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Journal of Computer System and Informatics (JoSYC)
Published by Forum Kerjasama Pendidikan TInggi
ISSN : 27147150     EISSN : 27148912     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Industrial & Manufacturing Engineering
Journal of Computer System and Informatics (JoSYC) covers the whole spectrum of Artificial Inteligent, Computer System, Informatics Technique which includes, but is not limited to: Soft Computing, Distributed Intelligent Systems, Database Management and Information Retrieval, Evolutionary computation and DNA/cellular/molecular computing, Fault detection, Green and Renewable Energy Systems, Human Interface, Human-Computer Interaction, Human Information Processing Hybrid and Distributed Algorithms, High Performance Computing, Information storage, Security, integrity, privacy and trust, Image and Speech Signal Processing, Knowledge Based Systems, Knowledge Networks, Multimedia and Applications, Networked Control Systems, Natural Language Processing Pattern Classification, Speech recognition and synthesis, Robotic Intelligence, Robustness Analysis, Social Intelligence, Ubiquitous, Grid and high performance computing, Virtual Reality in Engineering Applications Web and mobile Intelligence, Big Data
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 7 Documents
 1 
Search results for , issue "Vol 2 No 4 (2021): Agustus 2021" : 7 Documents clear
Rancang Bangun Sistem Penjualan Furniture Menggunakan Metode Exponential Smoothing Ambarwati Ambarwati
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.816

Abstract

Furniture Agung is an MSME engaged in furniture located in the district of Semarang. MSMEs are still conducting data collection, processing and transactions that are carried out manually. This process becomes ineffective and inefficient because errors can occur in recording and data can be lost. This research aims to design an information system for furniture sales and sales forecasting using the exponential smoothing method in September 2020 to May 2021. Based on the results of sales analysis testing using the exponential smoothing method using alpha 0.2 in May 2021, the calculation of forecasting demand for furniture products as many as 41 pieces. The results of calculations using mean square error (MSE) alpha 0.2 to predict the error rate of furniture demand are: 69.22 = 69. This system research uses a codeigniter framework, and MySql as a database server. The design of the web-based system is expected to make it easier for MSMEs to conduct digital transactions and manage goods data so that data reports can be known easily, quickly, accurately, and data is stored safely
Implementasi Pisanc Chiper Untuk Autentikasi Voice Chat Muhammad Fajar Rizky; Muhammad Syahrizal; Soeb Aripin
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.819

Abstract

In securing voice messages, information sent through the internet network must be authenticated for its authenticity, data content, delivery time, and so on. To prevent data manipulation by irresponsible parties, the creation of a data leak that has a negative impact. The occurrence of data leaks that most users are still not aware of. This can happen due to the lack of security of the message itself which results in problems that arise and also losses by certain authoritarian parties. The solution in securing voice messages using modern cryptographic techniques that have been combined with NRZI encoding and the Feistel network by Pisanc Cipher, is a way to maintain the authenticity and accuracy of data or authentication in voice messages. It is useful to look for the characteristics of good encryption, namely confusion and diffusion. This results in a higher level of security. By using the Pisanc Cipher method to secure voice messages, it can generate security and authenticate data to prevent data leakage. In addition, another benefit of using the Pisanc Cipher method is to maintain the authenticity of voice messages.
Penerapan Metode Inner Product Pada Aplikasi E-Diagnosa Agranulositosis Enrio Situmeang
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.823

Abstract

An expert system (expert system) is a system that seeks to adopt human knowledge to computers, so that computers can solve problems like experts. The large number of people affected by orthopedic disease and the lack of orthopedic specialists make it difficult for orthopedic specialists to handle a large number of patients. One way to solve this problem is to create an expert system for diagnosing orthopedic diseases. Orthopedic disease diagnosis expert systems can help experts as reliable assistants with the aim of helping patients to continue to receive treatment even though experts are not available. This expert system can certainly solve a problem about Otopaedics by imitating the workings of an Orthopedic specialist. The inner product method is used for initial diagnosis by inputting the patient's symptoms. The result of the inner product process is taken as the highest value as the output in the form of the name of the disease and the type of patient treatment. If the highest value generated from the inner product process is more than one and the symptoms of the disease have a quantity and time value, it will proceed to further diagnosis using the certainty factor method, by inputting the length of time for each symptom, or the quantity of symptoms to determine the value of confidence in a particular symptom. disease based on the duration of each symptom and the quantity of these symptoms.
Pengaruh Point Vuforia Object Scanner Terhadap Karakteristik 3D Object untuk Menampilkan Informasi Berbasis Augmented Reality Putri Mandarani; Agung Putra Wilis; Ganda Yoga Swara
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.826

Abstract

Augmented Reality (AR) applications are one of the current mobile app trends. Its ability to display information as if to make the user merge with the information provided. The specialty of the application is in the marker. One marker that is in great demand is known as markerless, such as 3D Object Tracking. In making this 3D Object-based AR application, one must pass a stage where a real object is taken at points or known as points to be used as markers. The application used at this stage of making markers is known as the vuforia object scanner. From the experience of making AR applications, it was found conditions where markers with a large number of points were not able to display information properly, a small number of points were able to display information well and sometimes the two conditions were opposite or comparable, i.e. a lot of points makes a good marker and a few points make a bad marker. This inconsistent condition becomes a problem in this study. The test results show that the points do not affect the marker's ability to display information, but are influenced by the characteristics of the object used as the marker. Tests conducted on randomly selected objects resulted in 2 parameters to be tested in this study, namely the texture and pattern of the object. Markers with good quality to be used as markers for 3D objects are markers with a hard texture, with a detection angle of 90° and 135° and with a regular pattern
Rancang Bangun Inverter Mengubah Arus Listrik DC ke AC Berbasis Arduino Uno Risky Binsar Pandapotan Simanjuntak; M Safii; Fitri Anggraini; Sumarno Sumarno; Indra Gunawan
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.838

Abstract

At this time electrical energy is needed in terms of helping humans in carrying out their activities both in doing their daily work. In this case, it is impossible for there to be problems in periodic blackouts to save electricity resources carried out by PLN and to disrupt all human activities starting from the tools that require electrical energy. For this reason, it is necessary to anticipate by making an inverter which aims to make all the activities they do using electrical energy are not disturbed. This tool is assisted by using Arduino Uno as the main ingredient which later DC electrical energy, namely the battery, will convert electrical energy that we usually use AC electrical energy
Pengembangan Teknologi E-Marketplace Hasil Bumi di Desa Tumbang Manjul Dendi Sugito; Lukman Bachtiar
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.850

Abstract

The Tumbang Manjul community is a resident in remote areas, located in the Seruyan Regency, Seruyan Hulu District with abundant natural resources. With the efforts carried out by the community, the business has a serious enough problem to pay attention to, seeing it is less than optimal, it is necessary to have a solution, so that consumers from outside the region can also review the produce from the business in the Tumbang Manjul Community. With the existence of an E-marketplace information system, marketing carried out by sellers can reach a wider area, especially Central Kalimantan, because buyers who come can come from various regions further afield
E-Marketplace dengan Metode Upselling Study Kasus Toko Bento Sport Berbasis Web Fajar Diski Saputro; Dwi Tjahjo Seabtian
Journal of Computer System and Informatics (JoSYC) Vol 2 No 4 (2021): Agustus 2021
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v2i4.849

Abstract

Online store or E-commerce is an online business that is growing rapidly at this time. Shoppers can save time and effort by shopping online through e-commerce. With the help of e-commerce, sales are not limited by place and are managed globally. in this topic, BENTO SPORT is a shop that specializes in sports equipment and supplies. In sales, many buyers have difficulty buying products at the BENTO SPORT Shop. From these questions, an online website-based sales application solution was made. With an online sales application, buyers do not have to come back and are not limited by place and time

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