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» On the Structure of Low Sets
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SIGMOD
2004
ACM
184views Database» more  SIGMOD 2004»
16 years 7 months ago
CORDS: Automatic Discovery of Correlations and Soft Functional Dependencies
The rich dependency structure found in the columns of real-world relational databases can be exploited to great advantage, but can also cause query optimizers--which usually assum...
Ihab F. Ilyas, Volker Markl, Peter J. Haas, Paul B...
CHI
2010
ACM
16 years 1 months ago
Real time search user behavior
Real time search is an increasingly important area of information seeking on the Web. In this research, we analyze 1,005,296 user interactions with a real time search engine over ...
Bernard J. Jansen, Gerry Campbell, Matthew Gregg
TPHOL
2009
IEEE
16 years 1 months ago
A Formalisation of Smallfoot in HOL
In this paper a general framework for separation logic inside the HOL theorem prover is presented. This framework is based on Abeparation Logic. It contains a model of an abstract,...
Thomas Tuerk
GECCO
2009
Springer
16 years 1 months ago
Dynamic evolutionary optimisation: an analysis of frequency and magnitude of change
In this paper, we rigorously analyse how the magnitude and frequency of change may affect the performance of the algorithm (1+1) EAdyn on a set of artificially designed pseudo-Bo...
Philipp Rohlfshagen, Per Kristian Lehre, Xin Yao
SSD
2009
Springer
180views Database» more  SSD 2009»
16 years 1 months ago
Indexing Moving Objects Using Short-Lived Throwaway Indexes
With the exponential growth of moving objects data to the Gigabyte range, it has become critical to develop effective techniques for indexing, updating, and querying these massive ...
Jens Dittrich, Lukas Blunschi, Marcos Antonio Vaz ...