Results 31 to 40 of about 3,027 (198)

Robust Multivehicle Tracking With Wasserstein Association Metric in Surveillance Videos

open access: yesIEEE Access, 2020
Vehicle tracking based on surveillance videos is of great significance in the highway traffic monitoring field. In real-world vehicle-tracking applications, partial occlusion and objects with similarly appearing distractors pose significant challenges ...
Yanjie Zeng   +5 more
doaj   +1 more source

Using the Wasserstein distance to compare fields of pollutants: application to the radionuclide atmospheric dispersion of the Fukushima-Daiichi accident

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2016
The verification of simulations against data and the comparison of model simulation of pollutant fields rely on the critical choice of statistical indicators. Most of the scores are based on point-wise, that is, local, value comparison.
Alban Farchi   +4 more
doaj   +1 more source

Homogenisation of Wasserstein gradient flows

open access: yesEuropean Journal of Applied Mathematics
We prove the convergence of a Wasserstein gradient flow of a free energy in inhomogeneous media. Both the energy and media can depend on the spatial variable in a fast oscillatory manner.
Yuan Gao, Nung Kwan Yip
doaj   +1 more source

Estimation of the drift parameter for the fractional stochastic heat equation via power variation

open access: yesModern Stochastics: Theory and Applications, 2019
We define power variation estimators for the drift parameter of the stochastic heat equation with the fractional Laplacian and an additive Gaussian noise which is white in time and white or correlated in space.
Zeina Mahdi Khalil, Ciprian Tudor
doaj   +1 more source

Mapper Comparison with Wasserstein Metrics

open access: yesCoRR, 2018
The challenge of describing model drift is an open question in unsupervised learning. It can be difficult to evaluate at what point an unsupervised model has deviated beyond what would be expected from a different sample from the same population. This is particularly true for models without a probabilistic interpretation. One such family of techniques,
openaire   +2 more sources

Distribution’s template estimate with Wasserstein metrics

open access: yesBernoulli, 2015
In this paper we tackle the problem of comparing distributions of random variables and defining a mean pattern between a sample of random events. Using barycenters of measures in the Wasserstein space, we propose an iterative version as an estimation of the mean distribution.
Boissard, Emmanuel   +2 more
openaire   +5 more sources

Distribution-based covariate assessment using wasserstein distance in population pharmacokinetic models

open access: yesFrontiers in Pharmacology
BackgroundPopulation pharmacokinetic modeling relies on adequate covariate specification to explain interindividual variability and support model-informed precision dosing.
Nicolas Simon   +3 more
doaj   +1 more source

Composition‐Aware Cross‐Sectional Integration for Spatial Transcriptomics

open access: yesAdvanced Intelligent Discovery, EarlyView.
Multi‐section spatial transcriptomics demands coherent cell‐type deconvolution, domain detection, and batch correction, yet existing pipelines treat these tasks separately. FUSION unifies them within a composition‐aware latent framework, modeling reads as cell‐type–specific topics and clustering in embedding space.
Qishi Dong   +5 more
wiley   +1 more source

Harnessing Machine Learning to Understand and Design Disordered Solids

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review maps the dynamic evolution of machine learning in disordered solids, from structural representations to generative modeling. It explores how deep learning and model explainability transform property prediction into profound physical insight.
Muchen Wang, Yue Fan
wiley   +1 more source

Distributionally Robust Multi-Energy Dynamic Optimal Power Flow Considering Water Spillage with Wasserstein Metric

open access: yesEnergies, 2022
This paper proposes a distributed robust multi-energy dynamic optimal power flow (DR-DOPF) model to overcome the uncertainty of new energy outputs and to reduce water spillage in hydropower plants.
Gengli Song, Hua Wei
doaj   +1 more source

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