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Prajanto Wahyu Adi
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Ruang E305 Ged. E Lt.3 Jurusan Ilmu Komputer / Informatika Fakultas Sains dan Matematika Universitas Diponegoro Jl. Prof. Soedarto, S.H Tembalang, Semarang, 50275 Telp. 024-7474754 ext. 5001
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Jurnal Masyarakat Informatika
Published by Universitas Diponegoro
ISSN : 20864930     EISSN : 27770648     DOI : https://doi.org/10.14710/jmasif.crossmark
Core Subject : Science,
Computer Science & IT
JURNAL MASYARAKAT INFORMATIKA - JMASIF is a Journal published by the Department of Informatics, Universitas Diponegoro invites lecturers, researchers, students (Bachelor, Master, and Doctoral) as well as practitioners in the field of computer science and informatics to contribute to JMASIF in the form of research articles and review articles. We accept articles in English and Bahasa. Detailed information about the submission process can be read HERE. Authors can also download Templates at HERE. JMASIF Topics include, but are not limited to Applied Computer Science, Artificial Intelligence, Text and Natural Language Processing, Image Processing and Pattern Recognition, Computer Vision, Data Mining, Cryptography, Cybersecurity, Computer Network, Computational Theory and Mathematics, Game Technology, Human and Computer Interaction or UI/UX, Information System, Software Engineering.
Arjuna Subject : Ilmu Komputer (semua kategori) - Aplikasi Ilmu Komputer
Articles 6 Documents
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Search results for , issue "Vol 1, No 1 (2010): Jurnal Masyarakat Informatika" : 6 Documents clear
EFEK PARAMETER QUALITY PADA KOMPRESI JPEG TERHADAP KUALITAS CITRA DIGITAL DAN RASIO KOMPRESI Wibawa, helmie Arif; Sugiharto, Aris
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.78 KB)

Abstract

In general, digital image have large amount of file size so that inefficient if wanted to save or transmit it to another place. We require a method to reduce the file. The method which used many is  compression. One of them is JPEG compression. At this compression, there is a parameter used to know the quality of compression called quality parameter. So that necessary to check quality parameter effect on JPEG compression to digital images and compression ratio.   Keywords : compression, JPEG, quality
ALGORITMA BACK PROPAGATION NEURAL NETWORK UNTUK PENGENALAN POLA KARAKTER HURUF JAWA Nurmila, Nazla; Sugiharto, Aris; Sarwoko, Eko Adi
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.588 KB) | DOI: 10.14710/jmasif.1.1.74

Abstract

Back Propagation Neural Network (BPNN) is a type of algorithm in Neural Network that can be use for Javanese alphabets character recognition. Matlab 7.1 has been used as a software to support the program. The main purpose of this research is order to find out BPNN’s training characteristic from each samples. On the other hand, this research also gives BPNN’s accurancy value in Javanese alphabets character recognition. The result of research shows that each part of the samples having different BPNN’s characteristic based on the best training.   Keywords : NN, BPNN
PENYELESAIAN MASALAH JOB SHOP MENGGUNAKAN ALGORITMA GENETIKA Adhy, Satriyo; Kushartantya, Kushartantya
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (443.053 KB) | DOI: 10.14710/jmasif.1.1.75

Abstract

Job Shop Scheduling Problem (JSP) is a problem of work scheduling that can be describe by one or several job that have to be done by one or several source, each job contain of several operation that has to be done without interuption in several time and spesific source. Many kind algorithm can be use to solve JSP, one of them is genetic algorithm. Genetic Algorithm use in this final project to solve JSP. Genetic algorithm step begin with individual representation, initial population, reproduction and selection process, crossover gen, mutation gen and evaluation. Solving JSP with genetic algorithm can give a schedule of job in source with optimal time process, then Delphi 6 software use to make the solving program.   Key Word : Job Shop Scheduling Problem (JSP), Genetic Algorithm, Delphi 6
DETEKSI ERROR PADA REGESTER GESER TINGKAT n-k Suhartono, Suhartono
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.164 KB)

Abstract

A transmitted code vector may be perturbed by noise, then the vector received may be a corrupted version of the transmitted code vector. A codeword with polynomial representation  U(X) is transmitted and Z(X)  is the corrupted version of V(X), then it must be a multiple of the generator polynomial g(X), that is, U(X) = m(X) g(X) and Z(X) can be written  Z(X)= U(X) + e(X), where e(X) is the error pattern polynomial. This is accomplished by calculating the syndrome of received polynomial. The syndrome S(X) is equal to the remainder resulting from dividing Z(X) by g(X), that is, Z(X) = q(X)g(X) + S(X). And the other hand, S(X)  is exactly the same  polynomial obtained as remainder of e(X) modulo g(X). Thus the syndrome of the received polynomial Z(X) contains the information needed for correction of error pattern. When the syndrome is  an all-zeros vector, the received vector to be a valid code vector. When the syndrome is a nonzero vector, the  received vector is pertubed code vector and errors have been detected. The procedure for error detection is as follows. The received vector is first stored in a buffer. It is subjected to devide by g(X) operation, the division can be carried out very efficiently by a shift register circuit. The remainder in the shift register is then compared with all the possible syndromes. This set of syndromes corresponds to the set of correctable error patterns. If a syndromes match is found, the error is subtracted out from the received vector. The correct version of  the received vector is then pass on the next stage of the received unit for further processing.     Key words: error detection, transmitted, received  code vector, Syndrome, pertubed
Enterprise Architecture Model untuk Aplikasi Government Widodo, Aris Puji
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.426 KB)

Abstract

Instansi pemerintah di Indonesia telah banyak mengembangkan sistem informasi berbasis Information Technology (IT), tetapi pengembangan tersebut masih belum mengacu pada pemanfaatan framework pengembangan sistem informasi. Oleh karena itu, pada makalah ini bertujuan melakukan eksplorasi Zachman framework untuk diterapkan pada pengembangan sistem informasi aplikasi Government,  dengan studi kasus pada instansi pemerintah Dinas Tenaga Kerja, Transmigrasi dan Kependudukan (Dinakertransduk) Provinsi Jawa Tengah. Hasil dari Zachman framework adalah dalam bentuk arsitektur level untuk perencana dengan memperhatikan seluruh aspek pada organisasi instansi pemerintah. Arsitektur level yang dihasilkan dapat memberikan manfaat untuk ketersediaan dokumentasi data, sistem dan teknologi yang mendukung proses bisnis instansi pemerintah dengan pengembangan IT. Kata Kunci : Pemerintah, Zachman Framework, Arsitektur Level
SISTEM INFORMASI VEGETASI MANGROVE (SIVM) BERBASIS WEB DI TAMAN NASIONAL KARIMUNJAWA, JEPARA, JAWA TENGAH Endah, sukmawati Nur; Kusumaningrum, Retno
Jurnal Masyarakat Informatika Vol 1, No 1 (2010): Jurnal Masyarakat Informatika
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.313 KB)

Abstract

Mangrove forest at Karimunjawa National Park that has been used for research, education source, and tourism, needs an information system accessible for global community. The information covers the species, morphology, and taxonomy of mangrove vegetations in Karimunjawa National Park. Human need for up to date and accurate information supported with modern technology motivates the researcher to construct mangrove vegetations information system web based. It is hoped that the information can be accessed by interest group. Methods to be used refers to the stage of system development method. Its name is FAST system. SIVM can be used for all social stratum because this output is easy to understand interesting and user friendly.   Keywords: information system web based, mangrove vegetations

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