Stepwise Regression and Stepwise Discriminant Analysis Need Not Apply here: A Guidelines Editorial
نویسندگان
چکیده
منابع مشابه
Stepwise Nearest Neighbor Discriminant Analysis
Linear Discriminant Analysis (LDA) is a popular feature extraction technique in statistical pattern recognition. However, it often suffers from the small sample size problem when dealing with the high dimensional data. Moreover, while LDA is guaranteed to find the best directions when each class has a Gaussian density with a common covariance matrix, it can fail if the class densities are more ...
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Given data y and k covariates x one problem in linear regression is to decide which in any of the covariates to include when regressing y on the x. If k is small it is possible to evaluate each subset of the x. If however k is large then some other procedure must be use. Stepwise regression and the lasso are two such procedures but they both assume a linear model with error term. A different ap...
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I consider unsupervised extensions of the fast stepwise linear regression algorithm [5]. These extensions allow one to efficiently identify highly-representative feature variable subsets within a given set of jointly distributed variables. This in turn allows for the efficient dimensional reduction of large data sets via the removal of redundant features. Fast search is effected here through th...
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ideas themselves are un-patentable "as they are the basic tools of scientific and technological work,"58 useful applications of these tools may be patent-eligible. A claim to a process that uses a natural law must "also contain other elements or a combination of elements, sometimes referred to as an 'inventive concept,' sufficient to ensure that the patent in practice amounts to 55 See supra no...
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The main focus of research in machine learning and statistics is on building more advanced and complex models. However, in practice it is often much more important to use the right variables. One may hope that recent popularity of open data would allow researchers to easily find relevant variables. However current linked data methodology is not suitable for this purpose since the number of matc...
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ژورنال
عنوان ژورنال: Educational and Psychological Measurement
سال: 1995
ISSN: 0013-1644,1552-3888
DOI: 10.1177/0013164495055004001