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» The Symbol Grounding Problem
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PODS
2004
ACM
158views Database» more  PODS 2004»
15 years 9 months ago
Composing Schema Mappings: Second-Order Dependencies to the Rescue
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
ICDE
2010
IEEE
219views Database» more  ICDE 2010»
15 years 9 months ago
PIP: A Database System for Great and Small Expectations
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
Oliver Kennedy, Christoph Koch
VTC
2008
IEEE
127views Communications» more  VTC 2008»
15 years 3 months ago
A Low-Complexity Precoder for Large Multiuser MISO Systems
—In this paper, we consider the problem of precoding in large multiuser MISO systems, where by ‘large’ we mean i) large number of transmit antennas (Nt) at the base station o...
Saif K. Mohammed, Ananthanarayanan Chockalingam, B...
CSFW
2007
IEEE
15 years 3 months ago
Creating Vulnerability Signatures Using Weakest Preconditions
Signature-based tools such as network intrusion detection systems are widely used to protect critical systems. Automatic signature generation techniques are needed to enable these...
David Brumley, Hao Wang, Somesh Jha, Dawn Xiaodong...
QEST
2007
IEEE
15 years 3 months ago
GRIP: Generic Representatives in PRISM
We give an overview of GRIP, a symmetry reduction tool for the probabilistic model checker PRISM, together with experimental results for a selection of example specifications. 1 ...
Alastair F. Donaldson, Alice Miller, David Parker