Search Results for author: Jamie Haddock

Found 13 papers, 6 papers with code

Neural Nonnegative Matrix Factorization for Hierarchical Multilayer Topic Modeling

no code implementations28 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.

Document Classification

An Interpretable Joint Nonnegative Matrix Factorization-Based Point Cloud Distance Measure

no code implementations11 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.

Denoising Transfer Learning

Nonbacktracking spectral clustering of nonuniform hypergraphs

1 code implementation27 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.

Clustering

Semi-supervised Nonnegative Matrix Factorization for Document Classification

no code implementations28 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.

Classification Document Classification +1

A Generalized Hierarchical Nonnegative Tensor Decomposition

1 code implementation30 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.

Tensor Decomposition

Neural Nonnegative CP Decomposition for Hierarchical Tensor Analysis

no code implementations1 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.

Document Classification

On a Guided Nonnegative Matrix Factorization

1 code implementation22 Oct 2020 Joshua Vendrow, Jamie Haddock, Elizaveta Rebrova, Deanna Needell

Fully unsupervised topic models have found fantastic success in document clustering and classification.

Clustering Topic Models

On Application of Block Kaczmarz Methods in Matrix Factorization

1 code implementation20 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.

Collaborative Filtering Recommendation Systems

Semi-supervised NMF Models for Topic Modeling in Learning Tasks

1 code implementation15 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.

General Classification

Feature Selection on Lyme Disease Patient Survey Data

no code implementations24 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.

BIG-bench Machine Learning feature selection

Data-driven Algorithm Selection and Parameter Tuning: Two Case studies in Optimization and Signal Processing

no code implementations31 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.

BIG-bench Machine Learning

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