~/talk

Mobile Education App during COVID

on YouTube 13m
Talkat rstudio::conf 2019 · 2019-01-15..01-18· [web-performance]

speaker

name:Aleksander Dietrichson
links:none on file

resources

video:https://youtu.be/yldz7Rn5zn8
slides:none on file

summary

Over 50% of students lack laptops so a lightweight mobile channel is essential; a Shiny app (shinymobile) with cognitoR auth is deployed as a PWA then wrapped for Play Store, later rebuilt as a native Flutter/Dart app with Firebase backend, R analyses behind a Plumber API, and email reports via blastula. Three rapid iterations (emergency alpha in <1 week, April alpha, Aug 2021 beta) produce analytics that reliably predicted course completion after 3 weeks and reveal scalability limits when many users hit the Shiny server. 50% lacked laptops

AI-written summary · about

chapters (10)

  1. 0:00Introduction
  2. 0:54Learning analytics in pandemic
  3. 2:00First feedback tool
  4. 3:24Shiny mobile app
  5. 5:39Android wrapper limits
  6. 6:44Research results
  7. 8:08Language model challenges
  8. 9:17Beta with Flutter
  9. 10:20Content recommendations
  10. 11:24Instructor feedback

related talks

~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.