R. Gururaj

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A Wireless Sensor Network (WSN) is an increasingly important mechanism for enabling continuous monitoring and sensing of physical variables like temperature, humidity etc. The tiny sensor nodes are powered by low capacity batteries. As the WSNs are usually deployed in remote areas, battery replacement becomes difficult. To minimize the power consumption in(More)
In XML filtering systems, if the structure is not known, user may input structurally invalid queries. The filtering system wastes its precious time in evaluating these invalid queries before it eventually finds that the queries are structurally invalid. In this paper we propose a technique to guide the user in formulating queries, which are more likely to(More)
XML message brokering systems support customization that modifies the structure and content of XML messages under dissemination. This allows customized content delivery and data and application integration. In this work we present an approach for modifying XML documents in the context of XML message brokering. In our approach we propose to store XML data in(More)
Wireless Sensor Networks (WSNs) are deployed to capture the sensed data from tiny sensors spread around the physical environment. In general, WSNs are used to monitor physical phenomena like temperature, pressure, humidity etc. In most of the cases they are deployed in remote geographic locations and operate unmanned. Usually, these sensors are battery(More)
Parallel programming languages, APIs and tools available today try to extract as much performance as possible from parallel programs. But when components are parallelized this way, and are composed inside parallelized sections of code, multiple instances of the component are created, each creating more parallel tasks, resulting in much higher overhead. In(More)
Wireless Sensor Networks (WSNs) play a vital role in applications like disaster management and human relief, habitat monitoring, studying the weather and eco system etc. As the location of deployment of WSNs is usually remote, the source of energy is restricted to battery. Hence, all routing and data processing techniques used need to be energy-efficient.(More)
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