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1 Ιαν 2004 · The goal of this paper is to summarize the various potential causes of extreme scores in a data set (e.g., data recording or entry errors, motivated mis-reporting, sampling errors, and...
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The goal of this paper is to summarize the various potential...
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1 Ιαν 2005 · We present several methods for outlier detection, while distinguishing between univariate vs. multivariate techniques and parametric vs. nonparametric procedures. In presence of outliers,...
1 Απρ 2013 · We offer guidelines, including decision-making trees, that researchers can follow to define, identify, and handle error, interesting, and influential (i.e., model fit and prediction) outliers.
28 Σεπ 2023 · In data analytics, outliers are values within a dataset that vary greatly from the others—they’re either much larger, or significantly smaller. Outliers may indicate variabilities in a measurement, experimental errors, or a novelty. In a real-world example, the average height of a giraffe is about 16 feet tall.
14 Ιαν 2013 · There are two types of influential outliers: (a) model fit outliers and (b) prediction outliers. Model fit outliers are data points whose presence alters the fit of a model, and prediction outliers are data points whose presence alters parameter estimates.
26 Αυγ 2019 · When using statistical indicators we typically define outliers in reference to the data we are using. We define a measurement for the “center” of the data and then determine how far away a point needs to be to be considered an outlier.
6 Ιουν 2021 · In statistics, an outlier is a data point that differs significantly from other observations. An outlier may be due to variability in the measurement or it may indicate experimental error; the latter are sometimes excluded from the data set. An outlier can cause serious problems in statistical analyses. Some Outlier Theory.
