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» Collecting and Maintaining Just-in-Time Statistics
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CGO
2010
IEEE
13 years 10 months ago
Automated just-in-time compiler tuning
Managed runtime systems, such as a Java virtual machine (JVM), are complex pieces of software with many interacting components. The Just-In-Time (JIT) compiler is at the core of t...
Kenneth Hoste, Andy Georges, Lieven Eeckhout
SIGMOD
2005
ACM
174views Database» more  SIGMOD 2005»
13 years 9 months ago
Automated statistics collection in action
If presented with inaccurate statistics, even the most sophisticated query optimizers make mistakes. They may wrongly estimate the output cardinality of a certain operation and th...
Peter J. Haas, Mokhtar Kandil, Alberto Lerner, Vol...
VLDB
2004
ACM
124views Database» more  VLDB 2004»
13 years 9 months ago
Automated Statistics Collection in DB2 UDB
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
Ashraf Aboulnaga, Peter J. Haas, Sam Lightstone, G...
PPDP
2010
Springer
13 years 2 months ago
Deriving predicate statistics in datalog
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
Senlin Liang, Michael Kifer
ERCIMDL
2005
Springer
114views Education» more  ERCIMDL 2005»
13 years 9 months ago
Compressing Dynamic Text Collections via Phrase-Based Coding
We present a new statistical compression method, which we call Phrase Based Dense Code (PBDC), aimed at compressing large digital libraries. PBDC compresses the text collection to ...
Nieves R. Brisaboa, Antonio Fariña, Gonzalo...