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2023 IEEE 17th International Symposium on Applied Computational Intelligence and Informatics (SACI)最新文献

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Bounding Box Supervision Benefits Lung Pathology Classification in Pulmonary X-Rays 围合盒监督有利于肺x线病理分类
Cristian Avramescu, A. Tenescu, B. Bercean, Marius Marcu
Classification and object detection are computer vision tasks with successful, clinical applications in medical imaging. Yet, the increased effort required of expert readers in order to annotate bounding boxes on medical images has yet to be quantitatively justified in terms of added value to identifying pathologies. In this study, we show preliminary results on the classification and localization of 17 most common chest pathologies on a private dataset of 15,000 radiographs from two Romanian public hospitals. Next, we quantitatively compare the extra added value of the bounding box information at training time, concerning classification performance improvements. Two types of architectures were trained on publicly available and private data, classification architectures (i.e., InceptionNet V3), tasked with identifying pathologies in chest radiographies and object detection architectures (i.e., Faster R-CNN), tasked with localizing the regions of interest on the image. Both achieved high classification performance (i.e., 90.52 and 88.94 mean AUROC, respectively). The object detector, however, reached superior classification performance, thus proving the additional bounding box information available at training time, benefits patient-level pathology identification as well.
分类和目标检测是计算机视觉任务,在医学成像中有成功的临床应用。然而,为了在医学图像上注释边界框,专家读者需要增加的努力还没有在确定病理的附加价值方面得到定量证明。在这项研究中,我们展示了17种最常见胸部病变的分类和定位的初步结果,这些分类和定位来自罗马尼亚两家公立医院的15000张x光片的私人数据集。接下来,我们定量地比较了训练时边界框信息的额外附加值,这涉及到分类性能的改进。在公开可用和私有数据上训练了两种类型的架构,分类架构(即InceptionNet V3)和目标检测架构(即Faster R-CNN),分类架构的任务是识别胸部x线照片中的病理,目标检测架构的任务是定位图像上感兴趣的区域。两者都取得了很高的分类性能(即平均AUROC分别为90.52和88.94)。然而,目标检测器达到了优异的分类性能,从而证明了在训练时可用的附加边界框信息,也有利于患者级别的病理识别。
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引用次数: 0
Food recognition using neural network on mobile device 在移动设备上使用神经网络识别食物
Ámon Kiss, András Kovács
This paper presents a solution to the problem of real-time food detection on mobile devices. The solution compares a YOLOv4 tiny model and a multilayer classification neural network ensemble as the convolutional neural network responsible for food detection, using MobilenetV3 for classification and several YOLOv4 tiny models capable of detecting less food in the overall problem. The model was trained with 40 different food categories using an RTX 3070 video card. Results showed that the multilayer network ensemble performed better than a single YOLOv4 tiny model. The TP value was 258 higher, the FP value was 163 lower and the FN value was 773 lower. The accuracy increased from 0,56 to 0,61, the recall increased from 0,52 to 0,70 and the F1-score also increased from 0,54 to 0,65. Finally, the finished models were implemented on an Android mobile device, and the application allows users to log meals and generate statistics from the saved data.
本文针对移动设备上的食品实时检测问题提出了一种解决方案。该解决方案比较了YOLOv4微型模型和多层分类神经网络集成作为负责食物检测的卷积神经网络,使用MobilenetV3进行分类和几个能够在整体问题中检测较少食物的YOLOv4微型模型。使用RTX 3070显卡对该模型进行了40种不同食品类别的训练。结果表明,多层网络集成优于单个YOLOv4微型模型。TP值高258,FP值低163,FN值低773。正确率从0.56提高到0.61,查全率从0.52提高到0.70,f1得分也从0.54提高到0.65。最后,在Android移动设备上实现了完成的模型,该应用程序允许用户记录膳食并从保存的数据中生成统计数据。
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引用次数: 0
Motion planning and modeling for isothermal parallel chemical reactions 等温平行化学反应的运动规划与建模
Eszter Virágh, D. Drexler, B. Kiss
For several chemical reactions, the intermediate states of the system has to be known. They can be given, e.g., by sampling, measurements, or motion planning. By motion planning, we can determine the time function of the concentrations and the temperature, using the mathematical model of the system. From this, we can conclude the state of the system at every moment. We provide a motion planning method for isothermal parallel structural chemical reactions. We simulate the behavior of the three-step parallel reaction. The results of the motion planning can help to decide, if it is necessary to intervene from outside, thus we can ensure that the concentration is in a specified interval.
对于一些化学反应,必须知道系统的中间态。它们可以通过采样、测量或运动规划等方式得到。通过运动规划,利用系统的数学模型,确定了浓度与温度的时间函数。由此,我们可以得出系统在每一时刻的状态。提出了一种等温平行结构化学反应的运动规划方法。我们模拟了三步平行反应的行为。运动规划的结果可以帮助决定是否需要从外部进行干预,从而我们可以确保集中在指定的间隔内。
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引用次数: 0
Generation-Specific Analysis of Adaptive Self-Driving Technology in Hungary 匈牙利自适应自动驾驶技术的代际分析
Patrik Viktor, Mónika Garai-Fodor
This paper deals with a generation-specific approach to adaptive devices for self-driving systems in Hungary. In the literature section, we discuss self-driving and generation-specific. In the primary research, we conduct a factor analysis based on a questionnaire survey. We received 590 responses to the questionnaire, which were analyzed using SPSS software. The study analysed attitudes towards self-driving cars from a generation-specific perspective. The results of the study clearly demonstrated that the generations, differentiated in their values and mindsets, have different attitudes towards self-driving cars. We believe that the results can help to identify the specificities of the target group for self-driving vehicles and to refine potential target groups.
本文讨论了匈牙利自动驾驶系统自适应装置的特定代方法。在文献部分,我们讨论了自驾车和世代特异性。在初步研究中,我们在问卷调查的基础上进行了因子分析。我们收到590份问卷回复,使用SPSS软件进行分析。该研究从一代人的角度分析了对自动驾驶汽车的态度。研究结果清楚地表明,价值观和心态不同的几代人对自动驾驶汽车的态度不同。我们相信,这些结果可以帮助确定自动驾驶汽车目标群体的特殊性,并细化潜在的目标群体。
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引用次数: 0
Educational robots in higher education -findings from an international survey 高等教育中的教育机器人——一项国际调查的结果
Eniko Nagy, Ildikó Holik
Today’s technological developments are also having an impact on education. In higher education, there are more and more innovations in content and methodology, such as educational robots, which can be used not only for teaching programming, but also as teaching assistants and pedagogical assistants. Tutor robots offer new opportunities for curriculum development, motivating students, stimulating interest and developing soft skills, while preparing young people to use the latest technological tools. In our online survey, conducted in summer 2022, we explored the views of educators in 14 countries on the characteristics of robot-supported innovation in higher education. The results of the survey show that educators are open to educational innovations. Educational robots are mainly used for teaching programming. They believe that the use of social robots significantly improves students’ creativity and self-expression. The results of this research have shown that the use of educational social robots is an excellent opportunity for methodological innovation and provides scope for experimental teaching.
今天的技术发展也对教育产生了影响。在高等教育中,在内容和方法论上的创新越来越多,比如教育机器人,它不仅可以用于教学编程,还可以作为教学助理和教学助理。家教机器人为课程开发提供了新的机会,激励学生,激发兴趣和发展软技能,同时让年轻人准备好使用最新的技术工具。在我们于2022年夏季进行的在线调查中,我们探讨了14个国家的教育工作者对机器人支持的高等教育创新特征的看法。调查结果显示,教育工作者对教育创新持开放态度。教育机器人主要用于编程教学。他们认为,使用社交机器人可以显著提高学生的创造力和自我表达能力。这项研究的结果表明,使用教育社交机器人是方法论创新的绝佳机会,并为实验教学提供了空间。
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引用次数: 0
The advancing role of digitalisation through the example of the Perlmutter project from the user side 通过用户方面的Perlmutter项目的例子说明数字化的推进作用
Ágnes Csiszárik-Kocsir, J. Varga
The events of recent years have shed new light on the crisis and change management practices of economic actors. It has been a truism that actors who are more receptive to change can be more successful and efficient than their peers in business markets. Perhaps the most significant changes in recent years have confirmed this even more. One only has to think of the impact of pandemic COVID-19, the energy crisis or the Russian-Ukrainian conflict. In a very short period of time, these events have brought about very significant changes and their impact has been largely negative for most economic actors. If it has not been sufficiently understood so far why it can be important to adapt to changes in a timely and appropriate way, or why good crisis management practices can be important, perhaps everyone will now. Meanwhile, other trends are shaping the global economy and will have an impact on the future state of the economy and society. Examples include sustainability (or the green transition) and digitalisation. Two global changes that will certainly have a long-term impact on society and business processes. No one can afford the luxury of ignoring these changes. What is more, the most competitive economic players are seeking to turn them to their advantage and to reap the benefits of sustainability or digitalisation. It is clear that our world has become faster and more complex than ever before. More and more things are changing around us, with ever more intense consequences. We need to recognise in time how we can respond to changing environmental conditions or circumstances. This is the subject of the present paper, which, after a brief literature review, draws on research findings to illustrate the importance and relevance of digitalisation.
近年来发生的事件让人们对经济行为体的危机和变革管理实践有了新的认识。在商业市场上,那些更容易接受变化的人比他们的同龄人更成功、更有效率,这已经是一个不言而喻的事实。也许近年来最重大的变化更加证实了这一点。只要想想COVID-19大流行、能源危机或俄乌冲突的影响就知道了。在很短的时间内,这些事件带来了非常重大的变化,它们对大多数经济参与者的影响很大程度上是负面的。如果到目前为止还没有充分理解为什么及时和适当地适应变化是重要的,或者为什么良好的危机管理实践是重要的,也许现在每个人都明白了。与此同时,其他趋势正在塑造全球经济,并将对未来的经济和社会状况产生影响。例子包括可持续性(或绿色转型)和数字化。这两个全球性的变化肯定会对社会和商业流程产生长期影响。没有人能够忽视这些变化。更重要的是,最具竞争力的经济参与者正在寻求将它们转化为自己的优势,并从可持续性或数字化中获益。很明显,我们的世界比以往任何时候都变得更快、更复杂。我们周围有越来越多的事物在变化,其后果也越来越严重。我们需要及时认识到如何应对不断变化的环境条件或情况。这是本文的主题,在简要的文献综述之后,借鉴研究成果来说明数字化的重要性和相关性。
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引用次数: 0
Single Cell Position Determination and Transformation from Static High-resolution Digital Image to Laser-microdissector Coordinate System Using Image Processing Techniques 单细胞位置确定及从静态高分辨率数字图像到激光显微解剖坐标系的图像处理技术
M. Kucarov, A. Várkonyi-Kóczy, B. Molnár, M. Kozlovszky
Such laser microdissection design is discussed that requires no human interaction and yet capable of μm accuracy. The goal is to boost speed, accuracy, and smooth workflow between slide scanning and laser cutting of suspicious areas from tissue sample based on software evaluation of the digital slides. Fully automated, precise, robust solution has been developed using hybrid method that includes static matrix transformation for preliminary position calculation, computer vision, and image processing technique for real-time object detection and position adjustment. Software implementation also tested on microdissector equipment. Applying this methodology in clinical pathology could reduce the waiting lists, the overload of clinics, laboratory technicians.
这种激光显微解剖设计不需要人工干预,但能够达到μm的精度。目标是提高速度,准确性和平滑的工作流程之间的幻灯片扫描和激光切割可疑区域的组织样本基于软件评估的数字幻灯片。采用混合方法,包括用于初步位置计算的静态矩阵变换、计算机视觉和用于实时目标检测和位置调整的图像处理技术,开发了全自动、精确、鲁棒的解决方案。软件实现也在微解剖设备上进行了测试。将这种方法应用于临床病理学可以减少候诊名单,减少诊所和实验室技术人员的超负荷工作。
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引用次数: 1
Investigation of reward functions for controlling blood glucose level using reinforcement learning 应用强化学习控制血糖水平的奖励函数研究
Lehel Dénes-Fazakas, M. Siket, László Szilágyi, G. Eigner, L. Kovács
In the present study, we investigated the effect of different reward functions in insulin regulation using reinforcement learning. An artificial pancreas system is able to deliver insulin into the body in an automated way. The control algorithm of an automated insulin delivery system is a key player in achieving personalized therapy. Neural networks provide an approach to customize insulin administration by learning the patient’s habits and administering insulin accordingly. Therefore, we conducted experiments with neural networks based on reinforcement learning. Our goal was to find a neural network-based model and reward function that could learn the patient’s behavior and administers insulin with the best time in ranges. We evaluated the method on simulated virtual patients when sensor noise occurs. The results show that the bump functions were the most efficient in providing acceptable time in ranges.
在本研究中,我们利用强化学习研究了不同的奖励功能在胰岛素调节中的作用。人工胰腺系统能够以自动的方式将胰岛素输送到体内。胰岛素自动输送系统的控制算法是实现个性化治疗的关键。神经网络提供了一种方法来定制胰岛素管理通过学习病人的习惯和管理胰岛素。因此,我们对基于强化学习的神经网络进行了实验。我们的目标是找到一个基于神经网络的模型和奖励函数,它可以学习患者的行为,并在范围内的最佳时间给胰岛素。我们在有传感器噪声的模拟虚拟病人上对该方法进行了评价。结果表明,碰撞函数在范围内提供可接受的时间是最有效的。
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引用次数: 0
Wind System Control at Time-Varying Wind Speeds Using the Perturb and Observe Method 用摄动和观测方法控制时变风速下的风系统
Florin Butaru, Mihaela-Codruta Ancuti, G. Erdodi, C. Șorândaru, S. Musuroi, R. Ancuti
In this paper, the operation of the wind turbine (WT) at its maximum power point (MPP) is analyzed, using the classical perturb and observe method (POM). The wind system, consisting of the wind turbine (WT) and the electric generator, is currently operating in the energetically optimal zone using the perturb and observe method (POM) at constant wind speeds over time. This research demonstrates the inefficiency of the perturb and observe method (POM) at time-varying wind speeds using extended simulation findings based on experimental data from the wind turbines region in Dobrogea and using mathematical models.
本文采用经典的摄动观测方法,对风力发电机组在最大功率点的运行进行了分析。由风力涡轮机(WT)和发电机组成的风力系统,目前在恒定风速下,使用扰动观测法(POM)在能量最优区域运行。本研究基于Dobrogea风力涡轮机区域的实验数据和数学模型,利用扩展的模拟结果证明了摄动观测方法(POM)在时变风速下的低效性。
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引用次数: 0
Benchmarking Photonic Quantum Machine Learning Simulators 对标光子量子机器学习模拟器
Henrik Varga, A. Kiss, Zoltán Kolarovszki
In the past few years, quantum computing has gotten more attention, and the need for efficient simulations is getting increasingly important as well. A significant branch of quantum computing is photonic quantum computing. For simulating photonic quantum circuits, Strawberry Fields is the most popular framework. In this paper, we compared it with another framework currently under development called Piquasso regarding gradient calculation time, which is an essential part of continuous-variable quantum neural networks. We present the apparent scalability of Piquasso over Strawberry Fields by storing fewer data, but leading to possible accuracy differences as a trade-off, which could motivate future work.
在过去的几年里,量子计算得到了越来越多的关注,对高效模拟的需求也变得越来越重要。量子计算的一个重要分支是光子量子计算。对于模拟光子量子电路,草莓场是最流行的框架。在本文中,我们将其与目前正在开发的另一个名为Piquasso的框架进行了比较,考虑梯度计算时间,Piquasso是连续变量量子神经网络的重要组成部分。我们通过存储更少的数据来展示Piquasso在Strawberry Fields上的明显可扩展性,但作为一种权衡,可能会导致准确性差异,这可能会激励未来的工作。
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引用次数: 0
期刊
2023 IEEE 17th International Symposium on Applied Computational Intelligence and Informatics (SACI)
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