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» A pretopological approach for structural analysis
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SIGMOD
2004
ACM
184views Database» more  SIGMOD 2004»
16 years 6 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...
PODS
2005
ACM
151views Database» more  PODS 2005»
16 years 6 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
PLDI
2009
ACM
16 years 27 days ago
On PDG-based noninterference and its modular proof
We present the first machine-checked correctness proof for information flow control (IFC) based on program dependence graphs (PDGs). IFC based on slicing and PDGs is flow-sensi...
Daniel Wasserrab, Denis Lohner, Gregor Snelting
AI
2009
Springer
16 years 22 days ago
Opinion Learning without Emotional Words
This paper shows that a detailed, although non-emotional, description of event or an action can be a reliable source for learning opinions. Empirical results show the practical uti...
Marina Sokolova, Guy Lapalme
ATAL
2009
Springer
16 years 21 days ago
Operational semantics of goal models in adaptive agents
Several agent-oriented software engineering methodologies address the emerging challenges posed by the increasing need of adaptive software. A common denominator of such methodolo...
Mirko Morandini, Loris Penserini, Anna Perini