Aiming to ensure the consistency of quality control of Traditional Chinese Medicines(TCMs),a combination method of high-performance liquid chromatography(HPLC),ultraviolet(UV),electrochemical(EC)was developed in this ...Aiming to ensure the consistency of quality control of Traditional Chinese Medicines(TCMs),a combination method of high-performance liquid chromatography(HPLC),ultraviolet(UV),electrochemical(EC)was developed in this study to comprehensively evaluate the quality of Antiviral Mixture(AM),and Comprehensive Linear Quantification Fingerprint Method(CLQFM)was used to process the data.Quantitative analysis of three active substances in TCM was conducted.A fivewavelength fusion fingerprint(FWFF)was developed,using second-order derivatives of UV spectral data to differentiate sample levels effectively.The combination of HPLC and UV spectrophotometry,along with electrochemical fingerprinting(ECFP),successfully evaluated total active substances.Ultimately,a multidimensional profiling analytical system for TCM was developed.展开更多
In this paper,an effective target locating approach based on the fingerprint fusion posi-tioning(FFP)method is proposed which integrates the time-difference of arrival(TDOA)and the received signal strength according t...In this paper,an effective target locating approach based on the fingerprint fusion posi-tioning(FFP)method is proposed which integrates the time-difference of arrival(TDOA)and the received signal strength according to the statistical variance of target position in the stationary 3D scenarios.The FFP method fuses the pedestrian dead reckoning(PDR)estimation to solve the moving target localization problem.We also introduce auxiliary parameters to estimate the target motion state.Subsequently,we can locate the static pedestrians and track the the moving target.For the case study,eight access stationary points are placed on a bookshelf and hypermarket;one target node is moving inside hypermarkets in 2D and 3D scenarios or stationary on the bookshelf.We compare the performance of our proposed method with existing localization algorithms such as k-nearest neighbor,weighted k-nearest neighbor,pure TDOA and fingerprinting combining Bayesian frameworks including the extended Kalman filter,unscented Kalman filter and particle fil-ter(PF).The proposed approach outperforms obviously the counterpart methodologies in terms of the root mean square error and the cumulative distribution function of localization errors,espe-cially in the 3D scenarios.Simulation results corroborate the effectiveness of our proposed approach.展开更多
传统物联网设备指纹提取方法通常将流量中的隐私数据用于生成设备指纹并且采用手工设计特征的方式,在形成安全隐患的同时限制了模型的性能。针对上述问题,提出一种基于设备行为的物联网设备指纹深度提取方法(IoT device deep fingerprin...传统物联网设备指纹提取方法通常将流量中的隐私数据用于生成设备指纹并且采用手工设计特征的方式,在形成安全隐患的同时限制了模型的性能。针对上述问题,提出一种基于设备行为的物联网设备指纹深度提取方法(IoT device deep fingerprint extraction,IDFE)。IDFE将网络流量pcap文件划分为多个会话(sessions),并提取非隐私信息构建会话信息矩阵,设计了会话信息矩阵不同信息序列之间的依赖关系和会话数据包之间的时序依赖关系建模方法和融合方法,利用设计的全卷积Transformer提取融合后的会话特征矩阵中设备行为特征并生成设备指纹。在UNSW和YourThings两个公开数据集上进行了广泛的实验,验证了该方法的有效性。展开更多
基金This study was supported by the National Natural Science Foundation of China(No.81573586).
文摘Aiming to ensure the consistency of quality control of Traditional Chinese Medicines(TCMs),a combination method of high-performance liquid chromatography(HPLC),ultraviolet(UV),electrochemical(EC)was developed in this study to comprehensively evaluate the quality of Antiviral Mixture(AM),and Comprehensive Linear Quantification Fingerprint Method(CLQFM)was used to process the data.Quantitative analysis of three active substances in TCM was conducted.A fivewavelength fusion fingerprint(FWFF)was developed,using second-order derivatives of UV spectral data to differentiate sample levels effectively.The combination of HPLC and UV spectrophotometry,along with electrochemical fingerprinting(ECFP),successfully evaluated total active substances.Ultimately,a multidimensional profiling analytical system for TCM was developed.
基金partially supported by the National Natural Science Foun-dation of China(No.62071389).
文摘In this paper,an effective target locating approach based on the fingerprint fusion posi-tioning(FFP)method is proposed which integrates the time-difference of arrival(TDOA)and the received signal strength according to the statistical variance of target position in the stationary 3D scenarios.The FFP method fuses the pedestrian dead reckoning(PDR)estimation to solve the moving target localization problem.We also introduce auxiliary parameters to estimate the target motion state.Subsequently,we can locate the static pedestrians and track the the moving target.For the case study,eight access stationary points are placed on a bookshelf and hypermarket;one target node is moving inside hypermarkets in 2D and 3D scenarios or stationary on the bookshelf.We compare the performance of our proposed method with existing localization algorithms such as k-nearest neighbor,weighted k-nearest neighbor,pure TDOA and fingerprinting combining Bayesian frameworks including the extended Kalman filter,unscented Kalman filter and particle fil-ter(PF).The proposed approach outperforms obviously the counterpart methodologies in terms of the root mean square error and the cumulative distribution function of localization errors,espe-cially in the 3D scenarios.Simulation results corroborate the effectiveness of our proposed approach.
文摘传统物联网设备指纹提取方法通常将流量中的隐私数据用于生成设备指纹并且采用手工设计特征的方式,在形成安全隐患的同时限制了模型的性能。针对上述问题,提出一种基于设备行为的物联网设备指纹深度提取方法(IoT device deep fingerprint extraction,IDFE)。IDFE将网络流量pcap文件划分为多个会话(sessions),并提取非隐私信息构建会话信息矩阵,设计了会话信息矩阵不同信息序列之间的依赖关系和会话数据包之间的时序依赖关系建模方法和融合方法,利用设计的全卷积Transformer提取融合后的会话特征矩阵中设备行为特征并生成设备指纹。在UNSW和YourThings两个公开数据集上进行了广泛的实验,验证了该方法的有效性。
