移动数据具有数量庞大、类型多样、时效性强和高价值等特点.移动通信数据是一种重要的移动数据,对高效地存储和访问移动通信数据进行研究,并在此基础上更加有效地开展移动数据挖掘的相关研究,具有重大现实意义.当前,使用并行数据挖掘技...移动数据具有数量庞大、类型多样、时效性强和高价值等特点.移动通信数据是一种重要的移动数据,对高效地存储和访问移动通信数据进行研究,并在此基础上更加有效地开展移动数据挖掘的相关研究,具有重大现实意义.当前,使用并行数据挖掘技术进行数据挖掘得到普遍认可,但并行数据挖掘技术需要较高的硬件成本,并行算法代码调试和优化较为困难.为此提出大规模移动通信数据的单机实现MCDS(mobile communication data processing system).MCDS基于GraphChi,改进了数据格式、分片机制、数据分片换入换出机制.实验结果验证了MCDS的有效性,为移动数据挖掘提供了切实可行的实验环境.展开更多
Malformations of cortical development(MCDs)represent one of the most common causes of childhood-onset epilepsy,and are often refractory to antiseizure medications(Guerrini,2006;Guerrini and Dobyns,2014;Severino et al....Malformations of cortical development(MCDs)represent one of the most common causes of childhood-onset epilepsy,and are often refractory to antiseizure medications(Guerrini,2006;Guerrini and Dobyns,2014;Severino et al.,2020).Mild malformation of cortical development with oligodendroglial hyperplasia in epilepsy(MOGHE)is a newly recognized subtype of Focal Cortical Dysplasia(FCD),which was officially added to the FCD classification in 2022 by the International League Against Epilepsy(ILAE)(Najm et al.,2022).展开更多
文摘移动数据具有数量庞大、类型多样、时效性强和高价值等特点.移动通信数据是一种重要的移动数据,对高效地存储和访问移动通信数据进行研究,并在此基础上更加有效地开展移动数据挖掘的相关研究,具有重大现实意义.当前,使用并行数据挖掘技术进行数据挖掘得到普遍认可,但并行数据挖掘技术需要较高的硬件成本,并行算法代码调试和优化较为困难.为此提出大规模移动通信数据的单机实现MCDS(mobile communication data processing system).MCDS基于GraphChi,改进了数据格式、分片机制、数据分片换入换出机制.实验结果验证了MCDS的有效性,为移动数据挖掘提供了切实可行的实验环境.
基金support from the following grants:the Natural Science Foundation of Beijing Municipality(7242149,L202034,7244416)the E-Town Cooperation&Development Foundation(YCXJ-JZ-2023-017)+3 种基金the National Natural Science Foundation of China(82171694,81901155)National High Level Hospital Clinical Research Funding(High Quality Clinical Research Project of Peking University First Hospital)(23cz020202)National High Level Hospital Clinical Research Funding(Youth Clinical Research Project of Peking University First Hospital)(2023YC19)National High Level Hospital Clinical Research Funding(Scientific Research Seed Fund of Peking University First Hospital)(2023SF42).
文摘Malformations of cortical development(MCDs)represent one of the most common causes of childhood-onset epilepsy,and are often refractory to antiseizure medications(Guerrini,2006;Guerrini and Dobyns,2014;Severino et al.,2020).Mild malformation of cortical development with oligodendroglial hyperplasia in epilepsy(MOGHE)is a newly recognized subtype of Focal Cortical Dysplasia(FCD),which was officially added to the FCD classification in 2022 by the International League Against Epilepsy(ILAE)(Najm et al.,2022).
