28. non-visual correction :: challenges
Automatic correction?
Word-completion?
How to provide corrections?
When to provide them?
How to users explore suggestions?
29. B#: future improvements
Bi-grams, Tri-grams, N-grams
“Machine Learned” Distance Function
Personalized spellchecker
Leverage touch information
30. B#: android’s proximity matrix
Fairly complex spellchecker
Dozen of features
Worthwhile doing