725 search results - page 127 / 145 » Data access optimization on grid systems |
100
click to vote
ISCA
2010
IEEE
15 years 4 months ago
2010
IEEE
DRAM vendors have traditionally optimized the cost-perbit metric, often making design decisions that incur energy penalties. A prime example is the overfetch feature in DRAM, wher...
215
click to vote
ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...
EDBT
2006
ACM
15 years 12 months ago
2006
ACM
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
CIKM
2009
Springer
15 years 3 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
200
click to vote
ICDE
2005
IEEE
16 years 1 months ago
2005
IEEE
Query processing in traditional information management systems has moved from an exact match model to more flexible paradigms allowing cooperative retrieval by aggregating the dat...