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typing exercises

character sets

  • Numeric characters (0123456789)
  • Special characters (~!@#$%^&()_+-={}[];\',., *| missing)
  • Alphabet
    • a - z
    • A - Z
      • left hand shift + right hand a - z
      • right hand shift + left hand a - z

yarn start

Dojo Web (alpha)

  • cd dojo-web-server
  • yarn start
  • page is available at localhost:8080

Design

Instant Feedback

  • error on current key
  • repeated errors for the same key

Configuration

  • accept correction or not
  • able to see the next few letters or not
  • automatically remove wrong characters or not (especially for training, typing backspace in-between adds up mental noises)
  • set of keys
  • difficulty (definition? cue: finger distance between neighbors, repeated keys in a sequence (lower the difficulty), randomness, ...)

Mode

  • training with visual cue (virtual keyboard with keys highlighted)
  • test session (strict config)
  • review session (replay, statistics, annotation)
  • RPG (against imaginary boss, life point, attack, levels, etc.)
    • dungeon explore
      • people sharing the same world map
      • pairing active users by effort (time investment, improvement, playbook, etc.)
    • # of corrects - # of errors = # of steps available

similar idea ~ make data labeling fun to play

  • feedback: users' own effort improves AI-powered system that directly affects the user experience
    • users will be divided into isolated groups to test out multiple configurations / evolution tracks
    • dialogue bot (NLP), NPC strategies (reinforcement learning), player pairing/recommendation

picture bounding box labeling

  • memory game: recall the position

Dungeons TOME

sightreading.training — A tool for learning to sight-read sheet music

connection to music streaming services

Statistics

Global

  • total number of errors
  • sorting keys by number of errors
  • sorting keys by reflex time
  • trend diagram over a period of time

Local

  1. record all key strokes
  • characters
    • "A"-"Z", "a"-"z", "!@#$%^&*()-_=+|"
    • "Backspace", "Shift"
    • the rest are grouped into "Other"
      • "Space", modifiers, function keys (Arrow keys? depends on Mode)
  • reflex time
  • errors (~ matching)
  1. group key strokes into clusters (to determine "hard" snippets) by
  • time-related
    • average speed over a window
    • below a threshold of average speed
    • below a threshold of reflex time
  • accuracy-related
    • below a threshold of errors
  • user annotated

Guideline

2018-08-10 4min

pain points

  1. alternate between little finger and ring finger e.g. [], 09,de pl oy
  2. double strike with the same finger, especially little finger and ring finger e.g. dep lo y

2018-07-24 4min 10s

2018-07-04 4min 40s

Note taking in latex is smoother but missing * and | in training.

Need a better symbol generator.

TODO

  • build a composable random number generator
    • Linear cogruential generator (LCG)
  • build common distributions on top of that
  • generate from customized set of symbols

2018-06-29 5min

Performance kind of stabilized. Need to target the poorly-handled subset of symbols.

No enough data collected during the exercises. One way is to build a web app for this.

By mental statistics, %^& was mistyped most frequently. For 23@#, sometimes not using the optimal finger.

Left shift and right shift switching needs some work.

Current strategy is to switch hand when the other one is "busy". An exception: 6 or ^ is right in the middle of left and right hands. When typing a sequence like ^6^, there is no need to switch hands but press and release shift by the same hand.

Records

dojo-web with full charset (# = 500)

2019-06-06-1 3min 34s

2019-05-15-1 3min 29s

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Archive

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Bug

Partially Fixed, edge case: \\\\, only one \ got removed. Fixed, 2018-12-09 2018-12-08 Parsed response string from purescript-affjax contains quotes and escape token (\).

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