Concept
Dirichlet distribution
Related publications (123)
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We tackle the problem of improving the relevance of automatically selected tags in large-scale ontology-based information systems. Contrary to traditional settings where tags can be chosen arbitrarily, we focus on the problem of recommending tags (e.g., co ...
Springer2012Compressive sensing meets game theory
We introduce the Multiplicative Update Selector and Estimator (MUSE) algorithm for sparse approximation in under-determined linear regression problems. Given ƒ = Φα* + μ, the MUSE provably and efficiently finds a k-sparse vector α̂ such that ∥Φα̂ − ƒ∥∞ ≤ ∥ ...
IEEE2011A Probabilistic Approach to Socio-Geographic Reality Mining
As we live our daily lives, our surroundings know about it. Our surroundings consist of people, but also our electronic devices. Our mobile phones, for example, continuously sense our movements and interactions. This socio-geographic data could be continuo ...
EPFL2011Integration of Eye-tracking Methods in Visual Comfort Assessments
Marilyne Andersen, Mandana Sarey Khanie
Discomfort glare, among different aspects of visual discomfort is a phenomenon which is little understood and hard to quantify. As this phenomenon is dependent on the building occupant’s view direction and on the relative position of the glare source, a de ...
2011Scalar and pseudoscalar Higgs production in association with a top-antitop pair
We present the calculation of scalar and pseudoscalar Higgs production in association with a top-antitop pair to the next-to-leading order (NLO) accuracy in QCD, interfaced with parton showers according to the MC@NLO formalism. We apply our results to the ...
2011Learning in Gaussian Markov random fields
This paper addresses the problem of state estimation in the case where the prior distribution of the states is not perfectly known but instead is parameterized by some unknown parameter. Thus in order to support the state estimator with prior information o ...
2010Tight Bounds on the Capacity of Binary Input random CDMA Systems
Nicolas Macris, Satish Babu Korada
We consider multiple access communication on a binary input additive white Gaussian noise channel using randomly spread code division. For a general class of symmetric distributions for spreading coefficients, in the limit of a large number of users, we pr ...
2010Phase behaviour of the symmetric binary mixture from Thermodynamic Perturbation Theory
Nicolas Dorsaz, Giuseppe Foffi
We study the phase behaviour of symmetric binary mixtures of hard core Yukawa (HCY) particles via thermodynamic perturbation theory (TPT). We show that all the topologies of phase diagram reported for the symmetric binary mixtures are correctly reproduced ...
2010Distinguishing Distributions Using Chernoff Information
Serge Vaudenay, Pouyan Sepehrdad, Thomas Baignères
In this paper, we study the soundness amplification by repetition of cryptographic protocols. As a tool, we use the Chernoff Information. We specify the number of attempts or samples required to distinguish two distributions efficiently in various protocol ...
Springer2010An indirect assessment on the impact of connectivity of conductivity classes upon longitudinal asymptotic macrodispersivity
Solute transport takes place in heterogeneous porous formations, with the log conductivity, Y = ln K, modeled as a stationary random space function of given univariate normal probability density function (pdf) with mean Y, variance σY2, and integral scale ...
American Geophysical Union2010