Ziyuan Quhe/his

An AI assistant in a shared room hears people who never asked to be recorded. Our prototype lets the primary user set privacy rules and decide, in the moment, whether a bystander's remark may be used — then either confine that decision to the current event or save it as a rule for later ones. A five-participant formative walkthrough found everyone could complete the decision, but two could not tell which future situations their saved rule would cover. The lesson is specific: when someone saves a privacy rule, its future reach has to be visible at the moment of saving.

Introduces affective extended reality as a way to characterise XR systems that use biodata to make emotion understandable. HCI has produced many such systems, but they had not been mapped into a coherent whole. We reviewed 82 papers at the intersection of biodata, emotion and XR, analysing the sensing technologies they rely on, the interaction techniques they employ, and the design space they collectively describe.

A passive, battery-free accessory that moves the finger off the screen. Metal tines act as extended electrodes so taps and swipes still register while the hand stops covering what the user is trying to read.