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2017 IEEE 15th International Symposium on Applied Machine Intelligence and Informatics (SAMI)最新文献

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A minimal model of tumor growth with angiogenic inhibition using bevacizumab 肿瘤生长与血管生成抑制的最小模型使用贝伐单抗
D. Drexler, Johanna Sápi, L. Kovács
Modeling the tumor growth under angiogenic inhibition is an important step towards designing tumor treatment therapies based on mathematical tools. Our goal is to create a model for tumor growth that describes the underlying physiological processes adequately while being as simple as possible. We propose a second-order model containing linear terms and one bilinear term modeling the dynamics of tumor volume and inhibitor level, and work out the parametric identification process for the model. The parametric identification of the model is done using measurements from experiments on C57Bl/6 mice with C38 colon adenocarcinoma treated with bevacizumab. The control group of the mice received one injection at the beginning of the experiment, these measurement data are used for parametric identification, while the case group of mice received injection at each day of the treatment, these measurements are used to validate the model. The validation showed that the proposed model is capable of describing the tumor growth dynamics.
模拟血管生成抑制下的肿瘤生长是基于数学工具设计肿瘤治疗方法的重要一步。我们的目标是创建一个肿瘤生长的模型,它能充分描述潜在的生理过程,同时尽可能简单。我们提出了一个包含线性项和双线性项的二阶模型来模拟肿瘤体积和抑制剂水平的动态变化,并给出了模型的参数识别过程。模型的参数识别是通过贝伐单抗治疗C38结肠腺癌的C57Bl/6小鼠的实验测量来完成的。对照组小鼠在实验开始时注射一次,这些测量数据用于参数识别,而病例组小鼠在治疗的每一天注射一次,这些测量数据用于验证模型。验证结果表明,该模型能够较好地描述肿瘤的生长动态。
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引用次数: 22
Towards an automatic drowsiness detection system by evaluating the alpha band of EEG signals 基于脑电信号α波段的睡意自动检测系统的研究
Mejdi Ben Dkhil, Nidhal Chawech, A. Wali, A. Alimi
In this paper, we present the important role of alpha band for the evaluation of the drowsiness degree. By filtering the alpha band and by using the power spectral density of that same band, our data were analyzed using the percentiles as measures of dispersion. A threshold discriminating the two states was found, which helped to highlight the area of the brain responsible for the state of drowsiness for driver. So, in this work, we look to develop a drowsiness monitoring system in the goal to participate in reducing of the big number of road accidents to estimate the drowsiness level by analysis of EEG (electroencephalography) signals records. Finally, the algorithm developed in this work has been tested on twelve samples from the Physionet sleep-EDF database.
本文介绍了α波段在评价睡意程度中的重要作用。通过过滤alpha波段并使用同一波段的功率谱密度,我们的数据使用百分位数作为色散度量进行分析。他们发现了一个区分这两种状态的阈值,这有助于突出司机大脑中负责困倦状态的区域。因此,在这项工作中,我们希望开发一种嗜睡监测系统,通过分析EEG(脑电图)信号记录来估计嗜睡水平,以参与减少大量的道路交通事故。最后,在Physionet sleep-EDF数据库中的12个样本上对该算法进行了测试。
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引用次数: 9
Configuring genetic algorithm to solve the inverse heat conduction problem 配置遗传算法求解逆热传导问题
S. Szénási, I. Felde
Solving the inverse heat conduction problem is the key to determining heat flux on the surface of an object. Unfortunately, it is a typical ill-posed problem, as only numerical approximation methods are available for finding an approximate solution. It is common to use some heuristic methods, such as genetic algorithms, particle swarm optimisation, etc. Although the main mechanisms of these approaches are well-known, the practical implementations raise several questions about the free parameters (population size, elitism, mutation probability/range, etc.). This paper presents the results of several experimental tests to find the appropriate attributes of a genetic algorithm based approach to quickly and reliably solve the inverse heat conduction problem.
求解热传导逆问题是确定物体表面热流密度的关键。不幸的是,这是一个典型的不适定问题,因为只有数值近似方法可用于寻找近似解。常用一些启发式方法,如遗传算法、粒子群优化等。虽然这些方法的主要机制是众所周知的,但实际实现提出了一些关于自由参数的问题(群体大小,精英,突变概率/范围等)。本文给出了几个实验测试的结果,找到了一种基于遗传算法的合适属性的方法来快速、可靠地求解反热传导问题。
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引用次数: 17
A novel methodology for usability assesment of rheological soft tissue models 流变性软组织模型可用性评估的新方法
Árpád Takács, P. Galambos, I. Rudas, T. Haidegger
The task to distinguish between soft tissues by testing their mechanical properties is often referred to as the primary cognitive role of haptic devices. It is a common view that today's surgical simulators that are using haptic interfaces should rely on simple mechanical models of soft tissues, instead of complex, parameterized finite element models, thus enhancing real-time operation and focusing on the most representative mechanical effects. This paper proposes a user-trial validation method for tissue models and their polytopic representation by creating an experimental framework for soft tissue characterization, using the da Vinci Research Kit. The characterization methdodology relies on haptic feedback from the manipulated real tissue, extending the functionality of surgical simulators using virtual tissue models created by the previously proposed soft tissue modeling method. Results showed that the tissue model represents the tissue behavior sufficiently well for use in haptic simulators, based on user experience. Furthermore, it was concluded that silicon phantoms can mimic the behavior of real tissues in various surgical scenarios, especially when using teleoperation manipulation.
通过测试软组织的机械性能来区分软组织的任务通常被称为触觉设备的主要认知作用。目前普遍的观点是,使用触觉界面的外科模拟器应该依靠简单的软组织力学模型,而不是复杂的参数化有限元模型,从而提高操作的实时性,关注最具代表性的力学效果。本文通过使用达芬奇研究工具包创建软组织表征的实验框架,提出了一种用户试验验证方法,用于组织模型及其多面体表示。表征方法依赖于来自被操纵的真实组织的触觉反馈,使用先前提出的软组织建模方法创建的虚拟组织模型扩展了手术模拟器的功能。结果表明,基于用户体验,组织模型可以很好地代表组织行为,用于触觉模拟器。此外,我们还得出结论,硅模型可以在各种手术场景中模拟真实组织的行为,特别是在使用远程操作操作时。
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引用次数: 3
TCP/IP protocol utilisation in process of dynamic control of robotic cell according industry 4.0 concept 基于工业4.0概念的机器人单元动态控制过程中TCP/IP协议的应用
Juhasova Bohuslava, Juhás Martin, Halenar Igor
Communication and possibilities of flexible manufacturing systems control through a variety of communication protocols are described in this article. The main core of the article is to design robotic cells control by using the standard Ethernet (non-RT) while maintaining safety and quality of production, and the system is able to dynamically respond to changes in the production process. The core of the practical part is to design communication via the TCP/IP and socket technology, robot software design and the result of trials performed under real conditions in a heterogeneous environment of the production line with multiple types of robots and conveyor belt.
本文描述了通过各种通信协议实现柔性制造系统控制的通信和可能性。本文的主要核心是通过使用标准以太网(non-RT)来设计机器人单元控制,同时保持生产的安全和质量,并且系统能够动态响应生产过程中的变化。实践部分的核心是通过TCP/IP和套接字技术进行通信设计,机器人软件设计,并在多类型机器人和传送带的生产线异构环境下进行真实条件下的试验结果。
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引用次数: 16
Advanced analysis of manufacturing data in Excel and its Add-ins 先进的分析制造数据在Excel和它的插件
E. Kajati, M. Miskuf, P. Papcun
This article focuses on the business analytics and data analysis by application of the advanced tools, technologies and methods of Business Intelligence (BI). These tools enable companies to gain competitive advantage and improve their processes. We had data from the biggest steel factory in Slovakia. In papers [1], [2] we worked with BI solutions and there was request that all reports have to be in formats supported by Microsoft Excel. In this paper, we decided to use Excel and Add-ins like Power Query, Power Pivot, Power View, Power Map, and Power BI for advanced business analysis. Sequentially with the selected Excel Add-ins and based on the available data a complete management information system has been created, capable respond to various queries.
本文重点介绍了应用商业智能(BI)的先进工具、技术和方法进行业务分析和数据分析。这些工具使公司能够获得竞争优势并改进其流程。我们有斯洛伐克最大的钢铁厂的数据。在[1]和[2]论文中,我们使用了BI解决方案,并要求所有报告都必须使用Microsoft Excel支持的格式。在本文中,我们决定使用Excel和插件,如Power Query, Power Pivot, Power View, Power Map和Power BI进行高级业务分析。依次使用选定的Excel Add-ins并根据可用数据创建了一个完整的管理信息系统,能够响应各种查询。
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引用次数: 5
Survey on perspectives of PV technology and their applications 光伏技术及其应用前景综述
S. Lamnini, P. Kádár
Oil for electricity generation, burning of coal, heat production is the largest sources of greenhouse emission that cause climate change worldwide. Therefore the diffusion of solar PV technologies has become a crucial component for both climate change mitigation and adaptation of the electrical system on a global scale. In this survey, we analyzed the state of the art of the present large scale Photovoltaic application (technology, size, efficiency, cost). We investigated also in detail the commercially available new PV technologies, e.g.: Thin film, Dye-sensitized solar cells (DSSC), organic PV cells (OPV), and their near future's application perspectives. Finally, this paper summarizes the research findings of the new PV technologies' challenge that need to be overcome, on particular stability, efficiency, lifetime and degradation. In order to realize their potential as an economically viable path to harvesting energy from sunlight.
石油发电、煤炭燃烧、热能生产是造成全球气候变化的温室气体排放的最大来源。因此,太阳能光伏技术的推广已成为全球范围内减缓气候变化和适应电力系统的关键组成部分。在本次调查中,我们分析了目前大规模光伏应用的现状(技术、规模、效率、成本)。我们还详细研究了商业上可用的新光伏技术,如薄膜,染料敏化太阳能电池(DSSC),有机光伏电池(OPV),以及它们近期的应用前景。最后,本文总结了新光伏技术需要克服的挑战,特别是在稳定性、效率、寿命和退化方面的研究成果。为了实现它们的潜力,作为一种经济可行的途径,从阳光中收集能量。
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引用次数: 11
Video-based measurement system of parameters of the pyrotechnic effect 基于视频的烟火效果参数测量系统
A. Bencsik, M. Lendvay, G. Kártyás, J. Gáti, F. Hegyesi
In architecture, in special tasks of industrial robotics applications, in navigation and control systems of military technology, in solution for manipulation problems of space exploration in many cases we have to deal with definition, measurement of specified points of space. From measurement technology point of view, it is regarded as a classical solution to solve a problem by application of calculation according to the principle of three-dimensional triangulation. A newer possible solution is provided by application of imaging systems, which may give good results with proper software support. In our article we deal with measurement technology problems of a special area. Measurement of parameters of spectacle elements for pyrotechnics is important from the point of view of qualification of applied pyrotechnical tool and of programming of the planned effect. We will describe the results of development by introduction of experiments of parameters according to a new measurement procedure and by comparative analysis of them.
在建筑中,在工业机器人应用的特殊任务中,在军事技术的导航和控制系统中,在解决空间探索的操作问题时,在许多情况下,我们必须处理空间指定点的定义和测量。从测量技术的角度来看,根据三维三角测量原理应用计算来解决问题是一种经典的解决方法。成像系统的应用提供了一种新的可能的解决方案,在适当的软件支持下可以获得良好的结果。在我们的文章中,我们处理一个特殊领域的测量技术问题。烟火景观元件参数的测量,对于确定烟火工具的使用质量和规划烟火效果具有重要意义。我们将根据一种新的测量程序介绍参数的实验,并对它们进行比较分析,以描述开发的结果。
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引用次数: 0
An evaluation of biometrie identification approach on low-frequency eye tracking data 低频眼动追踪数据的生物特征识别方法评价
Elena N. Cherepovskaya, A. Lyamin
During the last decade many information systems started applying various biometric identification modules. This type of identification is secure and provides a real possibility to protect a system from an unapproved access. The paper presents a newly developed biometric identification approach that is suitable for many biometric signals. This work describes an evaluation of the approach on low-frequency eye tracking data that had been collected using 30Hz eye tracker as well as a MATLAB library realizing the approach that had been developed.
在过去的十年中,许多信息系统开始应用各种生物识别模块。这种类型的标识是安全的,并且提供了保护系统免受未经批准的访问的真正可能性。本文提出了一种适用于多种生物特征信号的新型生物特征识别方法。本文描述了该方法对使用30Hz眼动仪收集的低频眼动追踪数据的评估,以及实现所开发方法的MATLAB库。
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引用次数: 3
Static person detection and localization with estimation of person's breathing rate using single multistatic UWB radar 基于单台多静态超宽带雷达呼吸频率估计的静态人检测与定位
D. Novak, D. Kocur, J. Demcak
In the past period, great efforts have been made to develop the methods for the detection of human beings based on a monitoring their respiratory motion. For that purpose, ultra-wideband sensors (radars) operating in the frequency band DC-5GHz can be used with advantage. The basic principle of respiratory motion detection consists in the identification of sensor signal components possessing a significant power in the frequency band 0.2–0.7 Hz (frequency band of a human respiratory rate) corresponding to a constant range between the target and radar. However, the problem of person localization associated with the estimation of their breathing rate has not been studied deeply. In order to fill this gap, an approach for a joint localization and breathing rate estimation of a person will be introduced in this chapter. For that purpose, a combination of a method for the static person localization based on power-spectrum estimation using Welch periodogram referred to as WP-STAPELOC method and the Welch periodogram, MUSIC algorithm and Burg methods for the estimation of a fundamental harmonic of respiratory motion will be introduced. The performance of proposed procedure will be evaluated using a data obtained at experimental scenario. Moreover, a reference measurement will be performed in order to compare the results from UWB radar with the results from the optical sensor.
在过去的一段时间里,人们一直在努力开发基于监测呼吸运动的人体检测方法。为此,可以使用在DC-5GHz频段工作的超宽带传感器(雷达)。呼吸运动检测的基本原理在于识别目标与雷达之间一定距离内对应的0.2-0.7 Hz频带(人体呼吸频率频带)内具有显著功率的传感器信号分量。然而,与呼吸频率估计相关的人定位问题尚未得到深入研究。为了填补这一空白,本章将介绍一种用于人体关节定位和呼吸频率估计的方法。为此,本文将介绍一种基于Welch周期图的功率谱估计的静态人定位方法(称为WP-STAPELOC方法)与Welch周期图、MUSIC算法和Burg方法的组合,用于估计呼吸运动的基本谐波。所提出的程序的性能将使用在实验场景中获得的数据进行评估。此外,将进行参考测量,以便将超宽带雷达的结果与光学传感器的结果进行比较。
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引用次数: 2
期刊
2017 IEEE 15th International Symposium on Applied Machine Intelligence and Informatics (SAMI)
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