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» Querying RDF Data Using A Multigraph-based Approach
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128
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AMW
2010
15 years 4 months ago
Certification and Authentication of Data Structures
We study query authentication schemes, algorithmic and cryptographic constructions that provide efficient and secure protocols for verifying the results of queries over structured...
Roberto Tamassia, Nikos Triandopoulos
120
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JSS
2011
114views more  JSS 2011»
14 years 5 months ago
An approach to process continuous location-dependent queries on moving objects with support for location granules
Location-based services have attracted the attention of important research in the field of mobile computing. Specifically, different mechanisms have been proposed to process loc...
Sergio Ilarri, Carlos Bobed, Eduardo Mena
171
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SIGMOD
2007
ACM
141views Database» more  SIGMOD 2007»
16 years 2 months ago
Assisted querying using instant-response interfaces
We demonstrate a novel query interface that enables users to construct a rich search query without any prior knowledge of the underlying schema or data. The interface, which is in...
Arnab Nandi, H. V. Jagadish
DKE
2006
110views more  DKE 2006»
15 years 2 months ago
Efficient recursive XML query processing using relational database systems
Recursive queries are quite important in the context of XML databases. In addition, several recent papers have investigated a relational approach to store XML data and there is gr...
Sandeep Prakash, Sourav S. Bhowmick, Sanjay Kumar ...
SEMWEB
2010
Springer
15 years 13 days ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin