contribute to environmental pollution. However, environmental vandalism, which happens in partnership with large and international organizations, is not readily apparent to the public because those perpetrators wore a "green mask." Hence, Galeano assiduously endeavors to undercover the false consciousness hiding behind the green mask. Thus, in brief summary, Galeano represents in his works a depiction about Latin America where violence often happens in daily life.

• The Korean Journal of Applied Statistics
• /
• v.28 no.6
• /
• pp.1275-1288
• /
• 2015

A microscale weather analysis module (about 1km or less) is a microscale numerical weather prediction model designed for operational forecasting and atmospheric research needs such as radiant energy, thermal energy, and humidity. The accuracy of the module is directly related to the usefulness and quality of real-time microscale weather information service in the metropolitan area. This paper suggests an object based verification method useful for spatio-temporal evaluation of the accuracy of the microscale weather analysis module. The method is a graphical method comprised of three steps that constructs a lattice field of evaluation statistics, merges and identifies objects, and evaluates the accuracy of the module. We develop lattice fields using various evaluation spatio-temporal statistics as well as an efficient object identification algorithm that conducts convolution, masking, and merging operations to the lattice fields. A real data application demonstrates the utility of the verification method.

• The Korean Journal of Applied Statistics
• /
• v.24 no.3
• /
• pp.455-464
• /
• 2011

Overseas direct investment is constantly on the rise, while domestic investment has been slowing and has led to concerns that the expansion of overseas investment may be weakening domestic investment. Considering the change of environment as economic growth, this paper analyzes the relationship between domestic and overseas investment using a regression tree. The result shows that overseas investment substituted domestic investment in the past (before 1985); however, they compensated for each other during the rapid growth period based on exports (1986-1997). The relationship turns out to be insignificant after the Asian currency crisis(after 1998). In addition, this paper also examines the factors determining domestic facilities investment and overseas direct investment at each stage of the changes in their influence due to globalization. Taking into account the results, we need to re-evaluate the current pattern of corporate investment apart from the past restricted point of view to help domestic enterprises efficiently utilize the international production network and resources.

• The Journal of the Convergence on Culture Technology
• /
• v.4 no.4
• /
• pp.201-206
• /
• 2018

The fourth fiscal estimate of the national pension following the aging of the population and falling yields estimated that the fund ran out in 2057, three years earlier than the third fiscal calculation. Accordingly, the government proposed a plan to immediately raise the insurance premium rate by 2 percent and maintain the income replacement rate by 45 percent, and to reduce the income replacement rate by 40 percent in 2028. In this form, increasing premiums and reducing income replacement rates will allow younger generations to sign up differently from existing subscribers, who previously had higher income replacement rates at lower rates. Therefore, the study aims to ease the burden on the elderly and younger by applying different insurance rates and income replacement rates for different ages.

• Journal of Digital Convergence
• /
• v.18 no.12
• /
• pp.549-563
• /
• 2020

Based on Deleuze's body aesthetics and from the perspective of 'deterritoraliazation', this study makes an in-depth discussion on the modern fashion design modeling by four visual characteristics: hysteria, visualization, body segmentation and becoming animals. First, hysteria embodies the strong visual effect brought by the deformation and exaggeration of clothing. Second, visualization in fashion shows the elimination or ambiguity of faces, representing the weakening of identity and the prominence of clothing and body. Third, body segmentation represents the deconstruction and reorganization of clothing, and a new way of thinking, as well. Fourth, becoming-animals are manifested in the physical mutation caused by the heterogeneous connection between humans and animals, which brings about the possibility of rethinking the body.

• Journal of the Korean Society of Food Culture
• /
• v.6 no.3
• /
• pp.257-264
• /
• 1991

A study on the foods of annual custom in Cheongju area was done to know the present practices and compare with Dongkooksesiki (동국세시기(東國歲時記)), Youlyangsesiki (열양세시기(洌陽歲時記)), Kyoungdojabji (경도잡지(京都雜誌)), and the results of a study on the gala foods in Kangweon province. Those annual custom which are celebrated in Cheongju area are Seolnal (New Year's Day) (100%), Chuseok (Harvest Moon Day) (100%), Daeboreum (the 15th of January) (92.6%), Dongji (the winter solstice) (75.2%), and Sambok (the period of summer heat) (67.4%) in the order of higher percentages. No subjects for this survey are keeping on celebrating Junghwa (servants day), Jungwon (the 15th day of the 7th lunar month), and Nabpyoung. Foods of annual custom on Chuseok and Seolnal had a greater variety, compared with those enjoyed on other annual custom. Foods of annual custom such as Ddugguk, Mandoo on Seolnal, Ogokbab, Mugeunnamul, and Buryum on Daeboreum, Songpyun on Chuseok, Patjuk on Dongji were being enjoyed by most people. But the other foods of annual custom are enjoyed in a lower percentage or almost forgotten.

• Journal of Korea Society of Industrial Information Systems
• /
• v.13 no.4
• /
• pp.24-34
• /
• 2008

The study aims to anticipate evolution direction of mobile content business in the future, and derive successful strategies at the same time with multiple and composite analysis of evolution process and environmental change of mobile business. In conclusion, Firstly, it should strengthen customer approach performance, secondly, approaches with sensitively, and needs opened business model. Fourthly, it needs planning and production of contents which reflects the need of customers, and fifthly, it requires development of mobile platform leading contents group and multiplication of CP business model. In the aspect of industrial policy, sustainable and future-oriented policy should be arranged rather than short-term and simple police, for the continual development of mobile content industry. To establish healthy and active mobile contents industry, the government and regulatory institutes are more preferable to devote to the role of circumstance builder rather than the leader of mobile content market. In other words, they are recommended to focus on establishing basic regulation and order for smooth operation of the market and its management.

• Korean Journal of Social Welfare Studies
• /
• v.43 no.1
• /
• pp.179-202
• /
• 2012

This study is a life history study of the elderly of overseas chinese. The aim of study is to explain the acculturation of identity and attitude to korean and the experience of discrimination through of the work of reconstruction of life history. We approached narrative - life history analyze. The life history data were collected by in - depth interview. The authors analysed the text according to Rosenthal(2008). In first stage we recomposed narrative life history and finally we composed experienced life history. The result as follows. The hero of this study have lived wearing korean mask for survival in the land of emergency landing but he lived severely dreaming come home in glory. The life of hero of this study represented forfeit of identity. He couldn't root in korea, Taiwan and China.