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» Parameterized pattern queries
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157
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EDBT
2012
ACM
228views Database» more  EDBT 2012»
13 years 5 months ago
Towards scalable data integration under constraints
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
George Konstantinidis, José Luis Ambite
187
Voted
ICDE
2007
IEEE
125views Database» more  ICDE 2007»
16 years 4 months ago
Collecting and Maintaining Just-in-Time Statistics
Traditional DBMSs decouple statistics collection and query optimization both in space and time. Decoupling in time may lead to outdated statistics. Decoupling in space may cause s...
Amr El-Helw, Ihab F. Ilyas, Wing Lau, Volker Markl...
209
Voted
VLDB
2007
ACM
115views Database» more  VLDB 2007»
16 years 2 months ago
NS2: Networked Searchable Store with Correctness
In an outsourced data framework, we introduce and demonstrate mechanisms for securely storing a set of data items (documents) on an un-trusted server, while allowing for subsequen...
Radu Sion, Sumeet Bajaj, Bogdan Carbunar, Stefan K...
142
Voted
DEBS
2009
ACM
15 years 9 months ago
Distributed event stream processing with non-deterministic finite automata
Efficient matching of incoming events to persistent queries is fundamental to event pattern matching, complex event processing, and publish/subscribe systems. Recent processing e...
Lars Brenna, Johannes Gehrke, Mingsheng Hong, Dag ...
AICCSA
2005
IEEE
112views Hardware» more  AICCSA 2005»
15 years 8 months ago
Multilevel chunking of multidimensional arrays
Multidimensional arrays have become very common in scientific and business applications. Such arrays are usually very large and hence they are stored on secondary or tertiary stor...
A. S. Sawires, Nagwa M. El-Makky, Khalil M. Ahmed