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ComTech: Computer, Mathematics and Engineering Applications
Published by Universitas Bina Nusantara
ISSN : 20871244     EISSN : 2476907X     DOI : -
Core Subject : Science, Education, Engineering,
Computer Science & IT Engineering Mathematics
The journal invites professionals in the world of education, research, and entrepreneurship to participate in disseminating ideas, concepts, new theories, or science development in the field of Information Systems, Architecture, Civil Engineering, Computer Engineering, Industrial Engineering, Food Technology, Computer Science, Mathematics, and Statistics through this scientific journal.
Arjuna Subject : -
Articles 46 Documents
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Search results for , issue "Vol 5, No 1 (2014): ComTech" : 46 Documents clear
Perbandingan DTCWT dan NMF pada Face Recognition menggunakan Euclidean Distance David, David; Luwinda, Ferdinand Ariandy
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2580

Abstract

Dual tree complex wavelet transform (DTCWT) is widely used for representation of face image features. DTCWT is more frequently used than Gabor or Discrete Wavelet Transform (DWT) because it provides good directional selectivity in six different directions. Meanwhile, non-negative matrix factorization (NMF) is also frequently used since it can reduce high dimensional feature into smaller one without losing important features. This research focused on comparison between DTCWT and NMF as feature extraction and Euclidean Distance for classification. This research used ORL Faces database. Experimental result showed that NMF provided better results than DTCWT did. NMF reached 92% of accuracy and DTCWT reached 78% of accuracy. 
Pengembangan Sistem Informasi Pemasaran pada Cv. Rumah Vera Hartono, Sugiarto
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2635

Abstract

Evolving information technology can make business processes, which are carried out traditionally, transformed through the application of information technology that is useful for companies. Effective information systems design, should be used and provide a positive influence for the benefit of the organization. CV. Rumah Vera is a company that is engaged in the business of selling and marketing the property. The company began to realize that the implementation of information systems is very important in the development of its business. Rumah Vera requires a system that utilizes information technology, which can record all business transactions related to the marketing information system. Design methodology used is Agile methodology with object-oriented approach.
Pegembangan Game dengan Menggunakan Teknologi Voice Recognition Berbasis Android Marpaung, Franky Hadinata; Sutoyo, Rhio; Daniel, Daniel; Yonas, Yonas; Vedro, Vedro
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2608

Abstract

The purpose of this research is to create a new kind of game by using technology that rarely used in current games. It is developed as an entertainment media and also a social media in which the users can play the games together via multiplayer mode. This research uses Scrum development method since it supports small scaled developer and it supports software increment along the development. Using this game application, the users can play and watch interesting animations by controlling it with their voice, listen the character imitating the users? voice, play various mini games both in single player or multiplayer mode via Bluetooth connection. The conclusion is that game application of My Name is Dug use voice recognition and inter-devices connection as its main features. It also has various mini games that support both single player and multiplayer.
Penerapan Sociotechnical System pada Data Collection System Tanoto, Dian Felita; Marcellinus, Yonathan; Hidajat, Monica
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2599

Abstract

Humans and technology are two things that can not be separated. The rate of population growth, which is growing rapidly, proportional to the needs of people in many ways. Each activity and human needs, should be documented, so any activity and human needs can be predicted. Therefore, the data need to be collected and stored properly, effectively, and accuratel. Socio-Technical System is expected to assist and facilitate human in performing the collection and storage of data. Socio-Technical System can be applied by taking into account various aspects ranging from social, psychological, computer science, and technical. Methods of Socio-Technical implementation consists of requirements analysis, system design, implementation, testing, deployment, maintenance. In the testing phase, it should be noted the social and psychological aspects of the user. 
Piranti Lunak Pengujian Struktur Matematika Grup, Ring, Field Berbasis Osp (Open Source Program) Manik, Ngarap Im; Tasman, Don
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2631

Abstract

This design of a computer software is a development and continuation of the software made on the previous research (2009/2010). However, this further research developed and expanded the scopes of testing more on the Siclic Group, Isomorphism Group, Semi Group, Sub Group and Abelian Group, Factor Ring, Sub Ring and Polynomial Ring; developed on the OSP (Open Source Program)-based. The software was developed using the OSP-based language programming, such Java, so it is open and free to use for its users. This research succeeded to develop an open source software of Java program that can be used for testing specific mathematical Groups, such Ciclic Group, Isomorphism Group, Semi Group, Sub Group and Abelian Group, and Rings, Commutative Ring, Division Ring, Ideal Sub Ring, Ring Homomorphism, Ring Epimorphism and Fields. By the results, the software developed was able to test as same as the results from manual testing.
Penggunaan Virtual Machine dalam Pembelajaran Jaringan Budijono, Santoso; Saleh, Robby
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2643

Abstract

Computer Networks is an important course as a basis in computer science. This is because at this time all activities are associated with the use of network system or communication system. In the course of learning in Computer Networks, students are often difficult to understand network concepts, especially with many layman terms for students. The term IP, Subnet Mask, Gateway, and Router are the terms widely used in network. To better understand the use of the IP, Subnet Mask, Gateway, and Router, it should be given concrete examples of the application day-to-day. Such as setting the IP, Subnet, Gateway, and Router on a PC connected to the network, it is hoped that students can quickly understand. This prototype used some Virtual Machines considered to represent the need for the creation of multiple virtual machines in one computer. The resulting prototype is expected to be useful in learning the Networking matter in Computer Networks subject. Research successfully created 2 Virtual Machines in 1 computer, with the network in both Virtual Machines isolated and not connected to the Internet.

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