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Author:

Liu, Yiqiao (Liu, Yiqiao.) | Chong, Wen Tong (Chong, Wen Tong.) | Yau, Yat Huang (Yau, Yat Huang.) | Wu, Jinshun (Wu, Jinshun.) | Chang, Yufan (Chang, Yufan.) | Cui, Tong (Cui, Tong.) | Chang, Li (Chang, Li.) | Pan, Song (Pan, Song.)

Indexed by:

EI Scopus SCIE

Abstract:

The diverse window-opening behaviors of individuals can result in significant differences in indoor thermal environments, air quality, and energy utilization. However, the majority of existing studies focus on constructing an average window operation model, thus overlooking the diversity of behaviors. Current methods for addressing behavioral diversity face challenges with integration into building performance simulation software and are highly dependent on data scale. To address these limitations, this study proposes a novel approach that combines unsupervised learning (K-Means) and supervised learning (Light Gradient Boosting Machine, LightGBM) for modeling the diverse window-opening behaviors. Furthermore, the SHapley Additive exPlanations (SHAP) was employed to interpret the predictive model. This study yielded four key findings: 1) There were 12 different window-opening behavior patterns. Interestingly, 65 % of the residents ' window-opening behaviors were not influenced by environmental factors but were instead a matter of personal habit. 2) Using random sampling to divide the dataset may pose a risk of data leakage. The time series cross-validation method is more suitable for evaluating the performance of the window state prediction model. 3) Under the time series sampling strategy, the LightGBM model incorporating behavioral diversity improved the prediction accuracy by 1.3% - 10.4 % compared to the standalone LightGBM model. Notably, when the daily average window opening time was used as a clustering feature in the LightGBM model (Cluster(T)-LightGBM), the accuracy reached 87.1 %. 4) The SHAP feature analysis highlighted high-intensity window-opening categories, outdoor temperature, and indoor CO 2 concentration as the most pivotal predictors.

Keyword:

Light gradient boosting machine SHapley additive exPlanations Window-opening behavior Behavioral diversity K-Means

Author Community:

  • [ 1 ] [Liu, Yiqiao]Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 2 ] [Chong, Wen Tong]Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 3 ] [Yau, Yat Huang]Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 4 ] [Chang, Li]Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
  • [ 5 ] [Chong, Wen Tong]Univ Malaya, Ctr Energy Sci, Kuala Lumpur 50603, Malaysia
  • [ 6 ] [Wu, Jinshun]North China Inst Sci & Technol, Coll Architecture & Civil Engn, Sanhe 065201, Peoples R China
  • [ 7 ] [Chang, Yufan]Hunan Univ, Coll Civil Engn, Dept Bldg Environm & Energy, Changsha 410082, Hunan, Peoples R China
  • [ 8 ] [Cui, Tong]Changan Univ, Sch Civil Engn, Dept Bldg Environm & Energy Engn, Xian 710061, Peoples R China
  • [ 9 ] [Pan, Song]Beijing Univ Technol, Beijing Key Lab Green Built Environm & Energy Effi, Beijing 100124, Peoples R China
  • [ 10 ] [Pan, Song]Jilin Jianzhu Univ, Key Lab Comprehens Energy Saving Cold Reg Archite, Minist Educ, Changchun 130118, Peoples R China

Reprint Author's Address:

  • [Chong, Wen Tong]Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia;;

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Source :

BUILDING AND ENVIRONMENT

ISSN: 0360-1323

Year: 2024

Volume: 257

7 . 4 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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