December 2020

abs and relu are not Mercer Kernels

December 25, 2020 | jmount

I am sharing some rough notes (in R and Python) here on how while dot(a, b) fulfills “Mercer’s condition” (by definition!, and I’ll just informally call these beasts a “Mercer Kernel”), the seemingly harmless variations abs(dot(a, b)) relu(dot(a, b)) are not Mercer Kernels (... [Read more...]

Covid-19 shinyapp

December 25, 2020 | Firas Fneish

The raw data of this shinyapp is pulled and displayed data Johns Hopkins University Center for Systems Science and Engineering (JHU CCSE). The data is available on {Github}. The data is updated on daily basis. The latest date of the data presented is as of 2020-12-24. If any further ...
[Read more...]

RcppDeepState Analysis

December 25, 2020 | Akhila Chowdary Kolla

Over the past few months, I have been working on testing the Rcpp packages using RcppDeepState in the cluster. When we fuzz test each Rcpp function-specific testharness I have found issues in 134 packages. Refer the web page to check if your Rcpp pack... [Read more...]

Covid-19 Shinyapp

December 24, 2020 | Statistics & R

The data displayed by this {shinyapp} is taken from Johns Hopkins University Center for Systems Science and Engineering (JHU CCSE). The raw data is available on {Github}. The data is updated on daily basis. Packages needed for the app: library(easypac...
[Read more...]

Bounding Excess Generalization Error

December 23, 2020 | jmount

I am sharing a new free video where I work through a great common argument that bounds expected excess generalization error as a ratio of model complexity (in rows) over training set size (again in rows), independent of problem dimension. (link) For more of my notes on support vector machines […] [Read more...]
1 2 3 4 5 15

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)