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All Journal Jurnal TIMES IJEBD (International Journal Of Entrepreneurship And Business Development) METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi MATRIK : Jurnal Manajemen, Teknik Informatika, dan Rekayasa Komputer METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Jurnal Informatika Kaputama (JIK) Jurnal Pengabdian Pada Masyarakat METHABDI TAMIKA: Jurnal Tugas Akhir Manajemen Informatika & Komputerisasi Akuntansi

Mufria J. Purba

Universitas Methodist Indonesia

Author-ID : 2546498

Religion Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Physics Public Health

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ENSEMBLE LEARNING DAN ANALISIS SENTIMEN PADA DATA ULASAN PRODUK Rimbun Siringoringo; Resianta Perangin Angin; Mufria J. Purba
Jurnal Informatika Kaputama (JIK) Vol 3, No 2 (2019): VOLUME 3 NOMOR 2, EDISI JULI 2019
Publisher : STMIK KAPUTAMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/jik.v3i2.161

The majority of internet users are currently searching the internet before buying certain products. One consideration of prospective buyers is product reviews (product review). Prospective consumers can decide to buy a product because it is influenced by reviews with positive sentiments, or decide not to buy a particular product because it is influenced by a negative sentiment review. Product reviews are a way of delivering consumer opinions and sentiments to a product online. In essence, the product review data mined directly from the database is unbalanced, between positive sentiment and negative sentiment. This condition makes it difficult for machine learning algorithms to perform classification and clustering functions. In this study, sentiment analysis was conducted based on Trendy Shoes products from Denim Shoes. The stages of sentiment analysis consist of data collection, initial processing, data transformation, feature selection and classification stages using SMOTEBoost. Initial processing applies the stages of text mining namely case folding, non alpha numeric removal, stop words removal, and stemming. The results of sentiment analysis were measured using the criteria of Accuracy, G-Mean, and F-Measure. By applying the test to two types of sentiment data, the results show that SMOTEBoost can classify sentiments well. SMOTEBoost's performance is compared to other ensemble techniques namely ADABoost, RUSBoost, and SMOTEBagging. Classification results of review_1 data, SMOTEboost is better in accuracy and G-Mean. While for the review_2 data, SMOTEBoost has better results for all criteria, both accuracy, F-Measure and G-Mean

SEGMENTASI DAN PERAMALAN PASAR RETAIL MENGGUNAKAN XGBOOST DAN PRINCIPAL COMPONENT ANALYSIS Rimbun Siringoringo; Resianta Perangin-angin; Mufria J. Purba
METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Vol. 5 No. 1 (2021): METHOMIKA: Jurnal Manajemen Informatika & Komputersisasi Akuntansi
Publisher : Universitas Methodist Indonesia

The growth of the online retail market in Indonesia is an excellent business opportunity. It is predicted that this growth will continue to move upward due to the increasing internet penetration. With greater exposure to brands, products and offerings, consumers become smarter and wiser in their purchasing decisions. Offering goods and services that match the tastes and behavior of consumers is very important to maintain business continuity. So far, the models developed are divided into two major parts, namely the time series approach and machine learning. In this study, segmentation and forecasting of online retail sector sales were carried out using extreme gradient boosting (XGBoost). The data used in this study is an online retail dataset obtained from the UCI repository. The k-means clustering (KMC) method is applied to determine the target or data class. Principal component analysis (PCA) is applied to reduce data dimensions by eliminating irrelevant features. Model evaluation is based on confusion matrix and macro average ROC curve. Based on the research results, XGBoost can perform retail data classification well, this can be seen through confusion matrix metrics and ROC curves.

SIMULASI PEMANFAATAN IPCOP SEBAGAI PC ROUTER DALAM JARINGAN LOCAL (LAN) DI LABORATORIUM FE-UMI Alexander Simanullang; Junika Napitupulu; Jamaluddin Jamaluddin; Mufria J. Purba
METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Vol. 2 No. 1 (2018): METHOMIKA: Jurnal Manajemen Informatika & Komputersisasi Akuntansi
Publisher : Universitas Methodist Indonesia

Penelitian ini bertujuan untuk membangun dua jaringan komputer lokal yang memiliki IP address berbeda dan dilengkapi PC Router, dan diharapkan dapat dimanfaakan oleh mahasiswa, dosen dan staf administrasi untuk memperoleh informasi dari internet. Penelitian ini dilakukan di lingkungan Fakultas Ekonomi Universitas Methodist Indonesia. Analisis penelitian ini dilakukan dengan cara menguji koneksi dari PC Server ke PC Client, Hasil dari tugas akhir ini diperoleh dua jaringan komputer lokal yang memiliki IP adrress berbeda dapat mengakses internet melalui satu PC router. Berdasarkan hasil penelitian ini, dapat disarankan dilakukan pengembangan mengenai pemanfaatan ORANGE Interface, bandwith shaping, dan firewall pada PC router.

ANALISIS KUALITAS INTERNET TEKNOLOGI 4G DI KOTA MEDAN DENGAN SISTEM KOMUNIKASI BERGERAK Mufria J. Purba; Samuel V. B. Manurung
METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Vol. 2 No. 2 (2018): METHOMIKA: Jurnal Manajemen Informatika & Komputersisasi Akuntansi
Publisher : Universitas Methodist Indonesia

Teknologi LTE merupakan teknologi sinyal jaringan internet yang mampu menghasilkan data rate sebesar 100 Mbps. Dengan adanya teknologi jaringan 4G maka pengguna dapat melakukan download ataupun upload data dengan kapasitas yang tinggi. Namun dengan kemampuan tersebut jika dilakukan secara bersamaan oleh banyak pengguna maka akan mengakibatkan tingginya interferensi yang dapat menurunkan kualitas jaringan. Beberapa faktor yang dapat menentukan kualitas jaringan yaitu semakin rendahnya packet loss, rendahnya delay dan tingginya nilai throughput. Tujuan dari penelitian ini adalah untuk mengamati kualitas jaringan internet dengan sinyal jaringan 4G pada wilayah padat penduduk atau padat pengguna di Kota Medan. Metode yang digunakan pada penelitian ini adalah metode drive test yang dilakukan oleh peneliti dan memilih salah satu provider telekomunikasi di Indonesia yaitu Telkomsel. Kemudian hasil pengukuran tersebut akan dibandingkan dengan perhitungan secara teori. Dari hasil penelitian ini analisis kualitas jaringan 4G di kota Medan dari semua provider yang diteliti rata – rata sinyal terbaik yang diperoleh adalah provider Telkomsel dengan kecepatan rata–rata 1988813 bps.

Pemanfaatan Aplikasi Customer Relation Management pada koperasi Samuel Manurung; Mufria J. Purba
MATRIK : Jurnal Manajemen, Teknik Informatika dan Rekayasa Komputer Vol 19 No 1 (2019)
Publisher : LPPM Universitas Bumigora

Cooperatives are usually referred to as a means to help people from low economic circles up to economic conditions upwards. With the existence of a unit for savings and loans can help the community in the district of Kabanjahe open a business in improving the economy of the people in Kabanjahe. Payment of invoices by customers and events to be carried out by cooperatives never arrive due to a lack of information received by customers. Therefore we need a system that is very helpful in the process of supporting events in the cooperative. The CRM (Customer Relationship Management) application can assist in the notification process and simplify the cooperative payment transaction process. This research can facilitate the cooperatives and cooperative members in conducting transactions and is very helpful also to customers in the notification process of cooperative activities and customer bills and notifications are given 3 days before the activities or events from CU.

PERANCANGAN APLIKASI PENGISIAN KRS KHS BERBASIS ONLINE Mufria J Purba
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 2 No. 2 (2016): Nopember 2016
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v2i2.46

Development of Science and Technology in this era of globalization affect people's lives in all fields. Everything is expected to be done quickly and accurately (appropriate technology) to all areas of life. To be able to survive and compete in the business world requires the development of strategies and expected to take advantage of technological developments.The world of education is also a field that must continue to innovate with technology. One way that can be used in the use of technology in education is the filling of KRS and KHS online, so as to optimize the performance of students and employees.KRS application design and KHS is intended to improve the performance of a campus to be more effective. Therefore students should not come to campus to take the form and fill in KRS. Students are also able to see KHS anywhere. In addition to the management side can also optimize the data storage of any student who is active and alumni of the college.

SISTEM PENENTUAN PEMBERIAN PINJAMAN DANA PADA KOPERASI SIMPAN PINJAM MENGGUNAKAN METODE SIMPLE ADDITIVE WEIGHTING Gortap Lumbantoruan; Mufria J Purba
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 6 No. 2 (2020): September 2020
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v6i2.245

In providing loans, cooperatives have stages that must be passed before credit is decided to be disbursed. The aim is to facilitate cooperatives in assessing the feasibility of a credit application. The loan eligibility assessment is carried out with many assessment criteria including employment, income, capital/shares, number of dependents, and house status. Analysis of loan eligibility requires the accuracy of a credit analyst in analyzing credit applicants submitted by members. If the credit analysis is not precise, then the provision of credit funds can be difficult and even make a loss. So to determine whether a loan application can be accepted or not, of course, cooperative management has many multi-criteria considerations. In this study, an analysis was carried out using the Simple Additive Weighting method to facilitate the process of making feasibility decisions and eliminating lending to prospective debtors. The results of the study show that the results of the calculation of the determination of lending funds to members of savings and loan cooperatives using the simple additive weighting method can show alternatives that are eligible to receive loans with a preference value >= 60% and also alternatives that are not eligible to receive loans, namely with a preference value of <= 60%.

IDENTIFIKASI KEPRIBADIAN DALAM PENDEKATAN PEMBELAJARAN DENGAN MENERAPKAN METODE CERTAINTY FACTOR Gortap Lumbantoruan; Mufria J Purba
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 6 No. 1 (2020): Maret 2020
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v6i1.248

An educator is important to know and understand the personality of a student so that the educational process can take place properly so that it can get maximum results. Because students have different personality types and the personality type of a student shows how students accept the learning material provided by the teacher. In the teaching and learning process, educators who do not understand the personality of students will find it difficult to deliver learning materials that will attract students' interest, which will hamper the knowledge transfer process. In this study, the identification of the personality of students using the certainty factor method and the types of personality analyzed were choleric, melancholic, phlegmatic and sanguinis. Based on the personality traits of each. The goal is to make it easier for educators to find ways to educate according to the personality of students. The results obtained are that by using the certainty factor method, the personality of a student is obtained based on the characteristics of the student with a confidence level of 88.43%.

Use Of Customer Relationship Management Application For Credit Union Samuel Manurung; Mufria J Purba
IJEBD (International Journal of Entrepreneurship and Business Development) Vol 3 No 1 (2019): September 2019
Publisher : LPPM of NAROTAMA UNIVERSITY

Cooperatives are legal entities based on the principle of kinship, which consist of all members of natural or legal persons for the welfare of their members. Where most people want to open a business, it has to have a lot of capital to keep the business from running or growing. Kabanjahe The majority of the population opens a shop to meet their daily needs. The existence of a savings and loan unit can help people in the Kabanjahe region to open a business to improve the economy of people in Kabanjahe. Therefore, we need a system that is very helpful in the cooperative's transaction process. The Customer Relationship Management (CRM) application can support the notification process and simplify the cooperative payment process. This research can help cooperatives and cooperative members to conduct transactions and help members with notification of the funds spent and the date of the last payment of the paper.

PELATIHAN PEMBUATAN KONTEN PEMBELAJARAN DARING PADA SMK SWASTA GELORA JAYA NUSANTARA MEDAN Rena Nainggolan; Roni Jhonson Simamora; Rasmulia Sembiring; Mendarissan Aritonang; Siti Normi; Junika Napitupulu; Melanthon Rumapea; Mufria J. Purba; Rijois I. E. Saragih
Jurnal Pengabdian Pada Masyarakat METHABDI Vol 1 No 1 (2021): Jurnal Pengabdian Pada Masyarakat METHABDI
Publisher : Universitas Methodist Indonesia

The purpose of community service activities is to implement the Tri Dharma of Higher Education and to contribute ideas and transfer technology to teaching staff at SMK Gelora Jaya Nusantara Medan. This service activity was carried out for 2 days. The training materials are Video Recording and Video Editing. The topic given in this training is the creation of online learning content. The material given is the use of Filmora X software. This topic is very much needed to equip teachers in preparing and delivering subject matter during this covid-19 pandemic. This topic was deliberately chosen considering that currently, teachers have difficulty in delivering subject matter face to face.

Co-Authors Alex Holyfiel Manullang Alexander Simanullang Aritonang, Mendarissan Darwis Robinson Manalu Doli Hasibuan Edward Rajagukguk Emma Rosinta Simarmata Ericho Elovando Surbakti Eva Julia G. Harianja Fati Gratianus Nafiri Larosa Gea, Asaziduhu Gortap Lumbantoruan Harianja, Eva Julia G. Hasibuan, Doli Helen Fransisca Simanungkalit Humuntal Rumapea Hutapea, Marlyna I. Indra Kelana Jaya Jamaluddin Jepriyanta N. Brahmana Jhoni Maslan, Jhoni Jimmy F. Naibaho Junika Napitupulu Lestari Pakpahan Lumbanraja, Posma Lyna M. N. Hutapea Mahendra Tlapta Sitepu Manurung, Samuel Marpaung, Flora Marzuki Sinambela Melanthon Rumapea Nainggolan, Rena Nettina Samosir Nova Soraya Simanjuntak Panjaitan, Calvin Nicolas Petty Exclesia Pardosi Purba, Eviyanti Novita Rasmulia Sembiring Rena Nainggolan Resianta Parangin-angin Resianta Perangin Angin Resianta Perangin-Angin Rijois I. E. Saragih Rijois Iboy E. Saragih Rimbun Siringoringo, Rimbun Rumapea, Yolanda Y. P. Samuel Manurung Samuel V. B. Manurung Sarkis, Indra M. Silalahi, Arina Prima Siti Normi Sitorus, Hegi Audria Sri Agustina Rumapea Surianto Sitepu Widya Ompusunggu Yohana Angelita Manullang Zalukhu, Delianus

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