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» On Tractability and Congruence Distributivity
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PODS
2012
ACM
297views Database» more  PODS 2012»
12 years 1 months ago
Query-based data pricing
Data is increasingly being bought and sold online, and Webbased marketplace services have emerged to facilitate these activities. However, current mechanisms for pricing data are ...
Paraschos Koutris, Prasang Upadhyaya, Magdalena Ba...
PLDI
2012
ACM
12 years 1 months ago
Speculative linearizability
Linearizability is a key design methodology for reasoning about tations of concurrent abstract data types in both shared memory and message passing systems. It provides the illusi...
Rachid Guerraoui, Viktor Kuncak, Giuliano Losa
ICIP
2000
IEEE
15 years 15 days ago
Hierarchical Image Probability (HIP) Models
We formulate a model for probability distributions on image spaces. We show that any distribution of images can be factored exactly into conditional distributions of feature vecto...
Clay Spence, Lucas C. Parra, Paul Sajda
KR
1992
Springer
14 years 3 months ago
Learning Useful Horn Approximations
While the task of answering queries from an arbitrary propositional theory is intractable in general, it can typicallybe performed e ciently if the theory is Horn. This suggests t...
Russell Greiner, Dale Schuurmans
UAI
2004
14 years 9 days ago
Bayesian Learning in Undirected Graphical Models: Approximate MCMC Algorithms
Bayesian learning in undirected graphical models--computing posterior distributions over parameters and predictive quantities-is exceptionally difficult. We conjecture that for ge...
Iain Murray, Zoubin Ghahramani