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All Journal Sinkron : Jurnal dan Penelitian Teknik Informatika Query : Jurnal Sistem Informasi ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA JURNAL TEKNOLOGI DAN ILMU KOMPUTER PRIMA (JUTIKOMP) E-Link: Jurnal Teknik Elektro dan Informatika Journal of Computer Science, Information Technology and Telecommunication Engineering (JCoSITTE) Journal of Computer Networks, Architecture and High Performance Computing JIKEM: Jurnal Ilmu Komputer, Ekonomi dan Manajemen Journal of Informatics Management and Information Technology Jurnal Ilmu Komputer dan Sistem Komputer Terapan (JIKSTRA) Brilliance: Research of Artificial Intelligence EXPLORER Prosiding Snastikom Digital Transformation Technology (Digitech) Prioritas : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Bangsa Jurnal Ilmu Komputer dan Sistem Informasi Jurnal Pengabdian Masyarakat
Harahap, Herlina
Universitas Harapan Medan
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ALGORITMA C4.5 DALAM PEMETAAN POLA PENERIMAAN MAHASISWA BARU DI TEKNIK KOMPUTER: Data Mining Siregar, Yunita Sari; Sembiring, Boni Oktaviana; Hasdiana, Hasdiana; Dewi, Arie Rafika; Harahap, Herlina
Sinkron : jurnal dan penelitian teknik informatika Vol. 5 No. 2B (2021): Article Research October 2021
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v6i1.11154

Abstract

University of Harapan Medan is one of the private universities in North Sumatra which has computer-based study programs such as Informatics Engineering and Information Systems. Every year this college receives many registrations from students who have completed their education at the school stage. The large number of incoming student data makes it difficult for the admin to select new students who will register. In this study using the C4.5 algorithm data mining method to map the pattern of student admissions selection in the field of Engineering and computers. The attributes used are the average value of report cards (high, enough, low), basic academic ability tests (very high, high, medium, low, very low), basic computer knowledge tests (very high, high, enough, low, very low) and interviews (good, bad). Data mining is a mathematical calculation process that uses algorithms and requires large data. While the C4.5 algorithm is an algorithm that processes data by calculating entrophy and information gain, where after the calculation process is carried out, those who get the largest information gain value will become nodes and branches. This C4.5 algorithm will describe a decision tree that will form a pattern in student selection. The results of this study indicate that in mapping the selection pattern of interview attributes into level 1 nodes, the attributes of the basic computer knowledge test become the level 1 branch, the attributes of the basic academic ability test become the level 2 branch and the attribute average value of report cards becomes the level 3 branch.
IMPLEMENTASI METODE DISCRETE COSINE TRANSFORM (DCT) DAN BLOWFISH DALAM KEAMANAN VIDEO DIGITAL Khairani, Mufida; Harahap , Herlina; Siregar, Yunita Sari; Lubis, Yessy Fitri Annisa
Sinkron : jurnal dan penelitian teknik informatika Vol. 6 No. 1 (2021): Article Research Volume 6 Issue 1: January 2021
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v7i1.11286

Abstract

Collecting data partially or completely illegally without the permission of the owner causes losses to the copyright owner. This has a big impact in proving ownership of a digital media. To be able to prove ownership of the copyright, the Discrete Cosine Transform watermarking technique can be used by inserting the Blowfish cryptographic algorithm. Discrete Cosine Transform (DCT) is a method that converts digital data into the form of a frequency domain. The method used in the DCT transformation technique is to break the digital image into small blocks with a fixed size and then convert it from the spatial domain to the frequency domain. Blowfish works by dividing the message into 64-bit blocks of equal length with varying aty lengths that encrypt the data in 8 byte blocks. Messages that are not multiples of 8 bytes will be added extra bits (padding), so that the size for each block is the same. After the final result is obtained, the value is inserted into the digital video without destroying the original digital video. From the research that has been done in the implementation of digital video watermarking, it can be concluded that the Blowfish cryptography method and the Discrete Cosine Transform (DCT) watermarking cryptography method can be applied properly. In the watermarking process, digital image insertion does not damage the watermaratd video and at the security level it is provided with blowfish cryptographic encryption, so that it can increase security in copyright protection
MEDIA PENGENALAN ORGAN TUBUH MANUSIA DALAM BAHASA LATIN UNTUK SISWA SMP BERBASIS ADOBE AFTER EFFECT Bella Puspita; Herlina Harahap; Sumi Khairani
SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI Vol. 1 No. 1 (2020): PROSIDING SNASTIKOM 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.261 KB)

Abstract

Making media on the introduction of human body organs in Latin based on Adobe After Effect is aimed at junior high school students with the aim and purpose that junior high school students are more interested getting to know the human organs in Latin with this 2D animated video. Making media introduction to human organs in Latin based on Adobe After Effect through three applications, the Adobe After Effect application is used for making animation, Adobe Illustrator to draw all of characters, background settings or other ambience and Adobe Audition as audio editing manager before being combined into Adobe After Effect. The process of making this animation requires a story idea, scene and storyboard. There are several steps to make an animated object to become a 2D animation video, modeling or depiction of background characters and other ambience, audio editing and animation. The result of this animation research is a learning medium for human body organs in Latin for junior high school students which aims to provide information about animation the body organs in the human body along with an explanation.
Analisa Kombinasi Chain Code Dan Single Linkage Clustering Dalam Mengidentifikasi Karakter Ainun Naimah Pulungan; Herlina Harahap; Rosyidah Siregar
SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI Vol. 1 No. 1 (2021): Prosiding Snastikom 2021
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.373 KB)

Abstract

Character recognition (Optical Character Recognition) is pattern recognition. One method of pattern recognition that is widely used is Single Linkage Clustering and Chain Code whose system works like the human brain which can recognize patterns after training on some of the examples given. The final project prioritizes pattern recognition on characters. To get a pattern on each character, some features of the character itself are needed. The features taken on a character include Perimeter, Area, Shape Factor, Roundness for SLC and Chain Map for Chain Code. Feature retrieval using Single Linkage Clustering and Chain Code methods to be able to distinguish the shapes of the segments according to the given parameters.
Implementasi Sistem Pendukung Keputusan Menggunakan Metode Promethee Dalam Pemilihan Sepeda Motor Terlaris PT. Indako Trading Co Binjai Dinda Cahya Ramadhani; Herlina Harahap; Mufida Khairani
SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI Vol. 1 No. 1 (2021): Prosiding Snastikom 2021
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.555 KB)

Abstract

In building a best-selling motorcycle selection system, a decision support system is needed which is intended to assist decision makers in selecting the best-selling motorcycle at PT. Indako Trading Co Binjai by using data from survey results directly to the location. This system will be designed using the web and perform calculations using the Promethee Method. Where there are already determined criteria and alternatives which will later bring up an output of the best-selling motorcycle type at PT. Indako Trading Co Binjai. Based on the results of the analysis and design that has been carried out in the Promethee stage in calculating the Net Flow value, the first ranking results in the selection of the best-selling motorcycle at PT. Indako Trading Co Binjai is Vario 150.
Implementasi Algoritma CT-PRO Untuk Menentukan Pola Frekuensi Judul Skripsi Teknik Informatika Universitas Harapan Medan Muchriza Akbar Bancin; Herlina Harahap; Rismayanti
SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI Vol. 1 No. 1 (2021): Prosiding Snastikom 2021
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1056.913 KB)

Abstract

The thesis is a term used to describe a scientific book in the form of an explanation of the results studied. In this study there was a problem that every time a student made a thesis title was difficult for students to decide which topic to be discussed. So that the study program was also somewhat overwhelmed to provide input on what title would be appointed for the thesis. With the help of data mining the CT-Pro algorithm is expected to help the study program in determining the frequency pattern of the title of the thesis submitted by students. So that the study program can see students more likely to submit the title of the thesis in which direction, whether it is in accordance with the science they control or not. This research produces a media network in determining specialization in taking thesis titles.
Penerapan Teknologi RFID Untuk Pengendalian Ruang Kelas Berbasis Mikrokontroler Ade Zulkarnain Hasibuan; Herlina Harahap; Zulkardin Sarumaha
JURNAL TEKNOLOGI DAN ILMU KOMPUTER PRIMA (JUTIKOMP) Vol. 1 No. 1 (2018): Jutikomp Volume 1 Nomor 1 April 2018
Publisher : Fakultas Teknologi dan Ilmu Komputer Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jutikomp.v1i1.326

Abstract

Ruangan kelas merupakan salah satu fasilitas yang hamper digunakan setiap hari saat adanya proses perkuliahan. Biasanya ketika kuliah berlangsung didalam kelas ada saja permasalahan kecil yang timbul, hal ini bias menggangu proses perkuliahan. Oleh karena itu penerapan teknologi RFID pada ruangan kelas dapat membantu permasalahan saat akan dilakukannya proses belajar mengajar ataupun ketika proses belajar mengajar selesai. Dengan diterapkannya teknologi RFID pada ruangan kelas, dosen cukup melakukan scan pada tag RFID untuk membuka pintu, menghidupkan lampu, menghidupkan AC, dan menghidupkan infokus. Untuk menerapkan teknologi RFID ini pada ruangan kelas dibutuhkan rangkaian pengendalinya, untuk mengendalikannya dapat menggunakan mikrokontroler yang sudah dibuat dalam bentuk papan pengendali utama yaitu Arduino. Teknologi RFID ini dapat mengurangi permasalahan terutama masalah operasional listrik kammpus, dimana saat proses perkuliahan selesai maka seluruh perangkat yang berhubungan dengan listrik akan dimatikan secara otomatis ketika pintu dikunci.
Penerapan QR Code dan Vigenere Cipher Dalam Sistem Pelaporan Juru Parkir Ilegal Ade Zulkarnain Hasibuan; Munjiat Setiani Asih; Herlina Harahap
Query: Journal of Information Systems VOLUME: 03, NUMBER: 01, APRIL 2019
Publisher : Program Studi Sistem Informasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.172 KB)

Abstract

The number of illegal parking attendants creates problems around us, especially the losses received by the regional government. Parking money that should have contributed to regional income, but because of the presence of illegal parking attendants did not make the slightest contribution to the local government. Another problem is that the parking attendant often gives tariffs outside the normal tariff, so that the people are harmed. Therefore, with the development of current technology, it can help the public to report the illegal parking attendants, the system created in this study provides a solution where the parking lot business card will be given a QR Code marker, the public can scan the QR Code on the id card the parking attendant. If the parking attendant is indicated to be illegal, the public can report it directly using the application on their smart phone. In addition, the information contained in the QR Code is encrypted using vigenere cipher cryptography, it is intended that the information is guaranteed authentic and cannot be falsified by certain parties that aim to take advantage.Keywords:  QR Code, Parking Attendant, Smart Phone, Cryptography, Vigenere Cipher
Perancangan Augmented Reality Prosedur Pembuatan Akta Kelahiran Pada Dinas Kependudukan dan Catatan Sipil Kota Medan M. Arif Hasan; Herlina Harahap; Nur Wulan
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.v6i1.11633

Abstract

Currently, information for making birth certificates can only be found on the internet, information from people around and from the local population office. Researchers want to produce innovations and alternatives that are appropriate, effective and current to support the concept of information for citizens, especially on the concept of designing information media on birth certificate processing. Researchers want to produce information media that stimulates the mindset of citizens in thinking critically about problems and events that occur in their daily lives, because the nature of information media is to help them in the process of making birth certificates easily. The concept of AR on birth certificate management information produces information media that can directly provide information for making birth certificates wherever and whenever. The result of this research is an application that is run using an android smartphone that displays 3D objects when the smartphone camera is pointed at a marker.Keywords: Augmented Reality, Birth Certificate, Blender 3D, Unit
Penyuluhan Teknologi Pemberkasan Digital pada ASN Kecamatan Medan Labuhan Tommy Tommy; Andi Marwan Elhanafi; Herlina Harahap; Imran Lubis
Prioritas: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 01 (2019): EDISI SEPTEMBER
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/prioritas.v1i01.149

Abstract

Teknologi pemberkasan digital dan pemanfaatannya yang telah dilakukan saat ini masih banyak ditemukan kekeliruan sehingga dokumen digital tidak terstruktur dan terkesan berantakan. Padahal secara konsep terdapat beberapa faktor penting yang harus diperhatikan dalam pelaksanaan kegiatan pemberkasan digital. Beberapa faktor penting seperti format, struktur dan identifikasi, keamanan serta manajemen resiko terkesan diabaikan atau mungkin tidak memahami pentingnya faktor – faktor tersebut untuk menjaga keutuhan dan ketahanan dari dokumen digital. Pentingnya pemahaman terhadap konsep pemberkasan digital dapat dilihat pada pelaksanaan kegiatan administrasi seperti pada beberapa kantor Kecamatan seperti pada Kecamatan Medan Labuhan membuat dianggap perlunya dilakukan sosialisasi dan penyuluhan pemberkasan dokumen administrasi sehingga berdasarkan alasan tersebut maka pada kegiatan ini akan dilakukan sosialisasi dan penyuluhan pemberkasan digital pada Kecamatan Medan Labuhan.
Co-Authors Adji Abdur Rasyid Ahmad Zakir Ainun Naimah Pulungan Amelia Siregar Andi Arief Andi Marwan Elhanafi Andi Marwan Elhanafi, Andi Marwan Annisa, Syara Arief Budiman Arnes Sembiring Asih, Munjiat Setiani Bella Puspita Boni Oktaviana Sembiring Dedy Irwan Dewi, Arie Rafika Dharmawati Dinda Cahya Ramadhani Divi Handoko Divi Handoko Edy Rahman Syahputra, Edy Rahman Ernanda Wijaya Febryyantoro Febryyantoro Fera Damayanti Handoko, Divi hasdiana, hasdiana Hasdiana, Hasdiana Hasibuan, Ade Zulkarnain Imran Lubis IRWAN, DEDY Iskandar, Dicky Khairani, Mufida Lestari, Yuyun Dwi lubis, husni lubis, ihsan Lubis, Yessy Fitri Annisa M. Arif Hasan Muchriza Akbar Bancin Mufida Khairani Mufida Khairani Muhammad Zen, Muhammad Nur Wulan Nur Wulan, Nur Pangestu, Raka Nugraha Rahman, Sayuti Rismayanti Rismayanti Sarudin Sembiring, Boni Oktaviana Sinambela, Rini Rahmadani Sirait, Joni Putra Jhonhenri Siregar, Rosyidah Siregar, Yunita Sari Sumi Khairani Sumi Khairani, Sumi Suriati, Suriati Syahputri, Nenna Irsa Syara Annisa Annisa Tommy Tommy Tommy, Tommy Yanti, Risma Yessi Fitri Annisah Lubis Zulkardin Sarumaha