David Gerritsen

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In this paper we focus on modeling friendships between humans as a way of working towards technology that can initiate and sustain a lifelong relationship with users. We do this by predicting friendship status in a dyad using a set of automatically harvested verbal and nonverbal features from videos of the interaction of students in a peer tutoring study.(More)
Entire industries have grown up around the physiological, cognitive, and economic demands of technology on users, but there is little research into the specific psychological processes and implications of the social function of human-computer interaction (HCI), especially when the computer is programmed to mimic human norms. To understand this issue better,(More)
Research shows the benefits of active learning in American college classrooms. International graduate students in American universities may face difficulties in teaching students with different cultural dispositions. The current research uses power distance to explore cultural juxtapositions in classrooms and personal informatics design to propose an(More)
In an 18-year-old woman with abdominal complaints of unknown origin, ultrasonography and CT showed a large abnormal structure in the left half of the liver. Biopsy showed this to be an abscess. Because Staphylococcus aureus was cultured and the patient had suffered from a navel infection after navel piercing several months earlier, it was concluded that the(More)
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