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All Journal Journal of Informatics and Information Security
Henny Leidiyana
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Computer Science & IT

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Aplikasi Kehadiran Karyawan Berbasis Android Menggunakan QR Code Scanning dan Location Based Service Iskandar Yusuf; Henny Leidiyana
Journal of Informatic and Information Security Vol. 2 No. 1 (2021): Juni 2021
Publisher : Program Studi Informatika, Fakultas Ilmu Komputer Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/e2h00870

Abstract

Employee attendance is an administrative process that is carried out every day. Use of a manual system for events prone to damage or loss. Not to mention employees who forget attendance records, which will cause delays in the flow of employee attendance information. As a solution to the existing problems is by designing an application to make presence using Android-based QR Code Scanning and Location-Based Services (LBS). QR Code technology is very efficient because the code can be read in a very short time using a smartphone while the Location Based Service (LBS) is to prevent employees from making presence outside the area determined by the company. The design of this application produces a paperless system and prevents manipulation of attendance data because in this application it is implemented that one employee only asks for one device ID or smartphone IMEI
Penerapan Soft Sistem Methodelogy Pada Pengembangan Sistem Informasi Akademik (Studi Kasus di SMKN 6 Kota Bekasi) Ani Yoraeni; Henny Leidiyana
Journal of Informatic and Information Security Vol. 2 No. 1 (2021): Juni 2021
Publisher : Program Studi Informatika, Fakultas Ilmu Komputer Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/y89ng241

Abstract

Academic information systems are important in teaching and learning activities, this is supported by adequate facilities and infrastructure. To support this, a system must be made that is able to assist in the teaching and learning process, namely by developing an academic information system. This development system uses the social system methodology method with the aim of helping the school's academic field achieve its goals and facilitate the teaching and learning process. This approach is designed using CATWOE analysis with components, namely customers, actors, the transformation process, world view, and the environment. The results of this study are able to answer the school's need for an effective and efficient system so that it can improve the performance of all school goals.
Penerapan Arduino Mega 2560 pada Mesin Cetak Tiga Dimensi Indrawan Bagus Pertiaz; Henny Leidiyana
Journal of Informatic and Information Security Vol. 2 No. 2 (2021): Desember 2021
Publisher : Program Studi Informatika, Fakultas Ilmu Komputer Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/x2ekch09

Abstract

The design and design of this three-dimensional printing machine concentrates on robotics enthusiasts who are very difficult to find prototype machine covers. The purpose of this research is to create a 3D printer machine design for users in order to shorten the time of making prototypes and be faster and more precise to make a container for robotic prototype needs. The supporting equipment used in the manufacture of the 3-dimensional printing machine in this research is Arduino Mega 2560, Ramps 1.4, A4988 Stepper Motor Driver, ESP8266 WIFI Module, HotEnd, HeatBed, Stepper Motor. The author conducted a test test of several different types of filaments. The research method used is an experimental quantitative method by providing input from the designed tool and then observing the results of the output. The stages of this research are analyzing the problem, defining problems and needs, designing, and measuring the level of accuracy and strength of the type of material used for printing between PLA (Polylactic Acid) filaments and ABS (Acrylonitrile Butadiene Styrene) filaments. From the two results, PLA requires a hotend temperature of 195 degrees Celsius with a heatbed temperature of 65 degrees Celsius, while ABS requires a hotend temperature of 250 degrees Celsius with a heatbed temperature of 110 degrees Celsius and it can be concluded that the strength level of ABS is stronger than PLA.
Implementasi Metode SVM untuk Klasifikasi Bunga dengan Ekstraksi Fitur Histogram of Gradient (HOG) Henny Leidiyana; Warta, Joni
Journal of Informatic and Information Security Vol. 3 No. 1 (2022): Juni 2022
Publisher : Program Studi Informatika, Fakultas Ilmu Komputer Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/f3cgcv61

Abstract

Feature extraction techniques are applied to obtain features that will be useful in classifying and recognizing images. Feature extraction techniques are very helpful in various image processing applications. Many studies show the effectiveness of feature extraction before classification. There is also research showing that a feature extraction method may be good for certain classification approaches but may also be preferable. The impact of the sample and its size can also determine the results of the application of feature extraction techniques in the classification process. In this study, the author aims to prove the effectiveness of the application of the HOG feature extraction technique on the classification with the SVM method on flower images. The experiment was carried out on two groups of images, where the first group was image classes with relatively uniform colors and shapes, both in shape and color. and the second group is image classes with relatively different colors and shapes in the same class. The results showed that image datasets with relatively uniform colors and shapes do not require the application of any feature extraction to produce high accuracy. For classification by performing feature extraction in this study it gives different results for the two interest groups.
Co-Authors Indrawan Bagus Pertiaz Iskandar Yusuf Joniwarta Yoraeni, Ani