Joseph S. Sventek

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Publish/subscribe is considered one of the most important interaction styles for the explosive market of enterprise application integration. Producers publish information on a software bus and consumers subscribe to the information they want to receive from that bus. The decoupling nature of the interaction between the publishers and the subscribers is not(More)
Heterogeneous multi-core processors, such as the IBM Cell processor, can deliver high performance. However, these processors are notoriously difficult to program: different cores support different instruction set architectures, and the processor as a whole does not provide coherence between the different cores' local memories. We present Hera-JVM, an(More)
Future e-Health systems will consist of low-power on-body wireless sensors attached to mobile users that interact with a ubiquitous computing environment. This kind of system needs to be able to configure itself with little or no user input, but more importantly, it is required to adapt autonomously to changes such as user movement, device failure, and the(More)
Amongst the challenges of ubiquitous computing is the need to provide management support for personal wireless devices and sensors. In this extended abstract we introduce a policy-based architecture that supports management at varying levels based on the concept of a self-managed cell. Cells include policy-driven agents that support context-based and(More)
The middleware market represents a sizable segment of the overall Information and Communication Technology market. In 2005, the annual middleware license revenue was reported by Gartner to be in the region of 8.5 billion US Dollars. In this article we address the question whether research had any involvement in the creation of the technology that is being(More)
Body sensor networks consisting of low-power on- body wireless sensors attached to mobile users will be used in the future to monitor the health and well being of patients in hospitals or at home. Such systems need to adapt autonomously to changes in context, user activity, device failure, and the availability or loss of services. To this end, we propose a(More)
Wireless home networks are increasingly deployed in people's homes worldwide. Unfortunately, home networks have evolved using protocols designed for backbone and enterprise networks, which are quite different in scale and character to home networks. We believe this evolution is at the heart of widely observed problems experienced by users managing and using(More)
An increasing number of processor architectures support <i>scratch-pad memory</i> - software managed on-chip memory. Scratch-pad memory provides low latency data storage, like on-chip caches, but under explicit software control. The simple design and predictable nature of scratchpad memories has seen them incorporated into a number of embedded and real-time(More)
Home networks have evolved to become small-scale versions of enterprise networks. The tools for visualizing and managing such networks are primitive and continue to require networked systems expertise on the part of the home user. As a result, non-expert home users must manually manage non-obvious aspects of the network - e.g., MAC address filtering,(More)
This paper presents a user driven redesign of the domestic network infrastructure that draws upon a series of ethnographic studies of home networks. We present an infrastructure based around a purpose built access point that has modified the handling of protocols and services to reflect the interactive needs of the home. The developed infrastructure offers(More)