Search Results for author: Bartek Rajwa

Found 6 papers, 3 papers with code

IM: An R-Package for Computation of Image Moments and Moment Invariants

no code implementations29 Oct 2022 Allison Irvine, Tan Dang, M. Murat Dundar, Bartek Rajwa

In this report, we introduce a package for R-language, named IM, that implements the calculation of moments for images and allows the reconstruction of images from moments within an object-oriented framework.

Image Classification

Generative modeling of the enteric nervous system employing point pattern analysis and graph construction

no code implementations26 Oct 2022 Abida Sanjana Shemonti, Joshua D. Eisenberg, Robert O. Heuckeroth, Marthe J. Howard, Alex Pothen, Bartek Rajwa

We describe a generative network model of the architecture of the enteric nervous system (ENS) in the colon employing data from images of human and mouse tissue samples obtained through confocal microscopy.

graph construction Graph Generation

A novel statistical methodology for quantifying the spatial arrangements of axons in peripheral nerves

1 code implementation18 Oct 2022 Abida Sanjana Shemonti, Emanuele Plebani, Natalia P. Biscola, Deborah M. Jaffey, Leif A. Havton, Janet R. Keast, Alex Pothen, M. Murat Dundar, Terry L. Powley, Bartek Rajwa

In this study, we employed spatial statistics and point process models to describe the spatial arrangement of axons and Sinkhorn distances to compute the similarities between these arrangements (in terms of first- and second-order statistics) in various vagus and pelvic nerve cross-sections.

Bayesian Nonparametrics for Non-exhaustive Learning

no code implementations26 Aug 2019 Yicheng Cheng, Bartek Rajwa, Murat Dundar

Non-exhaustive learning (NEL) is an emerging machine-learning paradigm designed to confront the challenge of non-stationary environments characterized by anon-exhaustive training sets lacking full information about the available classes. Unlike traditional supervised learning that relies on fixed models, NEL utilizes self-adjusting machine learning to better accommodate the non-stationary nature of the real-world problem, which is at the root of many recently discovered limitations of deep learning.

BIG-bench Machine Learning open-set classification +1

The Infinite Mixture of Infinite Gaussian Mixtures

1 code implementation NeurIPS 2014 Halid Z. Yerebakan, Bartek Rajwa, Murat Dundar

Dirichlet process mixture of Gaussians (DPMG) has been used in the literature for clustering and density estimation problems.

Clustering Density Estimation

Scalable methods for nonnegative matrix factorizations of near-separable tall-and-skinny matrices

1 code implementation NeurIPS 2014 Austin R. Benson, Jason D. Lee, Bartek Rajwa, David F. Gleich

We demonstrate the efficacy of these algorithms on terabyte-sized synthetic matrices and real-world matrices from scientific computing and bioinformatics.

Cannot find the paper you are looking for? You can Submit a new open access paper.