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0. Schedule

QiHong Lu edited this page Dec 16, 2016 · 42 revisions

Meeting 10/19

Talk by Andrew Haun, from the Rokers vision lab

  • Motion and depth perception fMRI data
  • Relevant works investigating how motion and depth are represented in the brain
  • Future directions that we can explore

I am working on some decoding analysis at this repo: motionDecoding_fMRI


Meeting 10/26

Intro to MVPA by Qihong:

  • Matlab & Github basics
  • Linear systems
  • Full rank systems
  • "Inconsistent" rows
  • Underdetermined systems in the context of fMRI data
  • Classification
  • Least square classification
  • Logistic regression
  • Resources
  • Linear algebra cheat sheet, by Professor Laurent Lessard.

Meeting 11/2

Intro to MVPA by Qihong:

  • Regularization
  • Motivation for sparsity
  • Compare Lasso vs. Ridge penalty, varying true sparsity
  • Introduce the motion fMRI data

Meeting 11/9

Intro to MVPA by Qihong:

  • Elastic net with Glmnet
  • Experimental Methodology
  • Underfitting & Overfitting - bias & variance
  • Train & test & validation, K-Folds cross validation
  • Matlab practice

Meeting 11/16

Intro to MVPA by Qihong:

  • Practice with the motion fMRI data
  • Decode 2d motion: whole brain model vs. V1 model

Meeting 11/23 - Cancelled because of Thanksgiving


Meeting 11/30

Feature selection by Qihong:

  • Iterative Lasso

Meeting 12/7

  • Methodological reflection by Tim and Qihong
  • What's next?!

Meeting 12/14 - Cancelled because of final exams


Meeting 12/20

Another Logistic Lasso practice by Qihong

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