Results 21 to 30 of about 338,331 (240)

Unveiling the Connectivity of Complex Networks Using Ordinal Transition Methods

Entropy, 2023
Ordinal measures provide a valuable collection of tools for analyzing correlated data series. However, using these methods to understand information interchange in the networks of dynamical systems, and uncover the interplay between dynamics and ...
Juan A. Almendral, I. Leyva, Irene Sendiña-Nadal   +2 more
doaj   +1 more source

Feature Extraction of Ship-Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

Entropy, 2016
In order to solve the problem of feature extraction of underwater acoustic signals in complex ocean environment, a new method for feature extraction from ship-radiated noise is presented based on empirical mode decomposition theory and permutation ...
Yu-Xing Li, Ya-An Li, Zhe Chen, Xiao Chen   +3 more
doaj   +1 more source

Permutation inference for the general linear model [PDF]

, 2014
Permutation methods can provide exact control of false positives and allow the use of non-standard statistics, making only weak assumptions about the data.
Winkler, Anderson, Ridgway, Gerard, Nichols, Thomas E, Smith, Stephen, Webster, Matthew A, Nichols, Thomas E., Smith, Stephen M, Smith, Stephen M., Ridgway, Gerard R, Winkler, Anderson M., Webster, Matthew A., Ridgway, Gerard R., Webster, MA, Nichols, TE   +13 more
core   +1 more source

Generalized Weighted Permutation Entropy

, 2022
A novel heuristic approach is proposed here for time series data analysis, dubbed Generalized weighted permutation entropy, which amalgamates and generalizes beyond their original scope two well established data analysis methods: Permutation entropy, and
Borko Stosic, Dusan Stosic, Stosic, Dusan, Stosic, Darko, Tatijana Stosic, Stosic, Tatijana, Stosic, Borko, Darko Stosic   +7 more
core   +1 more source

Permutation Entropy for Graph Signals [PDF]

, 2022
Entropy metrics (for example, permutation entropy) are nonlinear measures of irregularity in time series (one-dimensional data). Some of these entropy metrics can be generalised to data on periodic structures such as a grid or lattice pattern (two ...
Tan, Chao, Fabila Carrasco, John Stewart, Escudero, Javier; id_orcid   +2 more
core   +1 more source

Measuring the complexity of securities’ time series in VN30 index: A permutation entropy approach

Tạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kinh tế và Quản trị kinh doanh, 2020
The paper applies the Bandt and Pompe (2002) method to measure the complexity of daily close price and daily return of VN30’s stocks during the period from January 2000 to August 2018.
Trần Thị Tuấn Anh
doaj   +1 more source

Entropy increase in switching systems [PDF]

, 2013
The relation between the complexity of a time-switched dynamics and the complexity of its control sequence depends critically on the concept of a non-autonomous pullback attractor.
Giménez, Ángel, Peter E. Kloeden, Amigó, José M., Kloeden, Peter E., Ángel Giménez, José Amigó, José M. Amigó, Peter Kloeden   +7 more
core   +1 more source

Gearbox Fault Diagnosis Method Based on Improved Multi-Scale Mean Permutation Entropy and Parameter Optimization SVM

Jixie chuandong, 2023
When a gearbox transmission system fails, the multi-scale mean permutation entropy (MMPE) of different vibration signals corresponds to the fault state to a certain extent.
Guo Panpan, Zhang Wenbin, Cui Ben, Xu Han   +3 more
doaj  

Generalized permutation patterns - a short survey [PDF]

, 2010
An occurrence of a classical pattern p in a permutation π is a subsequence of π whose letters are in the same relative order (of size) as those in p.
Steingrimsson, Einar
core   +3 more sources

Permutation Complexity and Coupling Measures in Hidden Markov Models

Entropy, 2013
Recently, the duality between values (words) and orderings (permutations) has been proposed by the authors as a basis to discuss the relationship between information theoretic measures for finite-alphabet stationary stochastic processes and their ...
Taichi Haruna, Kohei Nakajima
doaj   +1 more source