Intuitive visualizations for presence and recency information for ambient displays

The Semi-Public Displays project utilizes public displays to assist in the interactions of small groups. This paper describes a set of visualizations for presence information of group members designed for the displays. Here we show that visual mappings of such information can be intuitive. Through our interviews, we also identify data usage, data ambiguity, and data recording as issues influencing how comfortable participants were with privacy in relation to semi-public displays of such information.