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Complexity of answering queries using materialized views
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Combining Horn rules and description logics in CARIN
Artificial Intelligence
Consistent query answers in inconsistent databases
PODS '99 Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
WWW '99 Proceedings of the eighth international conference on World Wide Web
Data warehousing: using the Wal-Mart model
Data warehousing: using the Wal-Mart model
Reconciling schemas of disparate data sources: a machine-learning approach
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
EDUTELLA: a P2P networking infrastructure based on RDF
Proceedings of the 11th international conference on World Wide Web
Learning to map between ontologies on the semantic web
Proceedings of the 11th international conference on World Wide Web
Object Exchange Across Heterogeneous Information Sources
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
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Views in a Large Scale XML Repository
Proceedings of the 27th International Conference on Very Large Data Bases
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VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Ontology-Based Integration of XML Web Resources
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
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ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
Sesame: A Generic Architecture for Storing and Querying RDF and RDF Schema
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
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
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The VLDB Journal — The International Journal on Very Large Data Bases
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The VLDB Journal — The International Journal on Very Large Data Bases
A survey of approaches to automatic schema matching
The VLDB Journal — The International Journal on Very Large Data Bases
The Piazza peer data management project
ACM SIGMOD Record
Detection and Correction of Conflicting Source Updates for View Maintenance
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
How to make a semantic web browser
Proceedings of the 13th international conference on World Wide Web
The Piazza Peer Data Management System
IEEE Transactions on Knowledge and Data Engineering
Lazy query evaluation for Active XML
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Efficient query reformulation in peer data management systems
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
On the Correctness of Query Results in XML P2P Databases
P2P '04 Proceedings of the Fourth International Conference on Peer-to-Peer Computing
IEEE Intelligent Systems
RDF-Based Schema Mediation for Database Grid
GRID '04 Proceedings of the 5th IEEE/ACM International Workshop on Grid Computing
A survey of peer-to-peer content distribution technologies
ACM Computing Surveys (CSUR)
Guiding queries to information sources with InfoBeacons
Proceedings of the 5th ACM/IFIP/USENIX international conference on Middleware
Schema mediation for large-scale semantic data sharing
The VLDB Journal — The International Journal on Very Large Data Bases
Progressive Distributed Top-k Retrieval in Peer-to-Peer Networks
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Composing schema mappings: second-order dependencies to the rescue
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Ad Hoc, self-supervising peer-to-peer search networks
ACM Transactions on Information Systems (TOIS)
Using OWL for querying an XML/RDF syntax
WWW '05 Special interest tracks and posters of the 14th international conference on World Wide Web
Relational.OWL: a data and schema representation format based on OWL
APCCM '05 Proceedings of the 2nd Asia-Pacific conference on Conceptual modelling - Volume 43
Proceedings of the 14th ACM international conference on Information and knowledge management
Composing schema mappings: Second-order dependencies to the rescue
ACM Transactions on Database Systems (TODS) - Special Issue: SIGMOD/PODS 2004
An efficient algorithm for XML type projection
Proceedings of the 8th ACM SIGPLAN international conference on Principles and practice of declarative programming
Management of unspecified semi-structured data in multi-agent environment
Proceedings of the 2006 ACM symposium on Applied computing
A Compensation-Based Approach for View Maintenance in Distributed Environments
IEEE Transactions on Knowledge and Data Engineering
SIL: a model for analyzing scalable peer-to-peer search networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
GridVine: An Infrastructure for Peer Information Management
IEEE Internet Computing
Composing mappings among data sources
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Indexing views to route queries in a PDMS
Distributed and Parallel Databases
Inconsistency tolerance in P2P data integration: An epistemic logic approach
Information Systems
A probabilistic trust model for semantic peer to peer systems
DaMaP '08 Proceedings of the 2008 international workshop on Data management in peer-to-peer systems
The Active XML project: an overview
The VLDB Journal — The International Journal on Very Large Data Bases
Information Fusion
Ontology-based data source localization in a structured peer-to-peer environment
IDEAS '08 Proceedings of the 2008 international symposium on Database engineering & applications
A DHT-based infrastructure for ad-hoc integration and querying of semantic data
IDEAS '08 Proceedings of the 2008 international symposium on Database engineering & applications
A step towards incremental maintenance of the composed schema mapping
Proceedings of the 17th ACM conference on Information and knowledge management
Fault-tolerant semantic mappings among heterogeneous and distributed local ontologies
Proceedings of the 2nd international workshop on Ontologies and information systems for the semantic web
Discovering Semantically Similar Associations (SeSA) for Complex Mappings between Conceptual Models
ER '08 Proceedings of the 27th International Conference on Conceptual Modeling
Exploiting semantic proximities for content search over p2p networks
Computer Communications
Reasoning with Inconsistencies in Propositional Peer-to-Peer Inference Systems
Proceedings of the 2006 conference on ECAI 2006: 17th European Conference on Artificial Intelligence August 29 -- September 1, 2006, Riva del Garda, Italy
SECCO: On Building Semantic Links in Peer-to-Peer Networks
Journal on Data Semantics XII
PAIS: A Proximity-Aware Interest-Clustered P2P File Sharing System
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
Detection of corrupted schema mappings in XML data integration systems
ACM Transactions on Internet Technology (TOIT)
Building semantic mappings from databases to ontologies
AAAI'06 proceedings of the 21st national conference on Artificial intelligence - Volume 2
Semantic reconciliation in peer multi-data source management system
IDEAS '09 Proceedings of the 2009 International Database Engineering & Applications Symposium
Distributed reasoning in a peer-to-peer setting: application to the semantic web
Journal of Artificial Intelligence Research
Scalability study of peer-to-peer consequence finding
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
An intelligent query processing for distributed ontologies
Journal of Systems and Software
An interest-based P2P file sharing system
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Contorsion: A Semantic XPath Processor
Electronic Notes in Theoretical Computer Science (ENTCS)
Data storage management in semantic web service
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A subscribable peer-to-peer RDF repository for distributed metadata management
Web Semantics: Science, Services and Agents on the World Wide Web
Facilitating business interoperability from the semantic web
BIS'07 Proceedings of the 10th international conference on Business information systems
Journal on data semantics VIII
Generation and matching of ontology data for the semantic web in a peer-to-peer framework
APWeb/WAIM'07 Proceedings of the joint 9th Asia-Pacific web and 8th international conference on web-age information management conference on Advances in data and web management
Schema mapping and query translation in heterogeneous P2P XML databases
The VLDB Journal — The International Journal on Very Large Data Bases
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
Cross: an OWL wrapper for reasoning on relational databases
ER'07 Proceedings of the 26th international conference on Conceptual modeling
Query distributed ontology over grid environment
ICCSA'07 Proceedings of the 2007 international conference on Computational science and its applications - Volume Part III
On the secure sharing and aggregation of data to support systems biology research
DILS'10 Proceedings of the 7th international conference on Data integration in the life sciences
MashUp web data sources and services based on semantic queries
Information Systems
On enhancing scalability for distributed RDF/S stores
Proceedings of the 14th International Conference on Extending Database Technology
Precision and complexity of XQuery type inference
Proceedings of the 13th international ACM SIGPLAN symposium on Principles and practices of declarative programming
A semantic-based approach for data management in a P2P system
Transactions on large-scale data- and knowledge-centered systems III
Generating synthetic database schemas for simulation purposes
DEXA'11 Proceedings of the 22nd international conference on Database and expert systems applications - Volume Part II
Gossiping correspondences to reduce semantic heterogeneity of unstructured P2P systems
Globe'11 Proceedings of the 4th international conference on Data management in grid and peer-to-peer systems
Resource discovery considering semantic properties in data grid environments
Globe'11 Proceedings of the 4th international conference on Data management in grid and peer-to-peer systems
Collaborative Interest Management for Peer-to-Peer Networked Virtual Environment
PADS '11 Proceedings of the 2011 IEEE Workshop on Principles of Advanced and Distributed Simulation
Alignment-based trust for resource finding in semantic P2P networks
ISWC'11 Proceedings of the 10th international conference on The semantic web - Volume Part I
Constructing complex semantic mappings between XML data and ontologies
ISWC'05 Proceedings of the 4th international conference on The Semantic Web
DartGrid: RDF-mediated database integration and process coordination using grid as the platform
APWeb'05 Proceedings of the 7th Asia-Pacific web conference on Web Technologies Research and Development
Mapping maintenance in XML p2p databases
DBPL'05 Proceedings of the 10th international conference on Database Programming Languages
Grid resource discovery using semantic communities
GCC'05 Proceedings of the 4th international conference on Grid and Cooperative Computing
SOFSEM'06 Proceedings of the 32nd conference on Current Trends in Theory and Practice of Computer Science
A framework for distributed XML data management
EDBT'06 Proceedings of the 10th international conference on Advances in Database Technology
BioFuice: mapping-based data integration in bioinformatics
DILS'06 Proceedings of the Third international conference on Data Integration in the Life Sciences
Architecture of a semantic XPath processor. application to digital rights management
EC-Web'05 Proceedings of the 6th international conference on E-Commerce and Web Technologies
DRAGO: distributed reasoning architecture for the semantic web
ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
Processing and optimization of complex queries in schema-based p2p-networks
DBISP2P'04 Proceedings of the Second international conference on Databases, Information Systems, and Peer-to-Peer Computing
Using information retrieval techniques to route queries in an infobeacons network
DBISP2P'04 Proceedings of the Second international conference on Databases, Information Systems, and Peer-to-Peer Computing
Peer-to-peer semantic integration of XML and RDF data sources
AP2PC'04 Proceedings of the Third international conference on Agents and Peer-to-Peer Computing
A simulation framework for schema-based query routing in p2p-networks
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
XPeer: a self-organizing XML P2P database system
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
Semantic query routing and processing in p2p database systems: the ICS-FORTH SQPeer middleware
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
Issues for robust consensus building in p2p networks
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Views for simplifying access to heterogeneous XML data
ODBASE'06/OTM'06 Proceedings of the 2006 Confederated international conference on On the Move to Meaningful Internet Systems: CoopIS, DOA, GADA, and ODBASE - Volume Part I
CoCache: query processing based on collaborative caching in P2P systems
DASFAA'05 Proceedings of the 10th international conference on Database Systems for Advanced Applications
PPSWR'05 Proceedings of the Third international conference on Principles and Practice of Semantic Web Reasoning
SDQNET: semantic distributed querying in loosely coupled data sources
ADBIS'06 Proceedings of the 10th East European conference on Advances in Databases and Information Systems
Interoperation between information spaces on the web
EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
A query algebra for XML p2p databases
EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
Semantic mappings in description logics for spatio-temporal database schema integration
Journal on Data Semantics III
Integrating and exchanging XML data using ontologies
Journal on Data Semantics VI
On semantically-augmented XML-Based p2p information systems
FQAS'06 Proceedings of the 7th international conference on Flexible Query Answering Systems
Choosing appropriate peer-to-peer infrastructure for your digital libraries
ICADL'05 Proceedings of the 8th international conference on Asian Digital Libraries: implementing strategies and sharing experiences
Towards an information quality approach to enhance query routing processes
Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services
An interest management scheme for mobile peer-to-peer systems
Proceedings of the Winter Simulation Conference
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The Semantic Web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. To this point, researchers have defined new languages for specifying meanings for concepts and developed techniques for reasoning about them, using RDF as the data model. To flourish, the Semantic Web needs to be able to accommodate the huge amounts of existing data and the applications operating on them. To achieve this, we are faced with two problems. First, most of the world's data is available not in RDF but in XML; XML and the applications consuming it rely not only on the domain structure of the data, but also on its document structure. Hence, to provide interoperability between such sources, we must map between both their domain structures and their document structures. Second, data management practitioners often prefer to exchange data through local point-to-point data translations, rather than mapping to common mediated schemas or ontologies.This paper describes the Piazza system, which addresses these challenges. Piazza offers a language for mediating between data sources on the Semantic Web, which maps both the domain structure and document structure. Piazza also enables interoperation of XML data with RDF data that is accompanied by rich OWL ontologies. Mappings in Piazza are provided at a local scale between small sets of nodes, and our query answering algorithm is able to chain sets mappings together to obtain relevant data from across the Piazza network. We also describe an implemented scenario in Piazza and the lessons we learned from it.