Fig. 4
From: Instant messaging with emotion-embedded vectorized handwritings on mobile devices
Statistics about potential keyboard problems. This shows the statistical result of the potential keyboard issues. Issue (a): The slow input speed generally reflects the unfamiliarity of the keyboard configuration. Issue (b): It is hard to select the desired key because of the small size of the virtual buttons and the large size of our fingers. Issue (c): The configuration of the virtual keyboard is different from the real one to induce typing confusion. Issue (d): Selection of homographs for Chinese induces another familiarity issue