Eleftheria Katsiri

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—Body sensor networks e.g., for health monitoring , consist of several low-power on-body wireless sensors, higher-level devices such as PDAs and possibly actuators such as drug delivery pumps. It is important that such networks can adapt autonomously to changing conditions such as failures, changes in context e.g., user activity, or changes in the clinical(More)
We present a dynamic knowledge-base maintenance system for representing and reasoning with knowledge about the Sentient Computing environment. Sentient Computing has the property that it constantly monitors a rapidly-changing environment, thus introducing the need for abstract modelling of the physical world which is at the same time computationally(More)
We present work done within the Grid ENabled Integrated Earth system model (GENIE) project to take the original, complex, tightly-coupled Fortran earth modeling application that has been developed by the GENIE team and enable it for execution within a component-based execution environment. Further we have aimed to show that by representing the application(More)
This paper discusses the principles of making inferences about a user's context from location time-series. These principles have been implemented and embedded in a statistical model, used in a Sentient [1] Notification Service. This model makes estimates about the probability of a situation occurring in the future, based on users' locations and past(More)
Cloud computing is a model for enabling ubiquitous, convenient , on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, virtual machines, applications , and services) that can be rapidly and elastically provisioned, to quickly scale out, and rapidly released to quickly scale in. However, commercially(More)