Results 51 to 60 of about 586,238 (144)

Are Foreshocks Fore‐Shocks?

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.
Abstract Foreshocks are spatially clustered seismic events preceding large earthquakes. Since the dawn of seismology, their occurrence has been identified as a possible mechanism leading to further crustal destabilization, hence, to major failures. However, several cases occurred without any previous anomalous seismic activity, so that the hypothesis ...
Davide Zaccagnino, Filippos Vallianatos, Georgios Michas, Luciano Telesca, Carlo Doglioni   +4 more
wiley   +1 more source

A Proposed Novel Approach in Estimation of Unbiased Community Rarity Using the Locked Matrix and Tsallis Entropy

The present study offers a new approach to measure unbiased rarity at the community level r q* . In this approach, the locked data matrix (matrix H) and the survey data matrix of the communities (matrix A) play the essential roles.
Kürşad Özkan
core   +1 more source

Network Intrusion Detection Using Knapsack Optimization, Mutual Information Gain, and Machine Learning

Journal of Electrical and Computer Engineering, Volume 2024, Issue 1, 2024.
The security of communication networks can be compromised through both known and novel attack methods. Protection against such attacks may be achieved through the use of an intrusion detection system (IDS), which can be designed by training machine learning models to detect cyberattacks.
Akindele S. Afolabi, Olubunmi A. Akinola, Kusum Verma   +2 more
wiley   +1 more source

Models for time-varying moments using maximum entropy applied to a generalized measure of volatility [PDF]

We use an information-theoretic approach to interpret Engle's (1982) and Bollerslev's (1986) GARCH model as a model for the motion in time of the expected conditional second power moment.
Herrmann, Klaus
core  

Nonadditive entropy reconciles the area law in quantum systems with classical thermodynamics

, 2008
The Boltzmann-Gibbs-von Neumann entropy of a large part (of linear size L) of some (much larger) d-dimensional quantum systems follows the so-called area law (as for black holes), i.e., it is proportional to Ld-1.
Caruso F, Tsallis C
core  

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 and Generalized Shannon Additivity

, 2017
The Tsallis entropy given for a positive parameter α can be considered as a generalization of the classical Shannon entropy. For the latter, corresponding to α = 1 , there exist many axiomatic characterizations. One of them based on the well-
Sonja Jäckle, Karsten Keller
core   +1 more source

Continuity inequalities for sandwiched Rényi and Tsallis conditional entropies with application to the channel entropy continuity

Journal of Mathematical Physics
For the sandwiched Rényi entropy the conditional entropy can be defined two ways: H̃α↓(A|B)ρ,H̃α↑(A|B)ρ. In the limiting case, α = 1, both definitions consolidate into conditional entropy H(A|B) = S(AB) − S(B). The continuity inequality for conditional entropy H(A|B), called the Alicki–Fannes–Winter (AWF) inequality, shows that if the states are close ...
openaire   +2 more sources

A note on conditional arbitrage-free maximum entropy densities for simulative option pricing [PDF]

In this note we present a simple method to include the no-arbitrage condition into the derivation of conditional densities using the principle of maximum entropy.
Herrmann, Klaus
core  

Tsallis Entropy Properties of Record Values

, 2015
: This paper provides Tsallis entropy of record values. Its important properties are analysed and a characterization theorem is established. Further we derived expressions for Tsallis entropy of concomitants of record values arising from the Farlie ...
Jerin Paul, P. YAGEEN Thomas
core   +1 more source