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217
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VLDB
2002
ACM
184views Database» more  VLDB 2002»
15 years 11 months ago
Database indexing for large DNA and protein sequence collections
Our aim is to develop new database technologies for the approximate matching of unstructured string data using indexes. We explore the potential of the suffix tree data structure i...
Ela Hunt, Malcolm P. Atkinson, Robert W. Irving
SIGMOD
2009
ACM
291views Database» more  SIGMOD 2009»
15 years 11 months ago
Partial join order optimization in the paraccel analytic database
The ParAccel Analytic DatabaseTM is a fast shared-nothing parallel relational database system with a columnar orientation, adaptive compression, memory-centric design, and an enha...
Yijou Chen, Richard L. Cole, William J. McKenna, S...
93
Voted
SIGMOD
2004
ACM
142views Database» more  SIGMOD 2004»
15 years 11 months ago
Conditional Selectivity for Statistics on Query Expressions
Cardinality estimation during query optimization relies on simplifying assumptions that usually do not hold in practice. To diminish the impact of inaccurate estimates during opti...
Nicolas Bruno, Surajit Chaudhuri
102
Voted
PODS
2002
ACM
138views Database» more  PODS 2002»
15 years 11 months ago
Fast Algorithms For Hierarchical Range Histogram Construction
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
Sudipto Guha, Nick Koudas, Divesh Srivastava
84
Voted
EDBT
2008
ACM
150views Database» more  EDBT 2008»
15 years 11 months ago
Cost-based query optimization for complex pattern mining on multiple databases
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...
Ruoming Jin, David Fuhry, Abdulkareem Alali