JMLR

2012

12 years 14 days ago
2012

Many real-world problems are inherently hierarchically structured. The use of this structure in an agent’s policy may well be the key to improved scalability and higher performa...

EMNLP

2011

12 years 9 months ago
2011

We discuss and analyze the problem of ﬁnding a distribution that minimizes the relative entropy to a prior distribution while satisfying max-norm constraints with respect to an ...

CORR

2011

Springer

13 years 1 months ago
2011

Springer

This paper provides a succinct proof of a 1973 theorem of Lieb that establishes the concavity of a certain trace function. The development relies on a deep result from quantum info...

CCE

2011

13 years 4 months ago
2011

The robustness of a system is a property that pervades all aspects of Nature. The ability of a system to adapt itself to perturbations due to internal and external agents, to agin...

TIT

2010

13 years 4 months ago
2010

A random variable with distribution P is observed in Gaussian noise and is estimated by a minimum meansquare estimator that assumes that the distribution is Q. This paper shows tha...

CORR

2011

Springer

13 years 5 months ago
2011

Springer

Let X be a non-negative random variable and let the conditional distribution of a random variable Y , given X, be Poisson(γ · X), for a parameter γ ≥ 0. We identify a natural...

IJNSEC

2007

13 years 10 months ago
2007

In this paper, we propose a discrete cosine transform (DCT) based spread spectrum data-hiding algorithm that is resilient to statistical attacks. Unlike other spread spectrum base...

SSWMC

2004

13 years 11 months ago
2004

We study a detection-theoretic approach to steganalysis. The relative entropy between covertext and stegotext determines the steganalyzer's difficulty in discriminating them,...

COLT

2006

Springer

14 years 4 hour ago
2006

Springer

There are two main families of on-line algorithms depending on whether a relative entropy or a squared Euclidean distance is used as a regularizer. The difference between the two f...

COLT

1995

Springer

14 years 1 months ago
1995

Springer

We investigate the problem of estimating the proportion vector which maximizes the likelihood of a given sample for a mixture of given densities. We adapt a framework developed for...