Zhongshan Daxue xuebao. Yixue kexue ban目的采用机器学习方法构建冠状动脉狭窄风险识别模型，分析影响冠状动脉狭窄的主要因素。方法连续纳入2013年1月至2020年5月就诊于山西省两所医院，经冠状动脉造影确诊为冠心病的患者。以患者临床资料为自变量，Gensini积分为结局变量，采用Logistic回归、反向传播神经网络（BPNN）和随机森林（RF）算法构建冠状动脉狭窄风险识别模型。通过灵敏度（TPR）、特异度（TNR）、准确率（ACC）、阳性预测值（PV+）、阴性预测值（PV-）、受试者工作特征曲线下面积（AUC）和校准曲线进行模型评价 ...
吕勇峰 +5 more
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Rapid Identification and Extraction of Anthropogenically Disturbed Regions Resulting from Production and Construction Projects in Hubei Province from 2017 to 2021 [PDF]
, 2023 [Objective] This study attempted to identify and extract anthropogenic disturbance areas resulting from production and construction projects in Hubei Province from 2017 to 2021.
Hua Li +3 more
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Geological structure recognition model based on improved random forest algorithm [PDF]
, 2023 Seismic attributes are often used for structural interpretation and prediction. In order to overcome the problems of multiple solutions and uncertainty caused by single seismic attribute prediction, seismic multi-attribute fusion technology is used to ...
Huaixiu WANG, Siyi FENG, Zuiliang LIU
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Extraction of metamorphic minerals by multiscale segmentation combined with random forest [PDF]
, 2022 The identification of metamorphic minerals is the basis of metamorphic rock research. Extraction of mineral information by remote sensing technology has been widely used.
Guo-qiang WANG +3 more
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, 2018 为了更合理地调度出租车资源,提出基于机器学习的智能出租车预测系统.首先,对波尔图出租车GPS数据集进行分割处理,并抽取其中的一部分作为研究对象;接着利用回声状态网络算法预测旅行目的地;最后利用随机森林算法在相同情况下预测出租车抵达时间.实验表明本系统能根据当前的波尔图出租车GPS数据集预测出实际出租车某段旅程的目的地和旅程所需要的时间,以达到减少出租车资源浪费的目的.福建省自然科学基金(2017J01739);;福建师范大学教学改革研究项目(I201602015)~
叶锋 +4 more
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Establishment of Mathematical Models for Skeletal Age Determination of Extremitas Sternalis of Clavicle in Shanxi Adolescents [PDF]
, 2020 Objective To develop mathematical models for skeletal age determination with multiple statistic method based on the correlation between age and the growth of the epiphysis of extremitas sternalis of clavicle in Shanxi adolescents.
ZHANG Hua-hua , ZHAO Chen , LIU Hu-yue , et al.
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Comparison and application on meteorological forecast models of geological hazards for highways in low mountain and hilly area: A case study along the highways in Jiangxi Province [PDF]
, 2023 In order to improve the prediction and early warning of road geological hazards and mitigate the impact of heavy rainfall on the safety of high-speed driving in mountainous areas, this paper combines precipitation data from national meteorological ...
Keyong XIE +3 more
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Data-driven Health Status Prediction of the Hydraulic Turbine Governing System [PDF]
, 2017 水轮机调速系统是水轮发电机组的关键控制系统。运用故障树与专家系统相结合的方法对调速系统可能发生的故障进行诊断,并基于历史数据,挖掘与故障相关的可能因素,对专家系统无法解决的故障进行分析,构建了基于数据驱动的水轮机调速系统健康状态预测系统。The hydraulic turbine governing system is the key control system of the hydro-turbine generator unit.
周绮凤 +6 more
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Modeling Methods and Influencing Factors for Age Estimation Based on DNA Methylation [PDF]
, 2023 Age estimation based on tissues or body fluids is an important task in forensic science. The changes of DNA methylation status with age have certain rules, which can be used to estimate the age of the individuals.
Yi-hang HUANG, Wei-bo LIANG, Hui JIAN, Sheng-qiu QU
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Metabonomics Analysis of Brain Stem Tissue in Rats with Primary Brain Stem Injury Caused Death [PDF]
, 2023 Objective To explore the potential biomarkers for the diagnosis of primary brain stem injury （PBSI） by using metabonomics method to observe the changes of metabolites in rats with PBSI caused death.
Qin SU, Qian-ling CHEN, Wei-bin WU, Qing-qing XIANG, Cheng-liang YANG, Dong-fang QIAO, Zhi-gang LI
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