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Rancang Bangun Sistem Informasi Olah Alih Limbah Minyak Jelantah Ramah Lingkungan Hellyana, Corie Mei; Pratama, Eva Argarini; Mulyanto, Joko Dwi; Supriatiningsih, Supriatiningsih; Nouvel, Ahmad
Evolusi : Jurnal Sains dan Manajemen Vol 12, No 1 (2024): Jurnal Evolusi 2024
Publisher : Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/evolusi.v12i1.21882

Pemanfaatan minyak kelapa sawit di Indonesia menghadapi tantangan serius dalam bentuk peningkatan produksi limbah minyak jelantah. Upaya untuk mengubah limbah ini menjadi produk bernilai tambah seperti biodiesel menjadi semakin penting. Namun, proses ini membutuhkan keterlibatan aktif dari masyarakat secara luas, mengingat sebagian besar minyak jelantah berasal dari sampah rumah tangga. Saat ini, masih terdapat banyak masyarakat yang kurang memahami dampak lingkungan dan kesehatan dari pembuangan minyak jelantah secara sembarangan. Penelitian ini bertujuan untuk menyediakan solusi bagi masyarakat dalam mencari tempat yang dapat menampung minyak jelantah serta merancang sistem informasi berbasis website untuk mengelola dan mengalihkan minyak jelantah dari penyetor ke pengepul. Dengan demikian, penelitian ini diharapkan dapat memberikan manfaat dalam bentuk penyediaan informasi lokasi tempat penampungan minyak jelantah bagi penyetor, serta membantu pengepul dalam memperluas jaringan suplai minyak jelantah.

Penerapan Metode Waterfall Dalam Membangun Aplikasi Kursus Programming Berbasis Web Supriatiningsih, Supriatiningsih; Mulyanto, Joko Dwi
Informatics and Computer Engineering Journal Vol 5 No 1 (2025): Periode Februari 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/icej.v5i1.7435

Currently, the world of work requires skilled labor with work-ready skills. One of the skills needed in the world of work is computer skills. Course education institutions can be used as an alternative to learning the skills needed by the world of work. Therefore, many course education institutions (LPK) have sprung up that organize work-ready education to meet the needs of the world of work. Kurus programming is a course education institution that focuses on programming languages, namely web programming, java, and c++ which aims to help students to make projects or assignments. The coding course application system at skinny programming is a website-based system in the IT field, it is hoped that this system can help course management and facilitate student data management, scheduling and management of payment funds from students. With this system, it can facilitate students to register, select tutors, select the desired course class, and select the main material. The obstacles that researchers find in thin programming include registration, both students and tutors are still written by hand, making schedules and payment systems are also still done by recording all existing transactions using handwriting and in the book in writing, because using handwritten data is prone to loss such as being exposed to water or torn so that researchers make this system so that data is safe and easy to find again, difficulty in finding tutors that suit your needs and promotions that are not yet widespread. The method used is the Waterfall method which is divided into several stages: Software Requirements Analysis, Design, Program Code Generation, Testing and maintenance. For this reason, researchers try to create a web-based coding course information system in the hope that it can provide convenience for students or students in doing assignments.

APLIKASI PENCARIAN DAN PENGUMUMAN BARANG HILANG “CARLIK-CARI PEMILIK” BERBASIS MOBILE Mulyanto, Joko Dwi; wijianto, ragil; Saefudin, Saefudin; Sholahuddin, Affan
Informatics and Computer Engineering Journal Vol 3 No 2 (2023): Periode Agustus 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/icej.v3i2.1785

Generally, every soul has almost experienced the loss of something that previously existed and had no longer exists. The event off loss, especially of property, can cause anxiety for someone who is looking for lost items. This is because there is a possibility of someone will find the lost items. Currently, the process of searching and announcing lost items is not going well because of existing factors such as that information does no spread widely. Therefore, a media is needed that can be a place to accommodate information on the search and find of lost items with the intention of helping people find and return lost items. Android-based application development using Dart programming language, Flutter framework, Firebase database, and Nominatim API. Application development method using Software Development Life Cycle (SDLC) method with waterfall model and tested with black box testing method. The results of the application development indicate the application can run well according the required specifications and can be seen from black box testing with valid results

Perancangan Sistem Informasi Peminjaman Dan Pengembalian Buku Perpustakaan Berbasis Web Di Smk Tujuh Lima 1 Purwokerto Joko Dwi Mulyanto; Apriliyanti, Windi
Informatics and Computer Engineering Journal Vol 3 No 2 (2023): Periode Agustus 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/icej.v3i2.2250

The school library is part of the education component that cannot be saparated form the school environment. As one form of education, the school library function as a learning support for students as well as fosters interest in reading in order to achieve educational goals at school. The library is an instituttion that manages the collection of written, printed, and or recorded work professionally with a standard system to meet the needs of education, research, presevation, information and recreation of students as the use of the library. Based on the author’s research, SMK Tujuh Lima 1 Purwokerto is an educational institution where there is a library with a manual book-lending service system using a book recording method or it can be said that it has not been computerized, thus hampering lending activities within the library itself, using a computerized system so that it can lighten and facilitate activities in the library in borrowing and returning books. The software development method used is the prototype method. Then made a web-based book lending and return information system design which aims to make it easier for officers to manage library data and can minimize the riskof loss or damage to documents.

Penerapan Metode Waterfall Dalam Membangun Aplikasi Kursus Programming Berbasis Web Supriatiningsih, Supriatiningsih; Mulyanto, Joko Dwi
Informatics and Computer Engineering Journal Vol 5 No 1 (2025): Periode Februari 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/icej.v5i1.7435

Currently, the world of work requires skilled labor with work-ready skills. One of the skills needed in the world of work is computer skills. Course education institutions can be used as an alternative to learning the skills needed by the world of work. Therefore, many course education institutions (LPK) have sprung up that organize work-ready education to meet the needs of the world of work. Kurus programming is a course education institution that focuses on programming languages, namely web programming, java, and c++ which aims to help students to make projects or assignments. The coding course application system at skinny programming is a website-based system in the IT field, it is hoped that this system can help course management and facilitate student data management, scheduling and management of payment funds from students. With this system, it can facilitate students to register, select tutors, select the desired course class, and select the main material. The obstacles that researchers find in thin programming include registration, both students and tutors are still written by hand, making schedules and payment systems are also still done by recording all existing transactions using handwriting and in the book in writing, because using handwritten data is prone to loss such as being exposed to water or torn so that researchers make this system so that data is safe and easy to find again, difficulty in finding tutors that suit your needs and promotions that are not yet widespread. The method used is the Waterfall method which is divided into several stages: Software Requirements Analysis, Design, Program Code Generation, Testing and maintenance. For this reason, researchers try to create a web-based coding course information system in the hope that it can provide convenience for students or students in doing assignments.

Clustering of MSMEs Based on Assets and Turnover Using the K-Means Algorithm Supriatiningsih, Supriatiningsih; Nouvel, Ahmad; Joko Dwi Mulyanto; Ubaidillah, Ubaidillah
Jurnal Multidisiplin Sahombu Vol. 5 No. 07 (2025): Jurnal Multidisiplin Sahombu, November (2025)
Publisher : Sean Institute

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

Effective UMKM assistance requires business identification and grouping. Officially, UMKM in Indonesia are divided into Micro, Small, and Medium based on assets and turnover. This research aims to group UMKM in a Regency of South Sumatra by applying the K-Means Clustering algorithm using these two variables. The research stages include business understanding, data understanding, data processing, modeling, evaluation, and dissemination. From 15 test data, this study successfully applied K-Means to classify UMKM. The result was the formation of 3 clusters, consisting of 8 data (53%) in Cluster 1, 6 data (40%) in Cluster 2, and 1 data (7%) in Cluster 3. This result has been validated using RapidMiner and shows identical outcomes. This grouping can serve as a basis for stakeholders to provide more effective assistance

Implementasi Metode Waterfall dalam Sistem Informasi Rekuitmen Karyawan pada PT. Automobil Jaya Mandiri berbasis WEB Joko Dwi Mulyanto; Supriatiningsih Supriatiningsih; Indriyanti Indriyanti
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2064

The recruitment of PT Automobil Jaya Mandiri Purwokerto employees is the determination of a human resource management plan related to the large number of employees needed by PT Automobil Jaya Mandiri Purwokerto. PT Automobil Jaya Mandiri Purwokerto is one of the companies engaged in 3S automotive (Sales, Service, Spare Parts). PT Automobil Jaya Mandiri Purwokerto sometimes opens employee recruitment, but still applies manual systems such as applicant registration, selection tests, and recording applicant data. For this reason, a website-based employee recruitment system was created using the waterfall method in which there are several stages, namely software requirements analysis, design, program code creation, testing and support or maintenance to help disseminate information, add employees and assist manager performance. Meanwhile, the data modeling uses a structured method, namely Entity Relationship Diagram (ERD) to describe the data model and Logical Record Structure (LRS) makes it easier to define file specifications. This information system application on employee recruitment is a solution to be able to disseminate information about employee recruitment and selection online and can assist managers in managing payment data and transactions.

Evaluasi Metode Naive Bayes dan K-Nearest Neighbors untuk Analisis Sentimen pada Review Aplikasi Duolingo Joko Dwi Mulyanto; Dany Pratmanto; Aprih Widayanto; Pijar Sukma Prayogo; Andi Yoko Satrio
Evolusi : Jurnal Sains dan Manajemen Vol. 13 No. 2 (2025): Periode September 2025
Publisher : LPPM Universitas Bina Sarana Informatika Kampus Kabupaten Banyumas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/evolusi.v13i2.9937

Sentiment analysis is a valuable method for understanding user opinions on digital applications. This study evaluates the performance of the Naive Bayes and K-Nearest Neighbors (KNN) algorithms in classifying sentiments from user reviews of the Duolingo application obtained from the Google Play Store. The dataset consists of 2,000 reviews, comprising 1,000 negative (1-star) and 1,000 positive (5-star) reviews. Preprocessing was conducted in RapidMiner through several stages, including case transformation, tokenization, stopword removal, and stemming, with features represented using TF-IDF. The experimental results show that Naive Bayes achieved an accuracy of 79.96%, recall of 87.76%, precision of 77.21%, and an AUC of 96.40%. Meanwhile, KNN achieved an accuracy of 78.34%, recall of 75.32%, precision of 81.06%, and an AUC of 92.20%. These findings suggest that Naive Bayes outperforms KNN overall, particularly in sensitivity and class separation, while KNN produces more precise positive predictions. Therefore, the choice of algorithm should depend on analysis objectives, whether emphasizing broader sentiment detection or higher precision in positive sentiment classification.

Implementation of Zero-Shot DeBERTa and IndoBERT for Aspect-Based Sentiment Analysis on Reviews of Five LLM Applications Fabriyan Fandi Dwi Imaniawan; Ragil Wijianto; Vadlya Maarif; Joko Dwi Mulyanto; Mustofa Mustofa; Aprih Widayanto
Reputasi: Jurnal Rekayasa Perangkat Lunak Vol. 7 No. 1 (2026): Mei 2026
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/reputasi.v7i1.12790

Large Language Model (LLM) applications such as ChatGPT, Gemini, Copilot, Claude, and Perplexity have been massively adopted in Indonesia, yet user experience evaluation remains largely limited to global sentiment analysis. This study implements Aspect-Based Sentiment Analysis (ABSA) using a dual-Transformer approach: DeBERTa zero-shot for aspect extraction and IndoBERT for sentiment classification on 5,000 Indonesian-language reviews from the Google Play Store across four aspect categories. Manual validation by two annotators on 300 samples yielded Cohen’s Kappa of (aspect) and (sentiment), both Moderate. Evaluation against the gold standard showed aspect accuracy of 37.5% (weighted F1 = 0.42) and sentiment accuracy of 64.7% (weighted F1 = 0.61). Sensitivity analysis across five hypothesis templates revealed inter-template Kappa of 0.19–0.63, confirming template selection impact on predictions. Comparative analysis reveals Copilot achieves the highest satisfaction (mean score 4.67), while Claude records the most complaints (36.9% negative). This study contributes a validated comparative ABSA framework for Indonesian-language LLM applications

Computer-Based Test Application to Support E-Learning in Pandemic Situation Imam Soleh Marifati; Joko Dwi Mulyanto; Chandra Kesuma; Ubaidillah Ubaidillah; Suripah Suripah
PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic Vol. 9 No. 2 (2021): September 2021
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/piksel.v9i2.3102

The use of information technology in education is a new breakthrough. During the current COVID-19 pandemic, many teaching and learning activities are carried out online using the internet in the form of e-learning. one important part of e-learning is the test. Computer based test (CBT) can be implemented in schools that should be accessed by students from remote places. Computer-based test applications can be used as a complement to online learning by utilizing the web technology. Web-based applications allows access by students with an internet connection using PC/Laptop or other mobile devices. In addition, implementation costs can be saved because paperless. Computer-based test applications also make it easier for teachers to grade the answer where the application can automatically provide the score instantly when students finish the test. In this study, the application was built using the web technology that run from various devices and platforms. Access applications can be designed for local network use (intranet) or online by hosting the application on a webserver. The application development uses a system development life cycle approach using PHP-MySQL technology. Keyword : CBT, computer base test, PHP-MySQL, webapps.

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