地価公示・都道府県地価調査における標準地・基準地点の配置問題への地球統計学の応用  [in Japanese] GEOSTATISTICS FOR THE ASSESSED SITE ALLOCATION PROBLEM IN OFFICIALLY ASSESSED LAND PRICE AND PREFECTURAL LAND PRICE  [in Japanese]

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Abstract

サンプル(標本)の適切な抽出方法の設計は,統計学における大きな関心事の一つである.空間データを対象とした空間統計学の一種である地球統計学においてもその重要性は同様であり,サンプル地点の配置の議論が近年活発化している.本研究では地価公示・都道府県地価調査における標準地・基準地の選定の問題,本稿では特に削減の問題を例に,地球統計学に基づくサンプリングデザインの方法の応用を試みる.まず,標準地・基準地がどのように選定されているかを概観する.次に,地球統計学の関連研究を簡単に整理した上で,地価公示・都道府県地価調査の主旨に整合したサンプリングデザインの方法を提示する.最後に,提示した方法を用いて茨城県内の地価公示と都道府県地価調査における標準地・基準地の地点を削減する問題を解きその有用性を確認する.

 Designing sampling strategy is a major concern in statistics. The same also holds for study fields that discuss spatial data modeling, including geostatistics; and, recently, sample site selection design is intensively discussed in these fields. This study applies geostatistics to the assessed site allocation problem in the officially assessed land price data and prefectural land price data in Japan. Firstly, we explain these land price data, while mainly focusing on basic rules of their assessed site allocation. Then, studies discussing sampling design problems are briefly summarized. Subsequently, points, which we must consider, are clarified, and geostatistical approaches for the land price assessed site allocation problem are developed based on the points. Finally, the developed approaches are used to the assessed site reduction problem in Ibaraki prefecture, and their effectiveness is examined.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)

    Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 71(2), 31-43, 2015

    Japan Society of Civil Engineers

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