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Contrast enhancement for improved blood vessels retinal segmentation using top-hat transformation and otsu thresholding 利用顶帽变换和otsu阈值法增强血管视网膜分割
Pub Date : 2022-07-31 DOI: 10.26555/ijain.v8i2.779
M. Arhami, Anita Desiani, S. Yahdin, Ajeng Islamia Putri, Rifkie Primartha, Husaini Husaini
Diabetic Retinopathy is a effect of diabetes. It results abnormalities in the retinal blood vessels. The abnormalities can cause blurry vision and blindness. Automatic retinal blood vessels segmentation on retinal image can detect abnormalities in these blood vessels, actually resulting in faster and more accurate segmentation results. The paper proposed an automatic blood vessel segmentation method that combined Otsu Thresholding with image enhancement techniques. In image enhancement, it combined CLAHE with Top-hat transformation to improve image quality. The study used DRIVE dataset that provided retinal image data. The image data in dataset was generated by the fundus camera. The CLAHE and Top-hat transformation methods were applied to rise the contrast and reduce noise on the image. The images that had good quality could help the segmentation process to find blood vessels in retinal images appropriately by a computer. It improved the performance of the segmentation method for detecting blood vessels in retinal image. Otsu Thresholding was used to segment blood vessel pixels and other pixels as background by local threshold. To evaluation performance of the proposed method, the study has been measured accuracy, sensitivity, and specificity. The DRIVE dataset's study results showed that the averages of accuracy, sensitivity, and specificity values were 94.7%, 72.28%, and 96.87%, respectively. It indicated that the proposed method was successful and well to work on blood vessels segmentation retinal images especially for thick blood vessels.
糖尿病视网膜病变是糖尿病的一种症状。它会导致视网膜血管异常。这些异常会导致视力模糊和失明。在视网膜图像上进行视网膜血管自动分割,可以检测出这些血管的异常,从而得到更快、更准确的分割结果。提出了一种将Otsu阈值分割与图像增强技术相结合的血管自动分割方法。在图像增强方面,将CLAHE与Top-hat变换相结合,提高图像质量。本研究使用了提供视网膜图像数据的DRIVE数据集。数据集中的图像数据由眼底相机生成。采用CLAHE变换和Top-hat变换方法提高图像对比度,降低图像噪声。图像质量好的图像可以帮助计算机在视网膜图像中进行适当的血管分割。改进了视网膜图像血管检测分割方法的性能。采用Otsu阈值法,通过局部阈值分割血管像素和其他像素作为背景。为了评估所提出的方法的性能,研究测量了准确性、敏感性和特异性。DRIVE数据集的研究结果显示,准确率、灵敏度和特异性的平均值分别为94.7%、72.28%和96.87%。结果表明,该方法对血管分割视网膜图像,特别是粗血管的分割效果良好。
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引用次数: 2
Deep neural network-based physical distancing monitoring system with tensorRT optimization 基于tensorRT优化的深度神经网络物理距离监测系统
Pub Date : 2022-07-31 DOI: 10.26555/ijain.v8i2.824
E. Kurniawan, H. Adinanta, S. Suryadi, B. Sirenden, R. K. Ula, Hari Pratomo, Purwowibowo Purwowibowo, J. Prakosa
During the COVID-19 pandemic, physical distancing (PD) is highly recommended to stop the transmission of the virus. PD practices are challenging due to humans' nature as social creatures and the difficulty in estimating the distance from other people. Therefore, some technological aspects are required to monitor PD practices, where one of them is computer vision-based approach. Hence, deep learning-based computer vision is utilized to automatically detect human objects in the video surveillance. In this work, we focus on the performance study of deep learning-based object detector with Tensor RT optimization for the application of physical distancing monitoring system. Deep learning-based object detection is employed to discover people in the crowd. Once the objects have been detected, then the distances between objects can be calculated to determine whether those objects violate physical distancing or not. This work presents the physical distancing monitoring system using a deep neural network. The optimization process is based on TensorRT executed on Graphical Processing Unit (GPU) and Computer Unified Device Architecture (CUDA) platform. This research evaluates the inferencing speed of the well-known object detection model You-Only-Look-Once (YOLO) run on two different Artificial Intelligence (AI) machines. Two different systems-based on Jetson platform are developed as portable devices functioning as PD monitoring stations. The results show that the inferencing speed in regard to Frame-Per-Second (FPS) increases up to 9 times of the non-optimized ones, while maintaining the detection accuracies.
在COVID-19大流行期间,强烈建议保持身体距离,以阻止病毒的传播。由于人是社会性生物,很难估计与他人的距离,PD的实践具有挑战性。因此,需要一些技术方面来监控PD实践,其中之一是基于计算机视觉的方法。因此,利用基于深度学习的计算机视觉来自动检测视频监控中的人体目标。在这项工作中,我们重点研究了基于深度学习的张量RT优化目标检测器在物理距离监测系统中的应用。利用基于深度学习的目标检测技术在人群中发现人。一旦检测到物体,就可以计算物体之间的距离,以确定这些物体是否违反物理距离。本文提出了一种基于深度神经网络的物理距离监测系统。优化过程基于在图形处理单元(GPU)和计算机统一设备架构(CUDA)平台上执行的TensorRT。本研究评估了在两台不同的人工智能(AI)机器上运行的著名目标检测模型You-Only-Look-Once (YOLO)的推理速度。基于Jetson平台开发了两种不同的PD监测站便携式设备。结果表明,在保持检测精度的前提下,在帧/秒(FPS)方面的推理速度比未优化的算法提高了9倍。
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引用次数: 0
An extended approach of weight collective influence graph for detection influence actor 一种用于检测影响因子的权重集体影响图的扩展方法
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.800
Galih Hendro Martono, A. Azhari, K. Mustofa
Over the last decade, numerous methods have been developed to detect the influential actors of hate speech in social networks, one of which is the Collective Influence (CI) method. However, this method is associated with unweighted datasets, which makes it inappropriate for social media, significantly using weight datasets. This study proposes a new CI method called the Weighted Collective Influence Graph (WCIG), which uses the weights and neighbor values to detect the influence of hate speech. A total of 49, 992 Indonesian tweets were and extracted from Indonesian Twitter accounts, from January 01 to January 22, 2021. The data collected are also used to compare the results of the proposed WCIG method to determine the influential actors in the dissemination of information. The experiment was carried out two times using parameters ∂=2 and ∂=4. The results showed that the usernames bernacleboy and zack_rockstar are influential actors in the dataset. Furthermore, the time needed to process WCIG calculations on HPC is 34-75 hours because the larger the parameter used, the greater the processing time.
在过去的十年中,已经开发了许多方法来检测社交网络中仇恨言论的有影响力的行为者,其中之一是集体影响(CI)方法。然而,这种方法与未加权的数据集相关联,这使得它不适合社交媒体,特别是使用权重数据集。本文提出了一种新的CI方法加权集体影响图(WCIG),该方法利用权重和邻居值来检测仇恨言论的影响。从2021年1月1日至1月22日,共提取了49992条印尼推文。收集的数据还用于比较拟议的WCIG方法的结果,以确定在信息传播中有影响力的行为者。实验采用参数∂=2和∂=4进行了两次。结果表明,用户名bernacleboy和zack_rockstar是数据集中有影响力的参与者。此外,在HPC上处理WCIG计算所需的时间为34-75小时,因为使用的参数越大,处理时间越长。
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引用次数: 2
Rayleigh quotient with bolzano booster for faster convergence of dominant eigenvalues 基于bolzano增强器的Rayleigh商优势特征值快速收敛
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.718
M. Arifin, A. N. Che Pee, S. S. Rahim, A. Wibawa
Computation ranking algorithms are widely used in several informatics fields. One of them is the PageRank algorithm, recognized as the most popular search engine globally. Many researchers have improvised the ranking algorithm in order to get better results. Recent research using Rayleigh Quotient to speed up PageRank can guarantee the convergence of the dominant eigenvalues as a key value for stopping computation. Bolzano's method has a convergence character on a linear function by dividing an interval into two intervals for better convergence. This research aims to implant the Bolzano algorithm into Rayleigh for faster computation. This research produces an algorithm that has been tested and validated by mathematicians, which shows an optimization speed of a maximum 7.08% compared to the sole Rayleigh approach. Analysis of computation results using statistics software shows that the degree of the curve of the new algorithm, which is Rayleigh with Bolzano booster (RB), is positive and more significant than the original method. In other words, the linear function will always be faster in the subsequent computation than the previous method.
计算排序算法被广泛应用于多个信息学领域。其中之一是PageRank算法,它被认为是全球最受欢迎的搜索引擎。为了获得更好的结果,许多研究人员对排名算法进行了改进。近年来利用瑞利商加速PageRank的研究可以保证优势特征值的收敛性,并以此作为停止计算的关键值。Bolzano方法在线性函数上具有收敛性,通过将一个区间划分为两个区间来获得更好的收敛性。本研究旨在将Bolzano算法植入Rayleigh中,以提高计算速度。本研究产生的算法已经过数学家的测试和验证,与唯一的Rayleigh方法相比,该算法的优化速度最高为7.08%。利用统计软件对计算结果进行分析,表明新算法的Rayleigh + Bolzano booster (RB)曲线度为正,且比原方法更显著。换句话说,线性函数在后续的计算中总是比之前的方法更快。
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引用次数: 0
The mortality modeling of covid-19 patients using a combined time series model and evolutionary algorithm 结合时间序列模型和进化算法的covid-19患者死亡率建模
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.669
Imam Tahyudin, R. Wahyudi, Wiga Maulana, Hidetaka Nambo
COVID-19 pandemics for as long as two years ago since 2019 gives many insights into various aspects, including scientific development. One of them is the fundamental research of computer science. This research aimed to construct the best model of COVID-19 patients’ mortality and obtain less prediction errors. We performed the combination methods of time series, SARIMA, and Evolutionary algorithm, PARCD, to predict male patients who died because of COVID-19 in the USA, containing 1.008 data. So, this research proposed that SARIMA-PARCD has a powerful combination for addressing the complex problem in a dataset. The prediction error of SARIMA-PARCD was compared with other methods, i.e., SARIMA, LSTM, and the combination of SARIMA-LSTM. The result showed that the SARIMA-PARCD has the smallest MSE value of 0.0049. Therefore, the proposed method is competitive to implement in other cases with similar characteristics. This combination is robust for solving linear and non-linear problems.
2019年以来长达两年的新冠肺炎大流行,让我们对包括科学发展在内的各个方面有了深刻的认识。其中之一是计算机科学的基础研究。本研究旨在构建COVID-19患者死亡率的最佳模型,并获得较小的预测误差。我们采用时间序列、SARIMA和进化算法PARCD的组合方法来预测美国因COVID-19死亡的男性患者,包含1.008个数据。因此,本研究提出SARIMA-PARCD有一个强大的组合来解决数据集中的复杂问题。比较了SARIMA- parcd与其他方法(即SARIMA、LSTM以及SARIMA-LSTM组合)的预测误差。结果表明,SARIMA-PARCD的MSE值最小,为0.0049。因此,所提出的方法在具有相似特征的其他情况下具有竞争性。这种组合对于解决线性和非线性问题是稳健的。
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引用次数: 0
Alignment control using visual servoing and mobilenet single-shot multi-box detection (SSD): a review 使用视觉伺服和mobilenet单镜头多盒检测(SSD)的对准控制:综述
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.819
Jayson P. Rogelio, E. Dadios, A. Bandala, R. R. Vicerra, E. Sybingco
The concept is highly critical for robotic technologies that rely on visual feedback. In this context, robot systems tend to be unresponsive due to reliance on pre-programmed trajectory and path, meaning the occurrence of a change in the environment or the absence of an object. This review paper aims to provide comprehensive studies on the recent application of visual servoing and DNN. PBVS and Mobilenet-SSD were chosen algorithms for alignment control of the film handler mechanism of the portable x-ray system. It also discussed the theoretical framework features extraction and description, visual servoing, and Mobilenet-SSD. Likewise, the latest applications of visual servoing and DNN was summarized, including the comparison of Mobilenet-SSD with other sophisticated models. As a result of a previous study presented, visual servoing and MobileNet-SSD provide reliable tools and models for manipulating robotics systems, including where occlusion is present. Furthermore, effective alignment control relies significantly on visual servoing and deep neural reliability, shaped by different parameters such as the type of visual servoing, feature extraction and description, and DNNs used to construct a robust state estimator. Therefore, visual servoing and MobileNet-SSD are parameterized concepts that require enhanced optimization to achieve a specific purpose with distinct tools.
这一概念对于依赖视觉反馈的机器人技术至关重要。在这种情况下,由于依赖于预编程的轨迹和路径,机器人系统往往反应迟钝,这意味着环境发生变化或缺乏物体。本文就视觉伺服和深度神经网络的最新应用作一综述。选择PBVS和Mobilenet-SSD算法对便携式x射线系统的胶片处理机构进行对准控制。讨论了特征提取与描述、视觉伺服和Mobilenet-SSD的理论框架。同样,总结了视觉伺服和深度神经网络的最新应用,包括Mobilenet-SSD与其他复杂模型的比较。根据之前的一项研究,视觉伺服和MobileNet-SSD为操纵机器人系统提供了可靠的工具和模型,包括存在遮挡的地方。此外,有效的对准控制在很大程度上依赖于视觉伺服和深度神经的可靠性,这些可靠性由视觉伺服类型、特征提取和描述以及用于构建鲁棒状态估计器的dnn等不同参数决定。因此,可视化伺服和MobileNet-SSD是参数化的概念,需要通过增强优化来使用不同的工具实现特定的目的。
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引用次数: 4
An Improved particle swarm optimization based on lévy flight and simulated annealing for high dimensional optimization problem 基于lsamvy飞行和模拟退火的改进粒子群优化高维优化问题
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.818
Samar Bashath, Amelia Ritahani Ismail, A. Alwan, A. Hussin
Particle swarm optimization (PSO) is a simple metaheuristic method to implement with robust performance. PSO is regarded as one of the numerous researchers' most well-studied algorithms. However, two of its most fundamental problems remain unresolved. PSO converges onto the local optimum for high-dimensional optimization problems, and it has slow convergence speeds. This paper introduces a new variant of a particle swarm optimization algorithm utilizing Lévy flight-McCulloch, and fast simulated annealing (PSOLFS). The proposed algorithm uses two strategies to address high-dimensional problems: hybrid PSO to define the global search area and fast simulated annealing to refine the visited search region. In this paper, PSOLFS is designed based on a balance between exploration and exploitation. We evaluated the algorithm on 16 benchmark functions for 500 and 1,000 dimension experiments. On 500 dimensions, the algorithm obtains the optimal value on 14 out of 16 functions. On 1,000 dimensions, the algorithm obtains the optimal value on eight benchmark functions and is close to optimal on four others. We also compared PSOLFS with another five PSO variants regarding convergence accuracy and speed. The results demonstrated higher accuracy and faster convergence speed than other PSO variants. Moreover, the results of the Wilcoxon test show a significant difference between PSOLFS and the other PSO variants. Our experiments' findings show that the proposed method enhances the standard PSO by avoiding the local optimum and improving the convergence speed.
粒子群算法是一种简单的元启发式算法,具有鲁棒性。粒子群算法被认为是众多研究人员研究得最多的算法之一。然而,两个最根本的问题仍未得到解决。对于高维优化问题,粒子群算法收敛于局部最优,但收敛速度较慢。本文介绍了一种基于lsamvy flight-McCulloch和快速模拟退火(PSOLFS)的粒子群优化算法。该算法采用混合粒子群算法(hybrid PSO)定义全局搜索区域和快速模拟退火算法(fast simulation退火)优化所访问的搜索区域来解决高维问题。在本文中,PSOLFS是基于勘探和开发之间的平衡而设计的。我们在16个基准函数上对算法进行了500维和1000维的实验评估。在500个维度上,该算法在16个函数中有14个得到了最优值。在1000个维度上,该算法在8个基准函数上得到最优值,在另外4个维度上接近最优值。我们还将PSOLFS与另外五种PSO变体在收敛精度和速度方面进行了比较。结果表明,与其他PSO变体相比,该算法具有更高的精度和更快的收敛速度。此外,Wilcoxon测试结果显示PSOLFS与其他PSO变体之间存在显著差异。实验结果表明,该方法避免了局部最优,提高了收敛速度,增强了标准粒子群算法的性能。
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引用次数: 1
An approach for linguistic multi-attribute decision making based on linguistic many-valued logic 基于语言多值逻辑的语言多属性决策方法
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.820
Anh Thi Phuong Le, Hoai Nhan Tran, Thi Uyen Thi Nguyen, Dinh-Khang Tran
There are various types of multi-attribute decision-making (MADM) problems in our daily lives and decision-making problems under uncertain environments with vague and imprecise information involved. Therefore, linguistic multi-attribute decision-making problems are an important type studied extensively. Besides, it is easier for decision-makers to use linguistic terms to evaluate/choose among alternatives in real life. Based on the theoretical foundation of the Hedge algebra and linguistic many-valued logic, this study aims to address multi-attribute decision-making problems by linguistic valued qualitative aggregation and reasoning method. In this paper, we construct a finite monotonous Hedge algebra for modeling the linguistic information related to MADM problems and use linguistic many-valued logic for deducing the outcome of decision making. Our method computes directly on linguistic terms without numerical approximation. This method takes advantage of linguistic information processing and shows the benefit of Hedge algebra.
在我们的日常生活中存在着各种类型的多属性决策问题,以及不确定环境下涉及模糊和不精确信息的决策问题。因此,语言多属性决策问题是一类被广泛研究的重要问题。此外,决策者在现实生活中更容易使用语言术语来评估/选择备选方案。本研究在套期保值代数和语言多值逻辑的理论基础上,利用语言多值定性聚合和推理方法解决多属性决策问题。在本文中,我们构造了一个有限单调的对冲代数来建模与MADM问题相关的语言信息,并使用语言多值逻辑来推导决策结果。我们的方法直接对语言项进行计算,不需要数值近似。该方法充分利用了语言信息处理的优势,充分体现了对冲代数的优越性。
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引用次数: 0
Prediction of player position for talent identification in association netball: a regression-based approach 篮球界球员位置对人才识别的预测:基于回归的方法
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.707
Nur Hazwani Jasni, Aida Mustapha, Siti Solehah Tenah, S. Mostafa, Nazim Razali
Among the challenges in industrial revolutions, 4.0 is managing organizations’ talents, especially to ensure the right person for the position can be selected. This study is set to introduce a predictive approach for talent identification in the sport of netball using individual player qualities in terms of physical fitness, mental capacity, and technical skills. A data mining approach is proposed using three data mining algorithms, which are Decision Tree (DT), Neural Network (NN), and Linear Regressions (LR). All the models are then compared based on the Relative Absolute Error (RAE), Mean Absolute Error (MAE), Relative Square Error (RSE), Root Mean Square Error (RMSE), Coefficient of Determination (R2), and Relative Square Error (RSE). The findings are presented and discussed in light of early talent spotting and selection. Generally, LR has the best performance in terms of MAE and RMSE as it has the lowest values among the three models.
在工业革命的挑战中,4.0是管理组织的人才,特别是确保能够选择合适的人选。本研究旨在引入一种预测方法,利用个人球员的身体素质、心理能力和技术技能来识别无板篮球运动的人才。提出了一种基于决策树(DT)、神经网络(NN)和线性回归(LR)三种数据挖掘算法的数据挖掘方法。然后根据相对绝对误差(RAE)、平均绝对误差(MAE)、相对平方误差(RSE)、均方根误差(RMSE)、决定系数(R2)和相对平方误差(RSE)对所有模型进行比较。这些发现是在早期人才发现和选择的基础上提出和讨论的。一般来说,LR在MAE和RMSE方面表现最好,因为它在三个模型中具有最低的值。
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引用次数: 1
Machine learning for the prediction of phenols cytotoxicity 预测酚类物质细胞毒性的机器学习
Pub Date : 2022-03-31 DOI: 10.26555/ijain.v8i1.748
L. Douali
Quantitative structure-activity relationships (QSAR) are relevant techniques that assist biologists and chemists in accelerating the drug design process and help understanding many biological and chemical mechanisms. Using classical statistical methods may affect the accuracy and the reliability of the developed QSAR models. This work aims to use a machine learning approach to establish a QSAR model for phenols cytotoxicity prediction. This issue concern many chemists and biologists. In this investigation, the dataset is diverse, and the cytotoxicity data are sparse. Multi-component description of the compounds has then been considered. A set of molecular descriptors fed the deep neural network (DNN) and served to train the DNN. The established DNN model was able to predict the cytotoxicity of the phenols at high precision. The correlation coefficient at the fitting stage was higher than other statistical methods reported in the literature or developed in the present work, specifically multiple linear regression (MLR) and shallow artificial neural networks (ANN), and was equal to 0.943. The predictive capability of the model, as estimated by the coefficient of determination on an external predictive dataset, was significantly high and was about 0.739. This finding could help implement many molecular descriptors relevant to describing the compounds, representing the effects governing the phenols' cytotoxicity toward Tetrahymena pyriformis, avoiding overfitting and outlier exclusion.
定量构效关系(QSAR)是帮助生物学家和化学家加速药物设计过程和帮助理解许多生物和化学机制的相关技术。使用传统的统计方法可能会影响所建立的QSAR模型的准确性和可靠性。本工作旨在利用机器学习方法建立酚类物质细胞毒性预测的QSAR模型。这个问题与许多化学家和生物学家有关。在本研究中,数据集多样,细胞毒性数据稀疏。然后考虑了化合物的多组分描述。一组分子描述符输入深度神经网络(DNN)并用于训练深度神经网络。所建立的深度神经网络模型能够高精度地预测酚类化合物的细胞毒性。拟合阶段的相关系数高于文献报道或本工作发展的其他统计方法,特别是多元线性回归(MLR)和浅层人工神经网络(ANN),为0.943。通过外部预测数据集的决定系数估计,该模型的预测能力非常高,约为0.739。这一发现可以帮助实现许多与描述化合物相关的分子描述符,代表控制酚类物质对梨状四膜虫的细胞毒性的作用,避免过拟合和异常值排除。
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引用次数: 0
期刊
International Journal of Advances in Intelligent Informatics
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