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2021 13th International Conference on Information & Communication Technology and System (ICTS)最新文献

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Two Highest Penalties: A Modified Vogels Approximation Method to Find Initial Basic Feasible Solution of Transportation Problem 两个最高惩罚:一种求运输问题初始基本可行解的改进Vogels逼近法
B. Amaliah, C. Fatichah, E. Suryani
Vogel's Approximation Method (VAM) is one of the methods to find Initial Basic Feasible Solution (IBFS) of Transportation Problem (TP), which is mostly used to find the solution with minimum cost. Unfortunately, VAM has a limitation, i.e., if there are more than one highest penalty, VAM allows to select one arbitrarily. It causes ambiguity on penalty selection, which leads to the production of several alternative final solutions. In order to answer the challenge, Logical Development Of Vogel's Approximation Method (LD-VAM) turned up by selecting penalty in conflict using cell with lowest cost value. This technique triggered another ambiguity when there are several cells with the same minimum cost value. To avoid the ambiguity, Two Highest Penalties Method (THP) is proposed. The proposed method can reduce the cost of transportation problem as it uses Max-Min penalty, select two highest penalties, and use minimum (cost x allocation) to allocate values to the cell. THP still inherits some of VAM and LD-VAM concepts and computation procedures, yet it also introduces a new algorithm to select the suitable cell when ambiguity arises. Numerical examples have been used at this research to prove that THP can solve ambiguity, providing only one final solution and showing better final solution compared to those of VAM and LD-VAM. The result of THP is 98% accurate with optimal solution from TORA Program, which is used as reference.
Vogel近似法(VAM)是求解运输问题初始基本可行解(IBFS)的方法之一,主要用于求解成本最小的解。不幸的是,VAM有一个限制,即,如果有一个以上的最高惩罚,VAM允许任意选择一个。它导致了惩罚选择的模糊性,从而导致了几种备选的最终解决方案的产生。为了应对这一挑战,沃格尔近似法的逻辑发展(LD-VAM)提出了使用成本值最低的单元选择冲突惩罚的方法。当有几个单元具有相同的最小成本值时,这种技术引发了另一个模糊性。为了避免歧义,提出了两次最高处罚法(THP)。该方法使用Max-Min惩罚,选择两个最高惩罚,并使用最小值(成本x分配)分配值给单元,可以减少运输成本问题。THP仍然继承了VAM和LD-VAM的一些概念和计算过程,但也引入了一种新的算法,在出现歧义时选择合适的单元。本研究用数值算例证明了THP可以解决歧义问题,并且只提供一个最终解,并且与VAM和LD-VAM相比,THP具有更好的最终解。利用TORA程序的最优解,THP的准确度为98%,可作为参考。
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引用次数: 0
Variance Threshold as Early Screening to Boruta Feature Selection for Intrusion Detection System 方差阈值作为入侵检测系统Boruta特征选择的早期筛选
Muhammad al Fatih Abil FIda, T. Ahmad, Maurice Ntahobari
A rapid development of internet technology brings convenience to society and threat of exploitation at the same time. As a countermeasure, an Intrusion Detection System (IDS) was introduced. Research to improve its performance in differentiating normal traffic from malicious ones has been carried out by exploring machine learning. One of them implemented the Boruta algorithm, whose performance is still challenging in processing time to select appropriate features of the NSL-KDD dataset. Some studies work on this issue, which is then labeled as an “infinite loop” problem. However, the methods do not work on every scenario of the experiments, despite showing terrific results on classification using Random Forests. In this paper, we resolve this matter using a statistical approach, which in this case is Variance Threshold, to eliminate unnecessary features earlier so that Boruta would be able to identify all accepted and rejected features sooner while hoping with the same Random Forests that the classification result would not be too affected. It turned out that the proposed method does not work well, and surprisingly, the classification cannot reach 76% accuracy. Nevertheless, we might find a potential flaw in the former study and possibly rule out its result.
互联网技术的飞速发展在给社会带来便利的同时也带来了被剥削的威胁。为此,提出了入侵检测系统(IDS)。通过探索机器学习来提高其在区分正常流量和恶意流量方面的性能。其中一种算法实现了Boruta算法,该算法的性能在处理时间上仍然存在挑战,无法从NSL-KDD数据集中选择合适的特征。一些研究针对这个问题,然后将其标记为“无限循环”问题。然而,这些方法并不适用于实验的每一个场景,尽管在使用随机森林的分类上显示了出色的结果。在本文中,我们使用统计方法来解决这个问题,在这种情况下是方差阈值,以尽早消除不必要的特征,以便Boruta能够更快地识别所有接受和拒绝的特征,同时希望使用相同的随机森林,分类结果不会受到太大的影响。结果表明,所提出的方法效果并不好,令人惊讶的是,分类准确率达不到76%。然而,我们可能会在前一项研究中发现一个潜在的缺陷,并可能排除其结果。
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引用次数: 7
Enterprise Architecture Planning (EAP) Using TOGAF-ADM at Fuel Supplier 在燃料供应商使用TOGAF-ADM进行企业架构规划(EAP)
Megawati Lestari Pasiak, Andi Wahju Rahardjo Emanuel
Enterprise Architecture Planning (EAP) has been widely used in various types of businesses. Such as government organizations, agriculture, the banking industry, and companies. This study focuses on creating an EAP for the “Pangkalan BBM Dedi” using the TOGAF ADM framework. Through this research, we succeeded in making the architectural design of the business. The current business processes and processes are identified when a system or application is implemented at the business architecture phase. At the data, the architecture stage resulted in three main activities with seven data entities. The application architecture resulted in recommendations for information systems that can accommodate business needs. The architectural technology stage consists of designing a hardware device and a network that can accommodate application architecture. Overall, there are two business processes whose function is maintained as before, four business processes that the system will replace, and one business process which can be added later.
企业架构规划(EAP)已广泛应用于各种类型的业务。比如政府机构、农业、银行业和公司。本研究的重点是使用TOGAF ADM框架为“Pangkalan BBM Dedi”创建EAP。通过这项研究,我们成功地完成了业务的架构设计。在业务体系结构阶段实现系统或应用程序时,确定当前的业务流程和流程。在数据方面,体系结构阶段产生了带有七个数据实体的三个主要活动。应用程序体系结构产生了能够满足业务需求的信息系统建议。体系结构技术阶段包括设计能够容纳应用程序体系结构的硬件设备和网络。总的来说,有两个业务流程的功能与以前一样保持不变,系统将替换四个业务流程,还有一个业务流程可以稍后添加。
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引用次数: 2
Detection of Covid-19 from Chest CT Images Using Deep Transfer Learning 基于深度迁移学习的胸部CT图像Covid-19检测
A. Irsyad, H. Tjandrasa
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the virus that causes Covid-19. Covid-19 can spread quickly and lead to death so that the World Health Organization (WHO) has declared this disease a pandemic. Currently there are two methods commonly used in Covid-19, The Rapid Diagnostic Test (RDT) which has lower accuracy but requires fast time, and Real-Time Reverse Transcription Polymerase Chain Reaction (RT-PCR) which takes a long time but the accuracy is better than RDT. An alternative method that requires a short time and has high accuracy is required. One of method offered is to use CT images to detect Covid-19. This research proposes to detect Covid-19 from CT images using transfer learning methods of AlexNet, Resnet50, VGG16, Inception-v3, Inception-Resnet, Xception, and DenseNet. In this study we compared transfer learning using CLAHE preprocessing and without CLAHE. The results of this study provide that transfer learning with CLAHE preprocessing has a better performance than without CLAHE. The best performance has an accuracy of 94.97%, F-measure of 94.87%, and a precision of 97.88% for VGG16. Meanwhile, based on recall, Inception-Resnet has the best score with 95.62%, compared to VGG16 without CLAHE the results are slightly below the performance with 94.36% accuracy, F-measure of 94.21%, and a precision of 97.85, and the best recall is Resnet50 with 91.63%.
严重急性呼吸综合征冠状病毒2 (SARS-CoV-2)是导致Covid-19的病毒。Covid-19可以迅速传播并导致死亡,因此世界卫生组织(世卫组织)宣布这种疾病为大流行。目前,新型冠状病毒检测常用的方法有两种,一种是快速诊断法(RDT),其准确性较低,但要求时间快;另一种是实时逆转录聚合酶链反应法(RT-PCR),其耗时较长,但准确性优于RDT。需要一种时间短、精度高的替代方法。其中一种方法是利用CT图像检测Covid-19。本研究拟采用AlexNet、Resnet50、VGG16、Inception-v3、Inception-Resnet、Xception和DenseNet的迁移学习方法从CT图像中检测Covid-19。在这项研究中,我们比较了使用CLAHE预处理和不使用CLAHE预处理的迁移学习。本研究结果表明,经过CLAHE预处理的迁移学习比不经过CLAHE预处理的迁移学习具有更好的学习效果。其中,VGG16的准确度为94.97%,F-measure为94.87%,精密度为97.88%。同时,在召回率方面,Inception-Resnet得分最高,为95.62%,与未加CLAHE的VGG16相比,前者准确率为94.36%,F-measure为94.21%,精密度为97.85,略低于前者,召回率最高的是Resnet50,为91.63%。
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引用次数: 1
Implementation and Layout Optimization of Motion Sensor for Anomaly Detection in Daily Life of Elderly Persons 老年人日常生活异常检测运动传感器的实现与布局优化
Kosuke Shima, Takuma Kawamura, Masahiro Yamaguchi, Takumi Yoshida, T. Otsuka
The increasingly aged society is one of most critical issues facing developed countries. An especially important issue is elderly care in rural areas, which has become a much greater challenge to meet due to large numbers of young people migrating to urban areas. Furthermore, in these rural areas, it is difficult for care workers to frequently visit the homes of the elderly. In addition to the problems of implementing monitoring systems, there is usually no mobile internet deployment, frequent servicing by engineers is difficult, and the elderly cannot check or maintain the systems themselves. For this reason, we propose a monitoring system model that contains motion sensors and a sensor network using LoRa communication. LoRa communication enables us to implement a sensor network economically and energy-effectively. We implement an energy-effective sensor device using only a passive infrared sensor, a microcontroller, and the LoRa comm module. In experiments, we conducted data sampling in several rooms of a participant's house. The data are the number of times that the resident appears in front of a sensor device. We confirmed that the living room and bedroom were frequently used in daily routines and that the obtained values differed according to the time. Furthermore, we also confirmed that the sensor device placed in the restroom could be expected to detect health anomalies that are reflected in the number of usages of the restroom.
日益老龄化的社会是发达国家面临的最严峻问题之一。一个特别重要的问题是农村地区的老年人护理,由于大量年轻人迁移到城市地区,这已经成为一个更大的挑战。此外,在这些农村地区,护理员很难经常拜访老年人的家。除了实施监控系统的问题外,通常没有移动互联网部署,工程师的频繁服务很困难,老年人无法自己检查或维护系统。为此,我们提出了一种包含运动传感器和使用LoRa通信的传感器网络的监测系统模型。LoRa通信使我们能够经济高效地实现传感器网络。我们仅使用无源红外传感器,微控制器和LoRa通信模块实现节能传感器设备。在实验中,我们在参与者家中的几个房间进行了数据采样。这些数据是居民出现在传感器设备前的次数。我们确认客厅和卧室在日常生活中经常被使用,并且所获得的值根据时间而不同。此外,我们还确认,放置在洗手间的传感器设备可以检测健康异常,这反映在洗手间的使用次数上。
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引用次数: 0
[Copyright notice] (版权)
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引用次数: 0
Feature Extraction Amazon Customer Review to Determine Topic on Smartphone Domain 特征提取亚马逊客户评论,以确定智能手机领域的主题
Hendriyana, A. Huda, Z. Baizal
The growth of information affects social development. It makes long distance become shorter so that it is not a problem, it also changes someone of doing business activity through internal media or often called as electronic commercial or more popular with the name of e-commerce. Information about a particular product is called a review, whereas information about certain products obtained from other customer is customer review. Review is useful for consumers and manufacturing industries because determine consumer decisions in choosing a particular product. To determine a sentence that contains a particular feature of extraction on a sentence can be seen from words that contain product features directly is explicit, but there are some words that indirectly product feature or show characteristic of features is implicit. This paper aims to extract product features both explicit and implicit features to a review sentence on the mobile phone domain. The review format used is free text from the amazon e-commerce website but it raises ambiguous words to the product features, therefore takes dummy data to separate the word on product features. The method used to extract the feature is called SLTM (Sentence Level Topic Model) in previous [7] on online review. The dummy dataset, the system performance to extract the explicit feature is 76% and the implicit feature is 92.59%. While in the dataset amazon customer review, system performance to extract explicit features of 88.24% and implicit features of 60%.
信息的增长影响着社会的发展。它使长途变得更短,所以它不是一个问题,它也改变了人们做的商业活动,通过内部媒体或通常称为电子商务或更流行的名称电子商务。关于特定产品的信息称为评论,而从其他顾客处获得的关于特定产品的信息称为客户评论。审查对消费者和制造业很有用,因为它决定了消费者在选择特定产品时的决定。判断一个句子是否包含某一特定的特征提取对一个句子中可以看出包含产品特征的词直接是显式的,而有一些词间接表示产品特征或表现特征的词是隐式的。本文旨在从手机领域的回顾句中提取产品特征,包括显性特征和隐性特征。使用的评论格式是来自亚马逊电子商务网站的自由文本,但它会对产品功能产生模糊的单词,因此需要虚拟数据来分离产品功能上的单词。提取特征的方法在之前的在线评论[7]中被称为SLTM(句子级主题模型)。在虚拟数据集上,系统提取显式特征的性能为76%,提取隐式特征的性能为92.59%。而在亚马逊客户评论数据集中,系统提取显式特征的性能为88.24%,隐式特征的性能为60%。
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引用次数: 0
Power System Harmonics Estimation using Hybrid Archimedes Optimization Algorithm-based Least Square Method 基于混合阿基米德优化算法的电力系统谐波估计
Hasan Jamil Apon, Md. Shadman Abid, Khandaker Adil Morshed, M. M. Nishat, Fahim Faisal, Nchouwat Ndumgouo Ibrahim moubarak
Estimating harmonics of a power system with different optimization techniques has emerged as a potential field of research in recent times. The amount of necessary information in an unknown signal, polluted with noise can be effectively determined by utilizing stochastic optimization techniques. In this context, this study proposes a hybridized algorithm termed as Archimedes optimization algorithm-based least square (AOA-LS) technique for estimation of harmonics of a power system. The proposed optimization algorithm contributes in predicting the phases of the harmonic signal and conventional least-square (LS) method determines the amplitudes. The simulation was carried out for a voltage wave obtained from a standard testing module's load bus terminal under two noisy conditions: Uniform noise and Gaussian noise. Furthermore, for each noisy situation, the signal-to-noise ratios (SNR) are set to 0 dB, 10 dB, 20 dB, and 40 dB, respectively. For the purpose of comparative analysis, performance of the proposed AOA-LS scheme is evaluated and compared with three of the other techniques known as Firefly algorithm-based LS (FA-LS), Particle swarm optimization with passive congregation based LS (PSOPC-LS), and Artificial bee colony based LS (ABC-LS). According to the findings, the proposed algorithm surpasses all the algorithms in terms of estimation accuracy and computational time.
利用不同的优化技术对电力系统进行谐波估计已成为近年来研究的热点。利用随机优化技术可以有效地确定被噪声污染的未知信号中必要信息的数量。在此背景下,本研究提出了一种称为基于阿基米德优化算法的最小二乘(AOA-LS)混合算法来估计电力系统的谐波。提出的优化算法有助于预测谐波信号的相位,而传统的最小二乘法(LS)确定振幅。对标准测试模块负载母线终端在均匀噪声和高斯噪声两种噪声条件下得到的电压波形进行了仿真。此外,对于每种噪声情况,信噪比(SNR)分别设置为0 dB、10 dB、20 dB和40 dB。为了进行比较分析,本文对所提出的AOA-LS方案的性能进行了评估,并与其他三种技术进行了比较,即基于萤火虫算法的LS (FA-LS)、基于被动聚集的粒子群优化LS (PSOPC-LS)和基于人工蜂群的LS (ABC-LS)。结果表明,该算法在估计精度和计算时间上均优于所有算法。
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引用次数: 6
Video-Based License Plate Recognition Using Single Shot Detector and Recurrent Neural Network 基于视频的单镜头检测器和递归神经网络车牌识别
D. A. Navastara, Nuzha Musyafira, C. Fatichah, Safhira Maharani
Each vehicle has its own identity, in other words, the vehicle number plate. This identity often uses in parking processing, security development, and toll systems. It is necessary to develop an automated system that can be used and supported by vehicle number plates known as License Plate Recognition (LPR). This paper proposed the LPR system based on video data CCTV using the Single Shot Detector to localize the license plate, the Connected Component Labeling to do the character segmentation, and Recurrent Neural Network to recognize the characters on the license plate. This study shows our proposed method works well based on the experimental result, with an average accuracy of 94.01 % for license plate localization, 84.08% for character segmentation, and 93.53% for character recognition.
每辆车都有自己的身份,换句话说,就是车牌号。此身份通常用于停车处理、安全开发和收费系统。有必要开发一种可以被车牌使用和支持的自动化系统,即车牌识别(LPR)。本文提出了基于视频数据CCTV的车牌识别系统,采用单镜头检测器定位车牌,连通分量标记进行字符分割,递归神经网络识别车牌上的字符。实验结果表明,本文方法的车牌定位平均准确率为94.01%,字符分割平均准确率为84.08%,字符识别平均准确率为93.53%。
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引用次数: 0
Transfer Learning Approaches for Indonesian Biomedical Entity Recognition 印尼生物医学实体识别的迁移学习方法
D. Purwitasari, A. Abdillah, Safitri Juanita, M. Purnomo
Biomedical Named Entity Recognition (BioNER) could be found in high-quality annotated biomedical dataset of some applications such as medical question answering, clinical documents classification and decision support system. However, high-quality biomedical documents (i.e., PubMed, MPlus) as the main source of BioNER dataset is only available in English while it is lack in Indonesian. Efforts to annotate such documents is also burdensome since it requires extensive work of experts. Transformers based model, i.e. BERT and pretrained multilingual language models lead to an opportunity to perform crosslingual transfer learning from well progressed English BioNER to Indonesian language. This paper investigates XLM-Roberta and M-BERT as pretrained multi-lingual model to perform BioNER for Indonesian biomedical corpora. The model is fine-tuned in English documents before being evaluated in Indonesian biomedical test data. As the results, XLM-Roberta achieves better than M-BERT model in all measurements metrics. The investigations also compare the performance of multilingual with monolingual language model to evaluate the BioNER task and found no significant result difference between both models.
生物医学命名实体识别(BioNER)可以在医学问答、临床文献分类和决策支持系统等应用的高质量注释生物医学数据集中找到。然而,作为BioNER数据集主要来源的高质量生物医学文献(即PubMed, MPlus)只有英文版本,而印尼语版本缺乏。注释这类文件的工作也很繁重,因为它需要专家的大量工作。基于变形金刚的模型,即BERT和预训练的多语言语言模型提供了从进展良好的英语BioNER到印度尼西亚语的跨语言迁移学习的机会。本文研究了XLM-Roberta和M-BERT作为预训练的多语言模型对印尼生物医学语料库进行BioNER。该模型在印度尼西亚生物医学测试数据中进行评估之前,先在英文文件中进行微调。结果表明,XLM-Roberta在所有度量指标上都优于M-BERT模型。研究还比较了多语言和单语言模型对BioNER任务的评价,发现两种模型的结果没有显著差异。
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引用次数: 1
期刊
2021 13th International Conference on Information & Communication Technology and System (ICTS)
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