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Jurnal Komputasi
Published by Universitas Lampung
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Core Subject : Science,
Lingkup dan fokus jurnal berkaitan dengan tema-tema computer science, information technology, information system, software engineering, data mining, artificial intelligence, networking, multimedia, database, dan operating system
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Articles 231 Documents
Optimasi Query pada sistem informasi pencatatan aktifitas perubahan data nilai mahasiswa nilaliliana prihatin; dwi sakethi; febi eka febriansyah
Jurnal Komputasi Vol 4, No 2 (2016)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v4i2.1378

Abstract

A large amount of data can affect the search process the data in a database. The greater the amount of data, then the data search process will take longer. In a process of value management, activity data changes the value of an activity that is often overlooked by managers value. This system is used to listing activites done by student grades manager. The recording process will make the amount of data increases and pencarianya time it will take substantial time. The prior research explained that relational operators combined with indexing strategy in sub query has a better performance compared to using the other methods. This research using indexing strategy and nested query for activity listing information system for student grades data changes. The process of system testing conducted several experiments such as comparing data using index and data that did not use the index (table scan) to several conditions, namely the data on the amount of 517, 980, 2369, and 4221. Nested query testing and regular query or query were tested directly using the same amount of data and applied on subjects data search. Indexing strategy that is applied to the big amount of data will generate faster execution time than a search without indexing strategy, in contrary to the small amount of data indexing strategy does not really affect the search process. The use of nested query in the subjects data search will be faster than the search time regular query or query directly.
RANCANG BANGUN PEMANDU VIRTUAL BERBASIS MOBILE UNTUK MUSEUM LAMPUNG MENGGUNAKAN AUGMENTED REALITY Ossy Dwi Endah Wulansari; Anie Rose Irawati; deasy kusuma anggraeny
Jurnal Komputasi Vol 2, No 1 (2014)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v2i1.997

Abstract

LEARNING MANAGEMENT SYSTEM (LMS) CLAROLINE PADA PERANGKAT MOBILE ANDROID Kurnia Muludi; Ossy Dwi Endah Wulandari; Dedi Kurniawan
Jurnal Komputasi Vol 1, No 2 (2013)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v1i2.435

Abstract

E-Learning nowadays is still accessible via the web browser. E-Learning has a server named Learning Management System (LMS). LMS consists of a paid, unpaid and a tailor (version specially ordered). For this research, LMS is used which is not paid. There are lots of LMS are not paid, one of these is Claroline. The development of E-Learning is followed by the development of mobile devices such as Android devices. Android usage has increased each year but applications for E-Learning are still underdeveloped. Based on this background, then it is needed to develop an E-Learning application on Android mobile devices, because Android devices can support the development of client applications of E-Learning. The purpose of developing this application is to enable users who use Android devices to download the file from existing lecture materials wherever, whenever they want through their Android devices.In this research, the application is developed using Eclipse as an IDE using Java programming language for Android, XML, and of course the Claroline as the LMS server. This application is the complement of Claroline which is normally access through a web browser.The results of this research show that the client application is able to download files that exist on the lecture materials from Claroline server. Keywords : E-Learning, Android, Learning Management System, Claroline, Mobile Application, E-LearningApplication
PERANCANGAN APLIKASI DESKTOP SISTEM INFORMASI GEOGRAFIS (SIG) PENYEBARAN WISATA KULINER DI KOTA BANDAR LAMPUNG Kurnia Muludi; Astria Hijriani; Khalida Zhia
Jurnal Komputasi Vol 2, No 2 (2014)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v2i2.1093

Abstract

People need more information about geographical related objects, for example: distance between regions, object locations, facilities, natural resources etc. Geographic Information System (GIS)  is a solution for getting information on geographical related objects. The object of this research is Lampung culinary, because Lampung Province has many typical foods and many culinary places for young people, teenagers, and parents to gather. That culinary places can be categorized as café, restaurant, and many more. This application is developed using Microsoft Visual Basic Express 2010 and MapWinGIS ActiveX Control.  The development of this application implement Water Fall method.  Other supporting softwares  are My GPS Coordinates, Quantum GIS, and Microsoft Access Database.
Pengembangan Sistem Simulasi Ujian Nasional Sekolah Menengah Atas (SMA) Online Berbasis Web Sakethi, Dwi; Pribadi, Irwan Adi; Destiana, Ririn
Jurnal Komputasi Vol 2, No 2 (2014)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v2i2.410

Abstract

The national exam is a method of testing to education in Indonesia for determining students graduation in senior high school. The determine graduate base on the minimum value that must be obtained by students and established by the government. Students follow the simulated exam before faced the national exam for value of the capability test. The purpose in this research is develop a simulation system the national exam for senior high school students with a web-based, so it can be accessed online. In addition, the purpose in this research to build the another alternative in simulation exams except in the school. Development systems using the programming languagePHP and the MySQL database. The testing system indicates that the system can function properly when doing the process simulation test and get the results right after finish working on problems such as the simulation test. Keywords: National Exam, Simulation System, Web.
Rancang Bangun Aplikasi Agen Pulsa Elektronik Bebasis Android (Studi Kasus Distributor Pulsa Maxrefil) Kurniawan, Didik; Hijriani, Astria; Hartawan, Ferdi Tanza
Jurnal Komputasi Vol 3, No 2 (2015)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v3i2.1149

Abstract

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PEMETAAN PENYEBARAN DAN PREDIKSI JUMLAH PENDUDUK MENGGUNAKAN MODEL GEOMETRIK DI WILAYAH BANDAR LAMPUNG BERBASIS WEB-GIS Rahayu, Yuni; Muludi, Kurnia; Hijriani, Astria
Jurnal Komputasi Vol 4, No 1 (2016)
Publisher : Jurnal Komputasi

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

Abstract

Population distribution patern is one of Bandar Lampung government concerns. This information is useful for goverment decision making for specific local development.The prediction of population number using certain model is predicted will be useful for Bandar Lampung development plan.  Information about distribution and prediction of resident population in Bandar Lampung are processed manually and limitedly presented in form of tables and graphs. The purpose of this research is to build Bandar Lampung web based Geographic Information System that predict population distribution and mapping using Geometric Model. Data in this research were obtained from Statistics Of Bandar Lampung Municipality Publication. This system was implemented by using QGIS, GeoServer, PostgreSQL and PHP programming language. Overall,the testing results show that the system is appropriate and functional.Keywords: Geographic information system, Geometric Model, Mapping population.
Penerapan Metode Case Based Reasoning Pada Pengembangan Aplikasi Recipe Recommendation Berbasis Android Kurnia Muludi; Didik Kurniawan; Lia Atika Rani
Jurnal Komputasi Vol 4, No 2 (2016)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v4i2.1214

Abstract

Recipes are needed as a means to guide people when preparing ingredients for cooking, making and serving food. These days there are more and more smartphone users and Android is the most dominant operating system. Android based smartphone is very easy to use, so many people choose  it.  Case   Based Reasoning (CBR) is  a  problem solving approach by emphasizing the role of prior experience. New problems can be solved by utilizing toward similar problems that have been solved before. In this study, we design and build a Recipe Recommendations Apps for Android  and applying Case-Based Reasoning method.   This application provide recommendations of any recipes of Indonesian Foods that can be made by inputting available ingredients and step by step of cooking and the way they are presented. This evaluation show that the application successfully constructed and useful for user.
PERBANDINGAN METODE DYNAMIC CELL SPREADING (DCS) DAN SPREAD SPECTRUM PADA STEGANOGRAFI BERBASIS APLIKASI WEB Wamiliana Wamiliana; Astria Hijriani; pita utari ningtyas
Jurnal Komputasi Vol 5, No 1 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v5i1.1522

Abstract

The security is the most important thing in sending a secret message and there are many ways to send a message safely, one of those is steganography. In this research we will compare Dynamic Cell  Spreading (DCS) and Spread Spectrum method based on web application using image as the media and hide the secret message. The file format used are (.jpg) as input cover,(.png) as output stegoimage, and  (.txt) as data that can be inserted. Doing some test to manipulate brightness, contrast, and cropping the results show that Spread Spectrum method better than Dynamic Cell Spreading method. The Spread Spectrum method mostly returns the message in the brightness and contrast manipulation. Cropping stegoimage on the right area or bottom image has less risk of losing data depend on the cropping scale and image resolution.
IMPLEMENTASI ALGORITMA BACKTRACK UNTUK PENCARIAN SOLUSI KNIGHT’S TOUR PROBLEM PADA PAPAN CATUR m x n Wamiliana, Wamiliana; Kurniasari, Dian; Yudhistira, Dolly
Jurnal Komputasi Vol 1, No 1 (2013)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v1i1.397

Abstract

This research discusses about finding all solutions of The Knight's Tour Problem. The steps done by a knight on a chess board forms a path. If the track is able to pass through all points (boxes)  and can return to the original point (box)  is called as Hamilton Cycle, that produces Closed Knight's Tour;  if the path can pass through all the points but can not return to the original point of the track is called as Open Knight's Tour. There are various ways to solve the Knight's Tour Problem, one of which is to use the Backtrack algorithm. In this paper we will discuss of finding all solutions of Knight’s Tour Problem vary from 3x3 up to 8x8 chessboards.Keywords: knight’s tour problem, backtrack algorithm, open and closed knight’s tour

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