Results 31 to 40 of about 944,515 (124)

How Interactions Affect Many-Body States Distinguishability: A Geometric Viewpoint

open access: yesDynamics
We investigate the information-geometric structure of a self-consistent second-virial approximation with the van der Waals form of the second virial coefficient, using the Fisher information as a generating potential.
Flavia Pennini, Angelo Plastino
doaj   +1 more source

On Monotone Embedding in Information Geometry

open access: yesEntropy, 2015
A paper was published (Harsha and Subrahamanian Moosath, 2014) in which the authors claimed to have discovered an extension to Amari's \(\alpha\)-geometry through a general monotone embedding function. It will be pointed out here that this so-called \((F,
Jun Zhang
doaj   +1 more source

A shape distance based on the Fisher–Rao metric and its application for shapes clustering

open access: yes, 2017
In the clustering of shapes, which is a longstanding challenge in the framework of geometric morphometrics and shape analysis, is crucial the selection and application of a suitable and appropriate measurement of distance among observations (i.e ...
De Sanctis, A   +15 more
core   +1 more source

Bayesian sensitivity analysis with the Fisher–Rao metric [PDF]

open access: yes, 2015
We propose a geometric framework to assess sensitivity of Bayesian procedures to modelling assumptions based on the nonparametric Fisher–Rao metric. While the framework is general, the focus of this article is on assessing local and global robustness in ...
Kurtek, Sebastian, Bharath, Karthik
core   +1 more source

Multidimensional Cost Geometry

open access: yesAxioms
In this paper, we study the geometric structure induced by the canonical reciprocal cost function and its natural n-dimensional extension. In logarithmic coordinates, the potential depends only on the linear combination S=α·t, and the associated Hessian ...
Jonathan Washburn   +2 more
doaj   +1 more source

Lower Bounds for the Integrated and Minimax Risks in Intrinsic Statistical Estimation: A Geometric Approach

open access: yesMathematics
In parametric statistics, it is well established that the canonical measures of estimator performance—such as bias, variance, and mean squared error—are inherently dependent on the parameterization of the model.
José Manuel Corcuera   +1 more
doaj   +1 more source

The Fisher-Rao geometry of CES distributions

open access: yes, 2023
When dealing with a parametric statistical model, a Riemannian manifold can naturally appear by endowing the parameter space with the Fisher information metric.
Renaux, Alexandre   +4 more
core  

An Interpolating Distance between Optimal Transport and Fisher-Rao

open access: yes, 2010
International audienceThis paper defines a new transport metric over the space of non-negative measures. This metric interpolates between the quadratic Wasserstein and the Fisher-Rao metrics and generalizes optimal transport to measures with different ...
Chizat, Lenaic   +3 more
core   +3 more sources

Information theoretic waveform design with applications to adaptive‐on‐transmit radar

open access: yesIET Radar, Sonar & Navigation
The marginal Fisher information (MFI) metric is used to design waveforms for the sake of informationally optimal adaptive‐on‐transmit radar operation. A framework for MFI waveform design is developed and the Polyphase‐Coded FM (PCFM) waveform model is ...
Daniel B. Herr   +2 more
doaj   +1 more source

Information Geometry of Asymmetric Interaction Matrices

open access: yesMathematics
Asymmetric interaction matrices encode the linear coupling structure and directed interaction patterns that arise in mathematical models of complex networks across ecology, finance, and machine learning, yet their geometric structure as points on a ...
TzeHoung Lee, Xue-Ming Yuan
doaj   +1 more source

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