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INDONESIA
Jurnal Informatika
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Articles 9 Documents
Search results for , issue "Vol 12, No 2 (2014): NOVEMBER 2014" : 9 Documents clear
APLIKASI VIRTUAL TOUR 3D PABRIK PT. X Utomo, Willy Nugraha; Liliana, ,; Gunadi, Kartika
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.423 KB) | DOI: 10.9744/informatika.12.2.84-89

Abstract

Company X is a reputable company that has more than 1000 people employees. One of the routines that performed by company X is orientation for new employees, and there is an event that invites them to visit the factory. The location of the main office and the factory is far, so this activity lacks time efficiency. This application aims to facilitate company X in conducting new employee orientation so that the location can be seen in the virtual world. The first thing in the process of making the application is visiting the factory to determine the shape and position of the object, so that the expected results are shown to resemble its original condition. 3d object and its texture are created using Blender application that can be imported into the made application. Collision feature aims to prevent users from penetrating the objects.The position, shape and location of objects contained in the application already resemble the original plant site. The main obstacle in making this application is the creation time, so the detailed map of the plant cannot be completed. The main building, the production building and the warehouse have been made, only small objects contained in the main building have not been contained.
SETTING UP AN INDUSTRIAL CONTROL SYSTEMS LABORATORY Liuwan, Haryanto Natalius; Schellekens, Casper; Trivellato, Daniel
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.459 KB) | DOI: 10.9744/informatika.12.2.53-56

Abstract

With the evolution of Industrial Control Systems, many solutions from vendors are offered for industries. But sadly, most of those solutions are close-sourced, delivering lack of support for third parties who aim to develop Industrial Control Systems further. A start-up company named SecurityMatters needs an industrial instrument to simulate industrial environment to have a better idea how a particular protocol works. The application made in this project was developed using Java programming language to have compatibilities across platforms. An Object-Oriented-Programming and Model-View-Controller pattern are used as well to ensure maintainability. This application can be used to demonstrate capabilities of Modbus protocol and test industrial devices for vulnerabilities.
PREDIKSI CUACA MENGGUNAKAN METODE CASE BASED REASONING DAN ADAPTIVE NEURO FUZZY INFERENCE SYSTEM Chaniago, Ria; Liong, The Houw; Wardani, Ken Ratri Retno
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.721 KB) | DOI: 10.9744/informatika.12.2.90-95

Abstract

Weather is one of the nature elements that can influence decision making in human's life. Based on that issue, the author wants to make an application that is able to predict weather with good accuracy. The application is a weather forecasting system, using computer technology that implements expert system. The methods used are Adaptive Neuro Fuzzy Inference System (ANFIS) and Case Based Reasoning (CBR), and a combination of both methods will applied to the system. The system also has learning methods like Backpropagation Error (BPE) and Recursive Least Error (RLSE), to increase its accuracy. Clustering and data cleaning also done inside the system, as it needed by forecasting process to achieve a good result. K-Means is the clustering algorithm, while Box and Whisker Plot is the algorithm for data cleaning. The result from this project is to create a weather forecasting system with high accuracy.
SKIN SEGMENTATION AND SKULL SEGMENTATION FOR MEDICAL IMAGING Tjandra, Eric Yogi; Liliana, ,; Kheng, Leow Wee
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.836 KB) | DOI: 10.9744/informatika.12.2.57-62

Abstract

In this paper aims we present tools for medical imaging applications to do skin and skull segmentation in a short time. The desired output for skin segmentation is a 3D visualization of the facial skin without any cavities or holes inside the head, while skull segmentation aims to create a 3D visualization of the skull bones. The algorithm used for skin segmentation is thresholding the image, extracting the largest connected component, and holefilling to fill the unnecessary holes. As for the skull segmentation, the process is done by removing the spines which is connected to the skull, and then extracting the largest connected component. Afterwards, mesh generation is done to produce the 3D objects from the processed images. This mesh generation process is done using the marching cubes algorithm. The testing results show that the skin and skull segmentation process will work well when there are no other objects that are connected to the skin or the skull. Skin segmentation process takes a significant amount of time, primarily caused by the holefilling process.
IDENTIFIKASI FAKTOR PREDIKSI DIAGNOSIS TINGKAT KEGANASAN KANKER PAYUDARA METODE STEPWISE BINARY LOGISTIC REGRESSION Vinarti, Retno Aulia; Anggraeni, Wiwik
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.712 KB) | DOI: 10.9744/informatika.12.2.70-76

Abstract

The World Health Organization (WHO) reported that deaths caused by cancer in the world these last four years has increased significantly. The data also reflected in the increase in breast cancer cases. In Indonesia, two cases also the highest cases of adult female deaths. Based on Hospital Information System, the number of breast cancer patients either inpatient or outpatient care amounted to 28.7%. This fact revealed more than 40% of all cancers can be prevented with early detection cancer. Role of Information Technology can implemented by data mining techniques to shorten the diagnosing time, accuracy and selection of factors early detection of breast cancer. Stepwise binary logistic regression method has the advantage to add and subtract the independent variables in accordance with level of significance of the model. Based on the analysis of weighting method, the highest four variables that should be more aware is the area of cancer (area), fineness (smoothness), the number of dots (concave points) or the nucleus of cancer and grayish level of cancer (texture). So the accuracy and processing speed of diagnosis of the severity of breast cancer can be improved through this method.
INTERPRETASI E-LEARNING SEBAGAI SUPPORT MEDIA UNTUK PEMBELAJARAN BAHASA MANDARIN BAGI SISWA SEKOLAH DASAR Hari, Yulius; Aspali, Darmanto; Hermawan, Budi
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.247 KB) | DOI: 10.9744/informatika.12.2.77-83

Abstract

Nowadays, many schools are teaching the Chinese Language as curriculum, including elementary school. While the major problems in Chinese language learning is a form of pronunciation or intonation that much different from the Indonesia language who does not pay attention to the tone. In the Chinese language curriculum students are expected to be able to listen, to pronounce, to read and to write. Furthermore, learning arithmetic subject in Chinese language is quite difficult, because besides being able to pronounce the numbers correctly, the student should be able to count it. Hence the limitations of print media is not able to accommodate learning in listening, especially pronunciation or intonation correctly and also the writing. This led to the emergence of the spatian contiguity between text books with information on what is perceived by the learner. This study attempts to bridge these limitations by accommodating a media in web-based learning that also train the ability to listen and write, so that the spatial distance between the information in the book with a learner can be reduced . The results of this study are expected to provide a new alternative as a model for Chinese language learning, especially in Indonesia.
SISTEM PENILAIAN ESAI OTOMATIS PADA E-LEARNING DENGAN ALGORITMA WINNOWING Astutik, Sariyanti; Cahyani, Andharini Dwi; Sophan, Mochammad Kautsar
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.824 KB) | DOI: 10.9744/informatika.12.2.47-52

Abstract

Exam essay is an evaluation of learning in the form of essay questions that have answers more variable than multiple choice questions. Variations of these answers provide its own difficulties for teachers in assessing response. Essay grading system is built to be one solution that can speed up and simplify the process of grading. Essay grading system in this study was done by measuring the similarity of responses of the students and teacher answer key. This research use winnowing algorithm. Winnowing algorithm is an algorithm for text similarity measure. Winnowing algorithm produces fingerprint of text that will represent the answer to the calculation of similarity with jaccard coeficient equation. Testing was conducted to determine the ability of the algorithm winnowing to provide an essay grading using n-gram and window value changes of the winnowing algorithm. The test results showed the use of the value of n-grams and window on the method of winnowing effect on fingerprint similarities were found. The more similarities fingerprint found, the value of the resulting system also be higher. The accuracy of the grading system showed better results on text answers that have the answer sentence structure same with key answer.
SISTEM DETEKSI WAJAH PADA OPEN SOURCE PHYSICAL COMPUTING Sudianto, Yupit; Samopa, Febriliyan
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/informatika.12.2.96-108

Abstract

Face detection is one of the interesting research area. Majority of this research implemented on a computer. Development of face detection on a computer requires a significant investment costs. In addition to having to spend the cost of procurement of computers, is also required for operational cost such as electricity use, because the computer requires large power/watt.This research is proposed to build a face detection system using Arduino. The system will be autonomous, in other word the role of computer will be replaced by Arduino. Arduino is used is Arduino Mega 2560 with specifications microcontroller AT MEGA 2560, a speed of 16 MHz, 256 KB flash memory, 8 KB SRAM, 4 KB EEPROM. So not all face detection algorithm can be implemented on the Arduino. The limitations of memory owned by the arduino will be resolved by applying the method of template matching using the facial features in the form of a template that is shaped like a mask. Detection rate achieved in this study is 80% - 100%. Where, in the Arduino's success in identifying the face are influenced by the distance between the camera with the human face and human movement.
DATA MODEL CUSTOMIZATION FOR YII BASED ERP APPLICATION Leander, Andre; Wibowo, Adi; Dewi, Lily Puspa
Jurnal Informatika Vol 12, No 2 (2014): NOVEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/informatika.12.2.63-69

Abstract

As UD. Logam Utama’s business grow, trigger the need of fast and accurate information in order to improve performance, efficiency, control and company’s values. The company needs a system that can integrate each functional area. ERP has centralized database and able to be configured, according to company’s business processes.First phase of application development is analysis and design the company’s business processes. The design phase produce a number of models that will be used to created application.The final result of application development is an ERP application that can be configured with the company’s business process. The ERP application consist of warehouse or production module, purchasing module, sales module, and accounting module.

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