The complexity of querying indefinite data about linearly ordered domains
PODS '92 Proceedings of the eleventh ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Query caching and optimization in distributed mediator systems
SIGMOD '96 Proceedings of the 1996 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
Wrapper generation for semi-structured Internet sources
ACM SIGMOD Record
On the decidability of query containment under constraints
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Complexity of answering queries using materialized views
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
A Web-based information system that reasons with structured collections of text
AGENTS '98 Proceedings of the second international conference on Autonomous agents
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
An adaptive query execution system for data integration
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Query optimization in the presence of limited access patterns
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Efficient Queries over Web Views
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
Optimizing Queries Across Diverse Data Sources
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
WebSuite: A Tool Suite for Harnessing Web Data
WebDB '98 Selected papers from the International Workshop on The World Wide Web and Databases
Query-answering algorithms for information agents
AAAI'96 Proceedings of the thirteenth national conference on Artificial intelligence - Volume 1
An efficient plan execution system for information management agents
Proceedings of the 2nd international workshop on Web information and data management
Query containment for data integration systems
PODS '00 Proceedings of the nineteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Data integration: a theoretical perspective
Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Logic-based techniques in data integration
Logic-based artificial intelligence
Explicit Representation of Constrained Schema Mappings for Mediated Data Integration
DNIS '02 Proceedings of the Second International Workshop on Databases in Networked Information Systems
Decidable Containment of Recursive Queries
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Reformulation of XML Queries and Constraints
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Data Exchange: Semantics and Query Answering
ICDT '03 Proceedings of the 9th International Conference on Database Theory
On the Expressive Power of Data Integration Systems
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
Proceedings of the twenty-second ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Data exchange: getting to the core
Proceedings of the twenty-second ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Representing and reasoning about mappings between domain models
Eighteenth national conference on Artificial intelligence
Query containment for data integration systems
Journal of Computer and System Sciences - Special issue on PODS 2000
Reasoning on regular path queries
ACM SIGMOD Record
The Piazza Peer Data Management System
IEEE Transactions on Knowledge and Data Engineering
Constraint-based XML query rewriting for data integration
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Integration of biological sources: current systems and challenges ahead
ACM SIGMOD Record
Query processing in a geographic mediation system
Proceedings of the 12th annual ACM international workshop on Geographic information systems
Exploiting online sources to accurately geocode addresses
Proceedings of the 12th annual ACM international workshop on Geographic information systems
Kanata: adaptation and evolution in data sharing systems
ACM SIGMOD Record
Schema mediation for large-scale semantic data sharing
The VLDB Journal — The International Journal on Very Large Data Bases
Concept-based querying in mediator systems
The VLDB Journal — The International Journal on Very Large Data Bases
Representing and Querying Data Transformations
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Logical foundations of peer-to-peer data integration
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Data exchange: getting to the core
ACM Transactions on Database Systems (TODS) - Special Issue: SIGMOD/PODS 2003
Determining source contribution in integration systems
Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Decidable containment of recursive queries
Theoretical Computer Science - Database theory
Data exchange: semantics and query answering
Theoretical Computer Science - Database theory
Data integration: a logic-based perspective
AI Magazine - Special issue on semantic integration
A mapping system for the integration of OWL-DL ontologies
Proceedings of the first international workshop on Interoperability of heterogeneous information systems
Data integration: the teenage years
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Nested mappings: schema mapping reloaded
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Model management 2.0: manipulating richer mappings
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
MARS: a system for publishing XML from mixed and redundant storage
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Composing mappings among data sources
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Containment of nested XML queries
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
iTrails: pay-as-you-go information integration in dataspaces
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Update exchange with mappings and provenance
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Validation of mappings between schemas
Data & Knowledge Engineering
Interactive source registration in community-oriented information integration
Proceedings of the VLDB Endowment
Data exchange with data-metadata translations
Proceedings of the VLDB Endowment
An Approach to Probabilistic Data Integration for the Semantic Web
Uncertainty Reasoning for the Semantic Web I
Querying structured information sources on the web
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
Ontology-driven geographic information integration: A survey of current approaches
Computers & Geosciences
Ontology-Based mediation system
Proceedings of the 2006 conference on Leading the Web in Concurrent Engineering: Next Generation Concurrent Engineering
An expressive language and efficient execution system for software agents
Journal of Artificial Intelligence Research
A semantic solution for data integration in mixed sensor networks
Computer Communications
Data integration for the relational web
Proceedings of the VLDB Endowment
Bioinformatics service reconciliation by heterogeneous schema transformation
DILS'07 Proceedings of the 4th international conference on Data integration in the life sciences
P2P query reformulation over both-as-view data transformation rules
DBISP2P'05/06 Proceedings of the 2005/2006 international conference on Databases, information systems, and peer-to-peer computing
Proceedings of the 13th International Conference on Database Theory
Querying structured information sources on the Web
International Journal of Metadata, Semantics and Ontologies
A semantic privacy-preserving model for data sharing and integration
Proceedings of the International Conference on Web Intelligence, Mining and Semantics
An ID-logic formalization of the composition of autonomous databases
LPNMR'05 Proceedings of the 8th international conference on Logic Programming and Nonmonotonic Reasoning
Privacy in GLAV information integration
ICDT'07 Proceedings of the 11th international conference on Database Theory
Logical foundations for data integration
SOFSEM'05 Proceedings of the 31st international conference on Theory and Practice of Computer Science
Consistent query answers in virtual data integration systems
Inconsistency Tolerance
SWDB'04 Proceedings of the Second international conference on Semantic Web and Databases
Query answering by rewriting in GLAV data integration systems under constraints
SWDB'04 Proceedings of the Second international conference on Semantic Web and Databases
Index-Based keyword search in mediator systems
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
sPLMap: a probabilistic approach to schema matching
ECIR'05 Proceedings of the 27th European conference on Advances in Information Retrieval Research
Towards law-aware semantic cloud policies with exceptions for data integration and protection
Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics
Semi-automatically mapping structured sources into the semantic web
ESWC'12 Proceedings of the 9th international conference on The Semantic Web: research and applications
Query processing under GLAV mappings for relational and graph databases
Proceedings of the VLDB Endowment
Collaborative data sharing via update exchange and provenance
ACM Transactions on Database Systems (TODS)
Towards simulation-based similarity of end user browsing processes
ICWE'13 Proceedings of the 13th international conference on Web Engineering
FMAMS: Fuzzy Mapping Approach for Mediation Systems
International Journal of Applied Evolutionary Computation
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We consider the problem of building data integration systems when the data sources are webs of data, rather than sets of relations. Previous approaches to modeling data sources are inappropriate in this context because they do not capture the relationships between linked data and the need to navigate through paths in the data source in order to obtain the data. We describe a language for modeling data sources in this new context. We show that our language has the required expressive power, and that minor extensions to it would make query answering intractable. We provide a sound and complete algorithm for reformulating a user query into a query over the data sources, and we show how to create query execution plans that both query and navigate the data sources.