!- Converted with LaTeX2HTML 0.6.4 (Tues Aug 30 1994) by Nikos Drakos (firstname.lastname@example.org), CBLU, University of Leeds ->
Consider the following expression as read by a person familiar with mathematical notation:
The experienced reader is able to quickly scan the above expression and, while perusing the denominator, access the numerator. This ability is a consequence of internalizing the underlying structure conveyed by the visual layout and using it to traverse the information. The atomic actions in accessing the numerator are:
We enable audio browsing by allowing a listener to perform the same kind of traversals. AsTeR internalizes a sufficiently rich structure to permit all of these browsing actions.