Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Logical foundations of object-oriented and frame-based languages
Journal of the ACM (JACM)
Part-whole relations in object-centered systems: an overview
Data & Knowledge Engineering - Special issue on modeling parts and wholes
The TSIMMIS Approach to Mediation: Data Models and Languages
Journal of Intelligent Information Systems - Special issue: next generation information technologies and systems
Issues and approaches of database integration
Communications of the ACM
Database techniques for the World-Wide Web: a survey
ACM SIGMOD Record
Modeling Web sources for information integration
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
XML-based information mediation with MIX
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Semantic integration of semistructured and structured data sources
ACM SIGMOD Record
A vision for management of complex models
ACM SIGMOD Record
A Graph-Oriented Model for Articulation of Ontology Interdependencies
EDBT '00 Proceedings of the 7th International Conference on Extending Database Technology: Advances in Database Technology
Model-Based Mediation with Domain Maps
Proceedings of the 17th International Conference on Data Engineering
A Conceptual Graphs Approach to Conceptual Schema Integration
ICCS '93 Proceedings on Conceptual Graphs for Knowledge Representation
Optimizing Queries Across Diverse Data Sources
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
Model-Based Information Integration in a Neuroscience Mediator System
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Querying Heterogeneous Information Sources Using Source Descriptions
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Query Processing with Description Logic Ontologies Over Object-Wrapped Databases
SSDBM '02 Proceedings of the 14th International Conference on Scientific and Statistical Database Management
PROMPT: Algorithm and Tool for Automated Ontology Merging and Alignment
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
The Chimaera Ontology Environment
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
DEXA '01 Proceedings of the 12th International Conference on Database and Expert Systems Applications
Answering queries using views: A survey
The VLDB Journal — The International Journal on Very Large Data Bases
Knowledge-Based Integration of Neuroscience Data Sources
SSDBM '00 Proceedings of the 12th International Conference on Scientific and Statistical Database Management
A logic-based approach to data integration
Theory and Practice of Logic Programming
Transparent access to multiple bioinformatics information sources
IBM Systems Journal - Deep computing for the life sciences
FCA-MERGE: bottom-up merging of ontologies
IJCAI'01 Proceedings of the 17th international joint conference on Artificial intelligence - Volume 1
A Semantic Mediation Approach for Problems in Computational Molecular Biology
CSB '03 Proceedings of the IEEE Computer Society Conference on Bioinformatics
Semantic enrichment for medical ontologies
Journal of Biomedical Informatics
The GEON portal: accelerating knowledge discovery in the geosciences
WIDM '06 Proceedings of the 8th annual ACM international workshop on Web information and data management
GRID '05 Proceedings of the 6th IEEE/ACM International Workshop on Grid Computing
A knowledge environment for the biodiversity and ecological sciences
Journal of Intelligent Information Systems
A pragmatic approach to mapping the open biomedical ontologies
International Journal of Bioinformatics Research and Applications
C++ reflection for high performance problem solving environments
SpringSim '07 Proceedings of the 2007 spring simulation multiconference - Volume 2
Comparison of knowledge during the assembly process of learning objects
Journal of Intelligent Information Systems
Dynamic resource discovery for sensor networks
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Data integration in the biomedical informatics research network (BIRN)
DILS'05 Proceedings of the Second international conference on Data Integration in the Life Sciences
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In a conventional information mediation scenario it is assumed that all sources, including their schemas, are known before the integrated view is defined. We have found this assumption to be unrealistic for scientific information integration -new relevant sources are discovered quite frequently, and need to be integrated incrementally with an existing federation. In this paper, we address the issue of source registration, the mechanism by which a new information source "registers" its semantics with the mediator, such that not only new views can be defined with the newly joining source, but existing views can benefit from the source without any redefinition. We approach the problem in the framework of semantic (a.k.a. knowledge-based or model-based) mediation, a version of information integration where the sources cannot be integrated solely based on their own logical schema, but need additional domain knowledge at the mediator to "glue" them together. We solve the problem by introducing a process called contextualization, whereby a source specifies a set of axioms to express its own conceptual model relative to the mediator's knowledge base. To this end, we present a context specification language CSL that allows the user to specify this mapping, and illustrate how the mediator interprets a CSL specification to update its knowledge schema and preexisting views. The examples are derived from a real-world scenario involving an ongoing collaboration with several neuroscience groups.