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SIGIR
2010
ACM
15 years 1 months ago
Estimation of statistical translation models based on mutual information for ad hoc information retrieval
As a principled approach to capturing semantic relations of words in information retrieval, statistical translation models have been shown to outperform simple document language m...
Maryam Karimzadehgan, ChengXiang Zhai
ICC
2011
IEEE
219views Communications» more  ICC 2011»
13 years 9 months ago
Deterministic Equivalents for the Performance Analysis of Isometric Random Precoded Systems
—We consider a general wireless channel model for different types of code-division multiple access (CDMA) and space-division multiple-access (SDMA) systems with isometric random ...
Jakob Hoydis, Romain Couillet, Mérouane Deb...
ADVCS
2008
83views more  ADVCS 2008»
14 years 8 months ago
Information Flows in Causal Networks
We introduce a notion of causal independence based on virtual intervention, which is a fundamental concept of the theory of causal networks. Causal independence allows for de ning ...
Nihat Ay, Daniel Polani
COLING
1996
14 years 11 months ago
An Underspecified HPSG Representation for Information Structure
hfformation structure can be of great use in linguistic applications, especially in those involving a speech component. However, focus marking by prosody is often ambiguous. Exist...
Jonas Kuhn
SYNTHESE
2010
88views more  SYNTHESE 2010»
14 years 4 months ago
Proposition-valued random variables as information
The notion of a proposition as a set of possible worlds or states occupies central stage in probability theory, semantics and epistemology, where it serves as the fundamental unit...
Richard Bradley