There are four kinds of error sources for logging data: method error, environmenterror, instrument error and error caused by negligence of operators.
测井数据误差来源归纳起来有四种：方法误差、环境误差、装置误差和人为误差。
2
Through finding, organization error has 5 big categories, that is supervision error, information error, training error, surrounding environmenterror and work condition error;
通过研究发现，组织失误有监管失误、信息交流失误、培训失误、周围环境失误与工作条件失误5大类；
3
They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment.