no code implementations • 28 Feb 2023 • Tyler Will, Runyu Zhang, Eli Sadovnik, Mengdi Gao, Joshua Vendrow, Jamie Haddock, Denali Molitor, Deanna Needell
We introduce a new method based on nonnegative matrix factorization, Neural NMF, for detecting latent hierarchical structure in data.
1 code implementation • 28 Aug 2022 • Elena Sizikova, Joshua Vendrow, Xu Cao, Rachel Grotheer, Jamie Haddock, Lara Kassab, Alona Kryshchenko, Thomas Merkh, R. W. M. A. Madushani, Kenny Moise, Annie Ulichney, Huy V. Vo, Chuntian Wang, Megan Coffee, Kathryn Leonard, Deanna Needell
Automatic infectious disease classification from images can facilitate needed medical diagnoses.
no code implementations • 11 Jul 2022 • Hannah Friedman, Amani R. Maina-Kilaas, Julianna Schalkwyk, Hina Ahmed, Jamie Haddock
In this paper, we propose a new method for determining shared features of and measuring the distance between data sets or point clouds.
1 code implementation • 27 Apr 2022 • Philip Chodrow, Nicole Eikmeier, Jamie Haddock
Spectral methods offer a tractable, global framework for clustering in graphs via eigenvector computations on graph matrices.
no code implementations • 28 Feb 2022 • Jamie Haddock, Lara Kassab, Sixian Li, Alona Kryshchenko, Rachel Grotheer, Elena Sizikova, Chuntian Wang, Thomas Merkh, RWMA Madushani, Miju Ahn, Deanna Needell, Kathryn Leonard
We propose new semi-supervised nonnegative matrix factorization (SSNMF) models for document classification and provide motivation for these models as maximum likelihood estimators.
1 code implementation • 30 Sep 2021 • Joshua Vendrow, Jamie Haddock, Deanna Needell
Hierarchical NTF (HNTF) methods have been proposed, however these methods do not naturally generalize their matrix-based counterparts.
no code implementations • 1 Jan 2021 • Joshua Vendrow, Jamie Haddock, Deanna Needell
We propose a new hierarchical nonnegative CANDECOMP/PARAFAC (CP) decomposition (hierarchical NCPD) model and a training method, Neural NCPD, for performing hierarchical topic modeling on multi-modal tensor data.
1 code implementation • 22 Oct 2020 • Joshua Vendrow, Jamie Haddock, Elizaveta Rebrova, Deanna Needell
Fully unsupervised topic models have found fantastic success in document clustering and classification.
1 code implementation • 20 Oct 2020 • Edwin Chau, Jamie Haddock
Matrix factorization techniques compute low-rank product approximations of high dimensional data matrices and as a result, are often employed in recommender systems and collaborative filtering applications.
1 code implementation • 15 Oct 2020 • Jamie Haddock, Lara Kassab, Sixian Li, Alona Kryshchenko, Rachel Grotheer, Elena Sizikova, Chuntian Wang, Thomas Merkh, R. W. M. A. Madushani, Miju Ahn, Deanna Needell, Kathryn Leonard
We propose several new models for semi-supervised nonnegative matrix factorization (SSNMF) and provide motivation for SSNMF models as maximum likelihood estimators given specific distributions of uncertainty.
Ranked #13 on Text Classification on 20NEWS
no code implementations • 24 Aug 2020 • Joshua Vendrow, Jamie Haddock, Deanna Needell, Lorraine Johnson
We first analyze the general performance of the model and then identify the most important features for predicting participant answers to GROC.
no code implementations • 2 Jan 2020 • Miju Ahn, Nicole Eikmeier, Jamie Haddock, Lara Kassab, Alona Kryshchenko, Kathryn Leonard, Deanna Needell, R. W. M. A. Madushani, Elena Sizikova, Chuntian Wang
There is currently an unprecedented demand for large-scale temporal data analysis due to the explosive growth of data.
no code implementations • 31 May 2019 • Jesus A. De Loera, Jamie Haddock, Anna Ma, Deanna Needell
Machine learning algorithms typically rely on optimization subroutines and are well-known to provide very effective outcomes for many types of problems.