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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 1,585 Documents
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Aplikasi Konsep Personal Knowledge Management (PKM) dengan Social Web Putri, Nuril Kusumawardhani Soeprapto
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2424

Abstract

This study discusses the impact of social media to the development of personal knowledge management (PKM). Here the author describeS the factual condition of the company that useS social media as a means of personal knowledge management. Furthermore, these interaction patterns have significant impact on the organization. The purpose of this article is to analyze the application of personal knowledge managementconcept, combined with the social media concept that focuses on social networks with the consideration that they are widespreadly used by the public. Plus the emergence of social networking sites are increasingly new added value to the development of social media. The method used is literature study obtained from the online journals, articles and text books. The result of this study is expected to expand the use of social networking as a means of personal knowledge management in the organization.
Implementasi Knowledge Management pada KLPM-PTS: Pembentukan Sharing Culture antar Anggota KLPM-PTS di Indonesia Maryani, Maryani
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2393

Abstract

This paper is an idea to implement a knowledge management system for a real action for optimization efforts of private higher institutions due to the development of national human resources. Knowledge management is a technique of organizing knowledge within an organization. The goal is to accelerate the innovation by improving the effectiveness and efficiency of knowledge absorption through knowledge sharing process. Four activities underlying knowledge management system are using knowledge, finding knowledge, creating knowledge and packaging knowledge. These processes required to convert tacit knowledge into explicit knowledge that can be transferred to other people. Regarding to the background of the Consortium members who come from all corners of the archipelago, a web based knowledge management system is the best option. The system is built on many aspects, but can do a variety of simplifications that can be realized in the form of knowledge management portal. To make this system developed well, some attitudes need to be cultivated to create, capture, capture, store, process and disseminate knowledge.
Manajemen Risiko Teknologi Informasi: Studi Kasus pada Perusahaan Jasa Viyanto, Achmad Reza; Latuihamallo, Okhran Steve; Tua, Franky Mangihut; Gui, Anderes; Suryanto, Suryanto
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.v4i1.2682

Abstract

The purpose of this study is to identify and quantify risks that may occur any time in the application of information technology in a company, as well as to provide information on the risks associated with the security of information technology system of the company. The methods used are: data collection and analysis techniques. Data collection includes: literature and field studies, in which the field study is conducted by interview and observation. Analytical technique used in the measurement of risk is OCTAVE-S. The results found the risks associated with security management, contingency planning, vulnerability management, as well as design and security architecture. It iscocluded from this this study that there are still a lot of risks that can threaten companies such as lack of contingency and disaster recovery plan.
Pemanfaatan Web Application Dalam Peningkatan Efisiensi dan Efektifitas Kerja Administrasi (Studi Kasus: Pemesanan dan Pembuatan Surat Keterangan) Reina, Reina
ComTech: Computer, Mathematics and Engineering Applications Vol 1, No 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2568

Abstract

The purpose of this study was to determine the extent to which the use of a web application to improve efficiency and effectiveness of administrative work. The research method used consisted of the analysis phase, study libraries to support application design and data collection based on observations. Results of evaluation and observation data before and after implementation of the system showed that the use of a web application to improve efficiency and effectiveness of administrative work, e.g. by decreasing the length of time the making of letter, an increase in the percentage of the making of timeliness, accuracy of data validation and provide facilities for students in order letter as well as convenience for staff in the making of letter. Another thing is the ease in monitoring the accuracy of the making of letter. 
Analisis Seleksi Citra Mirip dengan Memanfaatkan Konsep CBIR dan Algoritma Threshold Rangkuti, Abdul Haris
ComTech: Computer, Mathematics and Engineering Applications Vol 2, No 2 (2011): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v2i2.2819

Abstract

Content base image retrieval (CBIR) is the concept of image retrieval by comparing the existing image on the sample to that of the database (query by example). CBIR process based on color is carried out using adaptive color histogram concept, while one based on shape is performed using moment concept. Following up the process results, a sorting process is done based on a threshold value of the sample image through the utilization threshold algorithm. The image displayed is be sorted from the one that is nearly similar to the query image (example) to the resemblance of the lowest (aggregation value). The threshold value of the query image used as reference is compared with the aggregation value of the image database. If the comparison in the search for similarities by using the concept of fuzzy logic approaches 1, the comparison between the threshold value and the aggregation value is almost the same. Otherwise, if it reaches 0, the comparison results in a lot of differences. 
Indonesian News Harvester and Recommender System Wibowo, Adi; Intan, Rolly; Valentina, Nydia
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 3 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i3.3912

Abstract

To provide convenience for the user that frequently read the news, a system to gather, classify, and provide news from several news websites in one place was needed. This system utilized a recommender system to provide only relevant news to the user. This research proposed a system architecture that used vector space model, and Rocchio relevance feedback to provide specific news recommendation to user’s feedback. The results are that the proposed system architecture can achieve the goal by using five levels of feedback from the user. However, the time needed to gather news is increasing exponentially in line with the number of terms gathered from articles.
Kajian Ios Apps dalam Peningkatan Produktifitas Perancangan Arsitektur Tomasowa, Riva
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 2 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i2.2295

Abstract

The use of mobile device with sophisticated hardware and smart apps is a robust tool in terms of improving productivity nowadays, as well as to the dynamic architecture design process. The communication is not merely limited to formal audio and visual, but also bridges the data synchronisation, time and distance. However, this novel technology is not fully adopted to support the design process. This paper describes the built iOS apps which designed to aid the architects and then compares their potential on each design phases. Discussion of the analysis based on the design flow of the feasibility study (feasibility study) to facilitymanagement - FM, which discusses the ability of CAAD in the design stage. In brief, the research shows the absence of rigid framework for interoperability that could accommodate two ways information exchange between apps and desktop applications.
Implementasi Data Warehouse dan Data Mining: Studi Kasus Analisis Peminatan Studi Siswa Miranda, Eka
ComTech: Computer, Mathematics and Engineering Applications Vol 2, No 1 (2011): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v2i1.2705

Abstract

This paper discusses the implementation of data mining and their role in helping decision-making related to students’ specialization program selection. Currently, the university uses a database to store records of transactions which can not directly be used to assist analysis and decision making. Based on these issues then made the data warehouse design used to store large amounts of data and also has the potential to gain new data distribution perspectives and allows to answer the ad hoc question as well as to perform data analysis. The method used consists of: record analysis related to students’ academic achievement, designing data warehouse and data mining. The paper’s results are in a form of data warehouse and data mining design and its implementation with the classification techniques and association rules. From these results can be seen the students’ tendency and pattern background in choosing the specialization, to help them make decisions. 
Kajian dan Implementasi Real Time Operating System pada Single Board Computer Berbasis Arm A, Wiedjaja; M, Handi; L, Jonathan; Christian, Benyamin; Kristofel, Luis
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.v5i1.2591

Abstract

Operating System is an important software in computer system. For personal and office use the operating system is sufficient. However, to critical mission applications such as nuclear power plants and braking system on the car (auto braking system) which need a high level of reliability, it requires operating system which operates in real time. The study aims to assess the implementation of the Linux-based operating system on a Single Board Computer (SBC) ARM-based, namely Pandaboard ES with the Dual-core ARM Cortex-A9, TI OMAP 4460 type. Research was conducted by the method of implementation of the General Purpose OS Ubuntu 12:04 OMAP4-armhf-RTOS and Linux 3.4.0-rt17 + on PandaBoard ES. Then research compared the latency value of each OS on no-load and with full-load condition. The results obtained show the maximum latency value of RTOS on full load condition is at 45 uS, much smaller than the maximum value of GPOS at full-load at 17.712 uS. The lower value of latency demontrates that the RTOS has ability to run the process in a certain period of time much better than the GPOS.
Performance Improvement with Web Based Database on Library Information System of Smk Yadika 5 Nusantara, Pualam Dipa
ComTech: Computer, Mathematics and Engineering Applications Vol 6, No 4 (2015): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v6i4.2183

Abstract

The difficulty in managing the data of books collection in the library is a problem that is often faced by the librarian that effect the quality of service. Arrangement and recording a collection of books in the file system of separate applications Word and Excel, as well as transaction handling borrowing and returning books, therehas been no integrated records. Library system can manage the book collection. This system can reduce the problems often experienced by library staff when serving students in borrowing books. There so frequent difficulty in managing the books that still in borrowed state. This system will also record a collection of late fees or lost library conducted by students (borrowers). The conclusion of this study is library performance can be better with the library system using web database.

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