Placeholders in physical documents provide critical support for the human reader in relocating material and their place in the text. However, the equivalent tools in digital docume...
Page flipping is an important part of paper-based document navigation. However this affordance of paper document has not been fully transferred to digital documents. In this paper...
In the 2003, more camera phones were sold worldwide than digital cameras. With this new platform, we can leverage regularities in the spatio-temporal context and social community ...