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…
Date:10 November 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/81937865320?pwd=ZjVLbDd5NmlDOThZbVVFOG5qZlJmUT09
Time:3pm-4pm, Singapore
On theoretical guarantees for variational Bayes methodStandard Bayesian methods typically scale poorly with the sample size, especially in complex, high-dimensional models. A popular approach to speed…
Date:27 October 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/81025066139?pwd=ZVR1Qmg5T2JwQnpIS3VCdzFJUjZTQT09
Time:10am-11am, Singapore
Seminar is cancelled-Manifold Learning 2.0: Explanations and EigenflowsManifold learning algorithms can recover the underlying low-dimensional parametrization of high-dimensional point clouds. This talk will extend this paradigm in…
Date:20 October 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/82634395523?pwd=akFVV0pWanNVSjNkMmtZaThqdnVRUT09
Time:3pm-4pm, Singapore
Statistical Methods for cryo-EM Image AnalysisWithin the past five years, breakthrough of resolution in single-particle cryo-electron microscopy (cryo-EM) has transformed it into a main-stream tool…
Date:13 October 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/81240526533?pwd=eDg2My9uUDd1c1FrTGZpamRjODVQQT09
Time:10am-11am, Singapore
Statistical Challenges in Biobank-scale Brain Imaging GeneticsRecently the UK Biobank study has conducted brain MRI imaging scans of over 40,000 participants. In addition, publicly available imaging…
Date:6 October 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/82677473540?pwd=UFRmckVlZ2RydG5ZaEk0a0FkdGNIdz09
Time:10am-11am, Singapore
Empirical Frequency Band Analysis of Nonstationary Time SeriesThe time-varying power spectrum of a time series process is a bivariate function that quantifies the magnitude of oscillations at…
Date:15 September 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/87221252162?pwd=S0xzQklCdyt0VStWY0twTmVFYXVNdz09
Time:3pm-4pm, Singapore
Double data piling and negatively ridged classifiers in high dimensionsData piling refers to the phenomenon that training data vectors from each class project to a single point for classification….