• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.10a
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• pp.228-235
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• 2008

새정부 들어 주택의 안정적 공급을 위한 대책을 내놓고 있으나, 주택 수요 공급과 관련된 통계 및 정보의 종합적 관리 체계 미흡으로 주택수급상황을 파악하여 주택수급에 대처하는 주택하위 시장별 대응정보가 미비한 실정이다. 이에 따라 수급상황을 분석 및 제공하기 위한 정보시스템을 구축 "주택 수요"가 있는 곳에 "주택을 공급"하는 정책지원체계가 요구되고 있다. 이를 위해 본 연구는 행정생활권, 광역교통망, 주택사업위치, 공공 민간 사업지구 등의 GIS정보 기반에 주택 수요 공급 통계 및 정보를 분석하여 정책지원 및 대국민 서비스를 하는 정보체계인 주택수급지도(Housing Demand and Supply Mapping Model)의 구축방안을 제시하였다. 연구에서는 주택수급에 필요한 수요현황 및 예측 등 "주택수요정보"에 기초하여 주택건설, 공급, 재고 등의 "주택공급정보"를 분석하여 주택수급지도에 대한 기본설계 방안을 도출하였다. 향후 주택수급지도를 활용하여 주택수급상황을 한눈에 파악하고, 주택수요를 고려한 수요자별 맞춤형 주택공급정책을 수립할 수 있도록 지원함으로써, 지역별, 주택 규모별, 주택유형별, 인구계층별 주택수급 예측에 활용될 수 있을 것으로 기대된다.

• Proceedings of the Korean Statistical Society Conference
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• 2003.05a
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• pp.1-6
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• 2003

인공위성을 이용한 원격탐사가 일반화되어 있는 선진국의 경우 인공위성의 관측자료를 이용한 여러 가지 분야의 연구가 활발하게 이루어지고 있다. 이러한 국제적 경향은 결과적으로 원격탐사정보와 지리정보시스템 기술의 가져오게 되는 계기가 되었다. 이로 인해 환경조사 및 자원탐사, 홍수, 가뭄, 쓰레기 처리, 농업 식량예측, 사막화 해양오염 등 여러 가지 응용 분야에 유용하게 사용되고 있다. 에쉬론 해석법(Myers et. al., 1997)은 이러한 원격탐사에 의해 얻은 각종 공간 데이터 해석을 위해 개발된 것으로, 공간데이터의 위상적 구조를 계통적이고 객관적으로 발견하기 위한 해석법이다. 본 연구에서는 한국의 시${\cdot}$도별 인구 데이터에 본 해석법을 적용해 본다.

• Environmental and Resource Economics Review
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• v.4 no.1
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• pp.125-154
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• 1994

인구 및 주택건축 총조사보고서의 년도별로 분류된 잔존주택에 관한 정보에는 멸실되어 소실된 주택과 당시의 신규주택분에 관한 정보를 얻을 수 없고, 센서스이후 추계된 최근의 지역통계는 기간내 발생한 멸실주택에 대한 추계과정이 생략되어 주택의 통계가 과대계상되어 있다. 본 연구는 지역별 주택수 예측의 방법을 제시하고 주택형태별, 평형별, 난방형태별 분포현황의 분석과 전망을 시도하였다. 지역별 주택수의 예측에서 지역별 주택의 건축년도와 멸실이 독립이라는 가정하에 주택의 수명, 최대멸실확율을 보이는 지역별 이항분포(Binomial Distribution)를 찾아내었다. 주어진 Data의 특성에 따라 얻어진, 지역별로 다른 최적의 분포와 이에 따라 산정된 각 시점의 신규주택수를 이용하여 미래의 주택수를 전망하였다. 주택형태, 평형, 난방시설분포의 현황분석과 전망은 각 형태의 비율을 산정, 추정하는 방식을 택했다.

• Journal of the Korean Data and Information Science Society
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• v.23 no.1
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• pp.131-142
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• 2012

Since Korea is moving towards the aged society, increasing is the social attention on overall life satisfaction of the elderly. The purpose of this study is to find the factors affecting the life satisfaction of the elderly among demographic characteristics of aged people, categorized satisfactions and sources of income, based on the 2008 national survey data of the actual living condition of the elderly and welfare need. We found that many factors have significant impact on the life satisfaction of the elderly, such as demographic characteristics, the level of physical and mental health, the economic level.

• Journal of Digital Convergence
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• v.12 no.3
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• pp.17-27
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• 2014

This research extends the research stream of technostress by incorporating age and gender as moderators of user perceptions in the workplace. Individual reactions toward technostress were studied throughout the past decade. However, changing demographic patterns have led to an increasingly older workforce. Gender effects in individual reactions toward technological stress differ based on age. Specifically, gender differences in technology perceptions became more pronounced among older workers, but a unisex pattern of results emerged among younger workers. The results from this study suggest that the factors of technostress is changed by gender and age. In light of these findings, theoretical and practical implications for researchers and practitioners are discussed.

• KIISE Transactions on Computing Practices
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• v.21 no.11
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• pp.733-738
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• 2015

User demographic information is necessary in order to improve the quality of personalized services such as recommendation systems. Mobile data, especially text data, is known to be effective for prediction of user demographic information. However, mobile text data has privacy issues so that its utilization is limited. In this regard, we introduce an on-device gender prediction framework utilizing mobile text data while minimizing the privacy issue. Discriminative word and emoticon sets of each gender are constructed from web documents written by authors of each gender. After gender prediction is performed by comparing discriminative word and emoticon sets with a user's mobile text data, an ensemble method that combines two prediction results draws a final result. From experiments conducted on real-world mobile text data, the proposed on-device framework shows promising results for gender prediction.

• Spatial Information Research
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• v.9 no.2
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• pp.239-261
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• 2001

A large suite of official statistical data sets has been compiled for geographical units under the national directives, and it is the quantitative regional analysis procedures that could add values to them. This paper reports our attempts at prototyping a statistical GIS which is capable of serving over the Web a variety of regional analysis routines as well as value-added statistics and maps. A pilot database of some major statistical data was ingested for the city of Seoul. The baseline subset of regional analysis methods of practical usage was selected and accommodated into the business logic of the target system, which ranges from descriptive statistics, regional structure/inequality measures, spatial ANOVA, spatial (auto) correlation to regression and residual analysis. The leading-edge information technologies including the application server were adopted in the system design and implementation so that the database, analysis modules and analytic mapping components may cooperate seamlessly behind the Web front-end. The prototyped system supports tables, maps, and files of downloadable format for input and output of the analyses. One of the most salient features of out proposed system is that both the database and analysis modules are extensible via the bi-directional interface for end users; The system provides users with operators and parsers for algebraic formulae such that the stored statistical variables may be transformed and combined into the newly-derived set of variables. This functionality eventually leads to on-the-fly fabrication of user-defined regional analysis algorithms. The stored dataset may also be temporarily augmented by user-uploaded dataset; The extension of this form, in essence, results in a virtual database which awaits for users commands as usual. An initial evaluation of the proposed system confirms that the issues involving the usage and dissemination of information can be addressed with success.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.203-208
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• 2017

The South Korean society is rapidly aging, thereby highlighting the need to urgently prepare for the stabilization of housing for the elderly. In order to address such issues stemming from the elderly population, the South Korean government has been ramping up the supply of public silver houses for the elderly. Furthermore, it is necessary to select the optimal construction sites and conduct financial feasibility study on the selected sites in order to ensure a successful supply of public silver houses. In this study, the author proposed the need for building an integrated database by using geographic and demographic information, as well as the information on social welfare costs. Moreover, a concept for a system capable of performing optimal site analysis and feasibility study using the aforementioned information was suggested.

• Journal of the Korean Society for information Management
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• v.21 no.3
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• pp.61-82
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• 2004

The purpose of this study is to examine how the commonly known profile of public library users was described, by reviewing the literature published in the United States before the 1990s, when information environment of the public has been drastically changed. The profile of users as the socio-economically advantaged, active participants, and communication elites, has little changed since Berelson's study in the 1940s. Continuing research on users, however, are still needed to better understand their needs and behavior, facing the change since the 1990s.

• The Korean Journal of Applied Statistics
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• v.35 no.1
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• pp.1-17
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• 2022

We propose a test of consistency for two differentially private histograms using parametric bootstrap. The test can be applied when the original raw histograms are not available but only the differentially private histograms and the privacy level α are available. We also extend the test for the case where the privacy levels are different for different histograms. The resident population data of Korea and U.S in year 2020 are used to demonstrate the efficacy of the proposed test procedure. The proposed test controls the type I error rate at the nominal level and has a high power, while a conventional test procedure fails. While the differential privacy framework formally controls the risk of privacy leakage, the utility of such framework is questionable. This work also suggests that the power of a carefully designed test may be a viable measure of utility.