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All Journal International Journal of Electrical and Computer Engineering Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal INKOM Jurnal Teknik Elektro International Journal of Advances in Intelligent Informatics CESS (Journal of Computer Engineering, System and Science) Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Informatika Bianglala Informatika : Jurnal Komputer dan Informatika Akademi Bina Sarana Informatika Yogyakarta Indonesian Journal on Software Engineering (IJSE) Jurnal Pilar Nusa Mandiri Faktor Exacta Techno Nusa Mandiri : Journal of Computing and Information Technology Teknologi Indonesia Jurnal Manajemen Informatika dan Sistem Informasi Jurnal Tata Kelola dan Kerangka Kerja Teknologi Informasi Attractive : Innovative Education Journal Buletin Poltanesa Journal of Students‘ Research in Computer Science (JSRCS) Reputasi: Jurnal Rekayasa Perangkat Lunak JEEE- Journal of Electrical And Electronics Engineering eProceedings of Engineering Jurnal INFOTEL
Didi Rosiyadi
Pusat Penelitian Informatika Lembaga Ilmu Pengetahuan Indonesia Komplek LIPI, Jalan Cisitu No 21/154D Bandung 40135 Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Other

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A ROBUST WATERMARKING SCHEME AGAINTS VARIOUS ATTACKS BASED ON DCT IN FIVE DIFFERENT POSITIONS OF THE HOST IMAGE AREA Rosiyadi, Didi; Muttaqien, Furqon Hensan
Teknologi Indonesia Vol 36, No 3 (2013)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v36i3.206

Abstract

This paper proposed a robustness watermarking scheme against various attacks based on Discrete Cosine Transform (DCT) in fi ve different positions of the host image area. The scheme comprises the level of watermark resistance and the level of host image perceptibility against various attacks. Here, the level of resistance of a watermark image can be seen from the value of Normalized Correlation Coeffi cient (NC). Meanwhile, the level of perceptibility of an image of host image can be seen from the value of its Peak Signal to Noise Ratio (PSNR). In this proposed research, a method of the Non Blind Discrete in which a host image is required in the process of extraction is used. This watermark, furthermore, is positioned in a visible way in fi ve different positions of the host image; those are on the upper left, lower left, upper right, lower right and on the middle. For the type of attacks, this research uses geometric attacks consisting of Rotation, Scaling and Cropping. The result of this research then shows the level of resistance and the level of perceptibility for all images, and obtains the most robust watermark scheme against various attacks.
Metode Reduksi ISO Image Sistem Operasi Open Source Berbasis Linux Suryana, Nana; Rosiyadi, Didi
INKOM Journal Vol 6, No 2 (2012)
Publisher : Pusat Penelitian Informatika - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.inkom.193

Abstract

In this paper, the Reduction Method of ISO image for Operating System of Linux Distro (Open Source Based on Linux) is proposed. IGOS Nusantara as a Linux Distro is used on this study. The reduction method of ISO image for IGOS Nusantara consists of modules elimination and usage of an optimal compression technique. Using the reduction method optimally on the rpm files of the application packages of IGOS Nusantara will decrease their sizes. Experiment results demonstrate that some of the rpm files can be reduced from 40 MB to 29 MB. All reduced rpm files and other modules are processed into ISO image. By this method, the original size 890 MB of ISO image can be shrinked into 685 MB. The small and compact size of ISO image are very useful to save the internet bandwidth in downloading IGOS Nusantara and also to make it more responsive when it is used by users.
Pengembangan Layanan Sistem Informasi dengan Enterprise Architecture Planning (Studi Kasus : Rumah Sakit Umum Daerah Kota Bandung) Adnyana, I Ketut Widhi; Putra, Yeffry Handoko; Rosiyadi, Didi
INKOM Journal Vol 9, No 2 (2015)
Publisher : Pusat Penelitian Informatika - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1049.562 KB) | DOI: 10.14203/j.inkom.421

Abstract

Perkembangan teknologi telah mengubah manusia dalam menyelesaikan semua pekerjaan dan segala aspek kehidupan manusia. Teknologi informasi dan komunikasi yang berkembang semakin pesat selain berdampak pada kegiatan manusia. Selain itu juga berdampak pada perilaku dan peta persaingan bagaimana cara mengelola perusahaanyang akhirnya berpengaruh pada perkembangan bisnis dunia. RSUD Kota Bandung belum menggunakan sistem informasi dengan teknologi terkini yang dapat menunjang kemudahan akses.. Dilihat dari pemanfaatan sistem informasi yang belum optimal dalam mendukung bisnis rumah sakit, ini merupakan suatu kekurangan dari efisiensi organisasi.Dengan demikian diperlukan sebuah solusi untuk memperbaiki pelayanan system informasi saat ini dengan cara mengajukan beberapa usulan aplikasi Metode yang digunakan untuk menggambarkan kondisi organisasi RSUD Bandung saat ini adalah Enterprise Architecture Planning. Metode ini digunakan untuk menggambarkan dan mengembangkan enterprise architecture untuk mencapai strategi bisnis perusahaan. Penelitian ini menghasilkan beberapa usulan aplikasi yang dapat memperbaiki pelayanan sistem informasi saat ini.
Performing image confusion and diffusion using two dimensional triangle functional chaotic maps Prasetyo, Heri; Rosiyadi, Didi; Horng, Shi Jinn; Setiawan, Iwan; Basuki, Akbari Indra
International Journal of Advances in Intelligent Informatics Vol 7, No 2 (2021): July 2021 (Issue in Progess)
Publisher : Universitas Ahmad Dahlan

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Abstract

Currently, with a malicious attacker against the authorization of an image it is necessary to have a method to secure the content of the image. Therefore this paper presents a new technique for performing image confusion and diffusion using Two Dimensional Triangle Fractional Combination Discrete Chaotic Map (2D-TFCDM). The image confusion requires a set of 2D-TFCDM chaotic random numbers to relocate the pixel locations of plain or secret images. At the same time, image diffusion utilizes the chaotic numbers to modify the pixel values of confused image. The proposed method performs well in terms of visual investigation and objective quality assessment on the confused and diffused images. In addition, it offers a promising result for the grayscale and color image with simple computation, which the experiment results demonstrate that the proposed method outperforms other existing methods under several types of visual observation, correlation coefficients, entropy, UACI, NPCR.
E-Learning For Kids Education About Corona Virus Pada Sdn 01 Duren Tiga Juninisvianty, Tri; Saputri, Daniati Uki Eka; Khasanah, Nurul; Riyanto, Eko Arif; Dwi, F Lia; Seimahuira, Syarah; Salim, Agus; Rosiyadi, Didi
Indonesian Journal on Software Engineering (IJSE) Vol 6, No 2 (2020): IJSE 2020
Publisher : Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/ijse.v6i2.9073

Abstract

Abstract: E-Learning For Kids Education about Corona Virus (EduCovid-19) is an e-learning website for elementary school students to be able to bridge teachers, parents and students in providing correct information about the spread, danger, and handling of corona virus outbreaks. In addition, this website is equipped with Thematic material that students get at school. By implementing a primary school curriculum for thematic lessons, it is hoped that it can adjust the learning system that is available in schools. The design of EduCovid-19 contains material in the form of education and exercises about Covid-19 and thematic lessons where in one of these materials there will be questions and answers as one of the interactive assessment methods for teachers. The method used in the design of this system is RAD and the research methods used in data collection are interviews, observation and case studies. By applying the learning system using EduCovid-19, it will be able to increase children's interest in the learning process that is currently underway, namely school from home and provide students with knowledge about the dangers and ways to overcome Covid-19.Keywords: Elearning, School, Covid-19, EduCovid-19Abstrak: E-Learning For Kids Education about Corona Virus (EduCovid-19) merupakan website elearning bagi pelajar sekolah dasar untuk dapat menjembatani guru, orang tua dan siswa dalam memberikan informasi yang benar seputar penyebaran, bahaya, dan penangan terkait wabah virus corona. Selain itu, di website ini dilengkapi dengan materi Tematik yang siswa dapatkan di sekolah. Dengan menerapkan kurikulum sekolah dasar pelajaran tematik, diharapkan dapat menyesuaikan sistem pembelajaran yang terdapat di sekolah. Perancangan EduCovid-19 ini berisi materi-materi berupa edukasi serta latihan soal seputar Covid-19 dan pelajaran tematik dimana dalam salah satu materi tersebut akan ada tanya jawab sebagai salah satu metode penilaian interaktif bagi para guru. Dalam perancangan sistem ini menggunakan metode RAD dan metode penelitian yang digunakan dalam pengumpulan data yaitu wawancara, observasi dan studi kasus. Dengan penerapan sistem pembelajaran menggunakan EduCovid-19 nantinya mampu meningkatkan ketertarikan anak dalam proses pembelajaran yang saat ini sedang berlangsung yaitu school from home dan memberikan pengetahuan kepada siswa mengenai bahaya dan cara menghindari serta mengatasi Covid-19.Kata kunci: Elearning, Sekolah, Covid-19, EduCovid-19
Optimized Hybrid DCT-SVD Computation over Extremely Large Images Setiawan, Iwan; Basuki, Akbari Indra; Rosiyadi, Didi
Jurnal Teknik Elektro Vol 13, No 2 (2021): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v13i2.31879

Abstract

High performance computing (HPC) is required for image processing especially for picture element (pixel) with huge size. To avoid dependence to HPC equipment which is very expensive to be provided, the soft approach has been performed in this work. Actually, both hard and soft methods offer similar goal which are to reach time computation as short as possible. The discrete cosine transformation (DCT) and singular values decomposition (SVD) are conventionally performed to original image by consider it as a single matrix. This will result in computational burden for images with huge pixel. To overcome this problem, the second order matrix has been performed as block matrix to be applied on the original image which delivers the DCT-SVD hybrid formula. Hybrid here means the only required parameter shown in formula is intensity of the original pixel as the DCT and SVD formula has been merged in derivation. Result shows that when using Lena as original image, time computation of the singular values using the hybrid formula is almost two seconds faster than the conventional. Instead of pushing hard to provide the equipment, it is possible to overcome computational problem due to the size simply by using the proposed formula.
Komparasi Algortima C4.5, Naïve Bayes dan k-Nearest Neighbor Sebagai Sistem Pendukung Keputusan Menaikkan Jumlah Peserta Didik Harianto Harianto; Didi Rosiyadi
Jurnal Informatika Vol 7, No 1 (2020): April 2020
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (404.632 KB) | DOI: 10.31294/ji.v7i1.7250

Abstract

Persaingan dalam menarik minat orang tua siswa untuk menyekolahkan anak mereka ke sekolah swasta memang sangat tinggi. Sekolah swasta harus bekerja keras dalam hal mendapatkan siswa yang akan melanjutkan pendidikannya ke tingkat selanjutnya. Sekolah hendaknya harus memiliki nilai tambah yang lebih di mata  orang tua siswa. Dari ketiga algoritma yang digunakan, terdapat nilai accuracy tertinggi sebesar 86,50% dihasilkan dari algoritma Naïve Bayes. Dalam artian, tingkat prediksi untuk sekolah SMP Cenderawasih mendapatkan jumlah siswa yang didapatkan dari kuesioner sangat memungkinkan orang tua mendaftarkan anaknya kesekolah ini. Dapat dilihat dari beberapa faktor yang dijadikan sebagai atribut dalam daftar kuesioner. Dengan algoritma Naïve Bayes, atribut yang paling tinggi sebagai faktor penentu orang tua mendaftarkan anaknya adalah atribut umur, yaitu yang berumur 31 sampai 50 tahun, kemudian atribut faktor karena tidak masuk negeri, atribut transport menggunakan motor, kemudian atribut jarak, serta atribut informasi yang didapat dari teman atau saudara. Dari faktor tersebut terlihat apa saja yang harus dilakukan untuk menaikkan jumlah siswa
Analisis dan Perancangan Sistem Komputerisasi Pengumpulan dan Penyerahan Zakat, Infaq dan Shodaqoh pada Bazis Kabupaten Tasikmalaya Didi Rosiyadi
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2005
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Di Indonesia ZIS dikelola oleh suatu badan resmi yang bernama BAZIS Pengelolaan ZIS pada mulanyadilakukan secara manual mengingat jumlah muzaki dan mustahik yang ada saat itu relatif sebanding dengankemampuan pengelola BAZIS. Pada saat ini sistem manual hanya dapat dilakukan untuk tingkat RT/RWsedangkan pengelolaan selanjutnya memerlukan sistem komputerisasi pengumpulan dan penyerahan ZISkarena jumlah mustahik dan muzaki semakin bertambah dan kebutuhan penanganan mutasi pengelolaan ZIS ditingkat DKM dan tingkat di atasnya memerlukan ketelitian dan kecermatan dalam pengelolaan ZIS yangakhirnya menghasilkan laporan zis secara cepat, tepat dan akurat. Metodologi penelitian yang digunakan dalampenelitian ini adalah observasi, wawancara, studi literatur dan metode siklus hidup klasik untuk. Hasil akhirpenelitian adalah membuat suatu rancangan program pengumpulan dan penyerahan ZIS secara terpadu mulaidari tingkat DKM sampai dengan tingkat Kabupaten. Dengan sistem ini diharapkan pengawasan danpengendalian pengelolaan ZIS dapat lebih baik serta mudah diakses oleh semua pihak yang berkepentingansehingga penyimpangan-penyimpangan yang terjadi dapat dikurangi atau ditanggulangi. Sebagai tahapselanjutnya adalah dilakukan implementasi dengan langkah-langkah menentukan bahasa pemrograman yangdigunakan, tes dan modifikasi, dan evaluasi sistem yang telah dibuat.Kata kunci: muzaki, mustahiq, zis.
Measuring Structured Design Quality Didi Rosiyadi; Nana Suryana
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2006
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Structured Design is the development of a blueprint of a computer system solution to a problem that has the same components and interrelationships among the components as the original problem. Structured Design offers a set of strategies for developing a design solution from a well-defined statement of a problem and offers a set of objective and empirically justified criteria for evaluating the quality of a given design solution with respect to the problem to be solved. Structured design is not the structure chart any more than good sculpture is a chisel. The chisel is a tool for chipping that must be used with dexterity to achieve a good result. Similarly, a structure chart is simply a tool for showing a picture of the modules in a system and their relationships to one another. One of the fundamental principles of structured design is that a large system should be partitioned into manageable modules. However, it is vital that this partitioning should be carried out in such a way that the modules are as independent as possible, this is the criterion of coupling.Keywords: Design, Structured Design, Coupling
E-Government Dimension Didi Rosiyadi; Nana Suryana; Ade Cahyana; Nuryani Nuryani
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2007
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Makalah ini mengemukakan E-Government Dimension yang merupakan salah satu hasil TahapanPengumpulan Data, dimana tahapan ini adalah bagian dari penelitian kompetitif di Lembaga Ilmu PengetahuanIndonesia 2007 yang sekarang sedang dilakukan. Data E-Government Dimension ini didapatkan dari berbagaisumber yang meliputi E-Government beberapa Negara di dunia, E-Government yang dibangun oleh beberapapenyedia aplikasi E-Government. E-Government Dimension terdiri dari tiga dimensi yaitu DemocraticDimension, Service Dimension dan Administrative Dimension. Democratic Dimension difokuskan pada prosesprosespolitik dan interaksi diantara konstituante dengan pemerintah ataupun sebaliknya, Service Dimensionmeliputi seluruh jenis layanan secara elektronik dan Administrative Dimension terdiri dari seluruh jenismanajemen dan lingkungan internal organisasi serta kegiatan operasional yang dilakukan sehari-hari.Selanjutnya E-Government Dimension ini dapat dijadikan panduan awal dalam pembangunan kerangka kerjaE-Government di Indonesia (E-Government Framework).Kata kunci: E-Government, E-Government Dimension, Democratic, Administrative, Service
Co-Authors -, Cucu Abdul Mahatir Najar Abdullah, Ifnu Abdul Aziz Ade Cahyana Adiwijaya Adnyana, I Ketut Widhi Agus Indra Jaya Agus Salim Akbari Basuki Akbari Indra Basuki Alvi Alvi Aridarma, Dedi Bambang Joko Triwibowo Basuki, Akbari Indra Bobby Suryo Prakoso Bobby Suryo Prakoso Cahya, El Rangga Un Chandra Nugraha Chandra Nugraha, Chandra Cucu Cucu Daniati Uki Eka Saputri Dedi Ariadarma Dedi Aridarma Deni Rusdiaman Dwi, F Lia Dwiza Riana Eko Arif Riyanto, Eko Arif Eko Saputro Endang Sri P Fajar Pramono Fajar Priyono Fariszal Nova Arviantino Fauzi, Fariz Furqon Hensan Muttaqien Hadi Susanto Harianto Harianto Heru Sukma Utama Heru Sukma Utama Heru Susanto Horng, Shi Jinn Husain, Syepry Maulana Ifnu Abdul Aziz abdullah Imam Amirulloh Ipin Sugiyarto Iqbal Dzulfiqar I Irawan, Rama Irwansyah Saputra Iwan Setiawan Iwan Setiawan Jamil, Muh. Juninisvianty, Tri Kurniawan W. Handito Kurniawan, Rohim Kusnadi - Kusnadi Muh. Jamil Muhammad Syahrani Mulyanto, Yudi Nana Suryana Nana Suryana Nana Suryana nanang ruhyana Nila Hardi Nuryani Nuryani Prakoso, Bobby Suryo Prasetyo, Heri Putra, Yeffry Handoko Qhomar, Mohammad Arifin Nurul Qurrota Ayun Hariyanto Putra RACHMAT HIDAYAT Rama Irawan Riski Annisa Salim, Taufik Ibnu Salsabila, Unik Hanifah Saputra, Surya Fajar Seimahuira, Syarah Sidiq, Muhammad Fajar Sriyadi Sriyadi Sugiyarto, Ipin Surti Kanti Surya Fajar Saputra Sutiyono Sutiyono Suwanda Aditya Aaputra Taufik Iqbal Ramdhani Tiska Pattiasina Utama, Heru Sukma Windu Gata Yeffry Handoko Putra Yusnan Hasani Siregar Yusuf Arif Setiawan Zulfikar Fauzi