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Jurnal Elektronika dan Telekomunikasi
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 14118289     EISSN : 25279955     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering Engineering
Jurnal Elektronika dan Telekomunikasi (JET) is an open access, a peer-reviewed journal published by Research Center for Electronics and Telecommunication - Indonesian Institute of Sciences. We publish original research papers, review articles and case studies on the latest research and developments in the field of electronics, telecommunications, and microelectronics engineering. JET is published twice a year and uses double-blind peer review. It was first published in 2001.
Arjuna Subject : -
Articles 470 Documents
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Customer Decision Prediction Using Deep Neural Network on Telco Customer Churn Data Hiya Nalatissifa; Hilman Ferdinandus Pardede
Jurnal Elektronika dan Telekomunikasi Vol 21, No 2 (2021)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v21.122-127

Abstract

Customer churn is the most important problem in the business world, especially in the telecommunications industry, because it greatly influences company profits. Getting new customers for a company is much more difficult and expensive than retaining existing customers. Machine learning, part of data mining, is a sub-field of artificial intelligence widely used to make predictions, including predicting customer churn. Deep neural network (DNN) has been used for churn prediction, but selecting hyperparameters in modeling requires more time and effort, making the process more challenging for the researcher. Therefore, the purpose of this study is to propose a better architecture for the DNN algorithm by using a hard tuner to obtain more optimal hyperparameters. The tuning hyperparameter used is random search in determining the number of nodes in each hidden layer, dropout, and learning rate. In addition, this study also uses three variations of the number of hidden layers, two variations of the activation function, namely rectified linear unit (ReLu) and Sigmoid, then uses five variations of the optimizer (stochastic gradient descent (SGD), adaptive moment estimation (Adam), adaptive gradient algorithm (Adagrad), Adadelta, and root mean square propagation (RMSprop)). Experiments show that the DNN algorithm using hyperparameter tuning random search produces a performance value of 83.09 % accuracy using three hidden layers, the number of nodes in each hidden layer is [20, 35, 15], using the RMSprop optimizer, dropout 0.1, the learning rate is 0.01, with the fastest tuning time of 21 seconds. Better than modeling using k-nearest neighbor (K-NN), random forest (RF), and decision tree (DT) as comparison algorithms.
Fabrikasi Magnet MnZn Ferit dan Barium Ferit dari Limbah Pengelasan Ardita Septiani; Novrita Idayanti
Jurnal Elektronika dan Telekomunikasi Vol 15, No 1 (2015)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v15.14-17

Abstract

Pembuatan magnet lunak MnZn ferit dan magnet keras barium ferit telah dilakukan menggunakan bahan baku utama limbah pengelasan. Limbah pengelasan yang digunakan merupakan limbah dengan komposisi utama Fe dan O dengan Al dan Bi sebagai pengotor. Magnet dipabrikasi menggunakan metode metalurgi serbuk, yang diawali dengan penggilingan selama 6 jam untuk mendapatkan serbuk, dilanjutkan dengan pemanggangan pada 560 °C selama 1 jam untuk mendapatkan fasa hematit. Karakterisasi XRD (x-ray diffraction) menggunakan analisa Rietveld menunjukkan hematit 73,4% berat telah terbentuk setelah pemanggangan dengan fasa magnetik sebesar 26,6% berat. Serbuk setelah pemanggangan digunakan sebagai bahan baku magnet ferit dengan ditambahkan senyawa penyusun kation dan aditif. Perhitungan stoikiometri bahan baku yang digunakan pada penelitian ini didasarkan pada rumus kimia Mn0,8Zn0,2Fe2O4 dan BaFe12O19. Melalui karakterisasi menggunakan Permagraph, pembuatan magnet menggunakan limbah pengelasan didapatkan sifat magnetik untuk MnZn ferit adalah induksi remanen 0,83 kG dengan koersifitas 0,084 kOe dan untuk barium ferit memiliki induksi remanen 1,22 kG dengan koersifitas 2,996 kOe.
Design of Asymmetric Parallel-Cascaded Micro-Ring Resonator Using Transfer Matrix and Signal Flow-Graph Methods Dadin Mahmudin; Pamungkas Daud; Yusuf Nur Wijayanto
Jurnal Elektronika dan Telekomunikasi Vol 13, No 1 (2013)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v13.28-32

Abstract

Asymmetric parallel-cascaded micro-ring resonator (APCMR) is proposed. The proposed device is composed of two or more micro-ring-resonators with different diameter. The proposed device is designed using transfer matrix combined with signal flow graph methods. The designed device with crosstalk less than and equal -10 dB can be obtained by setting coupling coefficient. The proposed device can be used for optical filters and sensors.
Back Cover Vol. 19 No. 2 Chaeriah Bin Ali Wael
Jurnal Elektronika dan Telekomunikasi Vol 19, No 2 (2019)
Publisher : LIPI Press

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Abstract

Design and Realization of FIR Filter for Inter Satellite Link at 50-90 MHZ Frequency using FPGA Yuyu Wahyu; Ken Paramayudha; Lutfi Jamil Setiawan; Heroe Wijanto; M. Shiddiq S.H
Jurnal Elektronika dan Telekomunikasi Vol 16, No 1 (2016)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v16.15-19

Abstract

In this paper, design and realization of FIR filter with a bandwidth of 40 MHz at 50-90 MHz frequency has been proposed. The design was destined to be implemented on the Inter Satellite Links (ISL). This kind of filter had been selected due to a need in linear phase responseon the ISL data communication. Equiripple method was used to design the filter becauseof its reliability in minimizing the magnitude errors. The design of this FIR filter was conducted with theoretical calculation and simulation using the R2012b Matlab. For the implementation, FPGA was used with a VHDL as the programming language with a help of Xilinx ISE Design Suite 14.5. Simulation results in Matlab and Simulink indicated that the filter design could be well implemented on ISL at frequency of 50 MHz - 90 MHz with stopband of 60 db. The phase responseresult of the realized design is quite linear so that the filter is suitable for data communication on the ISL.
Front Cover Vol 14 No 1 Tajul Miftahushudur
Jurnal Elektronika dan Telekomunikasi Vol 14, No 1 (2014)
Publisher : LIPI Press

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Vol. 03 No. 2 Jurnal Elektronika dan Telekomunikasi
Jurnal Elektronika dan Telekomunikasi Vol 01-12 (Printed Issues)
Publisher : LIPI Press

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Abstract

Table of Content:  Pengukuran Curah Hujan Berbasis Scada  [1 - 6]  ↠ Iwan Muhammad Erwin, lndra Sakti, Yuyu WahyuPenerima Pengendalian Stepper Motor Jarak Jauh  [8 - 11]  ↠ Indra Sakti, Iwan Muhammad Erwin, Yudi Yulius MaulanaAnalisa Aplikasi Komunikasi Data pada Laboratorium Kualitas Udara Bergerak  [12 - 16]  ↠ Ade Cahyana, Dicky RiyantoAIGalnP/GaAs-LED (Light Emitting Diode): Sumber Cahaya Alternatif Pengganti Lampu Pijar?  [17 - 21]  ↠ Jumril Yunas, Slamat Widodo, Topik Teguh EstuProses Pengacakan pada Rangkaian Codec dalam Sistem Komunikasi Radio Digital [22 - 25]  ↠ Robeth V.M, Purwoko Adhi Struktur Mikro dan Sifat Magnetik Barium Heksaferit Hasil Pemaduan Mekanik Oksida CRM  [26 - 31]  ↠ Efendi, Dedi, N. Idayanti, WiryolukitoPemrograman W670 Laser Trim System Berbasis Bahasa C untuk Pemotongan Wafer Silikon  [32 - 36]  ↠ Nana Subarna, Soegijardjo Soegijoko, Gandhi Sugandi, Goib WitantoRadio-Frequency Identification (RFID) dengan Active Integrated Antennas (AlAs)  [37 - 42]  ↠ Yuyu Wahyu, Denis Rahadian, Rustamaji
Preface Vol. 19 No. 1 Natalita Maulani Nursam
Jurnal Elektronika dan Telekomunikasi Vol 19, No 1 (2019)
Publisher : LIPI Press

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Back Cover Vol. 17 No. 2 Tajul Miftahushudur
Jurnal Elektronika dan Telekomunikasi Vol 17, No 2 (2017)
Publisher : LIPI Press

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Front Cover Vol 15 No 1 Chaeriah Bin Ali Wael
Jurnal Elektronika dan Telekomunikasi Vol 15, No 1 (2015)
Publisher : LIPI Press

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Page 29 of 47 | Total Record : 470

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