preprocessing主题的文章列表，还有preprocessing的技术要点_第1页

ORA-28534: Heterogeneous Services preprocessing error

文档解释ORA-28534:HeterogeneousServicespreprocessingerrorCause:OneofthethingsthattheHeterogeneousServicescandoistopreprocesspartsofSQLstatementsthatcontainimplicitc...

IT技术学习 ·2023-07-28

ORA-15518: parallel preprocessing encountered an unexpected error

文档解释ORA-15518:parallelpreprocessingencounteredanunexpectederrorCause:Anunexpectederroroccuredduringparallelpreprocessing.Action:Findtherootcauseorsimplypreproce...

IT技术学习 ·2023-07-18

ORA-15557: workload replay client cannot access the replay directory or the database version do not match the preprocessing one

文档解释ORA-15557:workloadreplayclientcannotaccessthereplaydirectoryorthedatabaseversiondonotmatchthepreprocessingoneCause:TheWorkloadReplayClientcouldnotaccessthed...

IT技术学习 ·2023-07-18

ORA-15517: cannot start parallel preprocessing worker

文档解释ORA-15517:cannotstartparallelpreprocessingworkerCause:Oneoftheparallelpreprocessingworkerscouldnotbestarted.Action:Findtherootcauseorsimplypreprocessthework...

IT技术学习 ·2023-07-16

ORA-15516: parallel preprocessing worker hit error ORA-string

文档解释ORA-15516:parallelpreprocessingworkerhiterrorORA-stringCause:Oneoftheparallelpreprocessingworkersdiedunexpectedlywhileprocessingtheworkload.Action:Findthero...

IT技术学习 ·2023-07-08

sklearn preprocessing （预处理）

预处理的几种方法：标准化、数据最大最小缩放处理、正则化、特征二值化和数据缺失值处理。知识回顾：p-范数：先算绝对值的p次方，再求和，再开p次方。数据标准化：尽量将数据转化为均值为0，方差为1的数据，形如标准正态分布（高斯分布）。标准化（Standardization）公式为：(X-X_mean)/X_std计算时对每个...

代码星球 ·2020-07-22