scholarly journals Prediksi Hasil Ujian Kompetensi Mahasiswa Program Profesi Dokter (UKMPPD) dengan Pendekatan ANFIS

2018 ◽  
Vol 2 (2) ◽  
pp. 554-559
Author(s):  
Fajri Marindra Siregar ◽  
Gunadi Widi Nurcahyo ◽  
Sarjon Defit
Keyword(s):  
Membership Function ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Percentage Error ◽  
Inference System ◽  
Average Percentage ◽  
Neuro Fuzzy ◽  
Average Percentage Error

Tujuan utama dari penelitian ini adalah untuk memprediksi hasil ujian kompetensi mahasiswa program profesi dokter (UKMPPD) menggunakan metode Adaptive Neuro Fuzzy Inference System (ANFIS). Data didapatkan dari database mahasiswa Fakultas Kedokteran Universitas Riau tahun 2015 yang berjumlah 170 data. Variabel input yang digunakan meliputi status kepesertaan, lama studi, dan Indeks Prestasi Kumulatif. Selanjutnya data dianalisis menggunakan software MATLAB dengan pengaturan jumlah membership  function 2 2 2 dan type membership funtion gbell. Hasil penelitian menunjukkan bahwa metode ANFIS mampu memprediksi hasil UKMPPD dengan nilai Mean Average Percentage Error (MAPE) sebesar 0,07%, minimal 0,00% dan maximal 0,44%.

scholarly journals Adaptive neuro-fuzzy inference system for temperature and humidity profile retrieval from microwave radiometer observations

2015 ◽  
Vol 8 (1) ◽  
pp. 369-384 ◽  
Author(s):  
K. Ramesh ◽  
A. P. Kesarkar ◽  
J. Bhate ◽  
M. Venkat Ratnam ◽  
A. Jayaraman
Keyword(s):  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Microwave Radiometer ◽  
Percentage Error ◽  
Computational Techniques ◽  
Temperature Profiles ◽  
Inference System ◽  
Neuro Fuzzy ◽  
Temperature And Humidity ◽  
Rainy Days

Abstract. The retrieval of accurate profiles of temperature and water vapour is important for the study of atmospheric convection. Recent development in computational techniques motivated us to use adaptive techniques in the retrieval algorithms. In this work, we have used an adaptive neuro-fuzzy inference system (ANFIS) to retrieve profiles of temperature and humidity up to 10 km over the tropical station Gadanki (13.5° N, 79.2° E), India. ANFIS is trained by using observations of temperature and humidity measurements by co-located Meisei GPS radiosonde (henceforth referred to as radiosonde) and microwave brightness temperatures observed by radiometrics multichannel microwave radiometer MP3000 (MWR). ANFIS is trained by considering these observations during rainy and non-rainy days (ANFIS(RD + NRD)) and during non-rainy days only (ANFIS(NRD)). The comparison of ANFIS(RD + NRD) and ANFIS(NRD) profiles with independent radiosonde observations and profiles retrieved using multivariate linear regression (MVLR: RD + NRD and NRD) and artificial neural network (ANN) indicated that the errors in the ANFIS(RD + NRD) are less compared to other retrieval methods. The Pearson product movement correlation coefficient (r) between retrieved and observed profiles is more than 92% for temperature profiles for all techniques and more than 99% for the ANFIS(RD + NRD) technique Therefore this new techniques is relatively better for the retrieval of temperature profiles. The comparison of bias, mean absolute error (MAE), RMSE and symmetric mean absolute percentage error (SMAPE) of retrieved temperature and relative humidity (RH) profiles using ANN and ANFIS also indicated that profiles retrieved using ANFIS(RD + NRD) are significantly better compared to the ANN technique. The analysis of profiles concludes that retrieved profiles using ANFIS techniques have improved the temperature retrievals substantially; however, the retrieval of RH by all techniques considered in this paper (ANN, MVLR and ANFIS) has limited success.

scholarly journals PREDIKSI TINGGI MUKA AIR BENDUNGAN RIAM KANAN MENGGUNAKAN ADAPTIVE NEURO FUZZY INFERENCE SYSTEM

2018 ◽  
Vol 9 (1) ◽  
pp. 11
Author(s):  
Yusri Ikhwani
Keyword(s):  
Membership Function ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Inference System ◽  
Neuro Fuzzy

Bendungan riam kanan yang berada kabupaten banjar ialah salah satu waduk terbesar di kalimantan selatan yang ada di aranio, kabupaten banjar. Waduk buatan yang dalam pembangunannya memakan waktu selama 10 tahun ini dibangun membendung 8 sungai yang bersumber dari Pegunungan Meratus. Tujuan utama dibangunnya waduk riam kanan adalah untuk membangun pembangkit listrik tenaga air untuk daerah kalimantan selatan dan sekitarnya.Tujuan penelitian ini ialah untuk memprediksi tinggi muka air bendungan riam kanan menggunakan metode Adaptive Neuro Fuzzy Inference System (ANFIS) agar dapat bermanfaat dalam kebijakan strategis ketahanan energi khususnya ketahanan pangan dan energi listrik, khususnya ketersediaan air untuk saluran irigasi.Perkiraan prediksi ini menggunakan data tinggi muka air bendungan riam kanan dari tahun 2009 sampai dengan 2015 yang didapatkan dari PLTU riam kanan provinsi kalimantan selatan. Prosedur memprediksi diawali dengan melakukan proses pembagian data, yaitu menjadi data pelatihan dan data pengujian. Setelah itu dilakukan penentuan variabel-variabel pendukung input yang memberikan korelasi cukup signifikan terhadap variabel output. Serelah itu melakukan proses pengujian dengan membandingkan 2 membership function untuk menentukan yang mana memiliki tingkat akurasi yang baik dan nilai error yang rendah dalam memprediksi tinggi muka air bendungan riam kanan.Hasilnya ialah prediksi tinggi muka air bendungan riam kanan menggunakan metode Adaptive Neuro Fuzzy Inference System (ANFIS) dengan membandingkan 2 membership function dengan tingkat keakuratan menghasilkan nilai RMSE 0,010065 pada membership function Bell Kata kunci: bendungan riam kanan, anfis, prediksi, tinggi muka air, membership fungtion

scholarly journals Rainfall Forecasting in Banyuwangi Using Adaptive Neuro Fuzzy Inference System

2017 ◽  
Vol 1 (2) ◽  
pp. 65 ◽  
Author(s):  
Gusti Ahmad Fanshuri Alfarisy ◽  
Wayan Firdaus Mahmudy
Keyword(s):  
Membership Function ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Hybrid Learning ◽  
Learning Method ◽  
Rainfall Forecasting ◽  
Inference System ◽  
Previous Event ◽  
Neuro Fuzzy ◽  
High Prediction

Rainfall forcasting is a non-linear forecasting process that varies according to area and strongly influenced by climate change. It is a difficult process due to complexity of rainfall trend in the previous event and the popularity of Adaptive Neuro Fuzzy Inference System (ANFIS) with hybrid learning method give high prediction for rainfall as a forecasting model. Thus, in this study we investigate the efficient membership function of ANFIS for predicting rainfall in Banyuwangi, Indonesia. The number of different membership functions that use hybrid learning method is compared. The validation process shows that 3 or 4 membership function gives minimum RMSE results that use temperature, wind speed and relative humidity as parameters.

scholarly journals Detection of waterborne bacteria using Adaptive Neuro-Fuzzy Inference System

2020 ◽  
Vol 158 ◽  
pp. 05002
Author(s):  
Farhan Mohammad Khan ◽  
Smriti Sridhar ◽  
Rajiv Gupta
Keyword(s):  
Water Quality ◽  
Membership Function ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Quality Analysis ◽  
Hybrid Technique ◽  
Membership Functions ◽  
Inference System ◽  
Neuro Fuzzy ◽  
Soft Computing Techniques

The detection of waterborne bacteria is crucial to prevent health risks. Current research uses soft computing techniques based on Artificial Neural Networks (ANN) for the detection of bacterial pollution in water. The limitation of only relying on sensor-based water quality analysis for detection can be prone to human errors. Hence, there is a need to automate the process of real-time bacterial monitoring for minimizing the error, as mentioned above. To address this issue, we implement an automated process of water-borne bacterial detection using a hybrid technique called Adaptive Neuro-fuzzy Inference System (ANFIS), that integrates the advantage of learning in an ANN and a set of fuzzy if-then rules with appropriate membership functions. The experimental data as the input to the ANFIS model is obtained from the open-sourced dataset of government of India data platform, having 1992 experimental laboratory results from the years 2003-2014. We have included the following water quality parameters: Temperature, Dissolved Oxygen (DO), pH, Electrical conductivity, Biochemical oxygen demand (BOD) as the significant factors in the detection and existence of bacteria. The membership function changes automatically with every iteration during training of the system. The goal of the study is to compare the results obtained from the three membership functions of ANFIS- Triangle, Trapezoidal, and Bell-shaped with 35 = 243 fuzzy set rules. The results show that ANFIS with generalized bell-shaped membership function is best with its average error 0.00619 at epoch 100.

APLIKASI SISTEM CERDAS UNTUK PREDIKSI ENERGI LISTRIK PEMAKAIAN SENDIRI DI PT INDONESIA POWER SUB UNIT PLTA KABUPATEN WONOGIRI

2017 ◽  
Vol 8 (2) ◽  
pp. 489
Author(s):  
Herliyani Hasanah ◽  
Nurmalitasari Nurmalitasari
Keyword(s):  
Fuzzy Inference System ◽  
Input Data ◽  
Fuzzy Inference ◽  
Percentage Error ◽  
Inference System ◽  
Fuzzy C Means ◽  
Neuro Fuzzy ◽  
Fuzzy Input

Kebutuhan akan energi listrik menjadi kebutuhan primer nasional. Dalam keberlangsungan proses produksi energi listrik pada pembangkitan – pembangkitan diperlukan energi listrik untuk pemakaian sendiri. Dalam penelitian ini dibangun sebuah aplikasi sistem cerdas untuk memprediksi energi listrik pemakaian sendiri di PT Indonesia Power sub unit PLTA Wonogiri. Pada penelitian ini menggunakan 2 kelompok input, yaitu input FIS (Fuzzy Inference System) dan input pada NN (Neuro Fuzzy). Input data  merupakan data produksi harian energi listrik di PLTA Wonogiri selama kurun waktu 2010 – 2016. Variabel data yang digunakan dalam penelitian ini adalah data produksi listrik untuk pemakaian PLTA Wonogiri adalah energi listrik yang dihasilkan PLTA Wonogiri dengan satuan KwH (f), elevasi muka air waduk dengan satuan meter (a1) dan debit air yang masuk ke turbin dengan satuan /detik (a2).  Output yang diperoleh adalah pusat centroid (m), derajat keanggotaan (mf), bobot (w) dan konsekuen parameter ( c ). Dari hasil pengujian diperoleh keluaran dengan performansi yang optimal pada saat Fuzzy C Means 2 kelas dengan parameter laju pembelajaran 0.4, momentum 0.6 dengan bessar Mean Percentage Error 0.377970875.  Kata kunci:  prediksi, pemakaian sendiri, energi listrik, fuzzy inference system, neuro fuzzy

scholarly journals Penentuan Keputusan Pemberian Pinjaman Kredit Usaha Rakyat Menggunakan Metode Adaptive Neuro Fuzzy Inference System (Studi Kasus: BRI Unit A. Yani Bontang)

2020 ◽  
Vol 15 (2) ◽  
pp. 66
Author(s):  
Wahyu Dyan Permana ◽  
Indah Fitri Astuti ◽  
Heliza Rahmania Hatta
Keyword(s):  
Soft Computing ◽  
Membership Function ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Inference System ◽  
Neuro Fuzzy

Kredit Usaha Rakyat (KUR) merupakan program pemerintah yang termasuk dalam kelompok program penanggulangan kemiskinan berbasis pemberdayaan usaha ekonomi mikro dan kecil. Bank Rakyat Indonesia (BRI) unit A.Yani Bontang merupakan salah satu bank penyedia pemberian modal KUR yang pada 1 tahun terakhir kredit macet sebesar 1.2 % dari total pinjaman yang didistribusikan. Sistem Pendukung Keputusan (SPK) berbasis soft computing metode ANFIS dapat membantu masalah pemberian pinjaman dengan memberikan alternatif keputusan yang dapat membantu mengefesienkan waktu dalam pengambilan keputusan oleh bank. ANFIS merupakan sistem hybrid yang menggabungkan kelebihan antara sistem fuzzy dan jaringan syaraf tiruan. Variabel input yang digunakan adalah penghasilan, tempat tinggal, jumlah tanggungan, jaminan, serta lama usaha dan output adalah keputusan diterima atau ditolaknya pengajuan pinjaman oleh debitur. Hasil uji coba pelatihan mengunakan jenis membership function yang paling efektif adalah jenis Generalized Bell dengan hasil rata-rata error sebesar 8.3278 x10-7. Metode ANFIS dapat digunakan dalam memberikan keputusan pemberian KUR dengan baik sesuai dengan jenis membership function dan iterasi pada tahap pelatihan jaringan.

scholarly journals DETEKSI TINGKAT KERUSAKAN SISTEM KELISTRIKAN PADA MOBIL MENGGUNAKAN ADAPTIVE NEURO-FUZZY INFERENCE SYSTEM

2021 ◽  
Vol 8 (1) ◽  
pp. 114
Author(s):  
Rizky Prabowo ◽  
Zuliana Nurfadlilah ◽  
Favorisen Rosyking Lumbanraja ◽  
Didik Kurniawan
Keyword(s):  
User Interface ◽  
Membership Function ◽  
Fuzzy Inference System ◽  
Interface Design ◽  
Fuzzy Inference ◽  
Production Capacity ◽  
Graphic User Interface ◽  
Electrical System ◽  
Inference System ◽  
Neuro Fuzzy

<p><em>The automotive industry in Indonesia has significant increase in the past decade. A famous car company opened a manufacturing branch to increase its production capacity in Indonesia. An increase in sales is directly proportional to an increase in service to customers. Damage on electrical system is the majority of modern car. Unfortunately, car users have minimal knowledge of car electricity. This article describes the technique of detecting the level of damage to a car's electrical system using the Adaptive Neuro-Fuzzy Inference System (Anfis) concept. As a case study in designing the system in question is the electrical system on the Toyota Avanza. Formation of a fuzzy inference system which is used for the system formation process through a GUI-based interface design (Graphic User Interface). The output of the system is a fuzzy analysis based on the membership function of the Gaussian, Triangular and Trapezoid methods to obtain an analysis of the level of damage to the electrical system on a Toyota Avanza. From the results of the system test for starter system, firewire system and lighting system,  it is concluded that the analysis of the level of damage to the electrical system on the car using Anfis based on the Gaussian membership function model is more accurate(reach 85%) in predicting the level of damage to the analyzed electrical system.</em></p><p><em><strong>Keywords</strong></em><em>: Anfis, Electrical System, Fuzzy Inference System, Toyota Avanza</em> </p><p><em>Industri otomotif di Indonesia mengalami peningkatan signifikan dalam kurun waktu satu dekade belakangan ini. Perusahaan mobil terkenal membuka pabrik manufaktur untuk meningkatkan kapasitas produksinya di Indonesia. Peningkatan penjualan berbanding lurus dengan peningkatan layanan kepada pelanggan. Kerusakan sistem kelistrikan merupakan kerusakan yang mayoritas dialami pengguna kendaraan mobil terbaru masa kini. Sayangnya, pengguna kendaraan mobil memiliki pengetahuan yang kurang tentang kelistrikan. Artikel ini mendeskripsikan tentang teknik mendeteksi tingkat kerusakan sistem kelistrikan mobil dengan menggunakan konsep Adaptive Neuro-Fuzzy Inference System (ANFIS). Sebagai studi kasus dalam mendesain sistem yang dimaksud adalah sistem kelistrikan pada Mobil Toyota Avanza. Pembentukan fuzzy inference system yang kemudian digunakan untuk proses pembentukan sistem melalui desain interface berbasis GUI (Graphic User Interface). Keluaran dari sistem yang dibuat adalah analisa fuzzy berdasarkan fungsi keanggotaan metode Gaussian, Triangular dan Trapezoid untuk mendapatkan analisa tingkat kerusakan sistem kelistrikan pada mobil Toyota Avanza. Dari hasil uji sistem yang dilakukan pada sistem starter, sistem pengapian dan sistem penerangan diperoleh kesimpulan analisis tingkat kerusakan sistem kelistrikan pada mobil dengan menggunakan Anfis berdasarkan model membership function Gaussian adalah lebih akurat (mencapai 85%) dalam menduga tingkat kerusakan sistem kelistrikan yang dianalisa.</em></p><p><em><strong>Kata kunci</strong></em><em>: Anfis; Fuzzy Inference System; Sistem Kelistrikan; Toyota Avanza</em></p>

scholarly journals Early Warning System for Flood Disaster Prediction in Wetland Area in Greater Yola Using Adaptive Neuro Fuzzy Inference System

2019 ◽  
pp. 1-19
Author(s):  
Ishaya Bitrus ◽  
P. B. Zirra ◽  
Sarjiyus Omega
Keyword(s):  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Human Life ◽  
Warning System ◽  
Flood Disaster ◽  
Percentage Error ◽  
Flood Prediction ◽  
Inference System ◽  
Flood Level ◽  
Neuro Fuzzy

Natural calamity disrupts our daily life activities; thereby bring many sufferings in our life. One of the natural disasters is the flood. Flood is one of the most catastrophic disasters. However, too much rainfall courses environmental hazard. These prompted to flood prediction in order to help communities and Government with the necessary tool to take precaution to safe human life and properties. This work was developed using an (ANFIS) Adaptive Neuro-Fuzzy Inference System to compare some weather parameter (temperature and relative humidity) with rainfall to forecast the amount of rainfall capable of coursing flood in the study area. From the above graph (Fig. 22) it can be seen that the actual and the forecasted rainfall followed the same pattern from 2008 to 2010 with slight decrease in 2011. A high amount of rainfall in 2012 was forecasted to be flooded during that year and tally with the forecasted rainfall on the above graph in 2012. Based on the results on the graph, it shows that from 2014 to 2017 gives a constant flow between the actual and forecasted rainfall. It is predicted that the maximum amount of rainfall forecasted was 124.0 mm which is far below the recommended flood level of 160.0 mm which reveals that, River Benue would not experience flood disaster in the year ahead. The model developed was validated using (MAPE) Mean Absolute Percentage Error as 4.0% with model efficiency of 96.0% which shows very high excellent prediction accuracy.

A Novel Neuro-Fuzzy Inference System with Multi-Level Membership Function for Classification Applications

2007 ◽  
Vol 11 (4) ◽  
pp. 365-372 ◽  
Author(s):  
Cheng-Jian Lin ◽  
◽  
Chi-Yung Lee ◽  
Cheng-Hung Chen ◽  
Keyword(s):  
Membership Function ◽  
Fuzzy Inference System ◽  
Clustering Algorithm ◽  
Fuzzy Inference ◽  
Learning Algorithm ◽  
Layer Structure ◽  
Inference System ◽  
Neuro Fuzzy ◽  
Multi Level ◽  
Takagi Sugeno

In this paper, a novel neuro-fuzzy inference system with multi-level membership function (NFIS_MMF) for classification applications is proposed. The NFIS_MMF model is a five-layer structure, which combines the traditional Takagi-Sugeno-Kang (TSK). Layer 2 of the NFIS_MMF model contains multi-level membership functions, which are multilevel activation functions. A self-constructing learning algorithm, which consists of the self-clustering algorithm (SCA), fuzzy entropy, and the backpropagation algorithm, is also proposed to construct the NFIS_MMF model and perform parameter learning. Simulations were conducted to show the performance and applicability of the proposed model.

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