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2020 International Seminar on Application for Technology of Information and Communication (iSemantic)最新文献

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University Students’ Perception of Online Learning in Covid-19 Pandemic : A Case Study in a Translation Course 新冠肺炎疫情下大学生在线学习感知——以翻译课程为例
R. A. Nugroho, Achmad Basari, Valentina Widya Suryaningtyas, Setyo Prasiyanto Cahyono
pandemic changed the pattern of our higher education. All conventional face-to-face classes turn into online classes. This makes it difficult for practice-based courses to organize quality education, because these courses rely on laboratory facilities as a place to increase student competency. One of the practical courses in Dian Nuswantoro University S1 English Study Program is a translation course. This subject is often regarded as a vocational subject in the language field. Therefore, this article aims to find out the teaching procedures for translation courses during the Covid-19 pandemic and assess students' perceptions of the teaching of these courses. Using a qualitative paradigm, the authors used field observations and questionnaires to describe the teaching procedures for the translation course and determine students' perceptions of the learning process in the course. From documented field observations, the lecturer of the course uses Google Classroom's online learning tools to manage theoretical assignments, Google Meet for material discussion, and OmegaT for translation practice. Based on the teaching method of the lecturer, 80% of respondents stated that they did not like the online lecture mode because of the difficulties they experienced. Interestingly, the results of the questionnaire showed a positive perception of 90% on the use of OmegaT and Google Classroom. This can be a positive improvement for online lectures in this study program in the future.
大流行改变了我们高等教育的模式。所有传统的面对面课程都变成了在线课程。这使得以实践为基础的课程很难组织素质教育,因为这些课程依赖于实验室设施作为提高学生能力的地方。丹麦努斯万托罗大学S1英语学习项目的一门实用课程是翻译课程。这门学科通常被认为是语言领域的一门职业学科。因此,本文旨在了解新冠肺炎大流行期间翻译课程的教学流程,并评估学生对这些课程教学的看法。作者采用定性研究范式,采用实地观察和问卷调查的方法描述了翻译课程的教学过程,并确定了学生对课程学习过程的看法。根据现场观察记录,课程讲师使用谷歌课堂的在线学习工具来管理理论作业,谷歌会议的材料讨论,和OmegaT翻译实践。根据讲师的教学方法,80%的受访者表示他们不喜欢在线授课模式,因为他们经历了困难。有趣的是,调查问卷的结果显示,90%的人对OmegaT和谷歌课堂的使用持积极态度。这对今后该研究项目的在线讲座是一个积极的改进。
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引用次数: 24
Mapping of Tourism Destinations by GIS-Blockchain RPCA based on PNPOLY Algorithm 基于PNPOLY算法的GIS-Blockchain RPCA旅游目的地映射
Achmad Teguh Wibowo, M. Hariadi, M. T. Sulistyono, Mohammad Khusnu Milad, E. I. Rhofita, Agustinus Bimo Gumelar
This study aims to mapping the halal tourism destination using GIS blockchain based on PNPOLY. The Ripple Protocol Consensus Algorithm (RPCA) is used to develop the blockchain. In this experiment, the data from the surveyor are input using an application that connects to the transaction set node. Then, the transaction set nodes to send the data to the transaction proposal node. The transaction proposal nodes would then distribute data to each validation data of the connected nodes to execute smart contracts with the PNPOLY method because this method used to perform smart contracts in supervising the performance of surveyors in conducting data inputs and coordinates of tourist assets according to real conditions in the field. If the smart contract process is successful with a maximum error tolerance of 20% in other transaction proposals, then this node records the new chain to the general ledger. The result of this process is a mapping of the halal tourism destination in city of Surabaya.
本研究旨在利用基于PNPOLY的GIS区块链来绘制清真旅游目的地。瑞波协议共识算法(RPCA)用于开发区块链。在本实验中,使用连接到事务集节点的应用程序输入来自测量者的数据。然后,事务集节点将数据发送到事务提议节点。然后,交易提议节点将数据分发给连接节点的每个验证数据,以使用PNPOLY方法执行智能合约,因为该方法用于执行智能合约,以监督测量员根据现场实际情况进行数据输入和旅游资产坐标的表现。如果智能合约流程成功,在其他交易建议中最大容错率为20%,则该节点将新链记录到总分类账中。这个过程的结果是在泗水市的清真旅游目的地的地图。
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引用次数: 3
Development of an Web-based Wearable Gait Recognition System using Gyroscope and Accelerometer Sensors 使用陀螺仪和加速度计传感器的基于web的可穿戴步态识别系统的开发
A. W. Setiawan, Fadel Muhammad, Vincent, Ardiyanto Hidayat
In this research, a device with the capability to measure one’s walking pattern or gait will be made. Seven IMU (MPU6050-gyroscope and accelerometer) sensors will be used to satisfy the means of inertial measurement. Each sensor will be connected to an ESP32 micro-controller, which promotes wireless communication via Bluetooth or WiFi. ESP32 will be used to perform serial communication with IMU sensors in order to process data. The processed data within ESP32 will be sent via wireless communication to a local server facilitated with Raspberry Pi 3. A web-based interface will be designed within the local server to store and display data received. The data from the IMU sensors will be displayed as individual graphics. From these graphics, the four gait parameters, which are heelstrike (HS), foot-flat (FF), heel-off (HO), and toe-off (TO), will be obtained.
在这项研究中,一种能够测量一个人的行走模式或步态的设备将被制造出来。将使用7个IMU (mpu6050陀螺仪和加速度计)传感器来满足惯性测量的手段。每个传感器将连接到ESP32微控制器,通过蓝牙或WiFi促进无线通信。ESP32将用于与IMU传感器进行串行通信,以处理数据。ESP32内处理的数据将通过无线通信发送到树莓派3辅助的本地服务器。将在本地服务器内设计一个基于web的界面来存储和显示接收到的数据。来自IMU传感器的数据将显示为单独的图形。从这些图形中,可以得到足跟(HS)、足平(FF)、足跟(HO)和脚趾(TO)四个步态参数。
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引用次数: 1
Improved Number Detection For Low Resolution Image Using the Canny Algorithm 基于Canny算法的低分辨率图像改进数字检测
Fandi Yulian Pamuji, M. Soeleman
Improved number detection at low resolutions using the Canny algorithm in this paper. Data from low resolution numbers are randomly selected for this algorithm’s approval. There are a number of problems, image detection rates at low resolutions are needed Methods that can improve edge detection images to get better. In finding the right way to change numbers at low resolution using an algorithm that compares like the Sobel operator, Laplacian operator, and Canny operator. From the experimental results 2 numbers in low resolution are read and clear detection using the Canny operator algorithm as the following images are MSE 3,371 and PSNR 42,852, image 2 is worth MSE 30,060 and PSNR 33,350 with these other algorithms namely Sobel operator and Laplacian operator.
本文利用Canny算法改进了低分辨率下的数字检测。随机选取低分辨率数字的数据进行算法验证。存在着许多问题,低分辨率下的图像检测率需要能够提高图像边缘检测效果的方法。在寻找在低分辨率下改变数字的正确方法时,使用一种类似于Sobel算子、拉普拉斯算子和Canny算子的算法。从实验结果中,使用Canny算子算法读取并清除低分辨率的2个数字,以下图像的MSE为3,371,PSNR为42,852,图像2的MSE为3,060,PSNR为33,350,使用Sobel算子和拉普拉斯算子。
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引用次数: 1
Eggs Classification based on Egg Shell Image using K-Nearest Neighbors Classifier 基于k近邻分类器的蛋壳图像鸡蛋分类
E. H. Rachmawanto, Christy Atika Sari, Rivalda Villadelfiya, De Rosal Ignatius Moses Setiadi, Nova Rijati, Etika Kartikadarma, Mohamed Doheir, Setia Astuti
Chicken eggs are one of the foods that are widely consumed by humans. The quality of eggs will affect the nutritional quality of eggs. One method that can be used to determine the quality of the outer shell is the quality of the eggshell. This research proposes egg classification techniques based on eggshell images using the K-Nearest Neighbors (KNN) classifier based on two feature extractions, namely the extraction of Hue Saturation Value (HSV) color features, and the Gray Level Co-Occurrence Matrix (GLCM). The experiment was carried out using 100 egg images consisting of three classes, namely eggs of good quality, rotten, and defective. Of the 100 images used 21 images as testing images and the rest as training images. The test was conducted with parameter values k = 1.3, and 9 while the distance used for each k was 1.2, and 4. Based on the test results obtained the highest accuracy of 85.71%, where the parameter value k = 1; d = 2 and k = 1; d = 4.
鸡蛋是人类广泛食用的食物之一。鸡蛋的品质会影响鸡蛋的营养品质。一种可以用来确定蛋壳质量的方法是蛋壳的质量。本研究提出了基于蛋壳图像的鸡蛋分类技术,采用k近邻(KNN)分类器,该分类器基于两个特征提取,即提取色相饱和度值(HSV)颜色特征和灰度共生矩阵(GLCM)。实验使用了100个鸡蛋图像,分为三个类别,即优质鸡蛋、腐烂鸡蛋和次品鸡蛋。在100张图像中,使用21张作为测试图像,其余的作为训练图像。测试的参数值k = 1.3、9,而每个k使用的距离分别为1.2、4。根据测试结果得到的最高准确率为85.71%,其中参数值k = 1;D = 2, k = 1;D = 4。
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引用次数: 9
Portability Characteristics Evaluation of MyITS Mobile using ISO/IEC 25010 Quality Standard 基于ISO/IEC 25010质量标准的MyITS移动设备可携性评价
Fatimatus Zulfa, Hidayatul Munawaroh, S. Rochimah
Academic system is one of requirements in the academic process to make it easier to manage academic data, such as study plans, grades, and administration. MyITS Mobile is an information system that is accessed by a mobile that utilizes both Android and IOS operating systems. MyITS Mobile is often used by various academic parties such as students, lecturers, and teaching staff, as well as student trustees. In addition, system is run in several operating systems and software that have different characteristics. Therefore, it is necessary to guarantee maximum quality of portability of system. Portability quality assurance is measured by ISO / IEC 25010 quality standards with sub characteristics namely characteristics, namely Adaptability, Installability, Replaceability. This study aims to measure quality of portability on MyITS Mobile using ISO / IEC 25010 quality standards. By measuring the quality of portability using six metrics on three sub characteristics obtained a maximum calculation result of 1.0. It proves that the MyITS application can run well in a variety of environments, especially on the Android and IOS operating systems. However, although some features needed by each user have been running well, there are some features that have not been completed in the process. As a result, some features do not function and run properly in accordance with the design of MyITS mobile.
学制是在学习过程中的要求之一,它使学习计划、成绩和管理等学术数据的管理更加容易。MyITS Mobile是一款使用Android和IOS操作系统的移动设备访问的信息系统。MyITS Mobile经常被各种学术团体使用,如学生、讲师、教学人员以及学生受托人。此外,系统运行在几个操作系统和软件,具有不同的特点。因此,有必要最大限度地保证系统的可移植性质量。可移植性质量保证是由ISO / IEC 25010质量标准测量的,具有子特性即特性,即适应性,可安装性,可替换性。本研究旨在使用ISO / IEC 25010质量标准测量MyITS Mobile的可移植性质量。通过对3个子特性使用6个指标来衡量可移植性质量,得到的最大计算结果为1.0。实践证明,MyITS应用程序可以在多种环境下良好地运行,特别是在Android和IOS操作系统上。然而,尽管每个用户需要的一些功能一直运行良好,但在此过程中仍有一些功能尚未完成。因此,一些功能无法按照MyITS手机的设计正常运行。
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引用次数: 1
Sentiment Analysis of Yelp Review Yelp评论的情感分析
Hussein Faisol, Kevin Djajadinata, Muljono Muljono
Digital data has developed very fast in the current era. Digital data has various forms, one of which is text data. There are a lot of text data source from many ways, such as review text data. Yelp is a local business directory and forum to review products, services, or places. We used Yelp’s review data to determine user’s sentiment or opinion about products, services, or places. Sentiment or opinion are classified into positive reviews, or negative reviews. The algorithms that used are Gaussian Naïve Bayes, Gaussian Naïve Bayes with AdaBoost, and K-NN. In this research review text data will be through a preprocessing and feature extraction stage. We used n-gram to extract the feature from the data with unigram, bigram and uni+bi-gram for indexing text. The result of this research that algorithms that has the highest accuracy rate was Gaussian Naïve Bayes with combined unigram and bigram with 86.7% from 5 fold cross-validation.
数字数据在当今时代发展非常迅速。数字数据有多种形式,其中一种是文本数据。有很多文本数据源来自很多方面,比如查看文本数据。Yelp是一个本地商业目录和论坛,用于评论产品、服务或地点。我们使用Yelp的评论数据来确定用户对产品、服务或地点的情绪或意见。情绪或意见分为正面评论和负面评论。使用的算法是高斯Naïve贝叶斯,高斯Naïve贝叶斯与AdaBoost,和K-NN。在本研究综述文本数据将经过预处理和特征提取阶段。我们使用n-gram从数据中提取特征,使用uniggram、biggram和uni+bi-gram对文本进行索引。本研究结果表明,准确率最高的算法是经过5次交叉验证的单图和双图组合的高斯Naïve Bayes,准确率为86.7%。
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引用次数: 0
Combination of Hardware and Microservices-based VR Game Controller using Mahony Filter 硬件与微服务相结合的VR游戏控制器Mahony Filter
J. Rahardjo, M. Rizqi, Noven Indra Prasetya, Delta Ardy Prima, Andy Rachman, Achmad Teguh Wibowo, Slamet Winardi, Agung Widodo, Agustinus Bimo Gumelar
The development of the world of virtual reality (VR) is currently happening, but these developments can only be reached by some people because of the high cost of the technology. Therefore, in this study, we would like to make a cheap gyroscope-based VR controller (costs around 22 USD) that can be used by everyone who has an android smartphone. This study used ESP32 as a microcontroller and gestures are needed from the user’s hand in order to control the character. Moreover, VR controller communication with an android smartphone used WiFi where ESP32 acts as an access point and sends data in the form of JSON (JavaScript Object Nation) string through UDP (User Datagram Protocol) protocol. The filter process by using mahony filter on ESP32, the test results show a small response time of 33 ms, so that between the user’s hand movements and character movements do not occur delay. The current generated is quite large at 155.75 milliamps based on Wifi transmitted.
虚拟现实(VR)世界的发展正在发生,但由于技术的高成本,这些发展只能被一些人达到。因此,在这项研究中,我们想做一个便宜的基于陀螺仪的VR控制器(成本约为22美元),每个拥有android智能手机的人都可以使用。本研究使用ESP32作为微控制器,需要用户的手势来控制角色。此外,VR控制器与android智能手机的通信使用WiFi,其中ESP32作为接入点,并通过UDP(用户数据报协议)协议以JSON (JavaScript Object Nation)字符串的形式发送数据。该滤波过程通过在ESP32上使用mahony滤波,测试结果显示响应时间较小,为33 ms,从而使用户的手部动作与角色动作之间不发生延迟。根据Wifi传输,产生的电流相当大,为155.75毫安。
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引用次数: 1
Performance Analysis of LSB Color Image Steganography based on Embedding Pattern of the RGB Channels 基于RGB通道嵌入模式的LSB彩色图像隐写性能分析
B. Sugiarto, C. A. Sari, De Rosal Ignatius Moses Setiadi, E. H. Rachmawanto
This research aims to analyze three patterns of embedding messages based on the Least Significant Bit (LSB) method on RGB color images. Previous research has suggested a pattern of LSB x-y-z embedding, where the value of x-y-z is 2-3-3 or 3-2-3 or 3-3-2, where the sum of the x-y-z value is 8-bits. The x value represents the number of message bits embedded on the red channel, y on the green channel, and z on the blue channel. Each research claims that the pattern has its advantages, especially to increase payload and imperceptibility. Because of this, a third method is used to compile the three methods using the same dataset, both the host image and the message. To increase the security of the message, encryption is performed using the RSA method before embedded. Stego image quality is measured by comparing it with the host image with four kinds of measuring tools, namely mean square error (MSE), peak signal to noise ratio (PSNR), structural similarity index measurement (SSIM), and histogram analysis. The results showed that all methods were of good quality and identical. It's just that LSB 3-2-3 is slightly superior when measured based on MSE and PSNR values, but the average difference in value does not reach 0.1dB. Whereas based on measuring SSIM LSB 3-3-2 get the best results. Where the difference is not more than 0.001. While at the message extraction stage the value of the bit error ratio (BER) between the original message and the extracted message yields a value of 0, which indicates that all methods can extract the message perfectly.
本研究旨在分析RGB彩色图像中基于最小有效位(LSB)方法的三种信息嵌入模式。先前的研究提出了一种LSB x-y-z嵌入模式,其中x-y-z的值为2-3-3或3-2-3或3-3-2,其中x-y-z值的和为8位。x值表示嵌入在红色通道上的消息位数,y表示绿色通道,z表示蓝色通道。每个研究都声称该模式有其优点,特别是在增加有效载荷和不可感知性方面。因此,使用第三种方法使用相同的数据集(主机映像和消息)编译这三种方法。为了提高消息的安全性,在嵌入之前使用RSA方法进行加密。采用均方误差(MSE)、峰值信噪比(PSNR)、结构相似指数测量(SSIM)和直方图分析四种测量工具,将隐去图像与宿主图像进行比较,对隐去图像质量进行测量。结果表明,所有方法的质量都很好,结果一致。只是LSB 3-2-3在MSE和PSNR值测量时略占优,但值的平均差值没有达到0.1dB。而在测量SSIM的基础上,LSB 3-3-2得到了最好的结果。其中差值不大于0.001。而在消息提取阶段,原始消息与提取的消息之间的误码率(BER)的值为0,这表明所有方法都可以很好地提取消息。
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引用次数: 3
Design Flyback Converter For Charging Battery using Fuzzy Logic Controller 用模糊控制器设计电池充电反激变换器
Renny Rakhmawati, S. Suhariningsih, Silvia Husniatuzzahro’
Motorcycle is one of the many private transportation facilities that currently. Unfortunately motorcycles still use energy from fossil fuels which are increasingly rare and not environmentally friendly. So now many developed environmentally friendly electric vehicles from renewable sources. But the battery charging process is needed as energy storage. So this paper offers a flyback converter method that is controlled by fuzzy logic controller. In the battery charging process, the values of Vin, Iin, Vout, and Iout are monitored with an output voltage target of 14.4 V. The fuzzy logic controller can control the output voltage is 14.37 Vdc with error voltage 0.208%.
摩托车是目前众多的私人交通工具之一。不幸的是,摩托车仍然使用化石燃料的能源,这种燃料越来越稀有,而且不环保。所以现在很多人开发了环保的可再生能源电动汽车。但是电池的充电过程是需要作为能量储存的。为此,本文提出了一种由模糊控制器控制的反激变换器方法。在电池充电过程中,监测Vin、Iin、Vout、Iout的值,输出电压目标为14.4 V。模糊控制器可以控制输出电压为14.37 Vdc,误差电压为0.208%。
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引用次数: 2
期刊
2020 International Seminar on Application for Technology of Information and Communication (iSemantic)
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