Human-robot interaction is now well enough understood to allow us to build useful systems that can function outside of the laboratory. This thesis defines sociable robot system in the context of long-term interaction, ...

Information markets benefit the communities they serve by facilitating electronic distributed exchange of information. Further benefits include enhancing knowledge sharing, innovation, and productivity. This research ...

Digital materials are comprised of a small number of types of discrete physical building blocks, which assemble to form constructions that meet the versatility and scalability of digital computation and communication ...

With a new way of thinking about organizing sensor networks, we demonstrate that we can more easily deploy and program these networks to solve a variety of different problems. We describe sensor networks that can analyze ...

Distributed collaboration is often more challenging than co-located collaboration as many of the social signals become lost in computer-mediated communication. I propose a system that improves the performance of distributed ...

Personal stories make our experiences memorable over time. Transforming our fragmentary memories into shareable narratives helps us to understand and communicate who we are as individual and social beings. This thesis ...

Studies of computers and education have failed to account for the relevance and importance of tacit assumptions and unquestioned expectations that underlie educational technology practices. A major premise of this dissertation ...