The Quadtree and Related Hierarchical Data Structures
ACM Computing Surveys (CSUR)
Multidimensional binary search trees used for associative searching
Communications of the ACM
Using high-speed WANs and network data caches to enable remote and distributed visualization
Proceedings of the 2000 ACM/IEEE conference on Supercomputing
R-trees: a dynamic index structure for spatial searching
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
IEEE Transactions on Computers
Analysis of the Clustering Properties of the Hilbert Space-Filling Curve
IEEE Transactions on Knowledge and Data Engineering
Chimera: AVirtual Data System for Representing, Querying, and Automating Data Derivation
SSDBM '02 Proceedings of the 14th International Conference on Scientific and Statistical Database Management
Condor-G: A Computation Management Agent for Multi-Institutional Grids
HPDC '01 Proceedings of the 10th IEEE International Symposium on High Performance Distributed Computing
File and Object Replication in Data Grids
HPDC '01 Proceedings of the 10th IEEE International Symposium on High Performance Distributed Computing
Triana: A Graphical Web Service Composition and Execution Toolkit
ICWS '04 Proceedings of the IEEE International Conference on Web Services
Accurate unlexicalized parsing
ACL '03 Proceedings of the 41st Annual Meeting on Association for Computational Linguistics - Volume 1
Pegasus: A framework for mapping complex scientific workflows onto distributed systems
Scientific Programming
Proceedings of the 2nd workshop on Workflows in support of large-scale science
Query and update efficient B+-tree based indexing of moving objects
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Provenance trails in the Wings-Pegasus system
Concurrency and Computation: Practice & Experience - The First Provenance Challenge
Data Management Challenges of Data-Intensive Scientific Workflows
CCGRID '08 Proceedings of the 2008 Eighth IEEE International Symposium on Cluster Computing and the Grid
A Middleware for Developing and Deploying Scalable Remote Mining Services
CCGRID '08 Proceedings of the 2008 Eighth IEEE International Symposium on Cluster Computing and the Grid
A novel domain oriented approach for scientific grid workflow composition
Proceedings of the 2008 ACM/IEEE conference on Supercomputing
Cost and accuracy sensitive dynamic workflow composition over grid environments
GRID '08 Proceedings of the 2008 9th IEEE/ACM International Conference on Grid Computing
An agent based network resource planner for workflow applications
Multiagent and Grid Systems - Agent Based Computing: From Model to Implementation
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From personal software to advanced systems, caching mechanisms have steadfastly been a ubiquitous means for reducing workloads. It is no surprise, then, that under the grid and cluster paradigms, middlewares and other large-scale applications often seek caching solutions. Among these distributed applications, scientific workflow management systems have gained ground towards mitigating the often painstaking process of composing sequences of scientific data sets and services to derive virtual data. In the past, workflow managers have relied on low-level system cache for reuse support. But in distributed query intensive environments, where high volumes of intermediate virtual data can potentially be stored anywhere on the grid, a novel cache structure is needed to efficiently facilitate workflow planning. In this paper, we describe an approach to combat the challenges of maintaining large, fast virtual data caches for workflow composition. A hierarchical structure is proposed for indexing scientific data with spatiotemporal annotations across grid nodes. Our experimental results show that our hierarchical index is scalable and outperforms a centralized indexing scheme by an exponential factor in query intensive environments.