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INDONESIA
Jurnal Informatika
Published by Universitas Ahmad Dahlan
ISSN : 19780524     EISSN : 25286374     DOI : 10.26555
Core Subject : Science,
Computer Science & IT
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 12, No 1: January 2018" : 5 Documents clear
Deep learning application using neural network classification for cyberspace dataset with backpropagation algorithm and log-linear models Baiq Siska Febriani Astuti; Tuti Purwaningsih
Jurnal Informatika Vol 12, No 1: January 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.249 KB) | DOI: 10.26555/jifo.v12i1.a8566

Abstract

This study aims to classify bloggers in the Kohkiloye and Boyer Ahmad Province in Iran where causes of users tend cyberspace on there. The database was got from UCI Machine Learning Repository. There are 100th object and 6th variables. All of the variables were Professional Bloggers, Political and Social Space (LPSS), Local Media Turnover (LMT), Political Caprice, Topics, and Degree. This study has using Artificial Neural Network with backpropagation algorithm and Log-linear models for classify Bloggers (Cyber Space). We classify blogger to two groups: professional bloggers and seasonal (temporary) bloggers. The result of this study is Neural network with backpropagation algorithm has been shown to be useful tool for prediction, especially for this case. From this study, we can see on the result that miss-classification with backpropagation algorithm less than using Log-Linear Models
A basic element of it business continuity plan: systematic review Yusrida Muflihah; Apol Pribadi Subriadi
Jurnal Informatika Vol 12, No 1: January 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.888 KB) | DOI: 10.26555/jifo.v12i1.a8370

Abstract

Implementation of IT in the enterprise raises the possibility of various risks arising from threats and disturbances. Companies need to have business continuity planning (BCP), so that the company's business processes can be sustain in normal or critical situations. BCP is a methodology used to create and validate plan to sustain business operations continuously before, during, and after disasters or disturbing events. BCP is an important part of Business Continuity Management (BCM) and is a step that can be taken to reduce the negative impact of business interruptions caused by internal and external. The current condition of the Business Continuity Plan is the lack of understanding of the key elements of the business continuity plan design that leads companies to realize what business continuity plan are or do not know what is needed to make BCP and BCP owned by the company still lack in completeness of the business continuity strategy. Based on the present condition, this research aims to explore the elements of BCP based on business continuity standard that is COBIT 5 Domain: Manage Continuity, ISO 22301: 2012 Business Continuity Management System, ITIL IT Service Continuity Management and related business continuity plan research. The results of the research are BCP has 8 main elements, determining the need of business continuity management, business continuity review, risk analysis, business impact analysis, business continuity strategy, disaster recovery plan, employee training, BCP testing, where the eight elements can be categorized into two are managerial and technical.
Reusability ontology in business processes with similarity matching Meida Cahyo Untoro; Riyanarto Sarno; Nurul Fajrin Ariyani
Jurnal Informatika Vol 12, No 1: January 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jifo.v12i1.a7175

Abstract

The working technology will provide information and knowledge. Information and technology can be developed in various ways, by reusing the technologies. In this study modeled the ontology of SOPs using protégé. Ontology will be matched between ontology A and B to obtain similarity and reuse ontology to create a more optimal ontology. Matching is a matching process between both ontologies to get the same value from both ontologies. Jaro-Winkler distance is used to find commonality between ontology. The result of the Jaro-Winkler distance has a value of 0 and 1, in matching will be obtained value close to 0 or 1. On matching ontology obtained two tests using 40% SPARQL query. In the test it uses Jaro-Winkler distance with a value of 0.67. This research yields matching value between ontology A and ontology B which is the same so that reuse ontology can be done for better ontology
Analysis and design of information systems news portal citizen journalism Sumba-Indonesia as local content promotion media Jefonses Yarsian Pote
Jurnal Informatika Vol 12, No 1: January 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (863.921 KB) | DOI: 10.26555/jifo.v12i1.a8367

Abstract

Citizen journalism is a journalistic activity undertaken by a person or group. So far, information on the potential of the Sumba Island has not been evenly distributed because there is unequal information on the Sumbanese community and information on potential in eastern Sumba. The purpose of this research is to provide media for the citizens of Sumba in providing any information about local content in Sumba Island such as information on agriculture, plantation, forestry, tourism, cultural information, social information, political information, law, and human rights. The methodology used to build this system is the Waterfall Model. This model is an approach to software development, with several stages, namely: System Engineering, Analysis, Design, Encoding, Testing, and Maintenance. The development concept used is Model-View-Controller or MVC is a method to create an application with separate data (see) and the corresponding way (Controller). In the implementation of framework in the application of website-based architecture MVC. MVC is developing a major component-based application that builds an application such as data manipulation, user interface, and parts that become controls in a web application.
The C# implementation of numerical calculation process on non linear equation solutions Yahya Yahya; Amri Muliawan Nur
Jurnal Informatika Vol 12, No 1: January 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.258 KB) | DOI: 10.26555/jifo.v12i1.a8355

Abstract

Solutions in the process of resolving numerical methods, especially "Solutions of Non Linear Equations", are determined by several criteria including: 1. Solutions will be obtained if the tolerances found from numerical calculations are less than or equal to the specified tolerances, depending on the criteria of the question. 2. The solution will be obtained if the function value f(xn +1) reaches zero (0). 3. The solution will be obtained if the value of xn+1 has a constant value (no change). In some observations of manual efforts to find non-linear equations solutions, students cannot do the calculation perfectly. This is due to lack of understanding of teaching materials or modules and also the algorithms that are difficult to grasp. Moreover, the calculation has to be done for several times iterations in order to obtain the expected results. Comparing the results of calculations done manually using Microsoft Excel and the result of calculations using numerical applications created using C# programming language, it concludes: non-linear equations manual calculation to get one of the roots of non-linear functions tend to not completed in a short time so the error rate and accuracy cannot be measured. The calculations performed using Microsoft Excel, obtained the error rate reaches 0.158% and the accuracy rate reaches 99.842%. Calculations performed using numerical applications using the C# programming language obtained error rate reached 0.004% and accuracy rate reached 99.996%.

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