Results 91 to 100 of about 16,577 (195)

Covariances, Robustness, and Variational Bayes [PDF]

arXiv, 2017
Mean-field Variational Bayes (MFVB) is an approximate Bayesian posterior inference technique that is increasingly popular due to its fast runtimes on large-scale datasets. However, even when MFVB provides accurate posterior means for certain parameters, it often mis-estimates variances and covariances.
arxiv  

Peripheral and posterior pole retinal changes in highly myopic Chinese children and adolescents

BMC Ophthalmology
Purpose This study was conducted to evaluate the prevalence and related factors of peripheral and posterior pole retinal changes in highly myopic Chinese children and adolescents. Methods A hospital-based cross-sectional study was designed.
Wenli Zhang, Fan Yang, Shirong Chen, Tingkun Shi   +3 more
doaj   +1 more source

Complex limbal choristoma in linear nevus sebaceous syndrome managed with scleral grafting

Indian Journal of Ophthalmology, 2016
Linear nevus sebaceous syndrome (LNSS) is characterized by nevus sebaceous, mental retardation, seizures, and ocular abnormalities such as complex limbal choistoma.
Nitin Trivedi, Girish Nehete
doaj   +1 more source

Ectopia lentis with posterior staphyloma

, 2022
Raad Tahat
openalex   +1 more source

Post-Ocular Trauma Corneal Staphyloma in a Child Living in an Underdeveloped Region of Eastern Indonesia

Case Reports in Ophthalmology, 2018
Ocular trauma occurring in children often leads to visual impairment or blindness when it is not properly managed. This often occurs in underdeveloped regions with difficult access to professional care at local health facilities. We report a case of post-
Ratna Sitompul, Gladys Kusumowidagdo, Eiko B. Matiur, Julie D. Barliana, Rita S. Sitorus, Saleha Sungkar   +5 more
doaj   +1 more source

3D Growth and Remodeling Theory Supports the Hypothesis of Staphyloma Formation from Local Scleral Weakening under Normal Intraocular Pressure [PDF]

arXiv
$\bf{Purpose}$: To assess whether Growth & Remodeling (G&R) theory could explain staphyloma formation from a local scleral weakening. $\bf{Methods}$: A finite element model of a healthy eye was reconstructed, including the following connective tissues: the lamina cribrosa, the peripapillary sclera, and the peripheral sclera.
arxiv  

Fundus2Globe: Generative AI-Driven 3D Digital Twins for Personalized Myopia Management [PDF]

arXiv
Myopia, projected to affect 50% population globally by 2050, is a leading cause of vision loss. Eyes with pathological myopia exhibit distinctive shape distributions, which are closely linked to the progression of vision-threatening complications. Recent understanding of eye-shape-based biomarkers requires magnetic resonance imaging (MRI), however, it ...
arxiv  

Unilateral focal choroidal excavation in autosomal recessive bestrophinopathy

Journal of Clinical Ophthalmology and Research
Focal choroidal excavation (FCE) refers to one or more areas of localized choroidal excavation seen on spectral-domain optical coherence tomography, in the absence of a posterior staphyloma or scleral ectasia.
Neha Goel
doaj   +1 more source

Flat Posterior Does Matter For Bayesian Model Averaging [PDF]

arXiv
Bayesian neural networks (BNNs) estimate the posterior distribution of model parameters and utilize posterior samples for Bayesian Model Averaging (BMA) in prediction. However, despite the crucial role of flatness in the loss landscape in improving the generalization of neural networks, its impact on BMA has been largely overlooked.
arxiv  

Continuous Gaussian mixture solution for linear Bayesian inversion with application to Laplace priors [PDF]

arXiv
We focus on Bayesian inverse problems with Gaussian likelihood, linear forward model, and priors that can be formulated as a Gaussian mixture. Such a mixture is expressed as an integral of Gaussian density functions weighted by a mixing density over the mixing variables.
arxiv