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All Journal International Journal of Engineering Science and Technology Development (IJEST) AdMathEdu : Jurnal Ilmiah Pendidikan Matematika, Ilmu Matematika dan Matematika Terapan International Conference on Engineering and Technology Development (ICETD) Explore: Jurnal Sistem Informasi dan Telematika (Telekomunikasi, Multimedia dan Informatika) Science and Technology Indonesia Jurnal Komputasi Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Indonesian Journal of Artificial Intelligence and Data Mining Prosiding Seminar Nasional Teknoka INSIST (International Series on Interdisciplinary Research) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Eurekamatika Jurnal Siger Matematika Jurnal Komputasi
. Wamiliana
Universitas Lampung
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Other

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IMPLEMENTASI TEKNIK STEGANOGRAFI MENGGUNAKAN METODE ADAPTIVE MINIMUM ERROR LEAST SIGNIFICANT BIT REPLACEMENT (AMELSBR) Astria Hijriani; Wamiliana Wamiliana; Pandya Panditatwa
Jurnal Komputasi Vol. 2 No. 2 (2014)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v2i2.1123

Abstract

Security is an important aspect in digital data transmission, and steganography is one way for hiding a secret message in such a way so that others are not aware of the existence of something in the message. In this research, we built a digital steganography system using web-based with Adaptive Minimum - Error Least Significant Bit Replacement (AMELSBR) method. The media to hide the message is on the form of .jpg, the output is on the form of .png, and the message is on the form of .txt. The procedures for applying AMELSBR method are Capacity Evaluation, Minimum - Error Replacement and Error Diffusion. The result shows that the AMELSBR method is able to manage for hiding and restoring files without causing excessive distortion (noise) in stego image. The AMELSBR method has a possibility of returning most files to image manipulation such as the change of image Brightness and Contrast with the black color dominant (rgb(0,0,0)), white color dominant (rgb(255,255,255)).
PENERAPAN ALGORITMA SEQUENTIAL SEARCH DALAM PROSES PENCARIAN INFORMASI PADA SISTEM PEMBELAJARAN ORGAN JANTUNG MANUSIA Wamiliana Wamiliana; Ade Hardiyanti; Wisnu Wardhana
Jurnal Komputasi Vol. 2 No. 2 (2014)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v2i2.1199

Abstract

Without no doubt, technology supports the human life and can be applied in many aspects, for example ineducation development. Learning process using computer as an aided tools are commonly used. The Applicationof Sequential Search Algorithm for The Searching Process of Information in The Learning System of Human’sHeart is an example of the application of computer in education that can be one of solution to help the learningprocess for teachers, lecturers, or students. In this research we use the sequential search algorithm searchingprocess in learning system of human’s heart which is one of the search methods to facilitate text searches of theinformation that required by the user. This system gives information about the material that is related to the heartorgan, i.e, heart anatomy, heart physiology, and heart pathology. The testing systems that used in this applicationis Black Box method. Black Box Testing is focuses on the functional requirements of the software. Black BoxTesting is used for testing the system in order to know if the system work well.Keyword: Black Box Testing; Heart; Sequential Search; Technology.
IMPLEMENTASI SEQUENTIAL ALGORITHM UNTUK PENCARIAN KATA DALAM APLIKASI PEMBELAJARAN JAPANESE GRAMMAR Wamiliana Wamiliana; Bainah Sari Dewi; Dyan Shandy Utama
Jurnal Komputasi Vol. 3 No. 1 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i1.973

Abstract

MENGIMPLEMENTASIKAN ALGORITMA PENCARIAN, SEQUENTIAL ALGORITHM, UNTUK MEMBANTU PENGGUNA APLIKASI PEMBELAJARAN JAPANESE GRAMMAR MENEMUKAN MATERI YANG DIINGINKAN DENGAN MELAKUKAN PENCARIAN KATA PADA SEARCH BOX.PENGGUNA AKAN LANGSUNG DIARAHKAN MENUJU KATA YANG DICARI.
Penelusuran Bug Program Simulasi Pencetakan Transkrip SIAKAD Unila dengan Metode Whitebox dan Solusi Menggunakan Variabel Memori Dwi Sakethi; Wamiliana Wamiliana; Wisnu Wardhana; Alifah Zahroh
Jurnal Komputasi Vol. 3 No. 1 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i1.978

Abstract

AbstractIn tracking of SIAKAD transcript, there was found a bug, that is the arrangement of the lesson position at the tenth till fifteenth semester located between first and second semester. Process tracking bug did in simulation program. In this research, carried out a development of the original program Siakad as simulation program that will be analyzed, to find out where is bug in the system. Development this program using PHP and MySQL database software. Tracking bug using whitebox testing method, it can be determined whether there is a bug in the procedural structure of the program or just on the operational function of the system itself. Bugs can be repaired by adding some changes on source code of the program. The changes are determination of new variables as memory variables and application of Bubble sort method on sorting proccess. The result shows bugs on the program is fixed. Keywords: Bubble sort, Bug, MySQL, PHP, Siakad, Whitebox
Pembangunan Tools Pembelajaran Pemrograman Java Melalui Live CD / Live USB Irwan Adi Pribadi; Wamiliana Wamiliana; Ervan Heppyda; Wisnu Wardhana
Jurnal Komputasi Vol. 3 No. 1 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i1.1034

Abstract

Linux is an open source operating system. Everyone can change and develop the Linux operating system as needed. In this research we use Linux operating system to generate a new operating system that supports learning Java programming. The resulting operating system is runs via Live CD / Live USB. The operating system has been successfully created and can be used as learning tools for Java programming.
PENGEMBANGAN APLIKASI ENCODING DAN DECODING TREE MENGGUNAKAN KODE DANDELION Wamiliana Wamiliana; Astria Hijriani; Novi Hardiansyah
Jurnal Komputasi Vol. 3 No. 2 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1113

Abstract

In this research, we develop The Application of Encoding and Decoding Tree Using The Dandelion Code.  It aims to obtain Dandelion code of a tree using encoding and decoding. The encoding generates code from a tree, and decoding processes a code back into a tree. This application is developed to produce the best tree representation. Additionally, in this research we give an example of problem that can use Dandelion Code for solving the lowest cost for electricity installation.Keywords : Application, Encoding, Dandelion Code, Decoding, Tree, Tree Representation.
IMPLEMENTASI STEGANOGRAFI UNTUK MENYISIPKAN PESAN TEKS PADA MEDIA GAMBAR DENGAN METODE END OF FILE Wamiliana Wamiliana; Astria Hijriani; Azharico Darusman
Jurnal Komputasi Vol. 3 No. 2 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1127

Abstract

Security and confidentiality of data transmission are two important aspects in the era of openness to data access and information. One way to secure the data transmission is using steganography. In this research, the method used is End Of File (EOF) and used image as the medium. The message is hidden by inserting it in the end of the line image file. The media for hiding the message is in the form of .jpg and the output is in the form of .png. Inputting message is done manually. Testing have  been conducted on 5 types of images with different resolutions with a number of different messages characters which are 10, 100, and 1000 characters. The results show that the method of End Of File (EOF) successfully used to hide message in the media image and to take back the message that has been inserted. The image size and the number of characters used affects the processing time for embedding and extracting. Cropping, contrasting, and brightness on stego image are conducted to analyze the resilience of the message inserted. The results show that the stego image manipulations are sensitive or resistant to the manipulation that makes the message becomes corrupted and are not recommended in manipulating stego image.Keywords : embed, End Of File (EOF), extract, image, steganography, stego Image
Penyederhanaan Tata Bahasa Bebas Konteks Dalam Bentuk Normal Chomsky Menggunakan PHP Rico Andrian; Wamiliana Wamiliana; Ismail Indra Pratama
Jurnal Komputasi Vol. 3 No. 2 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1129

Abstract

In this research we develop an application to simplify context-free grammar into a Chomsky normal form. This software was made to complete the process of simplification of the context-free grammar (CFG) so that user can identify the stages of a process of simplification, easy to understand the simplification at any stages as well as speed up the process. This software is created using the PHP programming language and use context-free grammar (CFG) as the input. The process order is carried out starting from removing epsilon, unit, and useless production so that the result is in Chomsky Normal Form. Black Box testing results with the method of partitioning software equivalen suggests that simplification of software context-free grammar into a Chomsky normal form using PHP was successful and suitable with the user needs.
APLIKASI PENGUBAH BENTUK NORMAL CHOMSKY MENJADI BENTUK NORMAL GREIBACH DENGAN METODE SUBSTITUSI Rico Andrian; Wamiliana .; Andikha Yunar Cornelius Dabukke
Jurnal Komputasi Vol. 3 No. 2 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1132

Abstract

The research was conducted with making an application to change Chomsky Normal Form (CNF) to Greibach Normal Form (GNF) with substitution method. One way of representing Context Free Grammar (CFG) is using Greibach Normal Form (GNF). The development of the application starts by making algorithm with prototype method to change Chomksy Normal Form (CNF) to Greibach Normal Form (GNF). This application is used to change Chomsky Normal Form to Greibach Normal Form and the results show that the application can change Chomsky Normal Form to Greibach Normal Form smoothly.The input for the application must be on Chomksy Normal Form (CNF). Keywords: Chomsky Normal Form, Context Free Grammar, Greibach Normal Form, Prototype Method 
APLIKASI PENYEDERHANAAN CONTEXT FREE GRAMMAR Rico Andrian; Wamiliana .; Andriyan Hutomo
Jurnal Komputasi Vol. 3 No. 2 (2015)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1133

Abstract

This research is done by making an application to simplify Context Free Grammar (CFG). The process of making the application starts from designing the algorithm using eXtreme Programming method as system development methods until get the application to simplify Context Free Grammar (CFG). The testing method to test the application is Black Box Testing. The result shows that the application can simplify Context Free Grammar smoothly, and how to simplify Context Free Grammar step by step. Context Free Grammar (CFG) simplification has  three stages, eliminating espsilon production, eliminating unit production and eliminating useless production, those three stages must be done sequentially. Keywords: Chomsky Normal Form, Context Free Grammar, Greibach Normal Form, Prototype Method 
Co-Authors . Amanto Aang Nuryaman Ade Hardiyanti Ady Candra Afdi Patria Ahmad Faisol Ahya Shofa Ananda Akmal Junaidi Akmal Junaidi Alifah Zahroh Amanto Amanto Amanto Andikha Yunar Cornelius Dabukke Andrian, Rico Andriyan Hutomo Astri Reformasari Astria Hijriani Astria Hijriani Astria Hijriani Attiya Yuliana Azharico Darusman Bainah Sari Dewi Cut Shavitri Nursanti Fauzi Dako Adi Ahmadi Depriyanto Depriyanto Desiana Putri Dian Kurniasari Dian Kurniasari Dian Kurniasari Didik Kurniawan Didik Kurniawan Dina Eka Nurvazly Dolly Yudhistira Dwi Sakethi Dwi Yatmoko Siambudi Dyan Shandy Utama Edwin Russel Edwin Russel Eka Fitri Jayanti Ervan Heppyda Fadila Cahya Puri Fadila Cahya Puri Fahmi Kharismaldie Faiz AM Elfaki Fajar Sidik Fatkur Rokhman Fauzi, Cut Shavitri Nursanti Febi Eka Febriansyah Febi Eka Febriansyah Fitriani Grita Tumpi Nagari Irwan Adi Pribadi Ismail Indra Pratama Ismawati Ismawati Izzatuz Zakiyah Mukhtarisa Jamal I. Daoud Jani Suparman Jevri Setia Nugraha Karina Sylfia Dewi La Zakaria La Zakaria Louis Caccetta Marisa Ayu Rahmadhani Mas Dafri Maulana Mira Mustika Misgiyati Misgiyati Muslim Ansori Muslim Ansori Muslim Ansori Mustofa Usman Mustofa Usman Mustofa Usman Mustofa Usman Nairobi Notiragayu Notiragayu Notiragayu Novi Hardiansyah Ossy Dwi Endah Wulansari Pandya Panditatwa pita utari ningtyas Poetri Hana Nurhandayani Pradana Marlando Reni Permata Sari Reni Permata Sari Riska Aulia Putri Rizky Indah Melly Rizqi Chandra Aditya Roro Ayu Martinez Shara Siti Zahroh Silvi Fitriani Siti Laelatul Chasanah Sulistian Oskavina Thomas Juliansyah Tryo Romadhoni Pujakusuma Warsono Warsono Wisnu Wardhana Wisnu Wardhana Wiwin Susanty Yudi Antoni