Communications of the ACM
SPREAD: scalable platform for reliable and efficient automated distribution
Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
A scalable content-addressable network
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Globally Distributed Content Delivery
IEEE Internet Computing
Chord: a scalable peer-to-peer lookup protocol for internet applications
IEEE/ACM Transactions on Networking (TON)
A Dynamic Object Replication and Migration Protocol for an Internet Hosting Service
ICDCS '99 Proceedings of the 19th IEEE International Conference on Distributed Computing Systems
Editorial: semantics, resource and grid
Future Generation Computer Systems - Special issue: Semantic grid and knowledge grid: the next-generation web
Grids of Grids of Simple Services
Computing in Science and Engineering
Web Services-Based Data Management: Evaluating the Performance of UDDI Registries
ICWS '04 Proceedings of the IEEE International Conference on Web Services
Replication for web hosting systems
ACM Computing Surveys (CSUR)
Replication for web hosting systems
ACM Computing Surveys (CSUR)
Information Technology and Management
Semantic grid: scientific issues, infrastructure, and methodology
Communications of the ACM - Transforming China
Design and implementation of a collaboration web-services system
Neural, Parallel & Scientific Computations - Special issue: Grid computing
The Knowledge Grid
SERVOGrid Complexity Computational Environments (CCE) Integrated Performance Analysis
GRID '05 Proceedings of the 6th IEEE/ACM International Workshop on Grid Computing
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
A taxonomy of grid monitoring systems
Future Generation Computer Systems
QoS-based dissemination of content in Grids
Future Generation Computer Systems
So-Grid: A self-organizing Grid featuring bio-inspired algorithms
ACM Transactions on Autonomous and Adaptive Systems (TAAS)
Reorganization and discovery of grid information with epidemic tuning
Future Generation Computer Systems
Bring QoS to P2P-based semantic service discovery for the Universal Network
Personal and Ubiquitous Computing
A swarm algorithm for a self-structured P2P information system
IEEE Transactions on Evolutionary Computation
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E-Science Semantic Grids can often be thought of as a dynamic collection of semantic subgrids where each subgrid is a collection of a modest number of services that are assembled for specific tasks. We define a Gaggle as a modest number of managed and actively interacting Grid/Web Services, where services are put together for particular functionality. The information management requirements in Gaggles include both the management of large amounts of relatively static services and associated semantic information as well as the management of multiple dynamic regions (sessions or subgrids) where the semantic information is changing frequently. We design a hybrid, fault tolerant, and high performance Information Service supporting both the scalability of large amounts of relatively slowly varying data and a high performance rapidly updated Information Service for dynamic regions. We use the two Web Service standards: Universal Description, Discovery, and Integration (UDDI) and Web Services Context (WS-Context). We evaluate our approach by applying various tests to investigate the performance and sustainability of the centralized version of our implementation that is applied to sensor and collaboration grids. The experimental study on system responsiveness of the proposed approach shows promising results. This study indicates that communication among services can be achieved with efficient centralized metadata strategies, with metadata coming from more than two services. In contrast point-to-point methodologies provide service conversation with metadata only from the two services that exchange information. In addition, our performance indicates that efficient mediator services also allow us to perform collective operations such as queries on subsets of all available metadata in service conversation.