Fact · Typing and writing speed
5.7percent word error rate
In the simulated touchscreen study, combining a spatial model with a language model reduced word error rate from a 38.4 percent baseline to 5.7 percent.
Checked against its source on October 16, 2026
In the source's own words
“a combined spatial/language model reduces word error rate from a pre-model baseline of 38.4% down to 5.7%”
Effects of Language Modeling and its Personalization on Touchscreen Typing Performance, Andrew Fowler et al., Proceedings of the 33rd Annual ACM CHI Conference on Human Factors in Computing Systems, 2015, Abstract.
Open the original (DOI 10.1145/2702123.2702503)- What it measures
- Uses the Enron email corpus as a personalization test set, with simulated noisy touch input.
- What it does not show
- Simulated typing, not measured with people. Real error rates on real phones will differ.