“Informatics and Applications” scientific journal

Volume 2, Issue 4, 2008

Content   Abstract and Keywords   About Authors

A DISINTEGRATED PACKET SWITCHING ARCHITECTURE

• I.A. Sokolov. IPI RAN. isokolov@ipiran.ru
• V.B. Egorov. IPI RAN. vegorov@ipiran.ru

Abstract:  The proposed disintegrated switching architecture enables the designers to create conventional and routing packet switches featuring enlarged performance.

Keywords: packet switch; integrated communication microcontroller; QUICC; PowerQUICC

MEDIAN MODIFICATION OF EM- AND SEM-ALGORITHMS FOR SEPARATION OFMIXTURES OF PROBABILITY DISTRIBUTIONS AND THEIR APPLICATION TO THE DECOMPOSITION OF VOLATILITY OF FINANCIAL TIME SERIES

• A.K. Gorshenin.  Department of Mathematical Statistics, Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University. andygorshenin@gmail.com
• V. Yu. Korolev. Department of Mathematical Statistics, Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University, IPI RAN. vkorolev@comtv.ru
• A.M. Tursunbayev.  Department of Mathematical Statistics, Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University

Abstract:  Median modofications of EM- and SEM-algorithms are proposed for separation of mixtures of normal distributions. The advantages of the proposed algorithms over standard methods are illustrated by the numerical solution of the problem of decomposition of volatility of financial indices.

Keywords:  separation mixtures of probability distributions; robustness; efficiency; EM-algorithm; SEM-algorithm; volatility

SPLITTING OF DISTRIBUTION MIXTURE IN TWO COMPONENTS

• M. P. Krivenko.  IPI RAN. mkrivenko@ipiran.ru

Abstract:  The problems of splitting the distribution mixture in two components and of estimating mixture parameters are examined if samples from distribution mixture and from one of components are presented. Two methods of parameters estimation are suggested, as well as corresponding algorithms are constructed and examined.

Keywords:  mixture of normal distributions; splitting of distribution mixture; EM-algorithm

CONTINUOUS-TIME NON-HOMOGENEOUS RECURRENT RELIABILITY VARIATIONMODELS FOR MODIFIABLE SYSTEMS

• S. V. Artyukhov.  Vneshprombank. ArtyuhovSV@yandex.ru
• V. Yu. Korolev. Department of Mathematical Statistics, Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University, IPI RAN. vkorolev@comtv.ru

Abstract: Estimates of convergence rate in limit theorems for compound doubly stochastic Poisson processes (compound Cox processes) are used for a more accurate description of the behavior of reliability of complex modifiable technical and information systems within the framework of continuous-time non-homogeneous recurrent reliability variation models

Keywords:  compound doubly stochastic Poisson process; compound Cox process; reliability variation model; availability function; guaranteed confidence bounds

INFORMATION TECHNOLOGY OF USING FACIAL BIOMETRICS FOR INCREASING AFIS THROUGHPUT

• O. S. Ushmaev.  IPI RAN. oushmaev@ipiran.ru

Abstract:  Nowadays, multimodal biometrics is rapidly replacing tedious procedures of identification. Particularly operating and perspective civil ID systems use multimodal approach. The formal method for designing high-speed multibiometric technologies and systems is suggested. The effectiveness of the approach is shown by an example of developed experimental software with service-oriented architecture.

Keywords:  biometric identification; multimodal biometrics; platform independent; service-oriented architecture

TIME INTERVALS AS OBJECTS OF A GENERAL-PURPOSE OPERATING SYSTEM

• V. Yegorov.  Penza State University; CryptoSoft Corp. vec@cryptosoft.r
• E.Matveev. CryptoSoft Corp. eugene@cryptosoft.ru

Abstract: The main goal of this paper is to describe a new type of the general-purpose operating system object - the time interval object, which allows a general-purpose operating system to act as a real-time operating system.

Keywords:  operating system; real time; time interval; extension of C language; hardware interrupt controller; multiprocessor system

EUROWORDNET: OBJECTIVES, STRUCTURE, AND RELATIONSHIPS

• O. Kozhunova.  IPI RAN. okozhunova@ipiran.ru

Abstract:  In the review, brief desciption of the EuroWordNet tool, history of its creation, examples of the similar resources, its objectives, structure, and relationships are given.

Keywords:  lexical and semantic resource EuroWordNet; WordNet dictionaries; thesaurus; sinset; language relationships; OnterLingual Index ILI