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However, the categorization of MIC varies across regions especially for buildings that diverge greatly along the history and space aspect, and acquisition of MIC data and building information have always been a challenge in related studies. In this study, the state\u2010of\u2010art ensemble model \u201cRandom Forest\u201d was developed on Chinese buildings to identify the impact of four building attributes (building structure, construction year, use type, and region) on MIC, and these features\u2019 importance was further assessed by considering variable correlations. The features\u2019 importance and their individual effects on MIC were intuitively revealed by depicting the partial dependence plots. Finally, a set of hierarchical MIC values was estimated by integrating the order of four variables\u2019 importance and a quick MIC calculator was provided. Results showed that building structure is the most influential attribute for MIC, followed by the construction year, use type, and region, successively. The RF\u2010based MIC values allow researchers to apply it to material stock and flow analysis by choosing a specific building feature(s) in the MIC calculator, which is (are) available in building physical inventory data. This study provides a method that could help researchers locate key influencing variables and give insights into the comparability of MIC research across regions and play an important role in developing urban mining and circular economy strategies.<\/jats:p>","DOI":"10.1111\/jiec.13332","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T10:43:07Z","timestamp":1665398587000},"page":"1809-1823","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["What matters most to the material intensity coefficient of buildings? Random forest\u2010based evidence from China"],"prefix":"10.1007","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1477-4459","authenticated-orcid":false,"given":"Ruirui","family":"Zhang","sequence":"first","affiliation":[{"name":"Graduate School of Environmental Studies Nagoya University  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1962-6559","authenticated-orcid":false,"given":"Jing","family":"Guo","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental Studies Nagoya University  Nagoya Japan"},{"name":"Institute of Urban Environment Chinese Academy of Sciences  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7287-3896","authenticated-orcid":false,"given":"Dong","family":"Yang","sequence":"additional","affiliation":[{"name":"Qilu University of Technology (Shandong Academy of Sciences) Institute of Science and Technology for Development of Shandong  Jinan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroaki","family":"Shirakawa","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental Studies Nagoya University  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Shi","sequence":"additional","affiliation":[{"name":"Qilu University of Technology (Shandong Academy of Sciences) Institute of Science and Technology for Development of Shandong  Jinan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5896-9629","authenticated-orcid":false,"given":"Hiroki","family":"Tanikawa","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental Studies Nagoya University  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,10,10]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.resconrec.2021.105885"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jkss.2012.10.002"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.5334\/bc.126"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1201\/9780429027192"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1010933404324"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jiec.12579"},{"key":"e_1_2_9_8_1","first-page":"77","volume-title":"Methodology for mapping of physical stocks. 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