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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Masyarakat Informatika MATEMATIKA JURNAL SISTEM INFORMASI BISNIS Journal of Informatics and Technology Jurnal Sains dan Teknologi Semantik TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Ilmiah Kursor Jurnal Teknologi Informasi dan Ilmu Komputer JOIV : International Journal on Informatics Visualization Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Penelitian Pendidikan IPA (JPPIPA) ComTech: Computer, Mathematics and Engineering Applications Journal of Information Systems and Informatics Jurnal Guru Dikmen & Diksus Indian Journal of Forensic Medicine & Toxicology Journal of Social Research Engagement: Jurnal Pengabdian Kepada Masyarakat
Aris Sugiharto
Program Studi Ilmu Komputer, Universitas Diponegoro, Semarang
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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WATERMARKING PADA BEBERAPA KELUARGA WAVELET Sugiharto, Aris; Sarwoko, Eko Adi
MATEMATIKA Vol 7, No 3 (2004): JURNAL MATEMATIKA
Publisher : MATEMATIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.504 KB)

Abstract

Teknik Watermarking banyak digunakan untuk melindungi data digital dari upaya pembajakan dalam bentuk penggandaan secara illegal. Banyak metode yang sudah dikembangkan baik dalam domain spasial, frekuensi maupun domain wavelet. Dalam tulisan ini sistem watermarking yang dibahas adalah domain wavelet dengan menggunakan transformasi wavelet diskrit (discrete wavelet transform) yang diujikan pada beberapa keluarga wavelet dengan menggunakan faktor skala yang berbeda. Kata kunci : watermarking, wavelet, skala
KETAHANAN WATERMARKING TERHADAP SERANGAN KOMPRESI JPEG Sugiharto, Aris; Wibawa, Helmie Arif
MATEMATIKA Vol 8, No 1 (2005): JURNAL MATEMATIKA
Publisher : MATEMATIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.45 KB)

Abstract

Watermarking is one of the methods that proposed to protected digital data from illegally copy.  A lot of technic to destroy watermarking that inserted to digital data, one of them are JPEG compression. In this research will be focus as far JPEG compression can influence watermarking integrated especially at similarity test before and after digital data have JPEG compression attact.  
MODEL DIFRAKSI SINYAL PADA BIDANG MIRING TAJAM suhartono, Suahrtono; Kushartantya, Kushartantya; sugiharto, Aris
MATEMATIKA Vol 11, No 3 (2008): JURNAL MATEMATIKA
Publisher : MATEMATIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (95.13 KB)

Abstract

Signal is a wave that can be expressed by physical phenomenon. Mathematically signal wave can be represented as a function of single or many independent variables, for example signal wave over hill or mountain as a function of distance or time. In fact, signal spreading as a wave have many attenuation, for example is caused by difraction  when the signal over hill or building. The purpose of this writing scientific jurnal is to make a model of knife edge difraction, that seen by two cases, such as transmitter has same height to receiver and transmitter has different height to receiver. Computation result show that transmitter has same height to receiver then the increasing of value of v cause reduction of difraction variable. And  in case of the height transmitter and receiver is not the same, the degradation of v variable has an effect to the increasing of difraction variable.  
Sistem Deteksi Retinopati Diabetik Menggunakan Support Vector Machine Setiawan, Wahyudi; Adi, Kusworo; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 3 (2012): Volume 2 Nomor 3 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (928.963 KB) | DOI: 10.21456/vol2iss3pp109-116

Abstract

Diabetic Retinopathy is a complication of Diabetes Melitus. It can be a blindness if untreated settled as early as possible. System created in this thesis is the detection of diabetic retinopathy level of the image obtained from fundus photographs. There are three main steps to resolve the problems, preprocessing, feature extraction and classification. Preprocessing methods that used in this system are Grayscale Green Channel, Gaussian Filter, Contrast Limited Adaptive Histogram Equalization and Masking. Two Dimensional Linear Discriminant Analysis (2DLDA) is used for feature extraction. Support Vector Machine (SVM) is used for classification. The test result performed by taking a dataset of MESSIDOR with number of images that vary for the training phase, otherwise is used for the testing phase. Test result show the optimal accuracy are 84% .   Keywords : Diabetic Retinopathy, Support Vector Machine, Two Dimensional Linear Discriminant Analysis, MESSIDOR
Data-Based Fuzzy TOPSIS for Alternative Ranking Utomo, Victor; Gernowo, Rahmat; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 3, No 2 (2013): Volume 3 Nomor 2 Tahun 2013
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.098 KB) | DOI: 10.21456/vol3iss2pp104-108

Abstract

Technique for Order Preference by Similarity (TOPSIS) solves multi-criteria decision making (MCDM) by ranking the alternatives. When the attributes are not deterministic, a Fuzzy TOPSIS method is applied. The traditional fuzzy TOPSIS depends on decision makers to determine alternative’s value which considered subjective. A new method named data-based fuzzy TOPSIS proposed to diminish the dependency to decision maker. The proposed algorithm use data to determine alternative’s values objectively. Subtractive Clustering (SC) and Fuzzy C-Mean (FCM) selected to transform crisp value data to fuzzy value data. Some modification applied to SC and FCM to obtain fuzzy triangular value needed by fuzzy TOPSIS.  Keyword : Index Terms—Decision support systems,  fuzzy TOPSIS, fuzzy C-mean, subtractive clustering
Penilaian Risiko Aplikasi Web Menggunakan Model DREAD Suprihanto, Didit; Prahasto, Toni; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 3, No 2 (2013): Volume 3 Nomor 2 Tahun 2013
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.913 KB) | DOI: 10.21456/vol3iss2pp59-66

Abstract

Application that  is developed by web based, beside has surplus in WWW technology, it has susceptibility side that can be threat too. Susceptibility generate risk and can bring out big trouble even effect big disadvantage. The goal of this research is design and build document risk assessment system of threat level and prevention advice. It use DREAD model as method to solve trouble by giving qualified information. This information are used to produce risk level in web application. The result of this research is web application risk assessment system by using DREAD model to know risk threat level and equate perception of web threat risk to application developer, minimize of threat risk and maximize performance of web application.   Keywords : DREAD model, web threat risk, web risk assessment system
The Prediction of Bandwidth On Need Computer Network Through Artificial Neural Network Method of Backpropagation Mekongga, Ikhthison; Gernowo, Rahmat; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 2 (2012): Volume 2 Nomor 2 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.992 KB) | DOI: 10.21456/vol2iss2pp098-107

Abstract

The need for bandwidth has been increasing recently. This is because the development of internet infrastructure is also increasing so that we need an economic and efficient provider system. This can be achieved through good planning and a proper system. The prediction of the bandwidth consumption is one of the factors that support the planning for an efficient internet service provider system. Bandwidth consumption is predicted using ANN. ANN is an information processing system which has similar characteristics as the biologic al neural network.  ANN  is  chosen  to  predict  the  consumption  of  the  bandwidth  because  ANN  has  good  approachability  to  non-linearity.  The variable used in ANN is the historical load data. A bandwidth consumption information system was built using neural networks  with a backpropagation algorithm to make the use of bandwidth more efficient in the future both in the rental rate of the bandwidth and in the usage of the bandwidth.Keywords: Forecasting, Bandwidth, Backpropagation
Sistem Informasi Perpustakaan Berbasis Web Application Irawan, Yudie; Mustafid, Mustafid; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 1, No 2 (2011): Volume 1 Nomor 2 Tahun 2011
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.241 KB) | DOI: 10.21456/vol1iss2pp69-72

Abstract

Digital  library  system  contributes  the  development  of  digital  resource  digital  resource  that  can  be accessed  via the  Internet.  Librarymanagement system contributed to the development of automation membership data processing, circulation and cataloging. In this thesisis  to develop  a new  concept of  digital  library  systems  and  library  management  system  by  integrating  these  two systems  architecture. Integration  architecture  implemented  by  inserting  component  library  management  system  into  the  digital  library  system  architecture. Web application technology required for these components in order to be integrated with the digital library system components.  The newsystem  has  the advantage  of  this  development  application  utilization  of  borrowing,  membership  and  kataloging  to  a  sharable  over the internet,  so  applications  that  can  be used  together.  Information  can be  delivered  between the  library  catalog,  without  leaving the  digitallibrary function in the utilization of shared digital resources derived from uploading by each librarian.Keywords : Digital library system; Library management system; Web application
Penilaian Kinerja Pegawai Lingkungan Perguruan Tinggi dengan Metode Topsis Setyadi, Ary; Adi, Kusworo; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 2, No 3 (2012): Volume 2 Nomor 3 Tahun 2012
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.616 KB) | DOI: 10.21456/vol2iss3pp139-145

Abstract

Employee performance measurement is very important for evaluation and future planning. Most of the government and private agencies are still using Daftar Penilaian Pelaksanaan Pekerjaan (DP3) to assess the performance their employees. DP3 goal is to obtain an objective consideration to employee development and career system based on job performance, formally it used to be a principal consideration material of periodic salary increases and promotions. In this research made ​​a Decision Support System (DSS) for employee performance appraisal DP3 at the college by using TOPSIS method. In this DSS ​​of which there are eight criteria in the DP3, everything is broken down into several sub criteria to get more objective assessment. Initial input of the TOPSIS method is obtained through a calculation using the AHP to find the eigen value of each criterion and the intensity. System created to describe the process of AHP and TOPSIS at each step in a matrix  that can be studied and evaluated the truth of each step in the method used. In testing, this system  is quite effective in the calculation that uses looping and selection. Keywords: TOPSIS, employee performance evaluation, DP3
Penerapan Sistem Informasi Geografis dan AHP Untuk Klasifikasi Masyarakat Supriyono, Supriyono; Mustafid, Mustafid; Sugiharto, Aris
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 1, No 1 (2011): Volume 1 Nomor 1 Tahun 2011
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21456/vol1iss1pp41-46

Abstract

Geographic  information  system  useful  to the  government's  classifications  to  determine  the priority of the  welfare of  society.  While  the criteria  used  are  6  criteria  and  14  sub  criteria  and  their  implementation  is  still  done  by  manual.  The  method  used  in  the  study  "The implementation  of  Geographic  Information  Systems  and  AHP  for  Village-Based  Economic  Classification  Society"  is  the  method  ofAnalytical  Hierarchy  Process  (AHP)  in  which  the  classification  process  conducted  by  the  preparation  of  the  hierarchy,  giving  the comparative value of each criterion to determine the value of the criteria. As for the mapping process using Quantumgis and MSAW 3.0. Quantumgis  and  MSAW  3.0  is used  because  both applications  are  open source applications  that  can  be used  without having  to pay  fortheir use. The results of the application system that can be used to make the process of classification societies where the determination ofcriteria  and  sub  criteria  can  be changed  in accordance  with  the  desired  indicator.  Results  included  as  data  calculation  and  classificationwith the City district map can be made a map of economic classification society in City districtKeywords: Geographic information systems; AHP; Economic; Classification society.
Co-Authors Abd. Rasyid Syamsuri Adi Wibowo Afry Rachmat Agus Suwandono Andi Gunawan Antariksa, Muhammad Deagama Surya Ari Wibawa Budi Santosa Arief Hidayat Arif Wibawa, Helmie Ary Setyadi Bagoes Widjanarko Bayu Surarso Bayu Surarso Budi Warsito Budi Warsito Dedy Kurniawan Hadi Putra Didit Suprihanto, Didit Eko Adi Sarwoko eko adi sarwoko Eko Didik Widianto Eko Didik Widianto Eko Nur Hidayat Eko Prasetiawan Fajar Hari Prasetyo Fajar Nugraha Ganis Khufad Arridho Hanif Setiawan, Syariful Helmi Arif Wibawa Helmie Arif Wibawa Helmie Arif Wibawa Henny Indriyawati Hidayat, Agung Rahmad Ikhthison Mekongga Indriyati Indriyati Irfan Pradipta Juwanda, Farikhin Kamal Maulana Kushartantya Kushartantya Kusworo Adi Lusiana Kristiyanti Lutfi Rinanto Mochammad Hosam Muhammad Malik Hakim, Muhammad Malik Mustafid Mustafid Nazla Nurmila Nikmah Rahmawati Pradhitya Nur Diyah S Pramudita Eka Hananto Prastio, Wahyu Tedi Priyo Sidik Sasongko Purwanto Purwanto R Rizal Isnanto Ragil Saputra Rahmat Gernowo Rambing, Danni Riyana Putri, Fayza Nayla Rizki Saputra, Naufal Roby Hanintyo Nursio Sakti Rukun Santoso Sembiring, Rinawati Septya Maharani, Septya Sinta Tridian Galih Sugiyamto Sugiyamto suhartono, Suahrtono Sukmawati Nur Endah Supriyono Supriyono Suryo Hartanto Sutikno Sutikno Sutopo Patria Jati Tarno Tarno Toni Prahasto Victor Gayuh Utomo Wahyu Adi, Prajanto Wahyu Krisna Hidayat Wahyu Krisna Hidayat Wahyudi Setiawan widowati widowati Wijayanto, Ahmad Yudie Irawan Yulianto Prabowo Yusuf Fahmi Adiputera