Search Results for author: Marissa Masden

Found 4 papers, 1 papers with code

Automated Grain Boundary (GB) Segmentation and Microstructural Analysis in 347H Stainless Steel Using Deep Learning and Multimodal Microscopy

no code implementations12 May 2023 Shoieb Ahmed Chowdhury, M. F. N. Taufique, Jing Wang, Marissa Masden, Madison Wenzlick, Ram Devanathan, Alan L Schemer-Kohrn, Keerti S Kappagantula

We combine scanning electron microscopy (SEM) images of 347H stainless steel as training data and electron backscatter diffraction (EBSD) micrographs as pixel-wise labels for grain boundary detection as a semantic segmentation task.

Boundary Detection Segmentation +1

Algorithmic Determination of the Combinatorial Structure of the Linear Regions of ReLU Neural Networks

1 code implementation15 Jul 2022 Marissa Masden

We algorithmically determine the regions and facets of all dimensions of the canonical polyhedral complex, the universal object into which a ReLU network decomposes its input space.

Local and global topological complexity measures OF ReLU neural network functions

no code implementations12 Apr 2022 J. Elisenda Grigsby, Kathryn Lindsey, Marissa Masden

We apply a generalized piecewise-linear (PL) version of Morse theory due to Grunert-Kuhnel-Rote to define and study new local and global notions of topological complexity for fully-connected feedforward ReLU neural network functions, F: R^n -> R. Along the way, we show how to construct, for each such F, a canonical polytopal complex K(F) and a deformation retract of the domain onto K(F), yielding a convenient compact model for performing calculations.

Linear discriminant initialization for feed-forward neural networks

no code implementations24 Jul 2020 Marissa Masden, Dev Sinha

Informed by the basic geometry underlying feed forward neural networks, we initialize the weights of the first layer of a neural network using the linear discriminants which best distinguish individual classes.

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