Results 101 to 110 of about 684,507 (282)
The multilevel hierarchical data EM-algorithm. Applications to discrete-time Markov chain epidemic models. [PDF]
Heliyon, 2022 Wanduku D.
europepmc +1 more source
A Gradient Algorithm Locally Equivalent to the Em Algorithm [PDF]
Journal of the Royal Statistical Society Series B: Statistical Methodology, 1995 SUMMARY In many problems of maximum likelihood estimation, it is impossible to carry out either the E-step or the M-step of the EM algorithm. The present paper introduces a gradient algorithm that is closely related to the EM algorithm.
openaire +3 more sources
Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems
Advanced Optical Materials, EarlyView.This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge +2 more
wiley +1 more source
Delaunay triangulation of imprecise points, preprocess and actually get a fast query time
Journal of Computational Geometry, 2011 We propose a new algorithm to preprocess a set of n disjoint unit disks in O(n log n) expected time, allowing to compute the Delaunay triangulation of a set of n points, one from each disk, in O(n) expected time.
Olivier Devillers
doaj +1 more source
Simulation of Logistics Delay in Bayesian Network Control Based on Genetic EM Algorithm. [PDF]
Comput Intell Neurosci, 2022 Qiao P.
europepmc +1 more source
An EM algorithm for dynamic SPECT
IEEE Transactions on Medical Imaging, 1999 In this paper we present two variants of the EM algorithm for dynamic SPECT imaging. A version based on compartmental modeling which fits a sum of exponentials and a more general approach allowing for arbitrary decaying activities. The underlying probabilistic models are discussed and the incomplete and complete data spaces are shown to be physically ...
Bauschke, Heinz H. +3 more
openaire +3 more sources
Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC
Advanced Robotics Research, EarlyView.The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang +7 more
wiley +1 more source
EM Algorithm for Estimating the Parameters of Weibull Competing Risk Model. [PDF]
Appl Bionics Biomech, 2021 Kayid M.
europepmc +1 more source
Advanced Sustainable Systems, EarlyView.Nanosafety data provide a guiding example for establishing best practices in data management, aligning with FAIR principles and quality criteria. This review explores existing quality assessment approaches for reliability, relevance, and completeness, emphasizing the need for harmonization and adaptation to nanomaterials and advanced materials. The aim
Verónica I. Dumit +43 more
wiley +1 more source
Advanced Science, EarlyView.This study presents a machine‐learning framework entitled MERLIN that infers the microanatomical localization of macrophages from single‐cell transcriptomic data in structured organs such as the kidney and brain. Applying this method to existing datasets from models of acute kidney injury and diabetic nephropathy uncovered spatially resolved insights ...
Junping Yin +18 more
wiley +1 more source