基于置信区间的偏离群数据检测方法

异常数据检测与处理是数据仓库系统中数据清洗领域的研究热点。该文提出一种基于置信区间的偏离群数据检测方法,从总体中筛选出有效样本,利用遗传算法从中找到可信样本,利用可信样本确定置信区间,基于置信区间对总体进行检测及处理。该方法所处理的数据不需要与时间相关,且可以快速地识别、检测出大数据量中的"脏数据"。实验结果表明,该方法能有效地解决无规则状态下的偏离群数据的检测,并在实际应用中取得了良好效果。

纺织品实验室能力验证过程及数据分析

能力验证能够了解纺织品检测实验室的总体水平,为参加能力验证的实验室确定信心。通过对桑蚕丝捻线丝捻度和冲击摆锤法撕破强力进行能力验证,对能力验证过程中不同人员、设备操作时出现的数据进行分析研究。结果表明,在能力验证实验过程中,建议选用熟悉的仪器操作,当有多种方法可供选择时,选择接近中位的参数,谨慎处理实验中的偏离数据等,为检验检测的准确性和可控性提供参考。

铁矿移动智能机械取制样系统水分损失试验研究

为确保移动智能机械取制样系统运行的准确性,避免出现贸易纠纷,在设备投入使用前和使用中,需要定期或不定期进行精密度、偏差、水分损失等方面的试验对比,以确保设备能够持续满足相关标准要求。本文以移动智能机械取制样系统为例,对贸易双方比较关心的水分结果进行了试验对比。

Research on the O2O Mode and Corresponding Influences on the Online and Offline Internet Marketing

In this paper, we conduct research on the O2O mode and corresponding influence on the online and offline Internet marketing. Precision marketing is on the basis of fully understanding of consumer information, according to its characteristics and primary preferences targeted to carry out the one-to-one marketing. Mobile Internet users are mostly fixed which can be the new network technology in-depth insight into consumer interest and demand, and to establish for each specific customer database. Based on the analysis of customer data, then according to the characteristics of the different customers and the preference information such as the precision marketing, at the same time which can also according to customer＇ s feedback information targeted adjustment of products and the marketing, in order to better meet the needs of customers. Our research combines the O2O concepts and the technique to propose the novel marketing paradigm which is of great importance.