成約賃料の分散比最大化に基づくオフィスビルのグレード分類手法に関する研究

摘要

Some companies related to real estate grade office buildings by their spec and use it for the analysis of office building markets segmented by the grade. However, the standard of the grading is decided subjectively and varies by the companies. In this paper we propose the quantitative method for deciding the grade. We statistically evaluate the variance of contracted rents between grades with variance ratio and maximize it by optimizing the threshold of building attributes using mixed integer linear programing. Through the validation with the data of Tokyo 23 wards, we show the proposed method can grade office buildings with higher variance ratio than existing standards.%本研究では，これまで主観的になされてきたオフィスビルのグレード分類を定量的に行う手法を構築することを目的として，成約賃料を目的変数として，そのグレード間のばらつきを分散比で評価し，それを最大化する各属性の閾値を混合整数計画法によって最適化する方法を提案し，東京23区内に立地するオフィスビルのデータを用いて検証を行った.