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» Indexing Distributed Complex Data for Complex Queries
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SIGIR
2006
ACM
16 years 1 days ago
Hybrid index maintenance for growing text collections
We present a new family of hybrid index maintenance strategies to be used in on-line index construction for monotonically growing text collections. These new strategies improve up...
Stefan Büttcher, Charles L. A. Clarke, Brad L...
ADBIS
2010
Springer
192views Database» more  ADBIS 2010»
15 years 7 months ago
The Objects Interaction Graticule for Cardinal Direction Querying in Moving Objects Data Warehouses
Cardinal directions have turned out to be very important qualitative spatial relations due to their numerous applications in spatial wayfinding, GIS, qualitative spatial reasoning ...
Ganesh Viswanathan, Markus Schneider
FLAIRS
2007
15 years 8 months ago
Finding Data, Knowledge, and Answers on the Semantic Web
Web search engines like Google have made us all smarter by providing ready access to the world's knowledge whenever we need to look up a fact, learn about a topic or evaluate...
Timothy W. Finin, Joel Sachs, Cynthia Sims Parr
EDBT
2009
ACM
175views Database» more  EDBT 2009»
16 years 27 days ago
Towards materialized view selection for distributed databases
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
Leonardo Weiss Ferreira Chaves, Erik Buchmann, Fab...
PODC
2010
ACM
15 years 10 months ago
Brief announcement: on the quest of optimal service ordering in decentralized queries
This paper deals with pipelined queries over services. The execution plan of such queries defines an order in which the services are called. We present the theoretical underpinni...
Efthymia Tsamoura, Anastasios Gounaris, Yannis Man...