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This paper motivates and describes the notion of ad hoc mobile information systems. Such a system consists of a decentralized and self-organizing network of autonomous, mobile devices that interact as peers. Connectivity is determined by distance between devices; as hosts change their physical location they establish pair-wise peering relationships based on(More)
This paper reports on an empirical study aimed at evaluating the utility of a reality-augmenting telepointer in a wearable videoconference system. Results show that using this telepointer a remote expert can effectively guide and direct a field worker’s manual activities. By analyzing verbal communication behavior and pointing gestures, we were able to(More)
W earable computers enhance personal computing with continuously worn, intelligent assistants that augment memory, intellect, creativity, communication, and physical senses.1–3 As wearable computing technology pervades our daily lives, we must ask how it influences social behavior. Will it merely make people “smarter” by providing seamless, context-aware(More)
An initial attempt at the development of a set of benchmarks to gauge a system's robustness as measured by its ability to tolerate errors is presented. Due to the large domain of system components whose intolerance to errors can lead to system failure, several primitive benchmarks that can be combined into a robustness benchmark suite are presented. Each(More)
The authors examine a special software development environment called the Parallel Programming and Instrumentation Environment (PIE). PIE is designed to develop performance-efficient parallel and sequential computations. Following an explanation of PIE's general theory and features, PIE's visualization tools are used to isolate and repair the parallelism(More)