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2012年计算机应用与系统建模国际会议

作者： Kai Chen Huiyu Liu Xiaosu Chen School of Computer Sci. & Tech. Huazhong Univ. of Sci. & Tech.

The low-rate denial of service (LDoS) attack is a new threat to Internet security. Due to its low rate and high concealment characteristics, LDoS attack is difficult to be detected through the analysis of attack flow directly. Most present methods primarily analysis network traffic or feature of LDoS flows to determine LDoS, but they cannot get the satisfactory outcome. From the phenomenon that TCP flow exhibits special different characteristics under LDoS attack and with the superiority of shewhart control chart in outlier detection, this paper proposes a real-time LDoS attack detection method based on shewhart control chart theory, and devises detection criterions based on abundant experiments. This detection method can detect LDoS attack accurately and effectively.

关键词： Low-rate denial of service shewhart control chart detection criterions

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Process Capability Analysis of Delivering Neonatal Care with Normal Weight （Case Study of Neonatal Weight Data at a Maternity Clinic in Banjarmasin）

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Journal of Life Sciences 2011年第12期5卷 996-1002页

作者： Dewi Anggraini Department of Mathematics Faculty of Mathematics and Natural Sciences University of Lambung Mangkurat Banjarmasin SouthKalimantan 70714 Indonesia

Statistical Quality control （SQC） is used to analyze and monitor quality characteristic measurements of normal neonatal weight in a maternity clinic in Banjarmasin in this paper. The objective of this study is to assist medical practitioners in observing pregnant women to deliver their babies with normal weight. It is also assumed that pregnant women who delivered their babies in the clinic have been monitored during their nine-month pregnancy. Thus, they can manage their own pregnancy to deliver normal weight babies. The use of Statistical Process control （SPC） tools, such as frequency histogram, probability plot, and the implementation of shewhart, R, and S control charts as primary techniques, are presented to display the monitoring aspects of the process. In addition, Process Capability Analysis （PCA） is performed to ensure that the process outcomes are capable of meeting certain requirements or specifications. The Process Capability Ratio （PCR） for the process is also presented. This analysis is an essential part of an overall quality improvement program.

关键词： Process capability analysis shewhart control chart R-chart normal neonatal weight.

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