Search Results for author: Aman Verma

Found 5 papers, 1 papers with code

HSADML: Hyper-Sphere Angular Deep Metric based Learning for Brain Tumor Classification

no code implementations28 Jan 2022 Aman Verma, Vibhav Prakash Singh

With utilization of SphereFace loss based deep metric learning it is ensured that samples from class clustered together while the different ones are pushed apart.

Metric Learning

DFCANet: Dense Feature Calibration-Attention Guided Network for Cross Domain Iris Presentation Attack Detection

no code implementations1 Nov 2021 Gaurav Jaswal, Aman Verma, Sumantra Dutta Roy, Raghavendra Ramachandra

To alleviate these shortcomings, this paper proposes DFCANet: Dense Feature Calibration and Attention Guided Network which calibrates the locally spread iris patterns with the globally located ones.

Cross-Domain Iris Presentation Attack Detection Incremental Learning +1

Supervised multi-specialist topic model with applications on large-scale electronic health record data

1 code implementation4 May 2021 Ziyang Song, Xavier Sumba Toral, Yixin Xu, Aihua Liu, Liming Guo, Guido Powell, Aman Verma, David Buckeridge, Ariane Marelli, Yue Li

Motivation: Electronic health record (EHR) data provides a new venue to elucidate disease comorbidities and latent phenotypes for precision medicine.

Variational Inference

Modeling disease progression in longitudinal EHR data using continuous-time hidden Markov models

no code implementations3 Dec 2018 Aman Verma, Guido Powell, Yu Luo, David Stephens, David L. Buckeridge

Modeling disease progression in healthcare administrative databases is complicated by the fact that patients are observed only at irregular intervals when they seek healthcare services.

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