CaraClock is an interactive photo viewing device which allows for the sharing of "Collective Memory" among family members. The server-based algorithm uses a Bayesian Network that employs probabilistic computation to model each user's interpersonal relationships. When multiple CaraClock devices are synchronized, they display related photos according the settings. This often results in serendipitous discoveries for the whole family by reminding them of their collective experiences through images of their past.
Daisuke Uriu, Naruhiko Shiratori, Satoru Hashimoto, Shuichi Ishibashi, and Naohito Okude. 2009. CaraClock: an interactive photo viewer designed for family memories. In CHI '09 Extended Abstracts on Human Factors in Computing Systems (CHI EA '09). Association for Computing Machinery, New York, NY, USA, 3205–3210. DOI:https://doi.org/10.1145/1520340.1520458