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» An Effective SPARQL Support over Relational Databases
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SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
14 years 28 days ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang
SIGMOD
2003
ACM
140views Database» more  SIGMOD 2003»
14 years 8 months ago
A Comprehensive XQuery to SQL Translation using Dynamic Interval Encoding
The W3C XQuery language recommendation, based on a hierarchical and ordered document model, supports a wide variety of constructs and use cases. There is a diversity of approaches...
David DeHaan, David Toman, Mariano P. Consens, M. ...
NGITS
1999
Springer
14 years 29 days ago
Multiplex: A Formal Model for Multidatabases and Its Implementation
The integration of information from multiple databases has been an enduring subject of research for over 20 years, and many different solutions have been attempted or proposed. Mis...
Amihai Motro
BTW
2007
Springer
153views Database» more  BTW 2007»
14 years 21 days ago
Efficient Time-Travel on Versioned Text Collections
: The availability of versioned text collections such as the Internet Archive opens up opportunities for time-aware exploration of their contents. In this paper, we propose time-tr...
Klaus Berberich, Srikanta J. Bedathur, Gerhard Wei...
HICSS
2007
IEEE
164views Biometrics» more  HICSS 2007»
14 years 3 months ago
A Multipurpose Code Coverage Tool for Java
Most test coverage analyzers help in evaluating the effectiveness of testing by providing data on statement and branch coverage achieved during testing. If made available, the cov...
Raghu Lingampally, Atul Gupta, Pankaj Jalote