Results 121 to 130 of about 56,994 (331)

The Generalized Extreme Value (GEV) Distribution, Implied Tail Index and Option Pricing [PDF]

Crisis events such as the 1987 stock market crash, the Asian Crisis and the bursting of the Dot-Com bubble have radically changed the view that extreme events in financial markets have negligible probability.
Sheri Markose, Amadeo Alentorn
core  

Blind Signal Separation Using an Adaptive Generalized Compound Gamma Distribution

, 2014
We propose an independent component analysis (ICA) algorithm which can separate mixtures of sub- and super- Gaussian source signals with self-adaptive nonlinearities. The ICA algorithm in the framework of natural Riemannian gradient, is derived using the
A. Moftah Elmabrouk, Mohamed El-Sayed Wahed, Y. A. Amer   +2 more
core   +1 more source

Affinity‐Tuned Albumin Hitchhiking Extends the Bioorthogonal Capture Window in Pretargeting Radiotheranostics

Advanced Healthcare Materials, EarlyView.
Pharmacokinetic engineering of clickable radioligands was achieved via albumin hitchhiking approach within a pretargeted radiotheranostics delivery platform. This approach reduced rapid renal elimination, expanded bioorthogonal capture window, boosted tumor uptake by ∼3.5‐fold, and improved the tumor‐to‐liver ratio by ∼6‐fold.
Xie He, Nicholas L. Fletcher, Gayathri R. Ediriweera, Yifei Zhu, James Humphries, Christopher B. Howard, Jiazheng Wang, Craig A. Bell, Kristian Kempe, Kristofer J. Thurecht   +9 more
wiley   +1 more source

A Versatile Distribution Based on the Incomplete Gamma Function: Characterization and Applications

Mathematics
In this study, we introduce a novel distribution related to the gamma distribution, referred to as the generalized incomplete gamma distribution. This new family is defined through a stochastic representation involving a linear transformation of a random
Jimmy Reyes, Carolina Marchant, Karol I. Santoro, Yuri A. Iriarte   +3 more
doaj   +1 more source

The gamma generalized normal distribution: A descriptor of SAR imagery

Journal of Computational and Applied Mathematics, 2019
We propose a new four-parameter distribution for modeling synthetic aperture radar (SAR) imagery named the gamma generalized normal (GGN) by combining the gamma and generalized normal distributions. A mathematical characterization of the new distribution is provided by identifying the limit behavior and by calculating the density and moment expansions.
Gauss M. Cordeiro, Renato J. Cintra, Leandro Chaves Rêgo, Abraão David Costa do Nascimento   +3 more
openaire   +2 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Robust Estimators of the Generalized Log-Gamma Distribution

Technometrics, 2014
We propose robust estimators of the generalized log-gamma distribution and, more generally, of location-shape-scale families of distributions. A (weighted) Qτ estimator minimizes a τ scale of the differences between empirical and theoretical quantiles.
Alfio Marazzi, AGOSTINELLI, Claudio, Victor Yohai   +2 more
openaire   +5 more sources

Modeling SAR Images Based on a Generalized Gamma Distribution for Texture Component

, 2013
In the applications of synthetic aperture radar (SAR) data, a crucial problem is to develop precise models for the statistics of the pixel amplitudes or intensities. In this paper, a new statistical model, called simply here Gii, is proposed based on the
Gui Gao, Xianxiang Qin, Shilin Zhou
semanticscholar   +1 more source

Densities of composite Weibullized generalized gamma variables [PDF]

, 2010
ArticleThe Weibullized generalized gamma distribution, which is a very exible distribution due to it richness in parameter structure, is derived by introducing the Weibullizing constant to the generalized gamma distribution.
Bekker, Andriette, 1958-, Roux, Jacobus J.J., Pauw, J.   +2 more
core  

Theoretical Properties of the Weighted Generalized Gamma Distribution and Related Distributions

, 2015
A new class of weighted generalized gamma distribution (WGGD) and related distributions are presented. Theoretical properties of the generalized gamma model, WGGD including the hazard function, reverse hazard function, moments, coefficient of variation ...
Priyadarshani, Hewa A., Oluyede, Broderick O.   +1 more
core   +1 more source