Results 41 to 50 of about 19,326 (285)

EMPIRICAL COPULAS FOR CDO TRANCHE PRICING USING RELATIVE ENTROPY [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2007
We discuss the general optimization problem of choosing a copula with minimum entropy relative to a specified copula and a computationally intensive procedure to solve its dual. These techniques are applied to constructing an empirical copula for CDO tranche pricing.
MICHAEL A. H. DEMPSTER   +2 more
openaire   +3 more sources

Bootstrap methods for the empirical study of decision-making and information flows in social systems [PDF]

open access: yes, 2013
: We characterize the statistical bootstrap for the estimation of information theoretic quantities from data, with particular reference to its use in the study of large-scale social phenomena.
DeDeo, Simon   +3 more
core   +3 more sources

Criticality in Pareto Optimal Grammars?

open access: yesEntropy, 2020
What are relevant levels of description when investigating human language? How are these levels connected to each other? Does one description yield smoothly into the next one such that different models lie naturally along a hierarchy containing each ...
Luís F Seoane, Ricard Solé
doaj   +1 more source

Entropy of Financial Time Series Due to the Shock of War

open access: yesEntropy, 2023
The concept of entropy is not uniquely relevant to the statistical mechanics but, among others, it can play pivotal role in the analysis of a time series, particularly the stock market data.
Ewa A. Drzazga-Szczȩśniak   +3 more
doaj   +1 more source

Image Similarity Metrics in Image Registration [PDF]

open access: yes, 2010
Measures of image similarity that inspect the intensity probability distribution of the images have proved extremely popular in image registration applications. The joint entropy of the intensity distributions and the marginal entropies of the individual
Hawkes, DJ, Melbourne, A, Ridgway, G
core   +1 more source

Empirical Considerations of Entropy. II. The Entropies of Inorganic Complex Ions [PDF]

open access: yesThe Journal of Chemical Physics, 1953
A method is proposed by which the partial molal entropies of aqueous complex ions can be correlated in a simple manner as a function of the ratio of their charge to interatomic distance. The agreement obtained between the observed values and those calculated by this method has been shown to be within the accuracy of the experimental data.
openaire   +2 more sources

Convergence of Smoothed Empirical Measures With Applications to Entropy Estimation [PDF]

open access: yesIEEE Transactions on Information Theory, 2020
This paper studies convergence of empirical measures smoothed by a Gaussian kernel. Specifically, consider approximating $P\ast\mathcal{N}_ $, for $\mathcal{N}_ \triangleq\mathcal{N}(0, ^2 \mathrm{I}_d)$, by $\hat{P}_n\ast\mathcal{N}_ $, where $\hat{P}_n$ is the empirical measure, under different statistical distances.
Ziv Goldfeld   +3 more
openaire   +3 more sources

Fault Diagnosis of Planetary Gear Based on Fuzzy Entropy of CEEMDAN and MLP Neural Network by Using Vibration Signal

open access: yesITM Web of Conferences, 2017
A method of planetary gear fault diagnosis based on the fuzzy entropy of complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and multi-layer perceptron (MLP) neural network is proposed.
Chen Xi-Hui   +3 more
doaj   +1 more source

Large deviation principles for empirical measures of colored random graphs

open access: yes, 2010
For any finite colored graph we define the empirical neighborhood measure, which counts the number of vertices of a given color connected to a given number of vertices of each color, and the empirical pair measure, which counts the number of edges ...
Doku-Amponsah, Kwabena, Mörters, Peter
core   +1 more source

CATION DIFFUSION IN ALKALINE-EARTH OXIDES [PDF]

open access: yes, 1987
Absolute jump rates for cation-vacancy interchanges in MgO, CaO, SrO and BaO are calculated from a set of model inter-ionic potentials. Internal energies and vibrational entropies over a wide range of temperatures (i.e.
HARDING, JH, SANGSTER, MJL, STONEHAM, AM
core   +1 more source

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