Results 31 to 40 of about 253 (105)
Bayesian Inference for Multivariate Monotone Densities
Scandinavian Journal of Statistics, Volume 53, Issue 3, Page 1206-1229, September 2026.ABSTRACT We consider a nonparametric Bayesian approach to estimation and testing for a multivariate monotone density. Instead of following the conventional Bayesian approach of imposing a prior that satisfies the monotonicity restriction, we place a prior on the step heights via binning and a Dirichlet distribution. The resulting posterior distribution
Kang Wang, Subhashis Ghosal
wiley +1 more source
Engineering Reports, Volume 8, Issue 8, August 2026.This graphical abstract presents a lightweight and automated BiLSTM‐based Multi‐Cycle GAN framework for retinal blood vessel and optic disc segmentation in fundus images. Initially, fundus images undergo preprocessing, including green channel extraction, denoising, resizing, and dataset splitting.
Rasmita Kumari Mohanty +7 more
wiley +1 more source
Journal of Multi-Criteria Decision Analysis, Volume 33, Issue 2, August 2026.ABSTRACT The Flexible and Interactive Tradeoff Elicitation (FITradeoff) method is a Multi‐Attribute Decision‐Making (MADM) approach designed to capture the preferences of a Decision Maker (DM) while minimising cognitive effort. To reduce the frequency of interactions and optimise the preference elicitation process, this paper introduces an innovative ...
Qian Zhao +3 more
wiley +1 more source
Variable Selection for Fixed and Random Effects in Multilevel Functional Mixed Effects Models
Statistics in Medicine, Volume 45, Issue 18-19, August 2026.ABSTRACT We develop a new method for simultaneously selecting fixed and random effects in a multilevel functional regression model. The proposed method is motivated by accelerometer‐derived physical activity data from the 2011 to 2012 cohort of the National Health and Nutrition Examination Survey (NHANES), with the aim of identifying age and race ...
Rahul Ghosal +2 more
wiley +1 more source
Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies
International Economic Review, Volume 67, Issue 3, Page 957-976, August 2026.ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi +2 more
wiley +1 more source
Adversarial meta-learning of Gamma-minimax estimators that leverage prior knowledge. [PDF]
Electron J Stat, 2023 Qiu H, Luedtke A.
europepmc +1 more source
A new mathematical model of multi-faced COVID-19 formulated by fractional derivative chains. [PDF]
Adv Contin Discret Model, 2022 Aldawish I, Ibrahim RW.
europepmc +1 more source
An accelerated minimax algorithm for convex-concave saddle point problems with nonsmooth coupling function. [PDF]
Comput Optim Appl, 2023 Boţ RI, Csetnek ER, Sedlmayer M.
europepmc +1 more source
Aspects of a Phase Transition in High-Dimensional Random Geometry. [PDF]
Entropy (Basel), 2021 Prüser A, Kondor I, Engel A.
europepmc +1 more source
ICAOD: An R Package for Finding Optimal designs for Nonlinear Statistical Models by Imperialist Competitive Algorithm. [PDF]
R J, 2022 Masoudi E, Holling H, Wong WK, Kim S.
europepmc +1 more source