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All Journal E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Ilmiah Sinus Indonesian Journal of Business Intelligence (IJUBI) Jurnal TIKOMSIN (Teknologi Informasi dan Komunikasi Sinar Nusantara) Ittishal Educational Research Journal Jurnal Sistem Informasi Triguna Dharma (JURSI TGD) Jurnal Abdimas Terapan Jurnal Pengabdian Masyarakat Ilmu Komputer Abdi Karya: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Teknologi dan Pendidikan (MANTAP)
Raharja, Bayu Dwi
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Social Sciences Other

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Perancangan Aplikasi Mobile Berbasis Android untuk Meningkatkan Promosi Produk pada CV Putra Nugraha Hendro Wijayanto; Bayu Dwi Raharja; Iwan Ady Prabowo
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 12, No 3 (2021): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v12i3.7248

Abstract

Pemasaran merupakan salah satu kunci utama sebuah perusahaan dalam mengenalkan produknya. Di era transformasi teknologi informasi ini menuntut perusahaan bergerak cepat mengikuti perkembangan teknologi informasi. Khususnya dibidang pemasaran. CV Putra Nugraha merupakan salah satu perusahaan yang bergerak dibidang percetakan buku maupun majalah dalam skala kecil sampai besar. Perusahaan tersebut telah memiliki official website sebagai sarana untuk mengenalkan produknya ke konsumen. Hanya saja era saat ini perkembangan teknologi web mulai bergeser ke teknologi mobile. Beberapa aktifitas informasi katalog, pemesanan dan lainnya lebih mudah diakses dengan perangkat mobile. Sehingga perlu adanya tambahan teknologi alternatif untuk mendukung official website. Teknologi ini berupa aplikasi mobile berbasis Android. Dalam pembuatan aplikasi mobile berbasis Android ini dilaksanakan dengan tiga tahapan, yaitu: pengambilan data, perancangan, dan sosialisasi serta implementasi. Hasil akhir yang diperoleh adalah terbentuknya aplikasi Android yang dapat diakses lewat Google Playstore. Selain itu juga meningkatkan promosi produk dari CV Putra Nugraha. Dimana dengan naiknya promosi produk akan dapat meningkatkan jumlah pendapatan dari CV Putra Nugraha.
IMPLEMENTASI KOMPRESI CITRA DIGITAL DENGAN MENGATUR KUALITAS CITRA DIGITAL Bayu Dwi Raharja; Paulus Harsadi
Jurnal Ilmiah SINUS Vol 16, No 2 (2018): Juli 2018
Publisher : STMIK Sinar Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1092.268 KB) | DOI: 10.30646/sinus.v16i2.363

Abstract

Image is one of the most popular media used in today’s information exchange. Increased needs for the use of images must also be supported by available storage media. The imagery generated from each high-resolution camera device has a relatively large size. Image compression is a data compression application performed on digital image in order to reduce the redundancy of the data contained in the image so that it can be stored or transmitted efficiently.Image compression techniques can be grouped into two namely lossless compression and lossy compression. Lossy compression is a method to compress the image where compressed image decompression results are not the same as the original image because there is missing information, but still can be tolerated by the eye. Lossless compression is an image compression where the decompression of compressed images is the same as the original image, no information is lost. For the following image compression by reducing image quality that can still be tolerated by the eye.
Pengukuran Tingkat Kesadaran Keamanan Siber di Kalangan Mahasiswa saat Study From Home dengan Multiple Criteria Decision Analysis (MCDA) Andriani Kusumaningrum; Hendro Wijayanto; Bayu Dwi Raharja
Jurnal Ilmiah SINUS Vol 20, No 1 (2022): Vol. 20 No. 1, Januari 2022
Publisher : STMIK Sinar Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30646/sinus.v20i1.586

Abstract

Covid-19 pandemic has forced all sectors to be online. Likewise in higher education, college students must carry out their learning activities from home and use computer information technology. This high digital activity will make cyber-crime high. Measurement of cybersecurity awareness for students when studying from home can be a reference to educate students on the importance of cybersecurity. Its measurement used multiple criteria decision analysis or MCDA. Multi-criteria decision analysis (MCDA) is one of the elements risk managements contained in SNI ISO 31000. The measured dimensions were knowledge, attitude and behavior within areas of using passwords, email and internet, mobile devices, social media, incidents and consequences. The calculation of the weighting used the analytic hierachy process or AHP method. The results of the measurements showed a total value of 79.5% or entered at a moderate level. At this level, students already have good knowledge of cybersecurity readiness. However, students have not been maximal in applying it to their daily activities. The assessment of the knowledge dimension showed a value of 84%, attitude of 78.3% and behavior of 73.1%. It needs to be an increase in socialization in terms of cybersecurity. This result was 8.5% difference from previous research with different object and question components. It still showed the level of awareness at the level of "medium". Therefore, college students are better understanding the importance of cyber security and encourage themselves to become cybersecurity agents in the community.
PENERAPAN DISCRETE COSINE TRANSFORM (DCT) TERHADAP KOMPRESI CITRA DIGITAL Bayu Dwi Raharja
Indonesian Journal of Business Intelligence (IJUBI) Vol 4, No 1 (2021): Indonesian Journal of Business Intelligence (IJUBI)
Publisher : Program Studi S1 Sistem Informasi Fakultas Komputer dan Teknik Universitas Alma Ata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21927/ijubi.v4i1.1790

Abstract

Image compression is a process that can reduce image size. In general, there are two types, lossless compression and loss compression. The method usually used in the JPEG standard is lossy compression, which removes some of the image information and takes advantage of the weakness in the insensitivity of the human eye in recognizing color gradations. With such large storage, data transfer or exchange is also increasingly difficult, especially data exchange using small storage areas. Tools that usually limit the size of storage for exchanging data. From the existing results using the DCT method is able to compress files up to 96%. Can be seen from the overall file average up to 74%
ANALISIS EFEKTIFITAS MEDIA PROMOSI TERHADAP PENERIMAAN MAHASISWA BARU (PMB) Bayu Dwi Raharja
Indonesian Journal of Business Intelligence (IJUBI) Vol 3, No 2 (2020): Indonesian Journal of Business Intelligence (IJUBI)
Publisher : Program Studi S1 Sistem Informasi Fakultas Komputer dan Teknik Universitas Alma Ata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21927/ijubi.v3i2.1436

Abstract

The level of competition for new student admissions at tertiary institutions in the Central Java region for the last 5 years is quite high. STMIK Sinar Nusantara has also experienced the impact of competition, which can be seen through the decline in new students by an average of 20% in the last 5 years. This study aims to determine how much influence the promotional media has on the acceptance of new students. By collecting data from questionnaires that have been distributed to 69 parents of STMIK Sinar Nusantara students. Where these students entered college from batch 2015, 2016, 2017, 2018 and 2019. The promotional media studied included print media, namely posters, brochures and billboards. And electronic media, namely radio and websites, as well as other media through daily conversations. After the data is tested for validity, reliability test and classical assumption are processed to produce a regression equation. Hypothesis testing shows that the three independent variables studied, namely the print media (X1), electronic media (X2) and other media (X3) variables, have a positive effect on the dependent variable, namely New Student Admissions (Y). Through variable X1, it has a coefficient value of 0.990, which means the effectiveness of print media has a positive influence on registrant interest (Y), as well as variables X2 and X3, each of which has a coefficient value of X2 = 0.787 and X3 = 0.626.
EVALUASI SISTEM INFORMASI REGISTRASI (SIREG) SELEKSI PENERIMAAN MAHASISWA BARU (SIPENMARU) POLITEKNIK KESEHATAN KEMENKES SURAKARTA MENGGUNAKAN FRAMEWORK COBIT 2019 kantona, riki kantona; fitriasih, sri hariyati; raharja, bayu dwi
Jurnal Teknologi Informasi dan Komunikasi (TIKomSiN) Vol 12, No 1 (2024): Jurnal TIKomSiN Vol 12, No. 1 April 2024
Publisher : STMIK Sinar Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30646/tikomsin.v12i1.812

Abstract

Health Polytechnic of the Ministry of Health Surakarta uses the Registration Information System (SIREG) as a tool for New Student Admission Selection (SIPENMARU) processing registration data in order to improve efficiency, performance and provide valid information . In implementing the Registration Information System, In the use of SIREG to date, no audit or evaluation of the implementation of the system has ever been carried out. Given the importance of the function of SIREG on performance performance in new student admission services, it is necessary to conduct an evaluation related to the assessment of the maturity level of the implementation of the SIREG application, with this evaluation it can determine the extent of the implementation of IT governance, especially in the Registration Information System. From this, the purpose of this study is to evaluate the maturity level of the Registration Information System. This research uses reference to the COBIT 2019 Framework framework domain, namely APO (Align, Plan and Organize): APO-04 and APO-12. The results of the maturity level research in the objective domain APO04 (Innovation Management) get a value of 3.3 with Level 3 Category: Defined and there is a gap of 1.7 so that agencies still need to prepare documentation related to the evaluation and follow-up of innovations in IT governance development, especially in the Registration Information System to achieve a maturity level achievement index of 4 (Quantitative), the objective domain APO12 (Risk Management) gets a value of 1.89 with Level 2 Category: Manage, and there is a gap of 3.11 so that agencies still need to prepare documentation related to planning, monitoring, evaluation and follow-up of IT governance risk management, especially in the Registration Information System to achieve a maturity level achievement index of 3 (Defined).
Content-Based Filtering pada Sistem Rekomendasi Buku Informatika Ridhwanullah, Dziky; Kumarahadi, Yovita Kinanti; Raharja, Bayu Dwi
Jurnal Ilmiah SINUS Vol 22, No 2 (2024): Vol. 22 No. 2, Juli 2024
Publisher : STMIK Sinar Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30646/sinus.v22i2.840

Abstract

There are changes taking place in Indonesia's educational system, particularly in universities. The learning approach used in the transformation program is student-centered. A firm foundation in literacy is required for the application of this learning. A library is one of the amenities that students require. The library is an ideal resource for pupils to enhance their critical thinking skills. It's not always simple to find books in the library, though. Students could find it challenging to locate the books they seek because there are so many collections already in existence. One method for doing book searches is through the use of a recommendation system. Using content based filtering is one recommendation system algorithm. This study suggests a content based filtering algorithm-based book recommendation system to facilitate students' search for informatics book titles. TF-IDF and Cosine Similarity are used in a similarity search to find phrases and assign weights to them. The content-based filtering algorithm's research findings might suggest books depending on user-specified parameters. 90% accuracy is the average for this method.Keywords: recommendation system, content based filtering, TF-IDF, Cosime Similarity
Simple Additive Weight Method in Determining Promotion Target for New Student Admission at STMIK Sinar Nusantara Dziky Ridhwanullah; Hartanto, Budi; Raharja, Bayu Dwi
Ittishal Educational Research Journal Vol. 5 No. 1 (2024): Ittishal Educational Research Journal
Publisher : International Islamic Schools Alliance

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51425/ierj.v5i1.67

Abstract

Each university will hold PMB (New Student Admission) activities. Similar to STMIK Sinar Nusantara, which is one of private universities in Surakarta, these events are held annually to draw in individuals who wish to pursue higher education. This is a very significant activity for a private university, with a new improvement target each year. At a private university, the number of new students is crucial because it is the primary source of funding. Activities of New Student Admission (PMB) at STMIK Sinar Nusantara have shown a decreasing tendency for a number of years. Institutional development and instructional activities will be impacted by this. One of the reasons is the widespread adoption of promotional targets that lack a scholarly foundation. Therefore, a decision support system is required to solve this issue. This study aims to assist policy makers in selecting appropriate promotion targets. The technique in this research is Simple Additive Weighting (SAW). The school promotion targets derived from the school ranking order and cluster classification are the outcomes of this study. With a score of 0.96, SMKN 1 Bulukerto School got the highest preference computation score. SAW method-based decision support system has been successful in identifying the appropriate promotional targets. The results of this research can be used by policy makers organizing activities of new student admission in promoting STMIK Sinar Nusantara to increase the number of new students.
PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF MATA PELAJARAN MATEMATIKA Waskitho, Anggit Widhi; Siswanti, Sri; Raharja, Bayu Dwi; Teguh Susyanto; Irawati, Tri; Wijayanto, Hendro; Vulandari, Retno Tri; Harjanto, Sri
Jurnal Pengabdian Masyarakat Ilmu Komputer Vol. 1 No. 2 (2024): Mei
Publisher : Yayasan Nuraini Ibrahim Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59407/jpmik.v1i2.788

Abstract

Media pembelajaran interaktif mata pelajaran Matematika dengan menggunakan Adobe Flash CS 6 ini berisi materi tentang bangun-bangun yang termasuk dalam kesebangunan dan kongruen. Tujuan pengabdian masyarakat ini adalah menciptakan sebuah aplikasi media pembelajaran interaktif mata pelajaran Matematika materi kesebangunan dan kongruen dengan menggunakan Adobe Flash CS6 di SMP Negeri 24 Surakarta. Materi kesebangunan dan kongruen merupakan materi pelajaran yang membutuhkan banyak contoh dan pratikum dalam proses belajar, jika hanya menggunakan buku yang bersifat monoton, membuat siswa sulit untuk membayangkan apa yang dimaksud soal dan latihan. Hasil berupa aplikasi media pembelajaran interaktif mata pelajaran Matematika materi kesebangunan dan kongruen dengan menggunakan Adobe Flash CS6 yang disertai dengan latihan soal yang dapat digunakan sebagai alat bantu pengajar dalam pembelajaran ataupun digunakan secara mandiri oleh pengguna.
Pengelompokkan Film Trending di Youtube Menggunakan TF-IDF dan K-Means Clastering Remawati, Dwi; Wijayanto, Hendro; Wahyu Utami, Yustina Retno; Raharja, Bayu Dwi
Jurnal Sistem Informasi Triguna Dharma (JURSI TGD) Vol. 4 No. 1 (2025): EDISI JANUARI 2025
Publisher : STMIK Triguna Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53513/jursi.v4i1.10614

Abstract

YouTube telah menjadi platform utama untuk konsumsi konten video, dengan tren video yang terus berkembang sesuai perubahan minat audiens. Penelitian ini bertujuan untuk mengelompokkan film trending di YouTube berdasarkan judul dan popularitasnya menggunakan pendekatan TF-IDF dan K-Means Clustering. TF-IDF digunakan untuk mengekstraksi fitur dari judul video, mengidentifikasi kata-kata kunci penting yang mencirikan tema setiap film. Algoritma K-Means kemudian digunakan untuk mengelompokkan video ke dalam beberapa cluster berdasarkan kemiripan fitur TF-IDF dan jumlah views. Hasil penelitian menunjukkan bahwa video dapat dikelompokkan ke dalam tiga cluster dengan karakteristik unik. Cluster pertama berisi video dengan tema komedi, aktor populer, dan jumlah views tinggi. Cluster kedua mencakup video dari berbagai genre dengan jumlah views yang bervariasi. Cluster ketiga terdiri dari video yang lebih spesifik dengan popularitas tinggi. Evaluasi menggunakan Silhouette Score menunjukkan bahwa kualitas clustering masih dapat ditingkatkan. Penelitian ini memberikan wawasan bagi kreator konten dan pemasar digital untuk menyusun strategi konten yang lebih menarik dan relevan, serta memberikan kontribusi akademis dalam analisis data berbasis teks.
Co-Authors Adi Guno, Sepbianto Andriani Kusumaningrum Andriani Kusumaningrum Bebas Widada Budi Hartanto Didik Nugroho Dwi Remawati Dziky Ridhwanullah Hendrianto, Yogi Hendro Wijayanto Iwan Ady Prabowo kantona, riki kantona Kumarahadi, Yovita Kinanti Kurniawan , Angga Eka Nugroho, Muhammad Ghifari Nugroho, Novianto paulus harsadi Rahmatika Rahmatika Retno Tri Vulandari Ridhwanullah, Dziky Sri Hariyati Fitriasih Sri Hariyati Fitriasih, Sri Hariyati Sri Harjanto Sri Siswanti Teguh Susyanto Tri Irawati, Tri Tyas Wulandari Waskitho, Anggit Widhi Wijayanto , Hendro Wijayanto, Bagoes Syukron Wijayanto, Hendro Yustina Retno Wahyu Utami