Results 31 to 40 of about 577,532 (155)

Examining Oil Prices for Chaos, Entropy, Fractionality and Complexity, and Modeling the Impacts of Economic Policy Uncertainty and Geopolitical Risks: GARCH–MIDAS–LSTM Approach

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
As the leading energy source, oil price volatility has crucial effects in energy markets, and geopolitical risks (GPRs) and economic policy uncertainties contribute to its volatility. Further, chaos, long‐range dependence, fractionality, and complexity significantly reduce modeling and forecast performances.
Özgür Ömer Ersin, Melike Bildirici, Rajashik Paul   +2 more
wiley   +1 more source

Special Issue: Tsallis Entropy

, 2012
One of the crucial properties of the Boltzmann-Gibbs entropy in the context of classical thermodynamics is extensivity, namely proportionality with the number of elements of the system.
Anastasios Anastasiadis
core   +1 more source

Tsallis Entropy for Geometry Simplification [PDF]

, 2011
This paper presents a study and a comparison of the use of different information-theoretic measures for polygonal mesh simplification. Generalized measures from Information Theory such as Havrda–Charvát–Tsallis entropy and mutual information have been ...
González, Carlos, Mateu Sbert, Carlos González, Miguel Chover, Pascual Castelló, Feixas Feixas, Miquel, Feixas, Miguel, Castelló Boscá, Pascual, González Ballester, Carlos, Miquel Feixas, Sbert Casasayas, Mateu, Sbert, Mateu, Castelló, Pascual, Chover, Miguel   +13 more
core   +1 more source

Comprehensive Characterizations, Information Measures, and Reliability Applications for the Yun–Linear Exponential Lifetime Model

Axioms
We propose the three-parameter Yun–Linear Exponential (YLE) distribution, with a specific focus on its comprehensive characterizations based on truncated moments, hazard functions, and conditional expectations.
Sabna Kuttiprath, Hassan S. Bakouch, Faridah Alruwaili, Girish Babu Moolath   +3 more
doaj   +1 more source

Artificial intelligence‐assisted theranostics for brain tumors: Advancements and future perspectives

VIEW, Volume 6, Issue 6, December 2025.
Graphical demonstration of different applications of AIT for brain tumor. The major applications include CT and MRI‐based segmentation and analysis, histopathological analysis, precision treatment planning and prognosis, surgical and radiotherapy optimization, real‐time intratreatment monitoring, biomarker discovery, and molecular profiling for ...
Mifang Li, Lingyan Zhang, Zia Ullah, Yinghe Zhang, Shengxue Wei, Lihe Huang, Bing Guo   +6 more
wiley   +1 more source

Is Tsallis thermodynamics nonextensive? [PDF]

, 2001
Within the Tsallis thermodynamics framework, and using scaling properties of the entropy, we derive a generalization of the Gibbs-Duhem equation. The analysis suggests a transformation of variables that allows standard thermodynamics to be recovered ...
ADROVER, Alessandra, Vives i Santa-Eulàlia, Eduard, Shen, SQ, Adrover, A., Xie, XC, Zhang, FC, GIONA, Massimiliano, CERBELLI, Stefano, Cerbelli, S., Planes Vila, Antoni, Giona, M., Brox, O., Henneberger, F., Radziunas, M., Wünsche, H.J., M. Giona, A. Adrover, S. Cerbelli   +17 more
core   +1 more source

Navigating Uncertainty in an Emerging Market: Data-Centric Portfolio Strategies and Systemic Risk Assessment in the Johannesburg Stock Exchange

International Journal of Financial Studies
This study investigates systemic risk, return patterns, and diversification within the Johannesburg Stock Exchange (JSE) during the COVID-19 pandemic, utilizing data-centric approaches and the ARMA-GARCH vine copula-based conditional value-at-risk (CoVaR)
John W. M. Mwamba, Jules C. Mba, Anaclet K. Kitenge   +2 more
doaj   +1 more source

Entropy in Hydrology

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Although the concept of thermodynamic entropy due to Clausius dates back to the early 1850s, the mathematical theory of informational entropy was not developed until the pioneering work of Shannon in 1948, the development of principle of maximum entropy (POME) and theorem of concentration by Jaynes in 1957, principle of minimum cross entropy ...
Vijay P. Singh
wiley   +1 more source

Generalized Shannon inequalities based on Tsallis relative operator entropy [PDF]

, 2005
Tsallis relative operator entropy is defined and then its properties are given. Shannon inequality and its reverse one in Hilbert space operators derived by Furuta [Linear Algebra Appl.
Furuichi, Shigeru, 栗山, 憲, 柳, 研二郎   +2 more
core  

Nonextensive triangle equality and other properties of Tsallis relative-entropy minimization [PDF]

, 2006
Kullback-Leibler relative-entropy has unique properties in cases involving distributions resulting from relative-entropy minimization. Tsallis relative-entropy is a one-parameter generalization of Kullback-Leibier relative-entropy in the nonextensive ...
Dukkipati, Ambedkar, Bhatnagar, Shalabh, Murty, Narasimha M, Murty, M. Narasimha   +3 more
core   +1 more source