Dipak Surie was at my department. His work focused, as I understood it, on learning what tasks people were trying to perform and what actions were included in those. Say that a person with dementia may be trying to make coffee, and would forget what they were doing halfway through. The system would understand that and help out by saying what the next action should be.

https://scholar.google.se/citations?user=-mxqfbIAAAAJ&hl=sv&... is his Google Scholar page.