Results 11 to 20 of about 2,981,303 (285)

Lempel–Ziv Complexity, Empirical Entropies, and Chain Rules

open access: yesIEEE Transactions on Information Theory
We derive upper and lower bounds on the overall compression ratio of the 1978 Lempel-Ziv (LZ78) algorithm, applied independently to $k$ -blocks of a finite individual sequence.
N. Merhav
semanticscholar   +3 more sources

The sustainability of recreational sports in Chinese cities based on cognitive entropy. [PDF]

open access: yesPLoS ONE
With progress of science and development of economy, increasing numbers of urban residents take part in recreational sports (RS) due to their more leisure time and increased income.
Xuefang Zou   +4 more
doaj   +2 more sources

Dimension-Free Empirical Entropy Estimation

open access: yesIEEE Transactions on Information Theory, 2023
We seek an entropy estimator for discrete distributions with fully empirical accuracy bounds. As stated, this goal is infeasible without some prior assumptions on the distribution. We discover that a certain information moment assumption renders the problem feasible. We argue that the moment assumption is natural and, in some sense, {\em minimalistic} -
Doron Cohen 0002   +3 more
openaire   +3 more sources

Calculation of absolute molecular entropies and heat capacities made simple

open access: yesChemical Science, 2021
We propose a fully-automated composite scheme for the accurate and numerically stable calculation of molecular entropies by efficiently combining density-functional theory (DFT), semi-empirical methods (SQM), and force-field (FF) approximations.
Philipp Pracht, S. Grimme
semanticscholar   +1 more source

Chernoff-Type Concentration of Empirical Probabilities in Relative Entropy [PDF]

open access: yesIEEE Transactions on Information Theory, 2021
corrected a numerical ...
F. Richard Guo   +1 more
openaire   +2 more sources

Generalized weighted survival and failure entropies and their dynamic versions [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2020
Generalized weighted survival and failure entropies of order ( ) are proposed and their properties are obtained. We further propose the dynamic versions of weighted generalized survival and failure entropies and obtain some properties and bounds ...
Siddhartha Chakraborty, B. Pradhan
semanticscholar   +1 more source

Effect of d-Dimensional Re-orderings on Lossless Compression of Radio-Astronomy and Digital Elevation Data

open access: yesIEEE Access, 2021
For multidimensional data, Space-Filling Curves (SFCs) have been used to improve the execution time of spatial data queries. However, their effect on compression, when used to reorder the uncompressed values, is known to a lesser extent.
Conrad J. Haupt   +2 more
doaj   +1 more source

A Robust Machine Learning Model for Diabetic Retinopathy Classification

open access: yesJournal of Imaging, 2023
Ensemble learning is a process that belongs to the artificial intelligence (AI) field. It helps to choose a robust machine learning (ML) model, usually used for data classification.
Gigi Tăbăcaru   +3 more
doaj   +1 more source

Empirical entropy, minimax regret and minimax risk [PDF]

open access: yesBernoulli, 2017
We consider the random design regression model with square loss. We propose a method that aggregates empirical minimizers (ERM) over appropriately chosen random subsets and reduces to ERM in the extreme case, and we establish sharp oracle inequalities for its risk. We show that, under the $\varepsilon^{-p}$ growth of the empirical $\varepsilon$-entropy,
Rakhlin, Alexander   +2 more
openaire   +4 more sources

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