Anil L. Pereira

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In this paper, we propose a role-based access control (RBAC) method for grid database services in open grid services architecture-data access and integration (OGSA-DAI). OGSA-DAI is an efficient grid-enabled middleware implementation of interfaces and services to access and control data sources and sinks. However, in OGSA-DAI, access control causes(More)
In this paper, we present a role-based access control method for accessing databases through the Open Grid Services Architecture – Data Access and Integration (OGSA-DAI) framework. OGSA-DAI is an efficient Grid-enabled middleware implementation of interfaces and services to access and control data sources and sinks. However, in OGSA-DAI, access control(More)
This paper describes a Role-based Access Control (RBAC) mechanism for distributed High Performance Computing (HPC) systems that will facilitate scalable evaluation, management and enforcement of access control policies. The RBAC mechanism forms an enhanced security framework for Grids and Clouds that will allow for interoperability between technologies in(More)
In this paper, we propose a new algorithm, named Grid-based Distributed Max-Miner (GridDMM), for mining maximal frequent itemsets from databases on a Data Grid. A frequent itemset is maximal if none of its supersets is frequent. GridDMM is specifically suitable for use in Grid environments due to low communication and synchronization overhead. GridDMM(More)
A multimedia server needs to satisfy the temporal ordering of multimedia data streams when servicing a client. Multimedia data has high bandwidth requirements, and within a network a server may need to service many clients at the same time. During a presentation a client may have to wait indefinitely before receiving the next multimedia data stream. This(More)
*Department of Biology, Hampden-Sydney College, Hampden-Sydney, VA 23943; Department of Biological and Environmental Sciences, Longwood University, Farmville, VA 23909; Department of Biology, Saint Mary’s College, Moraga, CA 94575; Department of Biology, University of Mary Washington, Fredericksburg, VA 22401; Departments of Biological Sciences and(More)
In this paper, we propose a new role-based access control (RBAC) system for Grid data resources in the Open Grid Services Architecture Data Access and Integration (OGSA-DAI). OGSA-DAI is a widely used framework for integrating data resources in Grids. However, OGSA-DAI’s identity-based access control causes substantial administration overhead for the(More)
The abundance of large commercial and scientific data stores have driven the need for Petascale computation and data integration. Technologies such as Grid Computing are being developed to address this need. Grid Computing supports the coordinated sharing of data and resources among different organizations. Data Grids focus on the management of data and(More)
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