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All Journal Jurnal Ilmiah Sinus Indonesian Journal of Business Intelligence (IJUBI) Ittishal Educational Research Journal Jurnal Pengabdian Masyarakat Ilmu Komputer
Bayu Dwi Raharja
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Religion Humanities Computer Science & IT Decision Sciences, Operations Research & Management Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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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.
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.
Simple Additive Weight Method in Determining Promotion Target for New Student Admission at STMIK Sinar Nusantara Dziky Ridhwanullah; Budi Hartanto; Bayu Dwi Raharja
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 Anggit Widhi Waskitho; Sri Siswanti; Bayu Dwi Raharja; Teguh Susyanto; Tri Irawati; Hendro Wijayanto; Retno Tri Vulandari; Sri Harjanto
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.
Co-Authors Anggit Widhi Waskitho Budi Hartanto Dziky Ridhwanullah Hendro Wijayanto paulus harsadi Retno Tri Vulandari Sri Harjanto Sri Siswanti Teguh Susyanto Tri Irawati