Biostatistics and Medical Informatics Department Seminar with Yiqiao Zhong
Do you interpret your t-SNE embeddings correctly? A perspective from map-continuity and leave-one-out
Event Details
Date
Friday, April 4, 2025
Time
12-1 p.m.
Location
Description
Dr. Zhong will present present evidence that embedding maps of t-SNE, UMAP and LargeVis can exhibit discontinuity points, leading to unintended topological distortions. To address this, Dr. Zhong will introduce the leave-one-out (LOO) surrogate that captures the properties of embedding maps, 2 types of discontinuity patterns, and two methods to mitigate these issues that help detect out-of-distributions samples in deep learning and assist hyperparameter tuning in single-cell data analysis.
Cost
Free
Contact
Accessibility
We value inclusion and access for all participants and are pleased to provide reasonable accommodations for this event. Please email junjie.hu@wisc.edu to make a disability-related accommodation request. Reasonable effort will be made to support your request.