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INDONESIA
ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA
Published by Universitas Islam Negeri Sumatera Utara
ISSN : -     EISSN : 25986341     DOI : 10.30829/algoritma
Core Subject : Science,
Computer Science & IT
Arjuna Subject : -
Articles 161 Documents
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Penerapan Metode Mabac Dalam Menentukan Kopi Terlaris Berdasarkan Tingkat Harga Pada Perusahaan Kopi Kenangan Hidayat, Aprizal; Siregar, Dodi; Handoko, Divi
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15368

Abstract

Kopi Kenangan is a coffee beverage company founded in Indonesia in 2017 by Edward Tirtanata, James Prananto and Cynthia Chaerunnisa. Currently, Kopi Memories has opened as many as 230 outlets throughout Indonesia. Various menus have been served at Kopi Memories, especially at Kopi Memories, which is located in the city of Medan, so far there are 60 menus available. The number of menus that have been presented, sometimes people who just want to buy memories coffee products are still confused in choosing the best-selling memory coffee products in their coffee products, plus there is no system in determining the best-selling coffee for memories coffee. Departing from the problems above, the author is interested in making a decision support system in determining the best-selling coffee products based on price and sales levels. The decision support system itself is a system that is able to provide both problem-solving abilities and the ability to solve semi-structured problems. The decision system method used is the MABAC method which is a multi-criteria comparison method. This method was chosen because, service companies with other methods of multi-criteria decision making and this study resulted in the memory of Thai tea coffee products succeeded in producing the best products with a calculation value of 0.331616 Keywords: Mabac, Memories Coffee, Decision Support System
Mendeteksi Tingkat Kematangan Belimbing Berdasarkan Fitur Warna Menggunakan Transformasi Ruang Warna HSI Sundari, Siti; Siburian, Indah Natalia; Wulan, Nur
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15263

Abstract

Penelitian ini mengembangkan sistem aplikasi untuk mendeteksi tingkat kematangan belimbing dengan transformasi warna HIS. Subjek penelitian adalah membangun sistem aplikasi untuk mengenali dan menentukan kematangan belimbing berdasarkan fitur warna menggunakan aplikasi Matlab 2015. Data dalam penelitian ini menggunakan gambar belimbing yang diambil dengan kamera, yang kemudian akan mengekstrak karakteristik warna, dan menghitung tingkat kandungan warna dari R (merah), G (hijau), dan B (biru) dan dikonversi ke HSI. Dari hasil penelitian, 10 sampel belimbing yang terdiri dari buah mentah dan setengah matang, serta sudah matang dengan menghitung nilai rata-rata maksimum dan minimum H dan S memperoleh persentase sebesar 85%. Kata kunci : Belimbing, Matlab, Deteksi kematangan, transformasi ruang warna HSI.
Penerapan algoritma Shortest Job First ( SJF) dan Priority Scheduling (PS) Pada Maintanance Mesin ATM Sundari, Siti; Syahputra, M Yogie; Rismayanti, Rismayanti
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15377

Abstract

In the banking world there are scheduling problems and is one of the important aspects for the smooth operation of the company, especially in the ATM (automatic teller machine). There is no initial system in scheduling repairs and charging money a cash machine so it is necessary to run the company's operations well. In this study wanted to propose a scheduling system that uses two algorithms that can be used as a comparison in scheduling. Algorithms that can be implemented in a queue system, one of which is SJF (Shortest Job First) and Priority Scheduling. The existence of applications with this system, users can know the schedule of preventive maintenance so as to facilitate the division of operation maintenance in the company in carrying out their respective duties. Key Words: ATM(automatic teller machine), Shortest Job First, Priority Scheduling
Implementasi Liniear Congruential Generator Pada Pembangkitan Inizialization Vector Pada Kriptografi CBC Sederhana Riski, Sari Kurnia; Tommy, Tommy; Budiman, Arief
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15409

Abstract

In this era of increasingly advanced technology, data security is very important in maintaining the confidentiality of information, especially those containing sensitive information whose contents should only be known by the entitled party, especially if the delivery is made through a public network, if the data is not secured first. , will be very easy to be tapped and the contents of the information known by parties who do not have the authority. One way that is used for data security is to use a cryptographic system, namely by encoding or keying the information content using a data locking algorithm method. Here this author will discuss about generating IV using the LCG algorithm are combined by XORing everyption method in simple CBC cryptography where these two algorithm are combined by XORing every bit that exists with the key or block provided. Aims to produce plaintext that has been convertd into ciphertext or secret data. Keywords : data security, cryptographic algorithm lcg, xor cipher, simple cbc method.
Perancangan Media Pembelajaran Multimedia Interaktif Peninggalan Sejarah Indonesia Menggunakan Metode Web Based Learning (Study Kasus : SDS Cerdas Bangsa Namorambe) Sinuhaji, Suanti Perwita Br; Allwine, Allwine; Wijaya, Vera; Mardiah, Mardiah
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15616

Abstract

Education is one area that has a strong influence on internet technology, especially in teaching and learning activities. Technological development is inseparable from the utilization of Human Resources (HR) in supporting learning and being a solution in a lack of learning media on Indonesian historical heritage material in the SDS Cerdas Bangsa Namorambe Case study, especially in class IV SD students. Therefore the authors conducted research on interactive multimedia learning media. This learning media was made due to the lack of learning media so that the lack of design in learning made students less interested in the teaching and learning process so that it was made using web based learning methods. Web Based Learning (WBL) is a technology-based learning system that is used as the utilization of web technology in learning by delivering access to material through web pages. In developing the system used system analysis use case diagrams and activity diagrams with the type of research using the Research and Development (R & D) method. Keywords:Learning Media, Interactive Multimedia, Web Based Learning.
Klasifikasi User Berdasarkan Trafik Http/Https Menggunakan Metode Naïve Bayes Prayoga, Eko; Diansyah, T.M; Liza, Risko
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15698

Abstract

Along with the times and accompanied by advances in information and communication technology, it is undeniable that at this time all activities use information technology. One of the activities is to use the internet. The research will conduct a classification based on internet usage data obtained through questionnaires using data mining techniques. The attributes that will be used in doing the classification are Name, Age, Gender, Last Education. The method used is the Naïve Bayes method, which is one of the classification techniques in data mining. Based on the research conducted, it was concluded that based on internet user data used as training data, the Naïve Bayes method succeeded in classifying 32 data from 50 data tested. So the Naïve Bayes method succeeded in predicting the magnitude of the percentage of accuracy by 64%. Keywords : Data Mining, Classification, Naïve Bayes
Rancang Bangun Sistem Informasi Prakerin Berbasis Kepribadian Vokasi Menggunakan Metode Certainty Factor Muliyati, Muliyati; Hadi, Ahmaddul
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.12619

Abstract

SMK Cendana Padang Panjang merupakan Suatu pendidikan kejuruan yang dalam proses pendidikannya bekerja sama dengan dunia industri melalui program prakerin atau magang di perusahaan Siswa yang melaksanakan prakerin kesulitan untuk memilih tempat prakerin yang sesuai dengan kepribadian siswa sehingga siswa  tersebut merasa kebingungan setelah tiba di perusahaan. tujuan dibuat sistem tersebut untuk Memberikan kemudahan dalam membantu siswa untuk melakukan menentukan tempat prakerin,Penerapan metode certainty factor dalam algoritma untuk menentukan keahlian dan kepribadian siswa prakerin. Metode Certainty Factor adalah Metode yang digunakan untuk memberikan nilai keyakinan pada hasil akhir tes kepribadian  sistem  pakar. Certanity  Factor menunjukkan ukuran  kepastian  terhadap  suatu fakta  atau  aturan ketidakpastian direpresentasikan dengan  derajat kepercayaan yang di gunakan dalam pembuatan aplikasinya, Sistem ini dibangun menggunakan metode prototyping dimana tahapanya menganalisis data, membangun prototyping, proses desain yang cepat, evaluasi mengevaluasi sistem. Dimana hasil persentase yang didapat oleh siswa tkj 94,72% dan siswa tav 80,09% Hasil dari sistem ini dapat melakukan pemilihan tempat prakerin dan juga kriteria di perusahaan yang sesuai dengan kepribadian Siswa. Kata Kunci: Prakerin, PHP,Certainty Factor,Metode Prototyping.
Perancangan Sistem Monitoring Pegawai Berbasis Android Pada Politeknik Negeri Media Kreatif PSDKU Medan Andrian Andrian; Efrizal Siregar; Nurianti Sitorus; Reniwati Lubis; Syafriyandi Syafriyandi; Herri Trisna Frianto
ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA Vol 6, No 1 (2022): April 2022
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v6i1.16688

Abstract

Employee discipline is one indicator of an institution that has experienced an increase in good personal qualities. There are so many agencies that are developing and have a good image in the eyes of the public not because the products they produce are good but because of the discipline of employees or employees which causes service performance to their customers to increase. As is the case with the PSDKU Medan Creative Media State Polytechnic Campus, it can develop even better only by exercising discipline to its employees, both educational staff and teaching staff (lecturers). So far, employee discipline has only been monitored based on electric attendance provided by the university. But the problem is the existence of these employees in the institution. Very often some employees are not at the location during working hours so that it can reduce service to students or the community. Currently, on Android, there is GPS (Global Positioning System) technology that can provide location information where the user is during work hours. So by developing an Android application, it can access the location of application users which can prevent employees or employees from being in their proper place. This can solve the problems that occur at the PSDKU Medan Creative Media State Polytechnic.Kata kunci:  Monitoring System, Global Positioning System, Employee
Perancangan Sistem Smart Lighting Menggunakan Arduino Khairunnisa, Khairunnisa; Basyir, Muhammad Khalidin; Siregar, Yustria Handika
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 8, No 1 (2024): April 2024
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v8i1.21448

Abstract

In Indonesia, many users use electricity for light needs. There are two types of light sources, there is man-made light and there is natural light. The light source also only has two methods, namely turning it on and turning it off. No one can set the conditions for the light, in other words it has to be done manually. Therefore, the cause of electricity waste is manual use. In this case, researchers aim to create a control system for this light. With a system that is able to control the light control system automatically. Through a PIR sensor which will control movement to turn on the lights. The way it works is very easy, if there is movement the light will turn on.  Keywords: Arduino, System, Light
Penerapan Metode Dynamic Cell Spreading (Dcs) Untuk Menyembunyikan Teks Pada Video Batubara, Muhammad Iqbal Pratama; Rismayanti, Rismayanti; Annisah, Yessi Fitri
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 8, No 1 (2024): April 2024
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v8i1.21423

Abstract

Ease of communication creates a new need, namely securing information transmitted on the communication network from sender to receiver. One form of information sent is a picture. Easily sending information to various media often misuses data so that in this study the author will use the Steganography Technique, which is a technique and art to hide messages or information in a medium, such as text, images, audio or video which aims to avoid suspicion from people who not entitled to. This study utilizes a dynamic cell spreading (DCS) algorithm. The way the dcs algorithm works is that the message hiding is done by inserting it in the low LSB (Least Significant Bit) bit of the pixel data that makes up the file using a memory buffer as a temporary storage medium. The purpose of this research is to know how to design and analyze a data security application system with the steganography technique to hide data in video files with MP4 format using dynamic cell spreading (dcs) methods and to know the process of inserting data and extracting data in a video file with the format mp4. The results obtained are in the form of an application that can secure video files with the Mp4 format that can avoid data theft.Keywords: Data, media, steganography, algorithm

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