1088 search results - page 134 / 218 » Probabilistic query expansion using query logs |
UAI
2000
13 years 10 months ago
2000
Techniques for plan recognition under uncertainty require a stochastic model of the plangeneration process. We introduce probabilistic state-dependent grammars (PSDGs) to represen...
STOC
2004
ACM
14 years 9 months ago
2004
ACM
The main result of this paper is a near-optimal derandomization of the affine homomorphism test of Blum, Luby and Rubinfeld (Journal of Computer and System Sciences, 1993). We sho...
UAI
2003
13 years 10 months ago
2003
We investigate the use of probabilistic models and cost-benefit analyses to guide the operation of a Web-based question-answering system. We first provide an overview of research ...
PODS
2007
ACM
14 years 9 months ago
2007
ACM
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
POPL
2002
ACM
14 years 9 months ago
2002
ACM
Probability distributions are useful for expressing the meanings of probabilistic languages, which support formal modeling of and reasoning about uncertainty. Probability distribu...