单细胞多组学测序正在广泛应用于生物医学研究中,并产生大量的多样性组学数据。然而原始的单细胞多组学数据包含多种类型的测序噪声和冗余信息,对后续生物医疗层面的分析造成困难。现有的降噪方法主要依赖于单一的数据分布假设,并针对...单细胞多组学测序正在广泛应用于生物医学研究中,并产生大量的多样性组学数据。然而原始的单细胞多组学数据包含多种类型的测序噪声和冗余信息,对后续生物医疗层面的分析造成困难。现有的降噪方法主要依赖于单一的数据分布假设,并针对性的处理单个组学数据,这对模型联合处理不同组学数据造成极大地限制。本研究提出一种使用单细胞多组学数据降噪的分析方法,称为scMAED(single-cell multi-omics data via a multi-head autoencoder network to denoising)。模型在多头自动编码器网络中添加了分类解码器,以无监督的方式来最大程度的去除数据噪声。首先,使用两个编码器独立学习多组学数据的内部特征,并联合输出的低维特征进行共同解码。其次,分类解码器不做任何数据分布假设,通过使用预测的细胞簇标签来反馈数据信息,以最大限度的去除复杂噪声。最后,使用主成分分析和t-SNE进行可视化。本文基于模拟数据集和真实的小鼠数据集对模型进行性能评估,结果显示sc-MAED在降噪效果上优于实验中的对比方法,并能够极大的改善单细胞多组学数据的质量。展开更多
A representation of residual stress graphic symbols in technical product documents is studied.The residual stress state of the product can be annotated in the technical product documents such as design drawings,proces...A representation of residual stress graphic symbols in technical product documents is studied.The residual stress state of the product can be annotated in the technical product documents such as design drawings,process documents,test reports,papers and monographs.The composition of residual stress and the design of basic symbols,measurement method symbols,relief method symbols and state symbols of residual stress,and the representation of annotation for residual stress in documents are introduced.Residual stress symbol can be used in the design,manufacturing,inspection and service for the residual stress state requirements of the products in the mechanical manufacturing industry,as well as in light industry,daily necessities and other related industries.展开更多
文摘单细胞多组学测序正在广泛应用于生物医学研究中,并产生大量的多样性组学数据。然而原始的单细胞多组学数据包含多种类型的测序噪声和冗余信息,对后续生物医疗层面的分析造成困难。现有的降噪方法主要依赖于单一的数据分布假设,并针对性的处理单个组学数据,这对模型联合处理不同组学数据造成极大地限制。本研究提出一种使用单细胞多组学数据降噪的分析方法,称为scMAED(single-cell multi-omics data via a multi-head autoencoder network to denoising)。模型在多头自动编码器网络中添加了分类解码器,以无监督的方式来最大程度的去除数据噪声。首先,使用两个编码器独立学习多组学数据的内部特征,并联合输出的低维特征进行共同解码。其次,分类解码器不做任何数据分布假设,通过使用预测的细胞簇标签来反馈数据信息,以最大限度的去除复杂噪声。最后,使用主成分分析和t-SNE进行可视化。本文基于模拟数据集和真实的小鼠数据集对模型进行性能评估,结果显示sc-MAED在降噪效果上优于实验中的对比方法,并能够极大的改善单细胞多组学数据的质量。
基金Supported by the National Natural Science Foundation of China (Grant No. U1737203)National Key Basic Research Project (Grant No. 2020-JCJQ-ZD-191)
文摘A representation of residual stress graphic symbols in technical product documents is studied.The residual stress state of the product can be annotated in the technical product documents such as design drawings,process documents,test reports,papers and monographs.The composition of residual stress and the design of basic symbols,measurement method symbols,relief method symbols and state symbols of residual stress,and the representation of annotation for residual stress in documents are introduced.Residual stress symbol can be used in the design,manufacturing,inspection and service for the residual stress state requirements of the products in the mechanical manufacturing industry,as well as in light industry,daily necessities and other related industries.
