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— Intrusion Detections Systems(IDSs) in ad hoc networks monitor other devices for intentional deviation from protocol, i.e., misbehavior. This process is complicated due to limited radio range and mobility of nodes. Unlike conventional IDSs, it is not possible to monitor nodes for long durations. As a result IDSs suffer from a large number of false(More)
We describe the architecture and implementation of the Solid Earth Research Virtual Observatory (SERVO)'s Complexity Computational Environment. We base our design on a globally scalable distributed " cyber-infrastructure, " or Grid, built around a Web Services-based approach consistent with the extended Web Service Interoperability (WS-I+) model. In order(More)
Development has boosted the GeoFEST system for simulating the faulted crust from a local desktop research application to a community model deployed on advanced cluster platforms, including an Apple G5, Intel P4, SGI Altix 3000, and HP Itaniam 2 clusters. GeoFEST uses unstructured tetrahedral meshes to follow details of stress evolution, fault slip, and(More)
Service-based geographic information system (GIS) technologies can enable an open-architecture cyberinfrastructure to provide standards-compliant data products and computing services for both earthquake research and disaster planning and response. Here, a service-based GIS framework is evaluated using examples from two earthquake science projects: QuakeSim(More)
We propose to define, design, develop, deploy, and test a data semantics based system to provide interoperability for heterogeneous data in the earthquake science domain. We focus on the database management aspects of the work, including modeling the meaning of the data, providing for web service based access to heterogeneous data sources to scientists to(More)
—We describe the goals and initial implementation of the International Solid Earth Virtual Observatory (iSERVO). This system is built using a Web Services approach to Grid computing infrastructure and is accessed via a component-based Web portal user interface. We describe our implementations of services used by this system, including Geographical(More)
—We are developing simulation and analysis tools in order to develop a solid Earth Science framework for understanding and studying active tectonic and earthquake processes. The goal of QuakeSim and its extension, the Solid Earth Research Virtual Observatory (SERVO), is to study the physics of earthquakes using state-of-the-art modeling, data manipulation,(More)
The QuakeSim Problem Solving Environment uses a web-services approach to unify and deploy diverse remote data sources and processing services within a browser environment. Here we focus on the high-performance crustal modelling applications that will be included in this set of remote but in-teroperable applications. PARK is a model for unstable slip on a(More)
Computer simulations will be key to substantial gains in understanding the earthquake process. Emerging information technologies make possible a major change in the way computers are used and data is accessed. An outline of a real-izable computational infrastructure includes standardization of data accessibility , harnessing high-performance computing(More)
—QuakeSim is a project to develop a modeling environment for studying earthquake processes using a web services environment. In order to model interseismic processes multiple data types must be ingested including spaceborne GPS and InSAR data, geological fault data, and seismicity data. QuakeSim federates data from these multiple sources and integrates the(More)