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SIGMOD
2002
ACM
119views Database» more  SIGMOD 2002»
14 years 8 months ago
Rate-based query optimization for streaming information sources
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
Stratis Viglas, Jeffrey F. Naughton
SIGMOD
2002
ACM
145views Database» more  SIGMOD 2002»
14 years 8 months ago
Continuously adaptive continuous queries over streams
We present a continuously adaptive, continuous query (CACQ) implementation based on the eddy query processing framework. We show that our design provides significant performance b...
Samuel Madden, Mehul A. Shah, Joseph M. Hellerstei...
WEBDB
1999
Springer
110views Database» more  WEBDB 1999»
14 years 1 days ago
A Framework for Navigation-Driven Lazy Mediators
We propose a framework for navigation-driven evaluation of virtual mediated views. The approach is based on lazy mediators that translate incoming client navigations on a virtual ...
Bertram Ludäscher, Yannis Papakonstantinou, P...
ESWS
2008
Springer
13 years 9 months ago
Streaming SPARQL - Extending SPARQL to Process Data Streams
A lot of work has been done in the area of data stream processing. Most of the previous approaches regard only relational or XML based streams but do not cover semantically richer ...
Andre Bolles, Marco Grawunder, Jonas Jacobi
ICDE
2005
IEEE
160views Database» more  ICDE 2005»
14 years 1 months ago
NXS: Native XML processing in Sybase RDBMS
Sybase's flagship database product, Adaptive Server Enterprise provides Native XML processing (NXS) support. In this paper we present our experience related to query processi...
Anupam Singh, Srikanth Sampath, Vadiraja Bhatt, Fr...