期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII Part 4
出版社：Copernicus Publications
摘要：The Japanese are becoming increasingly aware of the significance of the disclosure of in-depth land price data with regard toestablishing land markets with a high level of transparency and fairness. Presently, both the Public Notice of Land Prices, whichessentially comprises values that are appraised by Japan’s Ministry of Land, Infrastructure, Transport and Tourism, and transactionprices, which have been open to the public since 2005, play a major role in land pricing in Japan. However, these datasets alone do notprovide adequate information for all market participants, not only because both are limited in number but also because they are specificto the situation in Japan: the appraised prices are always shown to be cheaper than the actual transaction prices, to a certain degree, andthe important information with transactions such as the precise point in space and time is not completely open to the public owing toprivacy protection. Furthermore, it is difficult to compare these two prices in a simple way as their distribution of points is different. Inthis paper, we propose the publication of valuable land price information by interpolating appraised prices to every transaction point byusing the kriging method, comparing actual transaction prices with them, and drawing a map that allows us to understand the trend ofland prices easily. Moreover, we build the experimental WebGIS service using which anyone can easily search the interpolatedappraised price of the land of their interest and the related land price history and market conditions
关键词：Publication of land price information; Spatio-temporal interpolation; Kriging; Appraised land prices; Transaction land;prices; Real estate market
