• Journal of Korean Society for Geospatial Information Science
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• v.22 no.1
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• pp.63-70
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• 2014

This study is to analyze impact of geography and timing on the real transactions prices of apartment complexes in Seoul using data provided by the Ministry of Land, Infrastructure and Transport. The average real transactions and location data of apartment complex was combined into the GIS data. First, the pattern of apartment real transaction price change by period and by area was analyzed by kriging, the one of the spatial interpolation technique. Second, to analyze the pattern of apartment market price change by administrative district(administrative 'Dong' unit), the average of market price per unit area was calculated and converted to Moran I value, which was used to analyze the clustering level of the real transaction price. Through the analysis, spatial-temporal distribution pattern can be found and the type of change can be forecasted. Therefore, this study can be referred as of the base data research for the housing or local policies. Also, the regional unbalanced apartment price can be presented by analyzing the vertical pattern of the change in the time series and the horizontal pattern of the change based on GIS.

• 주택과사람들
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• s.202
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• pp.102-103
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• 2007

한 번이라도 주택을 사고 팔아본 경험이 있는 사람이라면 앞으로 부동산 실거래 신고 제도를 반드시 숙지해야 한다. 왜냐하면 앞으로 부동산 거래는 공인 중개사뿐 아니라 공인 중개사가 중개하지 않은 거래 또한 실거래가로 신고해야하기 때문이다. 부동산 거래의 투명성과 과세 형평을 골자로 한 이 제도에 대해 소개하고, 6월 29일부터 시행될 개정 부분도 살펴보자.

• Journal of Korean Society for Geospatial Information Science
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• v.23 no.1
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• pp.55-63
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• 2015

The need for estimating the real transaction price of land is increasing in order to build foundation for transparent land transaction and fair taxation. This study looked into the applicability of cokriging combining real transaction price of land, altitude and gradient for effective price estimation on the points where the real transaction does not take place in the course of using the real transaction price of land. The real transaction price of land have been estimated using the real transaction materials of Yeongcheon, Gyeongsangbuk-do from January 2012 to June 2014, and the results have been compared with the estimation results of ordinary kriging. As a result of analyzing the mean error and root mean square error (RMSE) of the estimated price and 2,575 verification points, it was found that compared to ordinary kriging, cokriging results were more effective in terms of the real transaction price estimation and actualization. The reason that cokriging is more effective in the real transaction price estimation is because it takes account of altitude and gradient which are the forces influencing the land value.

• 주택과사람들
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• s.194
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• pp.76-77
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• 2006

토지 시장 침체의 골이 깊어지고 있다. 새로 개정된 부동산등기법이 시행돼 실거래가 등기부기재가 의무화되면서 토지 시장 침체가 가속화되고 있다. 내년부터는 부재 지주에 대한 양도세가 현행 9~36%에서 60%로 급등하기 때문에 토지 시장이 장기 침체에 빠질 수 있다고 전문가들은 지적한다. 부동산 시장 침체 속 토지 시장의 현장을 돌아보았다.

• The Korean Journal of Applied Statistics
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• v.31 no.2
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• pp.217-228
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• 2018

Since the real estate reporting system was first introduced, about 2 million real estate transaction per year have been reported over the last 10 years with an increasing demand for real estate price estimates. This study looks at the applicability and superiority of the regression-kriging method to derive effective real transaction prices estimation on the location where information about real transaction is unavailable. Several issues on predicting the real estate price are discussed and illustrated using the real transaction reports of Jinju, Gyeongsangnam-do. Results have been compared with a simple regression model in terms of the mean absolute error and root square error. It turns out that the regression-kriging model provides a more effective estimation of land price compared to the simple regression model. The regression-kriging method adequately reflects the spatial structure of the term that is not explained by other characteristic variables.

• 주택과사람들
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• s.199
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• pp.28-31
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• 2006

정부는 투기 수요를 억제하기 위해 8·31 대책으로 보유세를 강화하고 실거래가 과세를 정착시키는 등의 획기적인 주택세제 개편을 추진하고 있다. 하지만 부동산 시장 상황은 거래가 위축되고 가격은 더 치솟고 있다. 정부가 추진하고 있는 세제 개편의 현황과 해결 과제에 대해 살펴본다.

• 주택과사람들
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• s.165
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• pp.18-19
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• 2004

• Journal of Korean Society for Geospatial Information Science
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• v.24 no.4
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• pp.75-81
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• 2016

This study focused on exploring real transaction price of apartment and spatial and temporal heterogeneity of the variables that influence real transaction price of apartment from the spatial and temporal perspective. As independent variables that are considered to influence real transaction price of apartment, transport, local characteristics, educational conditions, population, and economic characteristics were taken into account. Accordingly, the influence of independent variables and spatial distribution pattern were analyzed from the global and local aspects. The spatial and temporal changing patterns of real transaction price of apartment which is a dependent variable were analyzed. First, to establish an analysis model, OLS analysis and GWR analysis were conducted, and thereby more efficient and proper model was selected. Secondly, to find spatial and temporal heterogeneity of independent variables with the use of the selected GWR model, Local $R^2$ was used for local analysis. Thirdly, to look into spatial distribution of independent variables, kriging analysis was carried out. Therefore, based on the results, it is considered that it is possible to carry out more microscopic housing submarket analysis and lay the foundation for establishing a policy on real property.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.69-72
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• 2012

최근 인터넷의 스마트폰 애플리케이션 개발을 통해 사용자들에게 편리한 위치기반 서비스, 증강현실 시스템이 소개되고 있다. 최근 보이스피싱 등의 전화사기 행위가 사회적 문제로 부각되고 있다. 부동산거래 사기에 의한 피해 역시 지속적으로 발생하고 있으며(대법원93다2629,2636 등), 매매과정에서 착오/과실에 의한 부동산 거래 소송(대법원92다38881, 2000다12259 등)역시 지속적으로 발생하고 있다. 부동산 거래현장에서 실시간으로 부동산 등기내역, 실거래가, 공시가격, 거래내역, 개발계획 등의 공공정보를 제공하는 스마트폰 애플리케이션 개발한다. 즉, 증강현실, GPS에 근거한 정확한 위치 및 물건에 대한 정보를 확인할 수 있으므로, 사기/착오/과실/부주의에 의한 부동산 거래를 방지한다. 결과적으로, 부동산 사기로 인한 소송 등 불필요한 사회적 비용을 획기적으로 절감할 수 있는 장점이 있다. 뿐만 아니라, 부동산 실수요자 거래활성화를 유도하는 정부정책에 부합 건전하고 정확한 부동산 거래 활성화에 기여할 것이다.

• Journal of the Korean Data and Information Science Society
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• v.26 no.6
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• pp.1239-1247
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• 2015

In this study, 64 administrative regions with high frequencies of apartment trade in Seoul, Korea are classified by the apartment sale price. To consider distributions of apartment price for each region as well as the mean of the price, the symbolic histogram-valued data approach is employed. Symbolic data include all types of data which have internal variation in themselves such as intervals, lists, histograms, distributions, and models, etc. As a result of the cluster analysis using symbolic histogram data, it is found that Gangnam, Seocho, and Songpa districts and regions near by those districts have relatively higher prices and larger dispersions. This result makes sense because those regions have good accessibility to downtown and educational environment.