Query reformulation for dynamic information integration
Journal of Intelligent Information Systems - Special issue on intelligent integration of information
InfoSleuth: agent-based semantic integration of information in open and dynamic environments
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
The TSIMMIS Approach to Mediation: Data Models and Languages
Journal of Intelligent Information Systems - Special issue: next generation information technologies and systems
The Carnot Heterogeneous Database Project: Implemented Applications
Distributed and Parallel Databases
A security architecture for computational grids
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
The grid: blueprint for a new computing infrastructure
The grid: blueprint for a new computing infrastructure
Dataflow plan execution for software agents
AGENTS '00 Proceedings of the fourth international conference on Autonomous agents
Distributed and Parallel Databases
Prometheus: a methodology for developing intelligent agents
Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 1
Information Integration Using Logical Views
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Design and Analysis of Quality Information for Data Warehouses
ER '98 Proceedings of the 17th International Conference on Conceptual Modeling
The SDSC storage resource broker
CASCON '98 Proceedings of the 1998 conference of the Centre for Advanced Studies on Collaborative research
Grid Information Services for Distributed Resource Sharing
HPDC '01 Proceedings of the 10th IEEE International Symposium on High Performance Distributed Computing
SGrid: a service-oriented model for the Semantic grid
Future Generation Computer Systems - Special issue: Semantic grid and knowledge grid: the next-generation web
Extending RDF in distributed knowledge-intensive applications
Future Generation Computer Systems - Special issue: Semantic grid and knowledge grid: the next-generation web
Knowledge logistics in information grid environment
Future Generation Computer Systems - Special issue: Semantic grid and knowledge grid: the next-generation web
Retrieving and Semantically Integrating Heterogeneous Data from the Web
IEEE Intelligent Systems
Transparent access to multiple bioinformatics information sources
IBM Systems Journal - Deep computing for the life sciences
A taxonomy of Data Grids for distributed data sharing, management, and processing
ACM Computing Surveys (CSUR)
A Grid service broker for scheduling e-Science applications on global data Grids: Research Articles
Concurrency and Computation: Practice & Experience - Middleware for Grid Computing
A Core Grid Ontology for the Semantic Grid
CCGRID '06 Proceedings of the Sixth IEEE International Symposium on Cluster Computing and the Grid
Beyond accuracy: what data quality means to data consumers
Journal of Management Information Systems
Computers in Industry - Special issue: Collaborative environments for concurrent engineering
Analyzing metadata for effective use and re-use
DCMI '03 Proceedings of the 2003 international conference on Dublin Core and metadata applications: supporting communities of discourse and practice---metadata research & applications
Resource space model, OWL and database: Mapping and integration
ACM Transactions on Internet Technology (TOIT)
China's E-Science Knowledge Grid Environment
IEEE Intelligent Systems
A Virtual Ring Method for Building Small-World Structured P2P Overlays
IEEE Transactions on Knowledge and Data Engineering
An ActOn-based semantic information service for EGEE
GRID '07 Proceedings of the 8th IEEE/ACM International Conference on Grid Computing
An overview of S-OGSA: A Reference Semantic Grid Architecture
Web Semantics: Science, Services and Agents on the World Wide Web
Metadata quality evaluation: experience from the open language archives community
ICADL'04 Proceedings of the 7th international Conference on Digital Libraries: international collaboration and cross-fertilization
A new distributed and hierarchical mechanism for service discovery in a grid environment
Future Generation Computer Systems
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We describe a semantic information service that aggregates metadata from a large number of information sources of a large-scale Grid infrastructure. It uses an ontology-based information integration architecture (ActOn) suitable for the highly dynamic distributed information sources available in Grid systems, where information changes frequently and where the information of distributed sources has to be aggregated in order to solve complex queries. These two challenges are addressed by a Metadata Cache that works with an update-on-demand policy and by an information source selection module that selects the most suitable source at a given point in time. We have evaluated the quality of this information service, and compared it with other similar services from the EGEE production testbed, with promising results.