相关实验视频

Updated: May 10, 2025

Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging

Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging

Published on: May 5, 2011

一个基于测量的框架,集成机器学习和外界温度调节的形态动态

Niloufar Alinasab¹, Negar Mohammadzadeh², Alireza Karimi³

¹Department of Atmospheric and Geospatial Data Sciences, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary. nfar.alinasab@gmail.com.

International journal of biometeorology

|April 21, 2025

概括

机器学习模型使用城市峡谷特征准确预测室外热舒适度 (OTC). 街道的方向和宽度对UTI,PET和PMV等热指数产生重大影响,有助于城市减热策略.

科学领域:

城市气候学和环境科学.
人工智能在环境研究中的应用.

背景情况:

户外热舒适 (OTC) 对城市居民的福祉至关重要.
城市形态学显著影响当地微气候和热感知.
现有的模型往往缺乏在不同的城市环境中进行全面验证.

研究的目的:

研究机器学习 (ML) 模型,城市形态特征和户外热舒适度指标之间的关系.
评估和优化ML模型,用于预测通用热气候指数 (UTCI),生理等效温度 (PET) 和预测平均投票率 (PMV).
通过使用SHAP值来确定影响OTC的最有影响力的城市形态因素.

主要方法:

夏季在173个城市峡谷进行了全面的现场测量.
使用贝叶斯优化评估和优化六个ML模型 (例如,CatBoost,随机森林,XGBoost).
使用SHAP值来分析特征重要性,以了解城市形态学对OTC的影响.

主要成果:

CatBoost,随机森林和XGBoost在UTCI,PET和PMV预测方面表现出分别优异的性能.
城市峡谷的方向 (90°和180°) 和街道宽度被确定为影响OTC的关键因素.
路宽成为PMV预测的最关键因素,突出了复杂的热力学.

结论:

机器学习模型提供了基于城市形态学的OTC预测的强有力的方法.
城市设计元素,特别是街道的方向和宽度,在调节热环境方面发挥着至关重要的作用.
这些发现有助于通过明智的设计策略来理解和减轻城市热应激.

关键词:

贝叶斯优化是贝叶斯的优化.机器学习模型的机器学习模型微气候的动态微气候的动态形态特征形态特征形态特征在户外的热舒适度.在SHAP中,价值是SHAP值.

更多相关视频

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Published on: January 30, 2020

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

相关概念视频

Mechanism of heat transfer

Mechanism of heat transfer

Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...

Body Temperature

Body Temperature

The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...