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Collection of selected papers of the III International Conference on Information Technology and Nanotechnology最新文献

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A technique for detecting diagnostic events in video channel of synchronous video and electroencephalographic monitoring data 一种同步视频和脑电图监测数据视频通道诊断事件检测技术
D. Murashov, Y. Obukhov, I. Kershner, M. Sinkin
In this paper, a technique for automated detecting diagnostic events in the video channel of video and electroencephalographic monitoring data is presented. The technique is based on the analysis of the quantitative features of facial expressions in images of video data. The analysis of video sequences is aimed at detecting a group of frames characterized by high activity of frame regions. For detecting the frames, a criterion computed from the optical flow is proposed. The preliminary results of the analysis of real clinical data are presented. The intervals of synchronous muscle and brain activity, which may correspond to an epileptic seizure, are detected. These intervals can be used for diagnosing epileptic seizures and distinguishing them from non-epileptic events. Requirements for video shooting conditions are formulated.
本文提出了一种自动检测视频和脑电图监测数据视频通道诊断事件的技术。该技术是基于对视频数据图像中面部表情定量特征的分析。视频序列分析的目的是检测出一组帧区域活跃度高的帧。为了检测帧,提出了一种由光流计算的判据。本文给出了对实际临床资料分析的初步结果。同步肌肉和大脑活动的间隔,可能与癫痫发作相对应,被检测到。这些间隔可用于诊断癫痫发作并将其与非癫痫事件区分开来。制定了视频拍摄条件要求。
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引用次数: 5
Adaptive interpolation of multidimensional signals for compression on board an aircraft 飞机上用于压缩的多维信号自适应插值
N. Glumov, M. Gashnikov
We consider the compression of multidimensional signals on the aircraft board. We describe the data of such signals as a hypercube, which is "rotated" in a special way. To compress this hypercube, we use a hierarchical compression method. As one of the stages of this method, we use an adaptive interpolation algorithm. The adaptive algorithm automatically switches between different interpolating functions at each signal point. We perform computational experiments in real-world multidimensional signals. Computational experiments confirm that the use of proposed adaptive interpolator allows increasing (up to 31%) the compression ratio of the “rotated” hypercube corresponding to multidimensional hyperspectral signals.
我们考虑对飞机机载的多维信号进行压缩。我们将这些信号的数据描述为一个以特殊方式“旋转”的超立方体。为了压缩这个超立方体,我们使用分层压缩方法。作为该方法的一个步骤,我们使用了自适应插值算法。自适应算法在每个信号点自动切换不同的插值函数。我们在现实世界的多维信号中进行计算实验。计算实验证实,使用所提出的自适应插值器可以增加(高达31%)对应于多维高光谱信号的“旋转”超立方体的压缩比。
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引用次数: 0
Dynamic game task of executors incentives in projects for the development of new production in continuous time 项目中执行者激励的动态博弈任务,在连续时间内开发新产品
O. Pavlov
The article explores the incentive problem of executors of the new products development project at the industrial enterprise in continuous time. In the process of developing new products, the learning curve effect manifests itself, which leads to a reduction in labor intensity, depending on the cumulative volume of production. The project for the new products development is considered as a managed hierarchical dynamic system, consisting of a project management board (principal) and executors (agents). The interaction of project participants is formalized as a hierarchical differential game. To solve the formulated dynamic problem of material incentives, the well-known principle of cost compensation was applied. The original problem is divided into the task of coordinated incentives and the task of coordinated planning. The study showed that the task of coordinated dynamic planning is for the principal to determine the optimal planned production volumes in order to minimize the labor cost of agents. The initial dynamic problem of material incentives was reduced to the optimal control problem. The problem of optimal control with continuous time was solved analytically using the Pontryagin maximum principle. The study identifies a condition to determine the optimal production volumes for coordination of the interests of the principal and agents.
本文探讨了连续时间内工业企业新产品开发项目执行者的激励问题。在开发新产品的过程中,学习曲线效应表现出来,它导致劳动强度的降低,这取决于累积的生产量。新产品开发项目被认为是一个有管理层次的动态系统,由项目管理委员会(委托人)和执行者(代理人)组成。项目参与者之间的互动被形式化为一种等级差异博弈。为了解决拟定的物质激励动态问题,采用了众所周知的成本补偿原理。原问题分为协调激励任务和协调规划任务。研究表明,协调动态规划的任务是委托人确定最优计划产量,以使代理人的人工成本最小。将物质激励的初始动态问题简化为最优控制问题。利用庞特里亚金极大值原理对连续时间最优控制问题进行了解析求解。该研究确定了一个条件来确定最优产量,以协调委托人和代理人的利益。
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引用次数: 0
Neural network technology to search for targets in remote sensing images of the Earth 利用神经网络技术搜索地球遥感图像中的目标
N. Abramov, А. А. Talalayev, V. Fralenko, O. Shishkin, V. Khachumov
The paper introduces how multi-class and single-class problems of searching and classifying target objects in remote sensing images of the Earth are solved. To improve the recognition efficiency, the preparation tools for training samples, optimal configuration and use of deep learning neural networks using high-performance computing technologies have been developed. Two types of CNN were used to process ERS images: a convolutional neural network from the nnForge library and a network of the Darknet type. A comparative analysis of the results is obtained. The research showed that the capabilities of convolutional neural networks allow solving simultaneously the problems of searching (localizing) and recognizing objects in ERS images with high accuracy and completeness.
介绍了如何解决地球遥感影像中目标物的多类和单类搜索与分类问题。为了提高识别效率,开发了基于高性能计算技术的深度学习神经网络的训练样本准备工具、优化配置和使用。两种类型的CNN被用来处理ERS图像:来自nnForge库的卷积神经网络和Darknet类型的网络。对结果进行了对比分析。研究表明,卷积神经网络的能力可以同时解决ERS图像中目标的搜索(定位)和识别问题,具有较高的准确性和完整性。
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引用次数: 2
Performance comparison of machine learning methods in the bus arrival time prediction problem 机器学习方法在公交到达时间预测问题中的性能比较
A. Agafonov, A. Yumaganov
The problem of predicting the movement of public transport is one of the most popular problems in the field of transport planning due to its practical significance. Various parametric and non-parametric models are used to solve this problem. In this paper, heterogeneous information affecting the prediction value is used to predict the arrival time of public transport, and a comparison of the main machine learning algorithms for the public transport arrival time forecasting is given: neural networks, support vector regression. An experimental analysis of the algorithms was carried out on real traffic information about bus routes in Samara, Russia.
公共交通运动预测问题是交通规划领域的热点问题之一,具有重要的现实意义。各种参数和非参数模型被用来解决这个问题。本文将影响预测值的异构信息用于公共交通到达时间的预测,并对公共交通到达时间预测的主要机器学习算法:神经网络、支持向量回归进行了比较。在俄罗斯萨马拉市的公交路线的真实交通信息中对算法进行了实验分析。
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引用次数: 6
Increasing signal/acoustic interference ratio in telecommunications audio exchange by adaptive filtering methods 利用自适应滤波方法提高通信音频交换中的信声干扰比
Y. Kropotov, A. Belov, A Y Prockuryakov
The paper deals with the issues of increasing signal/noise ratio in telecommunication audio exchange systems. The study of characteristics of speech signals and acoustic noises, such as mathematical expectation, dispersion, relative intensity of acoustic speech signals and various types of acoustic noises and interference is carried out. It is shown that in the design of telecommunications systems, in particular loudspeaker systems operating under the influence of external acoustic noise of high intensity, it is necessary to solve the problem of developing algorithms to effectively suppress the above mentioned interference to ensure the necessary signal/noise ratio in communication systems. A mathematical model of the autocorrelation function of the speech signal by using the Lagrange interpolation polynomial of order 10, considered the creation of adaptive algorithms to suppress acoustic noise by linear filtering methods. Thus suppression of acoustic noises and hindrances is possible at the expense of operated change of area of a cutting in the interval from 0 Hz to 300-1000 Hz, depending on a hindrance conditions.
本文研究了通信音频交换系统中提高信噪比的问题。对语音信号和声噪声的特性进行了研究,如声语音信号的数学期望、色散、相对强度以及各种类型的声噪声和干扰。研究表明,在通信系统,特别是在高强度外部噪声影响下工作的扬声器系统的设计中,有必要解决开发有效抑制上述干扰的算法问题,以保证通信系统中必要的信噪比。利用10阶拉格朗日插值多项式建立语音信号自相关函数的数学模型,考虑创建自适应算法,通过线性滤波方法抑制噪声。因此,噪声和障碍的抑制是可能的,代价是在0 Hz到300-1000 Hz的区间内切割面积的操作变化,这取决于障碍条件。
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引用次数: 0
Recognition of forest and shrub communities on the base of remotely sensed data supported by ground studies 基于地面研究支持的遥感数据的森林和灌木群落识别
A Y Denisova, L. M. Kavelenova, E. Korchikov, A. Pomogaybin, N. Prokhorova, D. A. Terentyeva, V. Fedoseev, N. Yankov
The forest and shrub communities are important components of the environment and provide a wide spectrum of ecological services. In the Samara region the forest and shrub cover is dispersed on the territory what makes its monitoring difficult. The forest areas are limited by natural and anthropogenic reasons since Samara region is a forest-steppe territory with a high level of human activity. The shrub communities are mostly the secondary ecosystems incorporated in natural grassy communities, agricultural fields or enclosing to forests. These specific ecosystems can be recognized on remote sensing data including satellite images supported by preliminary ground surveys. In this article, we present the study of the forest and shrub communities recognition using remote sensing images and ground surveys in the Samara region. We describe a process of the test site selection for remote sensing data verification and discuss the results of applying the author’s classification technology for multispectral remote sensing composites to classify forest communities in the Samara region
森林和灌木群落是环境的重要组成部分,提供广泛的生态服务。在萨马拉地区,森林和灌木覆盖在领土上分散,这使其监测变得困难。森林面积受到自然和人为原因的限制,因为萨马拉地区是森林草原领土,人类活动水平很高。灌丛群落多为天然草地群落、农田或围林的次生生态系统。这些特定的生态系统可以通过遥感数据,包括初步地面调查支持的卫星图像来识别。本文介绍了基于遥感影像和地面调查的萨马拉地区森林和灌木群落识别研究。本文描述了遥感数据验证的试验点选择过程,并讨论了应用多光谱遥感复合分类技术对萨马拉地区森林群落进行分类的结果
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引用次数: 0
Adaptation of the mathematical apparatus of the Markov chain theory for the probabilistic analysis of recurrent estimation of image inter-frame geometric deformations 马尔可夫链理论在图像帧间几何变形循环估计概率分析中的应用
G. Safina, A. Tashlinskii, M. Tsaryov
The paper is devoted to the analysis of the possibilities of using Markov chains for analyzing the accuracy of stochastic gradient relay estimation of image geometric deformations. One of the ways to reduce computational costs is to discretize the domain of studied parameters. This approach allows to choose the dimension of transition probabilities matrix a priori. However, such a matrix has a rather complicated structure. It does not significantly reduce the number of computations. A modification of the transition probabilities matrix is proposed, it’s dimension does not depend on the dimension of estimated parameters vector. In this case, the obtained relations determine a recurrent algorithm for calculating the matrix at the estimation iterations. For the one-step transitions matrix, the calculated expressions for the probabilities of image deformation parameters estimates drift are given.
本文分析了利用马尔可夫链分析图像几何变形随机梯度中继估计精度的可能性。减少计算量的方法之一是对所研究参数的域进行离散化。这种方法允许先验地选择转移概率矩阵的维数。然而,这种矩阵的结构相当复杂。它不会显著减少计算次数。提出了一种改进的转移概率矩阵,它的维数不依赖于估计参数向量的维数。在这种情况下,得到的关系决定了在估计迭代时计算矩阵的循环算法。对于一步过渡矩阵,给出了图像变形参数估计漂移概率的计算表达式。
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引用次数: 0
Selection in a 3D microtomographic image the region with the highest quality 在三维显微层析图像中选择质量最高的区域
A. Kornilov, I. Safonov, A. V. Goncharova, I. Yakimchuk
We present an algorithm for processing of X-ray microtomographic (micro-CT) images that allows automatic selection of a sub-volume having the best visual quality for further mathematical simulation, for example, flow simulation. Frequently, an investigated sample occupies only a part of a volumetric image or the sample can be into a holder; a part of the image can be cropped. For each 2D slice across the Z-axis of an image, the proposed method locates a region corresponding to the sample. We explored applications of several existing blind quality measures for an estimation of the visual quality of a micro-CT image slice. Some of these metrics can be applied to ranking the image regions according to their quality. Our method searches for a cubic area located inside regions belonging to the sample and providing the maximal sum of the quality measures of slices crossing the cube across the Z-axis. The proposed technique was tested on synthetic and real micro-CT images of rocks.
我们提出了一种处理x射线显微断层成像(micro-CT)图像的算法,该算法允许自动选择具有最佳视觉质量的子体积进行进一步的数学模拟,例如,流动模拟。通常,被调查的样品只占体积图像的一部分,或者样品可以放入容器中;可以裁剪图像的一部分。对于图像z轴上的每个二维切片,该方法定位一个与样本对应的区域。我们探索了几种现有的盲质量措施的应用,以估计微ct图像切片的视觉质量。其中一些指标可以根据图像区域的质量对其进行排序。我们的方法搜索位于属于样本的区域内部的立方体区域,并提供沿z轴穿过立方体的切片的质量度量的最大总和。在岩石的合成微ct图像和真实微ct图像上进行了测试。
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引用次数: 1
Interpolation of multidimensional signals using the reduction of the dimension of parametric spaces of decision rules 利用决策规则的参数空间降维对多维信号进行插值
M. Gashnikov
In this paper, we consider the interpolation of multidimensional signals problem. We develop adaptive interpolators that select the most appropriate interpolating function at each signal point. Parameterized decision rule selects the interpolating function based on local features at each signal point. We optimize the adaptive interpolator in the parameter space of this decision rule. For solving this optimization problem, we reduce the dimension of the parametric space of the decision rule. Dimension reduction is based on the parameterization of the ratio between local differences at each signal point. Then we optimize the adaptive interpolator in parametric space of reduced dimension. Computational experiments to investigate the effectiveness of an adaptive interpolator are conducted using real-world multidimensional signals. The proposed adaptive interpolator used as a part of the hierarchical compression method showed a gain of up to 51% in the size of the archive file compared to the smoothing interpolator.
本文研究了多维信号的插值问题。我们开发了自适应插值器,在每个信号点选择最合适的插值函数。参数化决策规则根据每个信号点的局部特征选择插值函数。我们在该决策规则的参数空间中对自适应插值器进行了优化。为了解决这一优化问题,我们将决策规则的参数空间降维。降维是基于每个信号点的局部差值之比的参数化。然后在降维参数空间中对自适应插值器进行优化。计算实验研究了自适应插值器的有效性,使用现实世界的多维信号进行。所提出的自适应插值器作为分层压缩方法的一部分,与平滑插值器相比,存档文件的大小增加了51%。
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引用次数: 0
期刊
Collection of selected papers of the III International Conference on Information Technology and Nanotechnology
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