伴随着社会经济的快速发展,地铁、隧道、桥梁等建筑在人们的生活中占据的地位越来越高,预测分析建筑的结构变形数据,及时发现存在的安全隐患,至关重要.结合长短时记忆网络(Long Short Time Memory, LSTM)的优点,本文提出了一种基于双向...伴随着社会经济的快速发展,地铁、隧道、桥梁等建筑在人们的生活中占据的地位越来越高,预测分析建筑的结构变形数据,及时发现存在的安全隐患,至关重要.结合长短时记忆网络(Long Short Time Memory, LSTM)的优点,本文提出了一种基于双向长短时记忆网络(Bidirectional Long Short Time Memory, Bi-LSTM)的结构变形预测模型.该模型通过记忆时间节点前后的规律,预测当前节点变形数据,充分挖掘变形数据内部的关联信息.与WNN、LSTM、GRU模型进行对比,结果表明,该模型RMSE、MAPE、MAE分别下降了66.0%、61.2%、66.2%,是一种有效预测结构形变的方法.展开更多
Recently,the emergence of cosmological tension has raised doubts about the consistency of the ACDM model.To constrain the neutrino mass within a consistent cosmological framework,we investigate three massive neutrinos...Recently,the emergence of cosmological tension has raised doubts about the consistency of the ACDM model.To constrain the neutrino mass within a consistent cosmological framework,we investigate three massive neutrinos with normal hierarchy(NH)and inverted hierarchy(IH)in both the axion-like early dark energy(AxiEDE)and AdS-EDE models.We use joint datasets including the cosmic microwave background power spectrum from Plaanck 2018,Pantheon of type la supernova,baryon acoustic oscillation,and H0data from SH0ES.For the vAxi-EDE model,we obtain∑m_(v),NH<0.152 eV and∑m_(v),IH<0.178 eV,whereas for the vAdS-EDE model,we find∑m_(v),NH<0.135 eV and∑m_(v),IH<0.167 eV.Our results exhibit a preference for NH in both the vAxi-EDE and vAdS-EDE models.展开更多
文摘伴随着社会经济的快速发展,地铁、隧道、桥梁等建筑在人们的生活中占据的地位越来越高,预测分析建筑的结构变形数据,及时发现存在的安全隐患,至关重要.结合长短时记忆网络(Long Short Time Memory, LSTM)的优点,本文提出了一种基于双向长短时记忆网络(Bidirectional Long Short Time Memory, Bi-LSTM)的结构变形预测模型.该模型通过记忆时间节点前后的规律,预测当前节点变形数据,充分挖掘变形数据内部的关联信息.与WNN、LSTM、GRU模型进行对比,结果表明,该模型RMSE、MAPE、MAE分别下降了66.0%、61.2%、66.2%,是一种有效预测结构形变的方法.
基金XZ is supported by the National Natural Science Foundation of China(12005183)QGH is supported by the National Natural Science Foundation of China(12250010,11975019,11991052,12047503)the Key Research Program of Frontier Sciences,CAS,(ZDBS-LY7009)。
文摘Recently,the emergence of cosmological tension has raised doubts about the consistency of the ACDM model.To constrain the neutrino mass within a consistent cosmological framework,we investigate three massive neutrinos with normal hierarchy(NH)and inverted hierarchy(IH)in both the axion-like early dark energy(AxiEDE)and AdS-EDE models.We use joint datasets including the cosmic microwave background power spectrum from Plaanck 2018,Pantheon of type la supernova,baryon acoustic oscillation,and H0data from SH0ES.For the vAxi-EDE model,we obtain∑m_(v),NH<0.152 eV and∑m_(v),IH<0.178 eV,whereas for the vAdS-EDE model,we find∑m_(v),NH<0.135 eV and∑m_(v),IH<0.167 eV.Our results exhibit a preference for NH in both the vAxi-EDE and vAdS-EDE models.
