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SIGMOD
2008
ACM
145views Database» more  SIGMOD 2008»
14 years 10 months ago
Optimizing complex queries with multiple relation instances
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
Yu Cao, Gopal C. Das, Chee Yong Chan, Kian-Lee Tan
SIGMOD
2008
ACM
206views Database» more  SIGMOD 2008»
14 years 10 months ago
Ad-hoc aggregations of ranked lists in the presence of hierarchies
A variety of web sites and web based services produce textual lists at varying time granularities ranked according to several criteria. For example, Google Trends produces lists o...
Nilesh Bansal, Sudipto Guha, Nick Koudas
EDBT
2008
ACM
118views Database» more  EDBT 2008»
14 years 10 months ago
Robustness in automatic physical database design
Automatic physical database design tools rely on "what-if" interfaces to the query optimizer to estimate the execution time of the training query workload under differen...
Kareem El Gebaly, Ashraf Aboulnaga
CGO
2010
IEEE
14 years 4 months ago
Integrated instruction selection and register allocation for compact code generation exploiting freeform mixing of 16- and 32-bi
For memory constrained embedded systems code size is at least as important as performance. One way of increasing code density is to exploit compact instruction formats, e.g. ARM T...
Tobias J. K. Edler von Koch, Igor Böhm, Bj&ou...
ICS
2009
Tsinghua U.
14 years 4 months ago
QuakeTM: parallelizing a complex sequential application using transactional memory
“Is transactional memory useful?” is the question that cannot be answered until we provide substantial applications that can evaluate its capabilities. While existing TM appli...
Vladimir Gajinov, Ferad Zyulkyarov, Osman S. Unsal...