Results 21 to 30 of about 2,907,167 (317)

Analysis of relative abundances with zeros on environmental gradients: a multinomial regression model. [PDF]

open access: yesPeerJ, 2018
Ecologists often analyze relative abundances, which are an example of compositional data. However, they have made surprisingly little use of recent advances in the field of compositional data analysis.
Chong F, Spencer M.
europepmc   +2 more sources

Nuclear penalized multinomial regression with an application to predicting at bat outcomes in baseball. [PDF]

open access: yesStat Modelling, 2018
We propose the nuclear norm penalty as an alternative to the ridge penalty for regularized multinomial regression. This convex relaxation of reduced-rank multinomial regression has the advantage of leveraging underlying structure among the response ...
Powers S, Hastie T, Tibshirani R.
europepmc   +3 more sources

Multiclass Classification by Sparse Multinomial Logistic Regression [PDF]

open access: yesIEEE Transactions on Information Theory, 2021
In this paper we consider high-dimensional multiclass classification by sparse multinomial logistic regression. We propose first a feature selection procedure based on penalized maximum likelihood with a complexity penalty on the model size and derive the nonasymptotic bounds for misclassification excess risk of the resulting classifier.
Felix Abramovich   +2 more
openaire   +4 more sources

Comparing methods for risk prediction of multicategory outcomes: dichotomized logistic regression vs. multinomial logit regression [PDF]

open access: goldBMC Medical Research Methodology
Background Medical outcomes of interest to clinicians may have multiple categories. Researchers face several options for risk prediction of such outcomes, including dichotomized logistic regression and multinomial logit regression modeling.
Lei Li   +3 more
doaj   +2 more sources

Multinomial logistic regression method for early detection of autism spectrum disorders

open access: yesMeasurement: Sensors
A child with autism spectrum syndrome may have diverse personality traits, making it a heterogeneous condition, with cognitive abilities, emotional types, and so on.
D. Jayaprakash, C.S. Kanimozhiselvi
doaj   +2 more sources

Approximate Sparse Multinomial Logistic Regression for Classification

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2020
We propose a new learning rule for sparse multinomial logistic regression (SMLR). The new rule is the generalization of the one proposed in the pioneering work by Krishnapuram et al. In our proposed method, the parameters of SMLR are iteratively estimated from log-posterior by using some approximations.
K. Kayabol
openaire   +4 more sources

Analysis of genomic signatures in prokaryotes using multinomial regression and hierarchical clustering [PDF]

open access: goldBMC Genomics, 2009
Background Recently there has been an explosion in the availability of bacterial genomic sequences, making possible now an analysis of genomic signatures across more than 800 hundred different bacterial chromosomes, from a wide variety of environments ...
Skjerve Eystein   +2 more
doaj   +2 more sources

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