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Text messaging is a functionality that has been widely used in user studies due to its presence in smartphones and feature phones alike. However, the ability to use cell phones for data collection has been limited to researchers that have programming abilities. We present SMSPress, a web-based SMS management system that allows non-technical users to configure SMS studies, and schedule text messages for delivery to participants via a web-interface. We establish the requirements for such a system and present the results from two case studies.
CopyCat and PopSign are two games that help deaf children and their parents acquire language skills in American Sign Language. 95% of deaf children are born to hearing parents, and most of those parents never learn enough sign language to teach their children. As short term memory skills are learned from acquiring a language, many deaf children enter school with short term memory of less than 3 items, much less than hearing children of hearing parents or Deaf children of Deaf parents. Our systems address this problem directly.
Visualizations can help amplify human cognition. In an era where networks are becoming increasingly complex, the desirability of tools to compare and contrast sets, relationships, and reach is significant. Motivated by a practical need articulated by corporate decision makers, this research presents our journey in designing and implementing bicentric diagrams, a novel graph-based set visualization technique. A bicentric diagram enables simultaneous identification of sets, set relationships, and set member reach in integrated ego networks of two focal entities.

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