• Journal of Korean Library and Information Science Society
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• v.35 no.2
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• pp.135-154
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• 2004

This study was investigated to the geographical categories and arrangement of library classifications and public organizations in ender to understand the geographical category comprehension and canon from the north-west to south-east in Korean library classification and then to develop a Korean geographical classification system Research method was the examination of different type of library classification (DDC, NDC, LCC) and geographical categorizations of the public organizations. The results show that there was not a principle of categorization and arrangement for geographical information. This study proposes to the three hierarchical structures and radial category arrangement from center-area to side area for developing Km geographical classification.

• Proceedings of the Korean Society for Information Management Conference
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• 2014.08a
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• pp.95-98
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• 2014

본 연구는 지역명 범주에 속하는 용어들의 개념적 특성을 분석하고, 이를 토대로 다른 범주와의 관련도를 파악하여 지역명 범주 용어들을 중심으로 관계 속성들 사이의 논리적 연관성을 부여할 수 있는 모형 도출에 기반이 되는 기초 연구이다. 지역명 범주 용어 중 국가명에 한정하여 분석한 결과, 국가명 개념 속성 중심으로는 계층 구조 관계의 지역명 범주 용어들끼리 연관이 높으며, 전체 범주 용어들의 개념 속성 중심으로는 지역명 범주 용어가 지리적 위치로서의 의미로 주로 쓰이나, 행위의 주체 또는 객체의 의미나 시대의 개념으로도 많이 활용됨을 알 수 있었다. 국가명이 참조되는 개념 속성과 연관되어 활용되는 관계 속성의 경우의 일부는 참조하는 주요 개념 범주와 연관 관계를 토대로 논리적 의미 관계를 생각해볼 수 있는 것으로 나타났다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.64-66
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• 2007

범주화(categorization)은 제품디자인에 있어서 매우 중요하다. 범주화의 유형에 따라 소비자의 감성이 다르고 감성의 차이에 따라 디자인 컨셉 및 디자인요소가 다르게 배합되어야 하기 때문이다. 특히 요즘처럼 제품라인이 확대되어 제품의 차별화가 모호한 경우에는 범주화과정이 필요하다. 즉 감성의 유사성정도를 바탕으로 정확한 범주를 정하고 컨셉화하여 소비자 지향적인 디자인을 제공해야 하는 것이다. 본 연구는 특정의 제품범주(장) 안에 유사한 하위 범주(고추장, 된장, 청국장, 쌈장, 간장)를 구성하고 있는 장류제품전체와 고추장, 된장, 청국장, 쌈장, 간장제품에 대한 소비자의 감성을 추출하고 그 유사성정도를 바탕으로 고추장, 된장, 청국장, 쌈장, 간장의 범주를 결정하여 디자인방향을 어떻게 결정해야 할지를 제시하는데 목적이 있다. 장류제품을 연구대상으로 한 것은 장류제품이 한국인의 식탁에서는 가장 기본적이고 중요한 제품 중의 하나이고 또 현대화시대의 라이프스타일과 환경의 변화로 시장이 확대되고 있기 때문이다. 실증연구는 전북지역과 서울지역의 소비자을 바탕으로 이루어졌다. 본 연구는 학문적 측면과 실무적 측면에서 제품디자인에 대한 다양한 통찰력을 제공할 것이다.

• The KIPS Transactions:PartB
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• v.12B no.4 s.100
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• pp.487-498
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• 2005

Recently, It has focused on decision tree algorithm that can handle large dataset. However, because most of these algorithms for large datasets process data in a batch mode, if new data is added, they have to rebuild the tree from scratch. h more efficient approach to reducing the cost problem of rebuilding is an approach that builds a tree incrementally. Representative algorithms for incremental tree construction methods are BOAT and ITI and most of these algorithms use a local discretization method to handle the numeric data type. However, because a discretization requires sorted numeric data in situation of processing large data sets, a global discretization method that sorts all data only once is more suitable than a local discretization method that sorts in every node. This paper proposes an incremental tree construction method that efficiently rebuilds a tree using a global discretization method to handle the numeric data type. When new data is added, new categories influenced by the data should be recreated, and then the tree structure should be changed in accordance with category changes. This paper proposes a method that extracts sample points and performs discretiration from these sample points to recreate categories efficiently and uses confidence intervals and a tree restructuring method to adjust tree structure to category changes. In this study, an experiment using people database was made to compare the proposed method with the existing one that uses a local discretization.

• Korean Journal of Social Welfare
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• v.52
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• pp.301-324
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• 2003

This study is designed to investigate social worker's experience in community practice at community welfare centers. Especially this study is conducted to identify the question; how do social workers experience community practice? For the study, data is collected from 11 social workers by depth interview. Using the Grounded theory, the data is analysed by open coding, axial coding, and selective coding. Finally the core category is become known that community practice is the piled up process of developmental experience throw willful efforts and various strategies under poor circumstances. The findings are as follows: (1) the experienced social workers seriously consider residents, community, social workers, and community welfare centers as the core participant in community practice. (2) the experienced community practitioners use various strategies on the whole process. (3) a system needs to be built to train community practitioners based on the cooperation of universities and community centers.

• Korean Journal of Agricultural and Forest Meteorology
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• v.8 no.3
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• pp.159-168
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• 2006

In order to screen for the best species for mitigating air pollutants by plants at an industrial complex area, we investigated antioxidant capacity, lipid peroxidation and nitrogen content in the leaves of 27 taxa of woody plants that are mostly utilized as roadside trees. Among 27 taxa, the highest value of antioxidant capacity was given by Cedrus deodara (91.4%) and the lowest one was by Firmiana simplex (56.9%). At lipid peroxidation level, little malondialdehyde (MDA) was observed in Lagerstroemia indica and Ginkgo biloba, but Platanus occidentalis, Castanoposis cuspidata var, sieboldii, Machilus thunbergii and Juniperus chinensis showed high MDA content. Antioxidant capacity of the deciduous woody plants was not significantly different in comparison with that of the evergreen ones. But MDA content of the deciduous woody plants was lower than that of the evergreen ones. The 27 taxa of woody plants appeared to be classified into four types: those of high antioxidant capacity and low lipid peroxidation, those of high antioxidant capacity and high lipid peroxidation, those of low antioxidant capacity and low lipid peroxidation, and those of low antioxidant capacity and high lipid peroxidation. The taxa included in these types are 7 (first type), 6 (second one), 8 (third one) and 6 (fourth one) taxa. first or second type species which have a high antioxidant capacity represented low nitrogen content in their leaves. However, third or forth type species which have low antioxidant capacity showed high nitrogen content in their leaves. Metasequoia glyptostroboides, Platycarya strobilacra and P. occidentalis which belong to the first or second type had extraordinarily high antioxidant capacity and high nitrogen content. Thus, three species are considered to be good phytoremediators for an industrial complex area.

• Spatial Information Research
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• v.19 no.4
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• pp.81-89
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• 2011

This paper presents a multivariate kriging algorithm that integrates categorical data as secondary data for spatial interpolation of sparsely sampled ground survey data. Instead of using constant mean values in each attribute of categorical data, disaggregated local mean values at target grid points are first estimated by area-to-point kriging and then are used as local mean values in simple kriging with local means. This algorithm is illustrated through a case study of spatial interpolation of a geochemical copper element with geological map data. Cross validation results indicates that the presented algorithm leads to significant respective improvement of 15% and 25% in prediction capability, compared with univariate ordinary kriging and conventional simple kriging with constant mean values. It is expected that the multivariate kriging algorithm applied in this study would be effectively applied for spatial interpolation with categorical data.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.1B
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• pp.13-20
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• 2011

The spatio-temporal pattern in precipitation is a significant element in defining characteristics of precipitation. In this study, a new scheme on regionalization utilizing temporal information was introduced on the basis of existing approaches that is mainly based on simple moments of data and geographical information. Given the identified spatio-temporal pattern, this study was extended to characterize regional pattern of annual maximum rainfall over Korea. We have used circular statistics to characterize the temporal distribution on the precipitation, and the circular statistics allow us to effectively assess changes in timing of the extreme rainfall in detail. In this study, a modified K-means method was incorporated with derived temporal characteristics of extreme rainfall in order to better characterize hydrologic pattern for regional frequency analysis. The extreme rainfall was reasonably separated into five categories that considered most attributes in both quantitative and temporal changes in extremes. The results showed that the proposed approach is a promising approach for regionalization in term of physical understanding of extreme rainfall.

• Journal of Industrial Convergence
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• v.20 no.7
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• pp.73-78
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• 2022

This paper is a study on locality in architecture in Jeju with the theme of locality of architecture. This paper, as the last research paper in this series of studies, is a paper that verifies whether there is anything other than the locality revealed in the categories of 'hermeneutic' and 'phenomenal'. To this end, in this paper, the regional characteristics of the buildings of five Jeju IT companies were analyzed. As a result, the elements reflected in the architecture in terms of the locality of Jeju were quite insufficient. This can be seen as a result of the fact that the corporate image is important in terms of the architecture of an IT company. Nevertheless, if we summarize the elements that reflect the characteristics of Jeju in IT architecture, it is the wind and oreum used as architectural concepts, and Jeju stone used as the exterior finish. In conclusion, it could be seen that the regional characteristics of wind, oreum, and Jeju stone were used in IT architecture, and it was also found that these characteristics were within the scope of interpretive locality and phenomenal locality. Soon, it was found that the locality of Jeju architecture was within the hermeneutic and phenomenal category.

• Journal of Digital Convergence
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• v.15 no.8
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• pp.455-463
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• 2017

Background/Objectives: The purpose of the study is to derive a goal usable in the field by exploring the case management success experiences of case managers. Civil case managers state that what is still important in case management practice is qualitative change made in the practice process. Therefore, the study will deal with detailed contents about case management that civil domain case managers consider to be important. Methods/Statistical analysis: For data collection, the study used focus group interview on 20 professional case management social workers and used Grounded theory method by Glaser for data analysis. The analysis of collected data consisted of a process of finding the categories and characteristics of the research problem. Findings: As a result of analysis, 4 categories, 10 subcategories, and 25 elements were derived for success experiences of case management practice. The categories were divided into satisfaction and ability improvement of client, case manager ability improvement, establishment of organization and environment function, and multilateral trust relationship strengthening. Improvements/Applications: The results of this study further clarified the goal of field case management practice and it was suggested as a plan to reflect on future case management related institutions evaluation.