This paper proposes several methods for noise reduction using deterministic side information about the desired signal as a constraint on the reconstruction. Two forms of side information are considered separately: short-time linear predictive coefficients, and short-time zero-phase impulse response coefficients. We derive general expressions for the ML, MAP and MMSE estimators, and develop algo...

Chagas cardiomyopathy is the most severe clinical manifestation of chronic Chagas disease. The disease affects most of the Latin American countries, being considered one of the leading causes of morbidity and death in the continent. The pathogenesis of Chagas cardiomyopathy is very complex, with mechanisms involving parasite-dependent cytopathy, immune-mediated myocardial damage and neurogenic ...

Two-dimensional string theory is known to contain the set of discrete states that are the SU(2) multiplets generated by the lowering operator of the SU(2) current algebra. Their structure constants are defined by the area preserving diffeomorphisms in two dimensions. In this paper we show that the interaction of d = 2 superstrings with the superconformal β − γ ghosts enlarges the actual algebra...

General angular momentum recoupling coefficients can be expressed as a summation formula over products of 6-j coefficients. Yutsis, Levinson and Vanagas developed graphical techniques for representing the general recoupling coefficient as a cubic graph and they describe a set of reduction rules allowing a stepwise generation of the corresponding summation formula. This paper gives an overview o...

Computation reduction is important for the implementation of software video codecs. This paper describes a scheme for reducing the required computations in video encoders by skipping some of the Discrete Cosine Transform (DCT) and quantization calculations. We study the relationship between the Mean Absolute Error (MAE) of the motion compensated difference blocks and the distribution of DCT coe...

A novel fusion approach for Language Identification called Languagedependent Fusion (LDF) is presented in this paper. A fusion system is a hybrid system which fuses the results from several individual sub-systems which utilize varied features, models, and/or classifiers. In LDF, instead of applying single fixed weighting coefficients to each sub-system, which happens in conventional approach su...

This paper deals with the collapsing knapsack problem. In the literature, to solve the problem, a method incorporating a reduction from the problem to the 0-1 knapsack problem has been proposed. In this paper we show an alternative reduction which produces coefficients smaller than those by the previous. rlOUS. The improvement makes it possible to solve the resulting 0-1 knapsack problem faster...

This paper is concerned with the approximation of effective coefficients in homogenization of linear elliptic equations. One common drawback among numerical homogenization methods is the presence of the so-called resonance error, which roughly speaking is a function of the ratio ε/η, where η is a typical macroscopic lengthscale and ε is the typical size of the heterogeneities. In the present wo...