Patient following of links resolves the mystery I'm sure everyone is asking:
The ‘1€’ name is an homage to the $1 recognizer [10]: we believe
that the 1€ filter can make filtering input signals simpler and
better, much like the $1 recognizer did for gestures
https://dl.acm.org/doi/10.1145%2F2207676.2208639?cid=8110016...But if they wanted to do the homage to $1 recognizer, shouldn't they call it €0.95 filter?
Edit: nvm, just realized they included the VAT
But now I gotta know why it's called the $1 recognizer! One question solved, another opened.
Edit: > It's because the algorithm is easy to implement and efficient in terms of compute usage to match a gesture. It's a "cheap and easy" recognizer, a $1 recognizer.
Paper [1] and home page [2] of the $1 Unistroke Recognizer.
[1] https://www.microsoft.com/en-us/research/wp-content/uploads/...
[2] https://depts.washington.edu/acelab/proj/dollar/index.html