Showing 1 - 8 of 8
In this article we present a framework for line search methods for optimization on smooth homogeneous manifolds, with particular emphasis to the Lie group of real orthogonal matrices. We propose strategies of univariate descent (UVD), methods. The main advantage of this approach is that the...
Persistent link: https://www.econbiz.de/10010750172
In this paper, an adaptation of the infinity Laplacian equation to weighted graphs is proposed. This adaptation leads to a nonlocal partial difference equation on graphs, which is an extension of the well-known approximations of the infinity Laplacian equation. To do so, we study the limit as p...
Persistent link: https://www.econbiz.de/10010870132
We present an application of a novel Variational Wave Acquisition Stereo System (VWASS) for the estimation of the wave surface height of oceanic sea states. Specifically, we show that VWASS video technology combined with statistical techniques based on Euler Characteristics of random fields...
Persistent link: https://www.econbiz.de/10010870440
This paper presents the mathematical framework for the attitude and position estimation of an object from its image using three point correspondence information. A closed-form solution for the pose determination problem is derived by representing the relative attitude parameters using...
Persistent link: https://www.econbiz.de/10010748513
The objective of this paper is the reconstruction of upper airway geometric models as hybrid meshes from clinically used Computed Tomography (CT) data sets in order to understand the dynamics and behaviors of the pre- and postoperative upper airway systems of Obstructive Sleep Apnea Syndrome...
Persistent link: https://www.econbiz.de/10010748837
We outline two methods for obstacle reconstruction from multifrequency far-field scattering data, the first built upon the point source method proposed by Potthast for solving inverse scattering problems with single frequency data in the resonance region, and the second based on filtered...
Persistent link: https://www.econbiz.de/10010749024
This paper aims to analyse the seasonality in New Zealand tourism demand from Australia and the USA using spectral analysis. Tourism demand is divided into four different categories depending on the tourists’ visiting purposes as registered in the customs cards upon their arrivals in New...
Persistent link: https://www.econbiz.de/10010750011
This paper shows that in the almost four decades from January 1965 through to December 2003, US stock prices closely followed the 4-year Presidential Election Cycle. In general, stock prices fell during the first half of a Presidency, reached a trough in the second year, rose during the second...
Persistent link: https://www.econbiz.de/10010750127