Article Per Year (5 Year)
p-Index From 2021 - 2026
0.659
P-Index
This Author published in this journals
All Journal Telematika : Jurnal Informatika dan Teknologi Informasi Techno LPPM Seminar Nasional Informatika (SEMNASIF) Register: Jurnal Ilmiah Teknologi Sistem Informasi Proceeding of the Electrical Engineering Computer Science and Informatics Innovation in Research of Informatics (INNOVATICS)
Hidayatulah Himawan
Informatika, Universitas Pembangunan Nasional Veteran Yogyakarta
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

Published : 24 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search

 1   2   3 
REPRESENTASI BUDAYA YOGYAKARTA PADA DESAIN KAOS MENGGUNAKAN TEKNOLOGI AUGMENTED REALITY BERBASIS ANDROID Oliver Samuel Simanjuntak; Hidayatulah Himawan; Reza Raditya Setyo Putra
Seminar Nasional Informatika (SEMNASIF) Vol 1, No 1 (2017): “e-Defense : Menjaga keamanan data menghadapi cyber warfare untuk memperkokoh ke
Publisher : Jurusan Teknik Informatika

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

Abstract

Teknologi augmented reality atau sering juga disebut AR, merupakan teknologi informasi komunikasi (TIK) yang mampu menambah dan melengkapi secara langsung/tidak langsung berbagai media (teks, gambar, suara, animasi dan video) kedalam dunia nyata. Dengan penambahan berbagai media, teknologi AR memampukan penyampaian informasi dan komunikasi yang tertampil pada benda maya dengan persepsi dan interaksi pengguna sehingga dapat hadir dalam dunia nyata. Informasi yang ditampilkan oleh teknologi AR membantu pengguna melaksanakan kegiatan-kegiatan dalam dunia nyata. Hal ini yang membuat teknologi AR banyak dimanfaatkan sebagai media promosi. Sebagai media informasi, teknologi AR mampu merepresentasikan kebudayaan daerah dalam rangka promosi pariwisata, salah satu penerapannya pada desain kaos. Konsep dari representasi budaya Yogyakarta pada desain kaos adalah pengenalan pola marker dan pendeteksian marker dengan tingkat kerumitan yang disebabkan oleh ketidakstabilan dari permukaan kaos. Dengan representasi budaya Yogyakarta pada desain kaos berbasis android, teknologi AR membantu menambah inovasi ilmu pengetahuan tentang marker based  augmented reality khususnya pada media permukaan kaos yang tidak stabil serta alternatif pengenalan budaya Yogyakarta dengan lebih menarik
Hybrid Cryptosystem Using RC5 and SHA-3 with LSB Steganography for Image Protection Susanti, Adisti Dwi; Hadiana, Asep Id; Umbara, Fajri Rakhmat; Himawan, Hidayatulah
Innovation in Research of Informatics (Innovatics) Vol 6, No 2 (2024): September 2024
Publisher : Department of Informatics, Siliwangi University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/innovatics.v6i2.11515

Abstract

The rapid development of internet technology has been accompanied by a significant increase in information security threats. Ensuring the security of confidential information transmission is crucial. Cryptography and steganography are among the most efficient techniques for safeguarding data. Both fields focus on information concealment. This paper proposes a hybrid approach to protect confidential multimedia data, specifically image media, by using LSB steganography techniques in combination with the RC5 encryption algorithm and the SHA3 hashing algorithm to provide dual-layer protection for information. In the proposed method, image data is first encrypted using the RC5 encryption algorithm with a specified key. Subsequently, a hashing function using SHA3 is applied for dual protection, ensuring data authenticity and integrity. Finally, steganography is performed using the LSB technique to embed the hashed information into the image media. This study aims to enhance the security of information in digital image media, providing a reliable solution to address security challenges. The results indicate that data confidentiality was successfully achieved, with an average PSNR of 52.509 dB and an MSE of 0.3829. Tests were conducted using a dataset of images with various dimensions.
PENGEMBANGAN SISTEM OFFICE AUTOMATION (SOA) MENGGUNAKAN E-MAILING SYSTEM ONLINE Florestiyanto, Mangaras Yanu; Himawan, Hidayatulah; Kaswidjanti, Wilis; Yuwono, Bambang
Journal TECHNO Vol. 1 No. 1 (2015)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v1i1.1508

Abstract

Sistem Office Automation (OA) dikembangkan oleh banyak institusi untuk menunjangpeningkatan kinerja sebuah institusi atau organisasi. Sistem ini bertujuan untuk mengalihkanfungsi sumber daya manual perkantoran yang banyak menggunakan tenaga manusia menujufungsi otomasi menggunakan peralatan mekanis e-mailing system secara online. Penelitian inibertujuan untuk mengembangkan e-mailing system/sistem informasi persuratan elektronisdengan melakukan pemantauan persuratan terutama pada permasalahan alur perjalanan suratdan disposisi serta tindak lanjutnya. Penelitian ini menggunakan metode Difine SystemSpecification yang dapat mengatasi kelemahan pada proses alur perjalanan surat dan disposisiserta tindak lanjutnya. Hasil penelitian ini mampu memproses alur perjalanan surat maupuntindak lanjut disposisi surat dengan pemantauan yang lebih baik.System Office Automation (OA) developed by many institutions in support of improving theperformance of an institution or organization. This system aims to divert resources function thatmany manual office using manpower towards automation functions using mechanical equipmente-mailing system online. This research aims to develop e-mailing system / electroniccorrespondence with the information system monitoring the flow of correspondence, especially onissues trips letters and dispositions as well as follow-ups. This study uses difine SystemSpecification which can address the weaknesses in the process flow and disposition journey letterand follow-up. Results of this study were able to process the flow of letters and follow-up tripdisposition letter with better monitoring.Keywords: e-Mailing System, Sistem Office Automation, disposition, Electronic letters
Effect of information gain on document classification using k-nearest neighbor Perwira, Rifki Indra; Yuwono, Bambang; Siswoyo, Risya Ines Putri; Liantoni, Febri; Himawan, Hidayatulah
Register: Jurnal Ilmiah Teknologi Sistem Informasi Vol 8 No 1 (2022): January
Publisher : Information Systems - Universitas Pesantren Tinggi Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/register.v8i1.2397

Abstract

State universities have a library as a facility to support students’ education and science, which contains various books, journals, and final assignments. An intelligent system for classifying documents is needed to ease library visitors in higher education as a form of service to students. The documents that are in the library are generally the result of research. Various complaints related to the imbalance of data texts and categories based on irrelevant document titles and words that have the ambiguity of meaning when searching for documents are the main reasons for the need for a classification system. This research uses k-Nearest Neighbor (k-NN) to categorize documents based on study interests with information gain features selection to handle unbalanced data and cosine similarity to measure the distance between test and training data. Based on the results of tests conducted with 276 training data, the highest results using the information gain selection feature using 80% training data and 20% test data produce an accuracy of 87.5% with a parameter value of k=5. The highest accuracy results of 92.9% are achieved without information gain feature selection, with the proportion of training data of 90% and 10% test data and parameters k=5, 7, and 9. This paper concludes that without information gain feature selection, the system has better accuracy than using the feature selection because every word in the document title is considered to have an essential role in forming the classification.
Co-Authors Abdur Rahman, Hafidz Fajar Adi Yusuf Agus Sasmito Aribowo Agus Triawan Anak Agung Istri Sri Wiadnyani Annesa Maya Sabarina Awang Hendrianto Pratomo Bambang Yuwono Bambang Yuwono Bambang Yuwono Debby Gybson Putri Dessyanto Boedi Prasetyo Eko Yuli Prasetyo Febri Liantoni, Febri Hadiana, Asep Id Hafidz Fajar Abdur Rahman Hafidz Fajar Abdur Rahman, Hafidz Fajar Abdur Heru Cahya Rustamaji Mangaras Yanu F Muhammad Afif Karomi Muhammad Ali Husaini Nur Heri Cahyana Oliver Samuel Simanjuntak Reza Raditya Setyo Putra Rifki Indra Perwira Siswoyo, Risya Ines Putri Susanti, Adisti Dwi Umbara, Fajri Rakhmat Wilis Kaswidjanti Wilis Kaswidjanti Wilis Kaswidjanti