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Freidina E.V.,Novosibirsk State University of Economics and Management | Botvinnik A.A.,Russian Academy of Sciences | Dvornikova A.N.,Russian Academy of Sciences
Journal of Mining Science | Year: 2014

Topicality, concept, principles and tool of the robust control in open pit mining are given. It is shown that each stage of the product quality control must have permissible range of fluctuation for coal properties, loading equipment capacity and work area limits in open pit mines. The goal and capabilities of the robust control is the stable operation of the production system within the set limits and constraints. The article presents methodology and implementation tool for the robust control in open pit coal mines. © 2014, Pleiades Publishing, Ltd. Source


Pestunov A.I.,Novosibirsk State University of Economics and Management
Journal of Applied and Industrial Mathematics | Year: 2014

We study how does the Hamming weight of the difference between two values influence the probability of this difference preservation after modulo addition and subtraction. By the difference between two random variables we mean the operation XOR which is standard for cryptanalysis. We prove that if the most significant bit of the difference is equal to 0 (is equal to 1) then the probability of the difference preservation is equal to 2-h (equal to 2-(h-1)), where h is the Hamming weight of the difference. The theoretical results are confirmed experimentally. © 2014 Pleiades Publishing, Ltd. Source


Monarev V.,Novosibirsk State University | Pestunov A.,Novosibirsk State University of Economics and Management
Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 | Year: 2014

We introduce a known-key scenario for steganalysis and propose an approach to construct highly accurate quantitative detectors within it. As an example we construct a quantitative detector based on the well-known SPAM-features and apply it to steganalysis of non-distorted bitmap images with LSB-matching. While the state-of-the-art methods aiming at solving this problem allow to detect payloads up to 0.1 bits-per-pixel, the proposed method detects effectively up to 0.001 bpp. Despite essential utilization of SPAM-features, which have been originally designed for LSB-matching, our method detects LSB-replacement as well, in average, with the same accuracy as LSB-matching. Thus, the known-key scenario is a very powerful tool, and it would be worthwhile to adapt the state-of-the-art methods to this scenario for the purpose of attaining even more accuracy of steganalyzers. © 2014 IEEE. Source


Pestunov A.,Novosibirsk State University of Economics and Management
Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 | Year: 2014

Although differential cryptanalysis is widely employed for iterative block ciphers security analysis, it's basic notions are not properly formalized and relations between them are not systematized (especially related to truncated differentials). We present a formalization of these notions using special binary masks, and use it for their systematization, which allows to show strictly that truncated differential characteristic is the most general notion and non-truncated characteristics, non-truncated differentials and truncated differentials are in fact truncated characteristics under certain conditions. We also formalize the procedure of truncated characteristics concatenation and show that for a Markov cipher the probability of the resultant characteristic is estimated as their product (as it was shown by Lai and Massey for non-truncated characteristics). © 2014 IEEE. Source


Freidina E.V.,Novosibirsk State University of Economics and Management | Botvinnik A.A.,Russian Academy of Sciences | Kovalenko A.S.,Novosibirsk State University of Economics and Management
Journal of Mining Science | Year: 2015

The robust control over open pit mining is validated. It is shown that the current coupling of production systems based on equality of averaged capacities of mining and transportation equipment ensures no operational stability in an open pit mine. The article presents an optimization model and the modeling procedure for scheduling equipment repair halts such that to gain sustainable productivity due to uniformly distributed capacity of operational shoveling and haulage equipment. The authors have set stability limits, which imparts robustness to a controlled system and moves management to a new level. © 2014, Pleiades Publishing, Ltd. Source

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