no code implementations • 4 Nov 2023 • Siddhartha Srivastava, Krishna Garikipati
The biological and chemical elements that form the basis of this process, like cells and proteins, occupy finite mass and volume and interact during migration.
no code implementations • 17 Jun 2023 • Chengyang Huang, Siddhartha Srivastava, Xun Huan, Krishna Garikipati
We identify specific manifestations of this isomorphism and use them to create a novel physics-aware IRL algorithm, FP-IRL, which can simultaneously infer the transition and reward functions using only observed trajectories.
no code implementations • 19 Feb 2023 • Patrick C. Kinnunen, Siddhartha Srivastava, Zhenlin Wang, Kenneth K. Y. Ho, Brock A. Humphries, Siyi Chen, Jennifer J. Linderman, Gary D. Luker, Kathryn E. Luker, Krishna Garikipati
Targeting signaling pathways that drive cancer cell migration or proliferation is a common therapeutic approach.
no code implementations • 4 Feb 2022 • Martha D'Eli, Hang Deng, Cedric Fraces, Krishna Garikipati, Lori Graham-Brady, Amanda Howard, Geoerge Karniadakid, Vahid Keshavarzzadeh, Robert M. Kirby, Nathan Kutz, Chunhui Li, Xing Liu, Hannah Lu, Pania Newell, Daniel O'Malley, Masa Prodanovic, Gowri Srinivasan, Alexandre Tartakovsky, Daniel M. Tartakovsky, Hamdi Tchelepi, Bozo Vazic, Hari Viswanathan, Hongkyu Yoon, Piotr Zarzycki
The "Workshop on Machine learning in heterogeneous porous materials" brought together international scientific communities of applied mathematics, porous media, and material sciences with experts in the areas of heterogeneous materials, machine learning (ML) and applied mathematics to identify how ML can advance materials research.
no code implementations • 31 Jan 2022 • Wyatt Bridgman, Xiaoxuan Zhang, Greg Teichert, Mohammad Khalil, Krishna Garikipati, Reese Jones
In this work we employ an encoder-decoder convolutional neural network to predict the failure locations of porous metal tension specimens based only on their initial porosities.
no code implementations • 16 Apr 2021 • Gregory H. Teichert, Sambit Das, Muratahan Aykol, Chirranjeevi Gopal, Vikram Gavini, Krishna Garikipati
Li$_xTM$O$_2$ (TM={Ni, Co, Mn}) are promising cathodes for Li-ion batteries, whose electrochemical cycling performance is strongly governed by crystal structure and phase stability as a function of Li content at the atomistic scale.
no code implementations • 28 Jan 2021 • Debabrata Auddya, Xiaoxuan Zhang, Rahul Gulati, Ritvik Vasan, Krishna Garikipati, Padmini Rangamani, Shiva Rudraraju
Lipid bilayers are represented as spline-based surfaces immersed in a 3D space; this enables modeling of a wide spectrum of membrane geometries, boundary conditions, and deformations that are physically admissible in a 3D space.
no code implementations • 13 Jan 2021 • Xiaoxuan Zhang, Krishna Garikipati
As both Dirichlet and Neumann BCs are specified as inputs to NNs, a single NN can solve for similar physics, but with different BCs and on a number of problem domains.
no code implementations • 2 Jul 2020 • Zhenlin Wang, Xiaoxuan Zhang, Gregory Teichert, Mariana Carrasco-Teja, Krishna Garikipati
We extend the classical SIR model of infectious disease spread to account for time dependence in the parameters, which also include diffusivities.
no code implementations • 30 Jan 2020 • Gregory Teichert, Anirudh Natarajan, Anton Van der Ven, Krishna Garikipati
Specifically, we have developed an integrable deep neural network (IDNN) that can be trained to free energy derivative data obtained from atomic scale models and statistical mechanics, then analytically integrated to recover a free energy density function.
1 code implementation • 12 Nov 2019 • Alexander Zaitzeff, Selim Esedoglu, Krishna Garikipati
As a first, rigorous step in addressing this shortcoming, we present two different second order accurate versions of two-phase threshold dynamics.
Numerical Analysis Numerical Analysis 65M06, 65M12
1 code implementation • 25 Oct 2018 • Alexander Zaitzeff, Selim Esedoglu, Krishna Garikipati
We present careful numerical convergence studies, using parameterized curves to reach very high resolutions in two dimensions, of a level set method for multiphase curvature motion known as the Voronoi implicit interface method.
Numerical Analysis 65M06