Using VSI Loss Control Charts to Monitor a Process with Incorrect Adjustment

Optimal Variable Sample Size and Sampling Interval MSE Chart Based on Improved Square Root Transformation

“…For the adaptive approach in variable charts, it has been shown to give substantially faster detection of most process shifts than the traditional charts (see Bai and Lee, 2002;Costa, 1994Costa, , 1999Rahim, 2006, Costa andMagalhaes, 2007;Lina and Chou, 2005;Prabhu et al, 1994;Reynolds and Stoumbos, 2001;Yang and Chen, 2009;Yang and Rahim, 2005;Yang and Su, 2007;Yang et al, 2010;Wu et al, 2007;Zhang and Wu, 2006;Zimmer et al, 1998Zimmer et al, , 2000. For the traditional attributes charts, in the previous works, they are based on the conforming run length (CRL) to detect the out-of-control condition by checking the number of nonconforming unit or nonconformities in a sample (see Bourke, 1991Bourke, , 2001Kaminsky et al, 1992;Wu and Spedding, 2000;Wu et al, 2001a, b).…”

Monitoring and Diagnosing Process Loss Using a Weighted‐Loss Control Chart

“…To simultaneously monitor the process mean and variance, several studies of adaptive control charts have suggested using adaptive rather than fixed control schemes, and other studies have proposed double or single adaptive charts . To enhance the ability of the proposed single FSI WL chart to detect out‐of‐control loss, a variable sampling interval (VSI) control scheme is included in the WL chart.…”

A New EWMA Loss Control Chart with Adaptive Control Scheme

“…Recently, some new studies of single charts have been done; see, for example, Costa and Rahim [2], Wu and Tian [3], Wu, Tian, and Zhang [4], Zhang and Wu [5], Wu and Tian [6], Wu, Wang, and Wang [7], Hawkins and Deng [8], Li, Zhang, and Wang [9], Zhang, Zou, and Wang [10] , Khoo et al [11], Khoo, Teh and Wu [12], Zhou, Luo, and Wang [13], Huang and Chen [14], Zhang, Zou, and Wang [15], Ou, Wu, and Goh [16] Memar and Niaki [17], Teh, Khoo and Wu [18], Teh, Khoo and Wu [19] , Yang [20], Yang [21] and Yang and Lin [22] Several studies on the performance of adaptive control charts suggested the use of adaptive control schemes instead of the fixed control scheme. However, in recently ten years only a few studies proposed double adaptive charts or a single adaptive chart to monitor the process mean and the variance simultaneously (e.g., Park, Lee and Kim [23]; Wu, Tian, and Zhang [2]; Zhang and Wu [3]; Castagliola, Celano and Fichera [24]; Castagliola, Celano, Fichera and Giuffrida [25]; Costa and Magalh [26]; Yang and Chen [27]; Yang and Yang [28]; Yang and Yu [29]; Wu, Wang and Wang [5]; Prajapati and Mahapatra [30]; Yang [31]; Yang and Chen [32]; Yang, Ko and Yeh [33]).…”