Results 31 to 40 of about 255,284 (162)

Model Averaging Estimation Method by Kullback–Leibler Divergence for Multiplicative Error Model

open access: yesComplexity, 2022
In this paper, we propose the model averaging estimation method for multiplicative error model and construct the corresponding weight choosing criterion based on the Kullback–Leibler divergence with a hyperparameter to avoid the problem of overfitting ...
Wanbo Lu, Wenhui Shi
doaj   +1 more source

On accuracy of PDF divergence estimators and their applicability to representative data sampling [PDF]

open access: yes, 2011
Generalisation error estimation is an important issue in machine learning. Cross-validation traditionally used for this purpose requires building multiple models and repeating the whole procedure many times in order to produce reliable error estimates ...
Musial, Katarzyna   +6 more
core   +1 more source

Rényi Relative Entropy from Homogeneous Kullback-Leibler Divergence Lagrangian [PDF]

open access: yes, 2021
We study the homogeneous extension of the Kullback-Leibler divergence associated to a covariant variational problem on the statistical bundle. We assume a finite sample space.
Goffredo Chirco, Chirco G.
core   +1 more source

Guaranteed Bounds on Information-Theoretic Measures of Univariate Mixtures Using Piecewise Log-Sum-Exp Inequalities

open access: yesEntropy, 2016
Information-theoretic measures, such as the entropy, the cross-entropy and the Kullback–Leibler divergence between two mixture models, are core primitives in many signal processing tasks.
Frank Nielsen, Ke Sun
doaj   +1 more source

Some bounds for skewed α-Jensen-Shannon divergence

open access: yesResults in Applied Mathematics, 2019
Based on the skewed Kullback-Leibler divergence introduced in the natural language processing, we derive the upper and lower bounds on the skewed version of the Jensen-Shannon divergence and investigate properties of them.
Takuya Yamano
doaj   +1 more source

Model Fusion with Kullback--Leibler Divergence

open access: yesCoRR, 2020
We propose a method to fuse posterior distributions learned from heterogeneous datasets. Our algorithm relies on a mean field assumption for both the fused model and the individual dataset posteriors and proceeds using a simple assign-and-average approach.
Sebastian Claici   +3 more
openaire   +3 more sources

Interpreting Kullback-Leibler divergence with the Neyman-Pearson lemma [PDF]

open access: yes, 2006
Kullback-Leibler divergence and the Neyman-Pearson lemma are two fundamental concepts in statistics. Both are about likelihood ratios: Kullback-Leibler divergence is the expected log-likelihood ratio, and the Neyman-Pearson lemma is about error rates of ...
Copas, John B.   +2 more
core   +1 more source

Dynamic fine‐tuning layer selection using Kullback–Leibler divergence

open access: yesEngineering Reports, 2023
The selection of layers in the transfer learning fine‐tuning process ensures a pre‐trained model's accuracy and adaptation in a new target domain. However, the selection process is still manual and without clearly defined criteria. If the wrong layers in
Raphael Ngigi Wanjiku   +2 more
doaj   +1 more source

Generalizing the Alpha-Divergences and the Oriented Kullback–Leibler Divergences with Quasi-Arithmetic Means

open access: yesAlgorithms, 2022
The family of α-divergences including the oriented forward and reverse Kullback–Leibler divergences is often used in signal processing, pattern recognition, and machine learning, among others.
Frank Nielsen
doaj   +1 more source

Optimism in reinforcement learning and Kullback-Leibler divergence [PDF]

open access: yes2010 48th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2010
We consider model-based reinforcement learning in finite Markov De- cision Processes (MDPs), focussing on so-called optimistic strategies. In MDPs, optimism can be implemented by carrying out extended value it- erations under a constraint of consistency with the estimated model tran- sition probabilities. The UCRL2 algorithm by Auer, Jaksch and Ortner (
Sarah Filippi   +2 more
openaire   +3 more sources

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