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….
Date:9 September 2021, Thursday
Location:ZOOM: https://nus-sg.zoom.us/j/83430142299?pwd=SHJuVlNYSWtVeFB0U3hQZVpmUjJXUT09
Time:10am-11am, Singapore
The Citation Behavior of StatisticiansWe collected and cleaned a data set consisting of the bibtex and citation data of 83k papers published in 36…
Date:25 August 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/84620486674?pwd=Skhra1FieHJobEJhMkxna1lhVC9tQT09
Time:10:00am - 11:00am, Singapore time
High Dimensional QDA when the Signals are Rare and Weak.Consider a two-class classification problem where we observe samples generated from groups 0 and 1. Suppose a new sample from the…
Date:18 August 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/85483215533?pwd=OGpyR281Q3U1SXk3bENpRkJjeWVxUT09
Time:10:00am - 11:00am, Singapore time
Algorithmic Properties of Large Sample Covariance MatricesThe last two decades have witnessed the rapid development of large dimensional matrices in probability and statistics. A lot of…
Date:11 August 2021, Wednesday
Location:ZOOM: https://nus-sg.zoom.us/j/83733599303?pwd=ZGhJYVMxUTltWVZqT2ZoTTlOOGhQZz09
Time:10:00am - 11:00am, Singapore time
Divide-and-Conquer Bayesian Inference in Hidden Markov ModelsThis talk is about Divide-and-conquer Bayesian inference in models for dependent data. Divide-and-conquer Bayesian methods consist of three steps: dividing…