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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 52 Documents
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Search results for , issue "Vol. 4 No. 1 (2013): ComTech" : 52 Documents clear
Penerapan Ensemble Feature Selection dan Klasterisasi Fitur pada Klasifikasi Dokumen Teks Mediana Aryuni
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2745

Abstract

An ensemble method is an approach where several classifiers are created from the training data which can be often more accurate than any of the single classifiers, especially if the base classifiers are accurate and different one each other. Menawhile, feature clustering can reduce feature space by joining similar words into one cluster. The objective of this research is to develop a text categorization system that employs feature clustering based on ensemble feature selection. The research methodology consists of text documents preprocessing, feature subspaces generation using the genetic algorithm-based iterative refinement, implementation of base classifiers by applying feature clustering, and classification result integration of each base classifier using both the static selection and majority voting methods. Experimental results show that the computational time consumed in classifying the dataset into 2 and 3 categories using the feature clustering method is 1.18 and 27.04 seconds faster in compared to those that do not employ the feature selection method, respectively. Also, using static selection method, the ensemble feature selection method with genetic algorithm-based iterative refinement produces 10% and 10.66% better accuracy in compared to those produced by the single classifier in classifying the dataset into 2 and 3 categories, respectively. Whilst, using the majority voting method for the same experiment, the similar ensemble method produces 10% and 12% better accuracy than those produced by the single classifier, respectively.
Perancangan Man Hour Integrated Control Application pada Perusahaan Barbasis Project Rahayu Ary Yuniarti
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2746

Abstract

The purpose of the study is to analyze and design an integrated application for managing man hour called Manhour Integrated Control Application (MICA) for a project-based company. Users can easily monitor the progress of man hour’s usage using this application which can be accessed from different project sites. The methodology used in the study are (1) analysis towards the business process followed by identification of user requirement by interview with user, document analysis and literature study; and (2) design for database and user interface. The result expected from the study is web-based integrated application which can help user control and monitor project’s progress based on man hour and man power allocation and can be accessed from project site.
Model Konseptual Sistem Informasi sebagai Penunjang Operasional Perusahaan Dagang Tanty Oktavia
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2747

Abstract

Many ways are taken to be superior in the existing competition, such as differentiation products, identifing new marketing strategies, and improving the performance of operational activities in order to obtain positive responses from the customer. The role of the customer in the implementation of a trading company holds an important position because of all the activities carried out focus on how companies can build satisfaction for the customer, so that in the future they will be back to the company'. This research discusses the design of an information systems to support the implementation of the company's daily operation which consists of selling activities, purchasing, and stock. The method used consists of analysis and design. Analysis begins from the identification of operational processes and data used in daily trading company in general, equipped with some concepts from supporting research literature to develop a model that can be applied. Meanhile the design method through the object oriented approach are illustrated using diagrams Unified Modelling Language (UML). A conceptual model of information system that can be implemented in support of the company's trading operations, which can provide competitive advantage for the company to face competition in the industry.
Pengembangan Model Perangkat Ajar Berbasis Animasi: Studi Kasus Mata Ajar Biologi pada SMP Yaspia dan SMK Bina Manajemen Cakung Jakarta Timur Tri Pujadi; Harisno Harisno
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2748

Abstract

Use of the Internet at schools grows advanced. Therefore, teachers need to learn the use of technology in creating good teaching materials (learning objects) such as animation-based materials. Those materials will result will in a component in a learning system that allows students to interactively learn and evaluate themselves against the subject mastery. A tool for creating such an animated material like Powerpoint produces presentations enhanced with audio and video that allows students to comprehend the lessons more easily. The model system uses interactive multimedia system design and development with the following phases: (1) system requirements, (2) design considerations, (3) implementation, (4) evaluation. While user interface design principles uses eight golden rules of interface design. As a test case, selected Biology at Yaspia junior high school and Bina Management vocational school. From the results it can be concluded that this application module can support students in obtaining the required data completeness. The tutorials are quite sufficient to facilitate students in understanding the material.
Lean Strategy Implementation to Improve Throughput in Assembly Line: Dul-Db21ssc Manufacturing Process at PT. X Gemma Eka Santoso; Gita Ayu; Nike Septivani
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2749

Abstract

Lean production has dramatically lifted the competitiveness of many manufacturing companies and the value they deliver to customers. This project examines the benefit of balancing process and workstation arrangement of dogbone damper in an order that maintains a smooth flow of materials and component through the process. The analysis begins from calculating takt value to establish the required rate of production. From here, any total cycle time exceeding takt time is called a bottleneck process and should become a target of the improvement. Next, arranging people and equipment into cells has great advantage in terms of achieving lean goals. One advantage of cells is the one-piece flow concept, which states that each product moves through the process one unit a time without sudden interruption, at a pace determined by the customer’s need.  
Penerapan Metode Dmaic dalam Peningkatan Acceptance Rate untuk Ukuran Panjang Produk Bushing Ferdian Hartoyo; Yudha Yudhistira; Andry Chandra; Ho Hwi Chie
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2761

Abstract

PT Argatama Multy Agung is one provider of metal cutting services using turret machine. The quality of metal cutting services offered are still questioned. The quality service intended is that the length accuracy of the outcome product meets the requirements of the requested length. The purpose of this study is to determine what factors lead to defects the goods length, as well as to provide the right solution that factors can be eliminated so that the number of defective products can be reduced. In this research authors implement Six Sigma methodology with an improved model of Define-Measure-Analyze-Improve-Control (DMAIC) to perform improvement in the services quality provided by PT Argatama Multy Agung. On the improvement phase Design Of Experiment (DOE) is used to find the machine configuration that can produce the best quality. From the research conducted, a significant increase of sigma is obtained. 
Aplikasi AHP dalam Menentukan Kandidat Gubernur DKI Jakarta 2012-2017 Jevi Rosta; Hendy Tannady
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2762

Abstract

July 11, 2012 was chosen as an appropriate day in constitution terms to hold the election of Jakarta’s regional head for the next five years. There are many assumptions and opinions from some people about who would be elected as the governor of Jakarta. A lot of criteria from the candidates of governor and vice governor can be the parameters to be the success key in becoming Jakarta’s number one man. This research is discussing about decision making methods from many options by using AHP (analytical hierarchy process) method. Tthe case model is the election of Jakarta’s governor. The research utilizes two comparative components namely Jakarta’s governor and candidate of vice governor, as well as five criteria such as issues about  flood, transportation, economic, public services and credibility. The result of this research is the candidate with number six that should be most chosen in the election.
Preferensi Konsumen pada Aktivitas Callback dan Telemarketing di Restoran Cepat Saji Rida Zuraida
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2766

Abstract

This paper is objected to proposed a model for delivery service at fast food restaurants to measure consumer’s preferences of callback and marketing activities. The model is developed using 4C concept (customer value, customer cost, customer convenience and customer communication). The concepts that used here are supported by previous researches on restaurant related to consumer behavior, and the theories of marketing activities including marketing and communications impact. For next steps, the measurement model should be implemented to see how far the reliability of the proposed model, and what improvements can be done in order to obtain a better model. The result can be used to develop strategies of callback and telemarketing activities for delivery service at fast food restaurant, which suit as as customer expectation and company’s resources.
Penerapan Sistem Personalisasi Akun pada Admisi Online Binus University Karto Iskandar; Jefriyanto Jefriyanto; Halena Giovanni; Candra Gunawan
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2767

Abstract

This research purpose is to make easy the registration process of new students by personalizing the account page on admission online. Therefore, each user can manage their own needs and recognize the steps that must be taken to be a BINUS student. Analyses are performed towards the current working system and issues related to the system. Further is performing finding references related to the problem through literature study. Then, creating a UML diagram of the system design, user interface and database. Next is the programming phase and evaluation of the application . The results obtained is an online admission application with a personalized login page. It can be used to make easy the registration of new student or related issue at the many insttutions of Binus. It is suggested to create the mobile version of online admission for the future development.
Sistem Informasi Pembelian, Persediaan, dan Penjualan untuk Apotek Lusiana Citra Dewi
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2769

Abstract

This study aims to create a system that can simplify common operational activities of pharmacy such as purchasing, inventory, and sales. The system is expected to improve manual processes of purchasing, inventory, and sales into a computerized ones. In addition, this system also provides convenience, accuracy, and speed for owner or management to access reports of purchase, inventory, and sales in real-time. The research methods used are literature studies, field studies, and the methods of analysis and design of object-oriented information system design language UML (Unified Modeling Language). Tthe result of this research is an information system of purchasing, inventory, and sales of medicines that may help pharmacies to get information quickly and accurately, and to help pharmacy operations to run more effectively and efficiently.

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