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persp-research-econ_spr19's Issues

May 6, Instructor consultations

Dear MACS 30250 Perspectives on Computational Economics Research students,

I have posted a schedule of available times for your Monday, May 6 office consultations with me. These consultations will be held instead of class on Monday, May 6. Each of you will have 10 minutes with me in which we can discuss and assess:

  • Your progress on your paper
  • Any issues you might be having
  • Any suggestions from Dr. Evans
    Please respond to this issue with the time you would prefer.

@boyangqu, @dongchengecon, @fulinguo, @HaowenShang, @jsgenan, @jtschoi, @keertanavc, @liu431, @nt546, @ruixili, @sergioservan, @SixueLiuMACSS, @SiyuanPengMike, @sunying2018, @TianxinZheng, @yalingtsui, @zeyuxu1997

Unsupervised Learning v.s Nonparametric Statistics

@rickecon This is a follow-up on the question raised by @SixueLiuMACSS:

How are unsupervised learning and nonparametric statistics different?

  1. Topics from the syllabi:
    Nonparametric Inference (STAT 37400): kernel density estimation, local regression, splines, confidence bands, orthogonal functions, random processes, and sample methods...

Unsupervised learning (TTIC 31220): dimensionality reduction (PCA), clustering, topic modeling, HMM, density estimation, mixture models, and expectation maximization...

  1. Goals:
    Nonparametric Statistics: descriptive statistics, inference, hypothesis testing...

Unsupervised Learning: find patterns, compress data, visualization...

  1. ML algorithms that are nonparametric
    KNN (supervised)
    Decision Trees (supervised)
    SVM with RBF kernel (supervised)
    KMeans (unsupervised)
    PCA (unsupervised)
    ...

After a brief research on this issue, I find the possible answer is that the two fields overlap, but have different goals to achieve from the data. Also, the nonparametric approach to ML algorithms is getting more popular for its advantages in flexibility and good performance in prediction.

Alternatives for poster printing

Hi, just want everybody to know that Office Depot on 55th street could also do posters. I printed a 24X36 for $31. The color twisted a little bit... Wait a few minutes and you can get it right away. They close at 6pm if I remember correctly.

Wed, May 22, Instructor consultations

Dear MACS 30250 Perspectives on Computational Economics Research students,

I have posted a schedule of available times for your Wednesday, May 22 office consultations with me. These consultations will be held instead of class on Wednesday, May 22. These visits are optional. Any who sign up will have 15 minutes with me in which we can discuss and assess:

  • Your progress on your paper
  • Any issues you might be having
  • Any suggestions from Dr. Evans

If you would like to schedule a time, please respond to this issue with the time you would prefer. I will update the schedule as your responses come in.

@boyangqu, @dongchengecon, @fulinguo, @HaowenShang, @jsgenan, @jtschoi, @keertanavc, @liu431, @nt546, @ruixili, @sergioservan, @SixueLiuMACSS, @SiyuanPengMike, @sunying2018, @TianxinZheng, @yalingtsui, @zeyuxu1997

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