Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
The state of the art in distributed query processing
ACM Computing Surveys (CSUR)
Index structures and algorithms for querying distributed RDF repositories
Proceedings of the 13th international conference on World Wide Web
Proceedings of the 17th international conference on World Wide Web
An Experimental Comparison of RDF Data Management Approaches in a SPARQL Benchmark Scenario
ISWC '08 Proceedings of the 7th International Conference on The Semantic Web
SP^2Bench: A SPARQL Performance Benchmark
ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering
LUBM: A benchmark for OWL knowledge base systems
Web Semantics: Science, Services and Agents on the World Wide Web
Data summaries for on-demand queries over linked data
Proceedings of the 19th international conference on World wide web
Querying distributed RDF data sources with SPARQL
ESWC'08 Proceedings of the 5th European semantic web conference on The semantic web: research and applications
Semantics and optimization of the SPARQL 1.1 federation extension
ESWC'11 Proceedings of the 8th extended semantic web conference on The semanic web: research and applications - Volume Part II
FedX: a federation layer for distributed query processing on linked open data
ESWC'11 Proceedings of the 8th extended semantic web conference on The semanic web: research and applications - Volume Part II
Database foundations for scalable RDF processing
RW'11 Proceedings of the 7th international conference on Reasoning web: semantic technologies for the web of data
FedBench: a benchmark suite for federated semantic data query processing
ISWC'11 Proceedings of the 10th international conference on The semantic web - Volume Part I
Semantic navigation on the web of data: specification of routes, web fragments and actions
Proceedings of the 21st international conference on World Wide Web
H2RDF: adaptive query processing on RDF data in the cloud.
Proceedings of the 21st international conference companion on World Wide Web
Enhancing source selection for live queries over linked data via query log mining
JIST'11 Proceedings of the 2011 joint international conference on The Semantic Web
Evaluating graph traversal algorithms for distributed SPARQL query optimization
JIST'11 Proceedings of the 2011 joint international conference on The Semantic Web
A DHT-Based system for the management of loosely structured, multidimensional data
Transactions on Large-Scale Data- and Knowledge-Centered Systems VI
On publishing linked open government data
Proceedings of the 17th Panhellenic Conference on Informatics
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The Web has evolved from a global information space of linked documents to a web of linked data. The Web of Data enables answering complex, structured queries that could not be answered by a single data source alone. While the current procedure to work with multiple, distributed linked data sources is to load the desired data into a single RDF store and process queries in a centralized way against the merged data set, such an approach may not always be practically feasible or desired. In this paper, we analyze alternative approaches to federated query processing over linked data and how different design alternatives affect the performance and practicality of query processing. To this end, we define a benchmark for federated query processing, comprising a selection of data sources in various domains and representative queries. Using the benchmark, we perform experiments with different federation alternatives and provide insights about their advantages and disadvantages.