Because UMSR employs information from a user model and content structuring to present only those options that are likely to be relevant to the user, and explicitly points out trade-offs among options, we hypothesized that it would also consume less cognitive resources, that is, presentations based on UMSR would impose less cognitive load than those based on SR.
in parallel to our work on the interaction task experiment, a companion project conducted experiments using a dual-task setting (driving a simulated car while using the dialog system to book flights) to investigate the effects of the two strategies to information presentation (UMSR vs. SR) on cognitive load (Hu et al.