A data-driven approach based on quantile regression forest to forecast cooling load for commercial buildings

分位数回归 梯度升压 分位数 计算机科学 特征选择 冷负荷 利用 能源消耗 数据挖掘 随机森林 预测建模 概率预测 回归 机器学习 人工智能 工程类 计量经济学 统计 数学 电气工程 空调 机械工程 概率逻辑 计算机安全
作者
Mashud Rana,Subbu Sethuvenkatraman,Mark Goldsworthy
出处
期刊:Sustainable Cities and Society [Elsevier BV]
卷期号:76: 103511-103511 被引量:5
标识
DOI:10.1016/j.scs.2021.103511
摘要

• Data-driven approach based on quantile regression forest for forecasting cooling load. • Input variables selection by applying mutual information and recursive feature elimination. • Uncertainty quantification by computing Prediction Intervals (PIs). Reliable prediction of thermal load is essential for implementing an efficient and economic energy management plan in commercial buildings. While previous research has been concerned with point forecasts , in this study we focus on forecasting prediction intervals for building thermal load. Prediction Intervals (PIs) are more useful than point forecasts as they can quantify the uncertainty associated with energy consumption in the buildings and enable the market participants to exploit current energy market benefits more effectively. We present a data-driven approach for forecasting PIs for building cooling load which first uses machine learning feature selection methods to identify a small but informative set of variables. It then applies quantile regression forest as the prediction algorithm that uses the selected features as inputs to compute the upper and lower boundaries of PIs. We evaluate the performance of the proposed approach using real data sets from two commercial buildings: a large shopping centre and an office building. The results show that the proposed approach can generate narrow and reliable PIs while satisfying the pre-specified coverage probabilities. The approach is fast to train and significantly outperforms traditional Gradient Boosting Regression (GBR) model in terms of reliability of the generated PIs.
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