Date:19 October 2022, Wednesday
Time:3-4 pm, Singapore
Unsupervised Multi-task and Transfer Learning on Gaussian Mixture ModelsAbstract Unsupervised learning has been widely used in many real-world applications. One of the simplest and most important unsupervised learning…
Date:20 September 2022, Tuesday
Location:ZOOM: https://nus-sg.zoom.us/j/81420416646?pwd=bDNkNlF5N09id0dnam9OQnByV3dxZz09
Time:9.30-10.30 am, Singapore
Uncertainty Quantification of Unknown Orientations and Ab-initio Reconstructions in Single-particle Cryo-EM (Ph.D. Oral Presentation)Single-particle cryo-electron microscopy (cryo-EM) is a tool which aids in the analysis of proteins and biological macromolecules, to investigate their…
Date:19 September 2022, Monday
Location:ZOOM: https://nus-sg.zoom.us/j/89616121854?pwd=Y0FTS0RvVkRxMUx6TEg1VDMvaVlyUT09
Time:3-4 pm, Singapore
Filling The Gap With Missing Data (Ph.D. Oral Presentation)We encounter missing data in research due to issues such as technical glitch, input mistake, drop-out, or outliers; they appear…
Date:27 June 2022, Monday
Location:ZOOM: https://nus-sg.zoom.us/j/84330125369?pwd=MEdjaXhoQlhFQTdMVlFhV253WStSdz09
Time:3 pm - 4 pm, Singapore
On Annotation Efficient Learning for Computer Vision Tasks and its Application on Medical Image Datasets (Ph.D. Oral Presentation)Deep neural networks when trained on huge collections of labelled data have shown impressive performance, often matching human-level performance, on…
Date:20 May 2022, Friday
Location:ZOOM: https://nus-sg.zoom.us/j/81479843120?pwd=cmxZMFlVYXU2MzY4TytLL0pMaVFIUT09
Time:11 am - 12 pm, Singapore
Testing Equality Of Distributions In High-Dimension: Maximum Mean Discrepancy Based Approaches (Ph.D. Oral Presentation)With developing data collection techniques, the analysis of complicated data objects in some separable metric spaces is an active research…
Date:11 May 2022, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/83343127774?pwd=OXlFK2tEc1FrZlErSXZINnR5ZHo3QT09
Time:3-4pm, Singapore
Metropolis Adjusted Langevin Trajectories: A robust alternative to Hamiltonian Monte CarloHamiltonian Monte Carlo (HMC) is a widely used sampler, known for its efficiency on high dimensional distributions. Yet HMC remains…
Date:30 March 2022, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/84451331397?pwd=WDg2YkdhV3c5OHY0VnFzcWg4ZmpIUT09
Time:10-11am, Singapore
Statistical Learning for High-dimensional Tensor DataThe analysis of tensor data has become an active research topic in statistics and data science recently. Many high order…
Date:2 March 2022, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/83007550135?pwd=dEduMFZCeWdOQVJORUtmMkJid3hTUT09
Time:11am-12pm, Singapore
CLT for Fréchet mean and geometryIn this talk, with a broad goal of building a mathematical foundation for statistical analysis on stratified spaces, I will…
Date:27 December 2021, Monday
Location:ZOOM: https://nus-sg.zoom.us/j/87153758757?pwd=aHBpWC82M1B2RjJJcURuaHBiSTd6UT09
Time:9am-10am, Singapore
Interpolation Phase Transition in Neural Networks: Memorization and Generalization under Neural Tangent ModelA mystery of modern neural networks is their surprising generalization power in overparametrized regime: they comprise so many parameters that…
Date:1 December 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/82818288400?pwd=VG1hQnpoRnFZQk5wRHFNOGRaWXlNdz09
Time:10am-11am, Singapore
Confidence Regions for Density RidgesA ridge in a data cloud is a low-dimensional geometric feature that generalizes the concept of local modes, in the…