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Roummel F. Marcia

5 accepted papers

2019

Deep Neural Networks for Low-resolution Photon-limited Imaging

ICASSP 2019accepted

In this paper, we implement deep learning methods to recover downsampled noisy signals often present in compressed sensing applications. As an alternative to relying on previously established optimization based algorithms, we implement stacked denoising autoencoders and convolutional neural networks…

Cited by 0SourceScholar
2018

Negative Binomial Optimization for Biomedical Structural Variant Signal Reconstruction

ICASSP 2018accepted

Structural variants (SVs) - novel adjacencies in an individual's genome - lead to genomic diversity across all organisms. When DNA fragments of an unknown genome are compared to a reference genome, errors in sequencing and mapping obscure true genomic rearrangements. When the sequencing coverage is…

Cited by 0SourceScholar
2016

Analysis of p-norm regularized subproblem minimization for sparse photon-limited image recovery

ICASSP 2016accepted

Critical to accurate reconstruction of sparse signals from low-dimensional low-photon count observations is the solution of nonlinear optimization problems that promote sparse solutions. In this paper, we explore recovering high-resolution sparse signals from low-resolution measurements corrupted by…

Cited by 0SourceScholar
2016

Sparse signal recovery methods for variant detection in next-generation sequencing data

ICASSP 2016accepted

Recent advances in high-throughput sequencing technologies, have led to the collection of vast quantities of genomic data., Structural variants (SVs) - rearrangements of the genome, larger than one letter such as inversions, insertions, deletions, and duplications - are an important source of geneti…

Cited by 0SourceScholar