Article Per Year (5 Year)
p-Index From 2021 - 2026
1.897
P-Index
This Author published in this journals
All Journal Jurnal Infra
Alexander Setiawan
Program Studi Informatika
Computer Science & IT

Published : 38 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 38 Documents
Search

 1   2   3   4 
Aplikasi Pengoptimalan Rute Pengiriman Barang pada PT.XYZ Fandy Ong; Alexander Setiawan; Nova Sepadyati
Jurnal Infra Vol 9, No 1 (2021)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The target company is a company engaged in the distribution of goods located in the city of Manado. Problems often faced by PT. XYZ, namely because of the large number of delivery destinations which resulted in the difficulty of arranging an effective travel sequence to distribute goods to customers according to the vehicle capacity and time desired by the customer. Therefore an information system is needed that is able to provide recommendations for a more effective delivery order based on each vehicle in the company. The system is implemented on website by using Django framework and MySQL Database. The process carried out by the system is by considering the constraints that the company has, namely in the form of maximum vehicle volume and office working hours, the system will provide recommendations for the order of delivery obtained through Google OR-Tools. The Genetic Algorithm method is also used as an alternative for later comparison. The end result of this program is a system that is able to answer the company's needs by providing recommendations for the order of delivery and information on detailed delivery for each vehicle. The test results obtained, namely Google OR-Tools got 17.04% better total distance results and 19.14% better total travel time results compared to the Genetic Algorithm method. Google OR-Tools also had 41.53% better total distance results and 41.46% better total trip time results than the company's current system. Meanwhile, the Genetic Algorithm method results in a total distance of 14.56% worse and a total trip time of 16.06% worse than Google OR-Tools. And when compared to the current company system, the Genetic Algorithm gets a total distance of 20.93% better and the total trip time result is 18.73% better than the current company system.
Sistem Informasi Simpan Pinjam Koperasi Citra Abadi Yuan Pratama; Lily Puspa Dewi; Alexander Setiawan
Jurnal Infra Vol 9, No 1 (2021)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Currently, the Citra Abadi savings and loan cooperative is still running all of its business processes manually. Cooperative recording is still done manually by means of books and paper. As a result of the system that is still manual, cooperative employees often find it difficult to find the required data quickly, for example when looking for member data, savings and loan data. Cooperative employees must find this data from the pile of cooperative records. It is also less effective and there is often missing data. Problems are also found when calculating reports in the cooperative, such as SHU reports, savings reports, and loan reports, the calculation process will take a very long time because you have to manually collect data which will be calculated one by one manually using a calculator. HTML 5 web-based information systems and PHP is built using Bootstrap framework and MySQL database. Features provided include: members data, saving and loan, remaining business results, promotion, balance, and survey data. The results obtained from the creation of this information system are that users can find out member data along with savings and loans, survey data, and receive reports needed by cooperative managers. From the results of the questionnaire, there are 100% on the assessment of good savings and loan features, 100% on the assessment of good application speed, and 66.7% on the overall assessment of the application is good.
Identifikasi Varietas Koi Berdasarkan Gambar Menggunakan Zero Parameter Simple Linear Iterative Clustering dan Support Vector Machine Amadea Sapphira; Alexander Setiawan; Endang Setyati
Jurnal Infra Vol 8, No 2 (2020)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

There’s currently 120 types of koi fish that has been bred around the world. The types of koi fish depends on the color patterns and shapes they have. There’s alot of patterns that has similarity between one type with another. For example, sanke and showa koi fish will look similar from a non-expert’s point of view, because both type has same color pattern, which is red, black and white. In actuality, sanke koi is dominantly red and white with slight black accent, while showa’s dominant color is red and black, with white accent.In this research, Zero Parameter Simple Linear Iterative Clustering (SLICO) method and Simple Linear Iterative Clustering (SLIC) will be tested and used to process the image segmentation process to eliminate the background of the image. Color Local Binary Pattern method is used to get the textures on images through the RGB, HSV, and grayscale colorspace. Support Vector Machine is used to identify types of koi fish. To test the SVM, two kind of kernel is used, which is linear kernel and Radial Basis Function (RBF) kernel.The results of this study are the program able to recognize types of koi from iamges. The test results show an accuracy of 36% in grayscale colorspace, 50% in RGB colorspace, and 48% in HSV colorspace.
PERANCANGAN DAN PEMBUATAN APLIKASI PERHITUNGAN HARGA POKOK PRODUKSI DENGAN METODE JOB ORDER COSTING PADA PT. HASIL WINDU MAKMUR DI PACIRAN, LAMONGAN Febry Suryanto; Alexander Setiawan; Silvia Rostianingsih
Jurnal Infra Vol 2, No 1 (2014)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (618.622 KB)

Abstract

PT. Hasil Windu Makmur is a companyengaged in breeding shrimp fry. PT. Hasil Macmur located inPaciran, Lamongan. These companies need information systemsthat can calculate the cost of production so that the work becomesmore effectives and efficients. This application was created byusing Microsoft Visual Studio 2005 VB. Net and SQL Server 2005as the database storage system . The method used in thecalculation of the cost of production is the job order costingmethod by using FIFO (First In First Out) on the stock feed andaverage on shrimp frieS. From the test results of applications,indicating that the application can process the data directlyrelated to the process of purchasing, production and salesautomatically. Report the cost of production and feed utilizationreports can be done quickly and accurately.
Penerapan Sistem Informasi Akuntansi Pada Peternakan Ayam Petelur “X” Andri Gunawan; Alexander Setiawan; Djoni Haryadi Setiabudi
Jurnal Infra Vol 8, No 1 (2020)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

At this time, the ‘X’ laying chicken farm in the Pare city has not yet implemented an accounting information system. All operational transaction records are still carried out manually so that it is prone to losing important data, making it difficult for farm owners to know his business developments. Because of the problem, then an accounting information system was designed with the assumption of an average inventory. This application uses the programming language PHP and MySql.    Based on the results obtained from this application include recording card stock, recording transactions both purchases and sales, recording maintenance, recording debt and receivables, and basic accounting reports in the form of income statements, balance sheets, journals, and ledgers.
Sistem Pakar Diagnosa Penyakit Saraf Menggunakan Metode Forward Chaining dan Certainty Factor Lucky Alexandre Lembangan; Kartika Gunadi; Alexander Setiawan
Jurnal Infra Vol 9, No 2 (2021)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Neurological diseases are one of the public health problems that requires special policies in an effort to handle it so that complete data are needed regarding cause, developments and outcomes. Neurological diseases consist of various types of nerves. Most people today tend to ignore or less in response to disorders that occur in the nervous system. After all, the neurological system plays a very important role in all human activities, because if the slightest symptom or disturbance is ignored, it can have serious consequence. As technology becomes more sophisticated, therefore in the future this research is expected to help replace the role of a doctor to diagnose early symptoms in the neurological system which will be implemented in a system called an expert system. This neurological disease diagnosis expert system is equipped with Forward channeling and Certainty factor methods. The usefulness of forward chaining in this program is to collect facts that occur to the user so that later they produce conclusions, so that users do not need to answer all the questions. By selecting the existing symptoms, you will get a conclusion that is a neurological disease that is owned by the user. The usefulness of the Certainty factor in this program is to display the level of system confidence in the diagnostic results in the form of a percentage. So that later serves to convince users when using this program. Based on the test results, this program can provide solutions that are suitable for diseases related to the symptoms felt by the user. The results of the calculation of the Certainty factor obtained quite significant results when compared with the results of interviews with experts.
Sistem Informasi Pelayanan GMIT Tiberias Kupang Berbasis Mobile Jimrio Vicky Stanley Benu; Alexander Setiawan; Djoni Haryadi Setiabudi
Jurnal Infra Vol 9, No 2 (2021)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Currently, most church service information systems are still manual. In the GMIT Tiberias Kupang environment, the media used in delivering the service information to the congregation is still done conventionally, through reading and sharing of church news which can only be obtained on Sundays when the main service is held. Therefore, the delivery of information becomes less effective and efficient. Furthermore, during the Covid-19 pandemic, it allows the spread of the virus to the congregation through congregational newsletters, worship liturgies, and financial reports. Likewise, manual administrative and congregational data management activities can cause errors and increase operational costs.Along with the rapid development of information technology, it is possible to design the application of a church service information system that can optimize services and information systems at GMIT Tiberias Kupang by presenting various features that are able to answer the needs of the church community for both ministers and congregations, considering that currently almost all congregants or in every household at least one family member already has an android phone.The purpose of making this application is to optimize the service information system for the GMIT Tiberias Kupang congregation that is effective and efficient by using a mobile application. Application made for using Android Studio with Java and Firebase programming languages as databases and website creation for admins using HTML, CSS, and PHP programming languages. The results of this study indicate that the level of congregational satisfaction with the church service information system has increased significantly after using the GMIT Tiberias Kupang Mobile-Based Service Information System Application.
Implementasi Indikator Pendeteksi Stophunt Pada Pasar Mata Uang Dengan Menggunakan Expert Advisor Alex Christopher; Agustinus Noertjahyana; Alexander Setiawan
Jurnal Infra Vol 7, No 2 (2019)
Publisher : Jurnal Infra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1222.733 KB)

Abstract

Trading activity in forex market is one of promising business opportunity that gives decent profit and freedom to it’s doer without providing big capital or physical office. However, the majority of people lose money because there’s a market manipulation that retail trader don’t notice. That’s why there’s needs to form a trading system, indicator, and expert advisor that could follow the movement of market manipulation. Trading system, indicator, and expert advisor follows the market structure that’s been made by market maker to induce retail trader to follow a fake market movement trend that ends with immediate reversal of the direction of the market price movement. The result of the testing provides a forex indicator that can detect a potential pattern that’s been used by market maker to reverse the market price direction, an expert advisor that can immediately gives notification of potential market manipulation and trading system that follows the movement of market manipulation with minimal risk.
Co-Authors Agustinus Noertjahyana Aldo Vallian Sayoga Tanu Wijaya Alex Christopher Alvin Santoso Amadea Sapphira Andreas Handojo Andri Gunawan Anita Nathania Purbowo Benediktus Marcelino Pratama Cynthia Stefanie Suriady Daniel Christian Tedja Daniswara Kusuma Aji David Filigon Lie Djoni Haryadi Setiabudi Endang Setyati Fandy Ong Febry Suryanto Gunawan Putra Pratama Handry Khoswanto Hans Sebastian Thenady Henry Novianus Palit Indar Sugiarto Jimmy Christian Tanian Jimrio Vicky Stanley Benu Juan Felix Nyoto Santoso Justinus Andjarwirawan Kartika Gunadi Kelvin Yohanes Kevin Christian Kevin Koesoemo Kevin Wibisono Lokananto Lauw Hermawan Pratama Lauwoto Leo Willyanto Santoso Lily Puspa Dewi Lucky Alexandre Lembangan Made Yoga Mahardika Michael Boentarman Michael Gozali Nova Sepadyati Priscilla Delaya Resmana Lim Resmana Lim Reyner Wijoyo Riandro Setiyo Louryanto Richard Prayogo Gozal Ricky Handoyo Rudy Adipranata Satria Antoni Gunawan Semuel Lesbassa Silvia Rostianingsih Vincentius Tandy Prasetyo William Winarto Yanes Robert Yeska Kakihary Yosua Umbu Datu Kadiwanu Yuan Pratama Yulia Yulia