Results 11 to 20 of about 2,780,395 (295)
Statistical Sources of Variable Selection Bias in Classification Tree Algorithms Based on the Gini Index [PDF]
Evidence for variable selection bias in classification tree algorithms based on the Gini Index is reviewed from the literature and embedded into a broader explanatory scheme: Variable selection bias in classification tree algorithms based on the Gini ...
Strobl, Carolin
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Aims: Early large treatment effects can arise in small studies, which lessen as more data accumulate. This study aimed to retrospectively examine whether early treatment effects occurred for two multicentre orthopaedic randomized controlled trials (RCTs)
Catherine N. Knowlson +4 more
doaj +1 more source
Variable Selection Bias in Classification Trees Based on Imprecise Probabilities [PDF]
Classification trees based on imprecise probabilities provide an advancement of classical classification trees. The Gini Index is the default splitting criterion in classical classification trees, while in classification trees based on imprecise ...
Strobl, Carolin
core +3 more sources
Natural selection. III. Selection versus transmission and the levels of selection [PDF]
George Williams defined an evolutionary unit as hereditary information for which the selection bias between competing units dominates the informational decay caused by imperfect transmission.
Frank, Steven A.
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Present day low participation rates in certain parts of research is concerning. It is not unusual that half (or even more) of those invited to participate in a research project decline the invitation.
Jørn Olsen
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Scientific Research or Advocacy? Emotive Labels and Selection Bias Confound Survey Results
Robert Costanza presents four compelling visions of the future, but the language he uses to describe them is emotive and value-laden and may bias the survey results.
Jerome K. Vanclay
doaj +1 more source
Approaches to canine health surveillance [PDF]
Effective canine health surveillance systems can be used to monitor disease in the general population, prioritise disorders for strategic control and focus clinical research, and to evaluate the success of these measures.
Brodbelt, D C +5 more
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FC Barcelona is a multi-sport organization that adopts a talent identification approach that emphasizes the technical, psychological, and perceptual–cognitive attributes. It is unclear within this type of sporting selection model whether the relative age
Greg Doncaster +4 more
doaj +1 more source
Residential energy efficiency programs play an important role in combating climate change. More precise quantification of the magnitude and timing of energy savings would bring large system benefits, allowing closer integration of energy efficiency into ...
Evan D. Sherwin +2 more
doaj +1 more source
Accounting for biases in survey-based estimates of population attributable fractions
Background This paper discusses best practices for estimating fractions of mortality attributable to health exposures in survey data that are biased by observed confounders and unobserved endogenous selection.
Ryan Masters, Eric Reither
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