Search Results - "Quinino, Roberto Costa"

An attribute control chart for monitoring the variability of a process by Lee Ho, Linda, Quinino, Roberto Costa

“…Recently, Wu et al. (2009) proposed the use of an npx chart to monitor a process mean by attribute inspection as an alternative to the use of an X¯ chart…”
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Estimators of parameters of a mixture of three multinomial distributions based on simple majority results by de Morais, Ricardo Saldanha, Quinino, Roberto da Costa, Suyama, Emilio, Ho, Linda Lee

“…For assessing the precision of measurement systems that classify items dichotomically with the possibility of repeated ratings, the maximum likelihood method…”
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Diagnostic errors and repetitive sequential classifications in on-line process control by attributes by Costa Quinino, Roberto da, Colin, Emerson C., Ho, Linda Lee

“…The procedure of on-line process control by attributes, known as Taguchi’s on-line process control, consists of inspecting the mth item (a single item) at…”
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Klein's supplementary runs rules on X¯$\overline{X}$ chart to control the mean of a Weibull random variable by Ho, Linda Lee, Quinino, Roberto Costa, Fernandes, Fidel Henrique, Bourguignon, Marcelo

“…Most of the papers found in the literature concerned monitoring a process mean of a quality characteristic normally distributed. However, in several practical…”
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The use of npx$np_{x}$‐type attribute charts to monitor the variance by Silva, Leandro Alves da, Ho, Linda Lee, Quinino, Roberto Costa

“…First, the npx$np_x$‐type attribute control charts have been proposed to monitor the process mean. The main contribution of this paper is to show the good…”
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An approach for improvements on the attribute npx$np_x$ control chart by Silva, Leandro Alves da, Ho, Linda Lee, Quinino, Roberto Costa

“…This paper proposes an attribute control chart named npx(I)μ$np_{x(I)}^{\mu }$ which is used for monitoring the process mean value of a variable (X) by…”
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Estimation in X-bar control charts: effects and corrections by da Costa Quinino, Roberto, Lee Ho, Linda, Trindade, Anderson Laécio Galindo

“…This paper presents an approach for improving the control limits of X ¯ control charts when the parameters of the process are estimated and the control chart…”
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Markov Chain approach to get control limits for a Shewhart Control Chart to monitor the mean of a Discrete Weibull distribution by Alves da Silva, Leandro, Lee Ho, Linda, da Costa Quinino, Roberto

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The need to conduct repeated classifications in a logistic regression model with misclassification in the dependent variable by de Oliveira Valadares, Danilo Gilberto, Costa Quinino, Roberto, Carvalho Pires, Magda

“…Maximum likelihood estimators for the logistic regression model with misclassification in the response variable are extremely biased when error probabilities…”
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Monitoring the conforming fraction of high-quality processes using a control chart p under a small sample size and an alternative estimator by Ho, Linda Lee, da Costa Quinino, Roberto, Suyama, Emílio, Lourenço, Ruth Pereira

“…In this paper, we propose to change the traditional monitored statistic in a control chart p , by changing the sampling proportion to a new statistics denoted…”
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Improving the performance of the attribute charts: X¯tn$\bar{X}_{tn}$ and Stn2$S^2_{tn} by Yamauchi, Tsubasa, Lee Ho, Linda, da Costa Quinino, Roberto

“…Summary This paper proposes a procedure to improve the performance for the attribute control charts: X¯tn$\bar{X}_{tn}$ and Stn2$S^2_{tn}$. In these control…”
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Combining attribute and variable data to monitor process variability: MIX S2 control chart by Ho, Linda Lee, da Costa Quinino, Roberto

“…The necessity to monitor process variability to maintain similar, but more economical, performance to that of the S 2 control chart in terms of ARL 1 is the…”
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A multiobjective optimization model for machining quality in the AISI 12L14 steel turning process using fuzzy multivariate mean square error by Daroz Gaudêncio, Juliana Helena, de Almeida, Fabrício Alves, Turrioni, João Batista, da Costa Quinino, Roberto, Balestrassi, Pedro Paulo, de Paiva, Anderson Paulo

“…Organizations focus on determining optimal operating conditions to ensure quality; however, industrial processes exhibit a high degree of variability and the…”
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Combining attribute and variable data to monitor process variability: MIX S 2 control chart by Ho, Linda Lee, da Costa Quinino, Roberto

“…The necessity to monitor process variability to maintain similar, but more economical, performance to that of the S2 control chart in terms of ARL1 is the…”
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Videokymographic index of glottic function: an analysis of diagnostic accuracy by Deus, Alice Braga de, Quinino, Roberto da Costa, Santos, Marco Aurélio Rocha, Gama, Ana Cristina Côrtes

“…To develop the Videokymographic Index of Glottic Function (VIGF), a composite indicator from digital videokymography parameters, captured by high-speed…”
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Monitoring the process mean based on attribute inspection when a small sample is available by da Costa Quinino, Roberto, Lee Ho, Linda, Galindo Trindade, Anderson Laécio

“…This paper proposes a new control chart, denoted by to evaluate the stability of a process mean when a small sample is available. This chart is based on…”
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Inferences in dichotomous classifications with misclassifications based on sequential repetitive classifications by de Morais, Ricardo Saldanha, da Costa Quinino, Roberto, Suyama, Emílio, Ho, Linda Lee

“…To create inferences in dichotomous classifications with misclassifications and possibly perform repeated classifications, the maximum likelihood method is…”
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Bayesian judgment of a dichotomous inspection system when the true state of an evaluated item is unknown by Quinino, Roberto da Costa, Ho, Linda Lee, Trindade, Anderson L.G.

“…In the quality control of attributes, the evaluation of conforming items is an important task. An inspection system, in a general sense, is not free of errors…”
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The Variable Sampling Interval (VSI) in an Analysis of Taguchi's On-line Quality Monitoring Procedure for Variables by Ho, Linda Lee, Da Costa Quinino, Roberto

“…The procedure of on-line process control for variables proposed by Taguchi consists of inspecting the mth item (a single item) of every m items produced and…”
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Alternative estimator for the parameters of a mixture of two binomial distributions by Quinino, Roberto da Costa, Ho, Linda Lee, Suyama, Emílio

“…The method of moments has been widely used as a simple alternative to the maximum likelihood method, mainly because of its efficiency and simplicity in…”
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