Results 261 to 270 of about 2,374,152 (284)

Process trending with piecewise linear smoothing

Computers & Chemical Engineering, 1995
Abstract Compression and trending are techniques widely used in the initial treatment of raw process data. Two popular methods, Box Car with Backward Slope and Swinging Door, were reviewed recently by Kennedy. In spite of their popularity, neither of these methods are designed to cope with process variability and outliers.
R.S.H. Mah, A.C. Tamhane, S.H. Tung, A.N. Patel   +3 more
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Modeling Linear Trends in Audit Fees

International Journal of Auditing, 2013
This study uses repeated‐measures ANOVA design to examine linear trends in audit fees of US companies. Audit fee trends are analyzed across the effects of regulatory oversight, accelerated or non‐accelerated SOX filing status, and time (2002–2009). Accelerated filers showed stronger positive linear trends than did non‐accelerated filers for the entire ...
Daniel C. Coster, Drew Dahl, Richard L. Jenson   +2 more
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Testing change-points with linear trend

Communications in Statistics - Simulation and Computation, 1994
Tests based on rank statistics are introduced to test for systematic changes in a sequence of independent observations. Proposed tests include a rank test analogous to the parametric likelihood ratio test and others analogous to parametric Bayes tests.
N Sugiura, R. T Ogden
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A‐OPTIMAL RUN ORDERS WITH A LINEAR TREND

Australian Journal of Statistics, 1994
SummaryA‐optimal ran orders are considered in the presence of a linear trend with emphasis on non‐orthogonal situations where no trend‐free run order can be. A‐optimal. Some possibilities for further extension are also briefly indicated.
Mukerjee, Rahul, Sengupta, S.
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Order statistics under linear trend

2018
Order statistics and linear functions of order statistics are frequently used as estimators of location and scale. The moments of order statistics have been tabled for many commonly used distributions under assumptions of independence and identical distribution. Applications of estimators based on the order statistics have spread to situations in which
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Piecewise-linear trend detection in longitudinal physiological measurements

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
Recently, telecare solutions have been demonstrated as an effective means of monitoring chronic disease at a distance. A clinician may be managing many tens or hundreds of remote patients, prompting the need for a decision support system (DSS) to provide a more automated approach to managing these vast amounts of data.
Stephen J, Redmond, Jim, Basilakis, Yang, Xie, Branko G, Celler, Nigel H, Lovell   +4 more
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Optimal Systematic Sampling When Sample Size is Odd in the Presence of Linear Trend and Two-Way Linear Trend

Sankhya A, 2019
Earlier research showed that when there is a linear trend in the values of the study variable, balanced systematic sampling technique is optimum for the estimation of the population mean of the variate, when the sample size is even. Further, diagonal systematic sampling makes the sampling trend free when the population size is a perfect square of the ...
Mukherjee, Aritra, Singh, Abhishek
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Minimum Cost Linear Trend Free Fractional Factorial Designs

Journal of Statistical Theory and Practice, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Stochastic Linear Trends: Models and Estimators

2005
Abstract The concept of a trend component (in short, a trend) in an economic time series is far from having a precise, universally accepted, definition. Trends have been modeled as deterministic functions of time (see, for example, Fellner 1956), as purely stochastic processes (in economics, a standard reference is Nelson and Plosser ...
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LINEAR TREND TEST VERSUS GLOBAL TEST: A COMPARISON

Statistica Neerlandica, 1986
AbstractFor the I–sample problem, the classical global tests on treatment differences are compared with the respective trend tests both in the parametric and nonparametric case using a comparison criterion closely related to the concept of asymptotic relative Pitman efficiency.
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