Abstract — Voice plays a vital role in distant communications like video conferencing, teleconferencing and hands free mobile conversion etc. Here, the quality of speech is degraded by the Cocktail party problem. Cocktail party problem is described as combination of various sources of speech signal received by a microphone. Solution for the above problem can be obtained by using Independent com...

This study presents a modified infomax model of Independent Component Analysis (ICA) for the source separation problem of fMRI data. Functional MRI data is processed by different blind source separation techniques including Independent Component Analysis (ICA). ICA is a statistical decomposition method used for multivariate data source separation. ICA algorithm is based on independence of extra...

In prior work, we developed a beamforming algorithm intended for automatic recognition of speech data captured with an array of distant microphones. In addition to enforcing a distortionless contraint in a desired direction, we adjusted the sensor weights so as to maximimize a negentropy criterion. Negentropy is a measure of how non-Gaussian the probability density function (pdf) of a random va...

The Fusion and Syntropy Object-Oriented methods reflect some of the most rigorous object-oriented modeling concepts and experiences currently available. In this paper we identify similarities and differences between the two methods, and discuss how the best concepts from each of these methods can be combined to obtain clearer, more precise analysis models, specifications, and designs, and can b...

This paper presents a five-valued representation of bifuzzy sets. This representation is related to a five-valued logic that uses the following values: true, false, inconsistent, incomplete and ambiguous. In the framework of fivevalued representation, formulae for similarity, entropy and syntropy of bifuzzy sets are constructed.

Suppose f is a density that is close to that of a standard normal, φ. For the first time, exact expressions are given for the negentropy, the differential entropy, and related quantities such as ∫ f r/φr−1 for r = 2, 3, . . . in terms of cumulants. Our expressions could have widespread use.

Thermodynamics problems for the single-phase-lagging (SPL) model have not been much studied. In this paper, the violation of the second law of thermodynamics by the SPL model is studied from two perspectives, which are the negative entropy production rate and breaking equilibrium spontaneously. The methods for the SPL model to avoid the negative entropy production rate are proposed, which are e...