A
Andy Nguyen
Researcher at Stanford University
Publications - 21
Citations - 1369
Andy Nguyen is an academic researcher from Stanford University. The author has contributed to research in topics: Computer science & Medicine. The author has an hindex of 11, co-authored 14 publications receiving 1133 citations. Previous affiliations of Andy Nguyen include VA Palo Alto Healthcare System.
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Journal ArticleDOI
Convolutional wasserstein distances: efficient optimal transportation on geometric domains
Justin Solomon,Fernando de Goes,Gabriel Peyré,Marco Cuturi,Adrian Butscher,Andy Nguyen,Tao Du,Leonidas J. Guibas +7 more
TL;DR: The main contribution is to show that optimal transportation can be made tractable over large domains used in graphics, such as images and triangle meshes, improving performance by orders of magnitude compared to previous work.
Proceedings Article
Learning Program Embeddings to Propagate Feedback on Student Code
TL;DR: A neural network method is introduced to encode programs as a linear mapping from an embedded precondition space to an embedded postcondition space and an algorithm for feedback at scale is proposed using these linear maps as features.
Journal ArticleDOI
An Optimization Approach to Improving Collections of Shape Maps
TL;DR: This work shows how, given a collection of pairwise shape maps, to define an optimization problem whose output is a set of alternative maps, compositions of those given, which are consistent, and individually at times much better than the original.
Journal ArticleDOI
Long-term cognitive impairments and pathological alterations in a mouse model of repetitive mild traumatic brain injury
Jian Luo,Jian Luo,Andy Nguyen,Andy Nguyen,Saul A. Villeda,Hui Zhang,Hui Zhang,Zhaoqing Ding,Derek P. Lindsey,Gregor Bieri,Joseph M. Castellano,Joseph M. Castellano,Gary S. Beaupre,Tony Wyss-Coray,Tony Wyss-Coray +14 more
TL;DR: A mouse model of repetitive mTBI, induced onto the closed head over the left frontal hemisphere with an electromagnetic stereotaxic impact device, and a significant impairment in spatial learning and memory when tested at 2 and 6 months after injury are developed.
Proceedings ArticleDOI
Codewebs: scalable homework search for massive open online programming courses
TL;DR: A method for decomposing online homework submissions into a vocabulary of "code phrases", and based on this vocabulary, a queryable index that allows for fast searches into the massive dataset of student homework submissions is designed.