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1.
2.
Dragan Simić Svetlana Simić 《Soft Computing - A Fusion of Foundations, Methodologies and Applications》2007,11(12):1185-1192
A concept of business intelligent system for financial prediction is considered in this paper. It provides data needed for
fast, precise and good business decision support to all levels of management. The aim of the project is the development of
a new online analytical processing oriented on case-based reasoning (CBR) where a previous experience for every new problem
is taken into account. Methodological aspects have been tested in practice as a part of the management information system
development project of “Novi Sad Fair”. A case study of an improved application of CBR in prediction of future payments is
discussed in the paper.
This paper is originally presented at The International Conference on Hybrid Information Technology 2006, at the special session
on “Intelligent Information Systems for Financial Engineering”, November 2006 in Cheju Island, Korea. 相似文献
3.
A. K. Komarov 《Optoelectronics, Instrumentation and Data Processing》2007,43(3):274-277
Passive mode-locking with equidistant ultrashort pulses in the laser cavity due to additional weak modulation of the losses
or the refractive index is analyzed. The velocity of the relative pulse motion and the time of establishing the harmonic passive
mode-locking mode are analytically estimated.
Original Russian Text ¢ A.K. Komarov, 2007, published in Avtometriya, 2007, Vol. 43, No. 3, pp. 100–104. 相似文献
4.
A. F. Shevchenko A. V. Komarov O. I. Novokreschenov V. V. Mizevich 《Russian Electrical Engineering》2007,78(9):478-480
Results of the development of a direct-drive electromechanical steering booster (ESB) for a passenger car are considered. Technical characteristics of the ESB and the results of the calculations of characteristics and the simulation of the magnetic system are presented. Availability of application of magnetoelectric motors with fractional tooth windings in the ESB is shown. 相似文献
5.
S. M. Gusakova A. S. Komarov 《Automatic Documentation and Mathematical Linguistics》2007,41(5):209-216
The possibility of using intellectual data analysis to solve problems of graphologic expertise is studied. The realization of such an analysis with the help of the DSM method for solving some attributive and diagnostic problems is suggested. 相似文献
6.
Zoran Ognjanovi? Zoran Markovi? Miodrag Ra?kovi? Dragan Doder Aleksandar Perovi? 《Annals of Mathematics and Artificial Intelligence》2012,65(2-3):217-243
The aim of the paper is to present a sound, strongly complete and decidable probabilistic temporal logic that can model reasoning about evidence. The formal system developed here is actually a solution of a problem proposed by Halpern and Pucella (J Artif Intell Res 26:1–34, 2006). 相似文献
7.
Crosslinked copolymers of acrylamide (AA) and ethylacrylate and some ion exchangers derived from them containing either primary amine groups, obtained by the Hofmann degradation of the amide groups, or carboxylic groups, obtained by the alkaline hydrolysis of the ester groups, were studied. Divinylbenzene and N,N′‐methylenebisacrylamide were used as crosslinkers. The starting copolymers and the corresponding ion exchangers were characterized by IR spectroscopy, swelling behavior, and thermogravimetric analysis. The ion‐exchanger properties were correlated with the crosslinker nature and the chemical reactions performed on the AA copolymers. The average molecular weight between two crosslinks, determined from the swelling data in water, was compared with that calculated on the basis of the copolymerization stoichiometry only for the carboxylic cation exchangers. In this way, the preservation of the crosslink density after the hydrolysis was revealed. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2701–2707, 2003 相似文献
8.
Dragan Jocic Susana Vílchez Tatjana Topalovic Ricardo Molina Antonio Navarro Petar Jovancic Maria Rosa Juli Pilar Erra 《应用聚合物科学杂志》2005,97(6):2204-2214
This study examines in detail the influence of low‐temperature plasma and biopolymer chitosan treatments on wool dyeability. Wool knitted fabrics were treated and characterized by whiteness and shrink‐resistance measurements. Surface modification was assessed by contact‐angle measurements of human hair fibers, which were used as a model to study the wetting properties of the treated wool knitted fabrics. The dyeing behavior was assessed from the diffusion mechanism point of view. The dyeing kinetics were measured at two different pHs (4.2 and 6.5) and three different temperatures (60, 85, and 100°C) to gain information about the contribution of the surface modification treatment to the dyeing mechanism. The exhaustion and reflectance data were compared, and the apparent diffusion coefficients were calculated. On the basis of the obtained results, a model for the dyeing mechanism of the chitosan treated wool was proposed. When treated with chitosan, the polymer sheath spread on the surface of the fibers acted as a predominant dyeing site in very short dyeing times, thus interacting with the dye and in later stages imparting the dye to the wool fiber. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 2204–2214, 2005 相似文献
9.
Noise filtering is most frequently used in data preprocessing to improve the accuracy of induced classifiers. The focus of this work is different: we aim at detecting noisy instances for improved data understanding, data cleaning and outlier identification. The paper is composed of three parts. The first part presents an ensemble-based noise ranking methodology for explicit noise and outlier identification, named Noise- Rank, which was successfully applied to a real-life medical problem as proven in domain expert evaluation. The second part is concerned with quantitative performance evaluation of noise detection algorithms on data with randomly injected noise. A methodology for visual performance evaluation of noise detection algorithms in the precision-recall space, named Viper, is presented and compared to standard evaluation practice. The third part presents the implementation of the NoiseRank and Viper methodologies in a web-based platform for composition and execution of data mining workflows. This implementation allows public accessibility of the developed approaches, repeatability and sharing of the presented experiments as well as the inclusion of web services enabling to incorporate new noise detection algorithms into the proposed noise detection and performance evaluation workflows. 相似文献
10.
D. V. Balandin M. A. Komarov G. V. Osipov 《Journal of Computer and Systems Sciences International》2013,52(4):650-663
Problems of controlling a spherical robot with pendulum drive are considered. A mathematical model of the dynamics of this robot is constructed and control laws in the form of state feedback that provide robot motion along a given trajectory are synthesized. Results of computer simulation that demonstrate efficiency of the proposed control laws are presented. 相似文献