Clusters of nosocomial infection often occur undetected, at substantial cost to the medical system and individual patients. We evaluated binary cumulative sum (CUSUM) and moving average (MA) control charts for automated detection of nosocomial clusters. We selected two outbreaks with genotyped strains and used resistance as inputs to the control charts. We identified design parameters for the C...

The multi-chart consists of several CUSUM or EWMA charts with different reference values that are used simultaneously to detect anticipated process changes. We not only prove that the chart can quickly achieve the asymptotic optimal bound, but also give an integral equation to determine the reference values to arrive at optimality. Simulation results are used to verify the theoretical optimal p...

The problem of detecting linear attacks on industrial systems is presented in this paper. object attacked by attack the wireless communication process from sensors to controller with simulated mathematical model (stochastic dynamical and random noises). matrices are calculated ensure that Kullback-Leiber (K-L) algorithm passed. With these matrices, window limited cumulative SUM (WL-CUSUM) finit...

In this research, we propose the new mixed control chart called Moving Average-Cumulative Sum (MA-CUSUM) used for monitoring parameter changes in asymmetrical and symmetrical processes. Its efficiency was compared with that of Shewhart, Cumulative (CUSUM), Average (MA), Sum-Moving (CUSUM-MA) charts by using their average run lengths (ARLs), standard deviation length (SDRL), median (MRL) via Mon...

Hanan Selman Hessan and Ahmed Mohammed Abbas 563 Abstract Immune status was examined after tonsillectomy operations in 30 children with recurrent acute tonsillitis, their ages ranged between 3-10 years, were clinically diagnosed by ENT surgeon at AlHilla General Teaching Hospital and 10 apparently healthy children were included as a control in the study which lasted from February to May 2011 .I...

When data consist of patients with a specific risk to develop an health event and we are interested in monitoring the incidence rate of this event, the standard Bernoulli CUSUM fails and a risk-adjustment needs. The risk-adjusted CUSUM chart proposed by Steiner et al. (2000) shows some limitations. To overcome these limits a simple risk-adjusted CUSUM is proposed and it may be considered a gene...

A theoretical analysis of the cumulative sum (CUSUM) technique for detecting a series of time signals from noisy background is provided. The statistic using CUSUM-slope is introduced as a measure for capturing the average of signals within the time-window, in which the slope is computed. This provides a time-independent method for estimating the signal content within the time-window. The detect...

In this paper we consider the problem of testing for a parameter change in GARCH(1,1) models based on the residual cusum test. The test appears to circumvent the drawbacks, such as size distortions and low powers of the cusum of squares test proposed by Kim, Cho and Lee (2000). It is shown that the proposed test statistic has a limiting distribution of the sup of a standard Brownian bridge. A s...

هديکچ ت یحارط یارب ديدج شور کي هلاقم نيا رد تيوق ارا یطخ زاف اب هدرتسگ هدننک ئ يم ه دوش . شور نيا تيوقت و لاسروسنارت لاتيجيد رتليف یژولوپوت نيب تهابش یانبم رب يم هدرتسگ هدننک دشاب . نيا یانبم رب رواجم هقبط ود نيب ريخات رادقم و هدننک تيوقت زا هقبط ره نيگ یژولوپوت رتليف هيروف طسب زا هدافتسا اب Raise Cosine يم نييعت یروط یسناکرف هلصاف رد هک دوش 0-40 GHz تيوقت یطخ زاف هصخشم یاراد هدننک دشاب ه...