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IMPLEMENTASI MODEL FUZZY-WAVELET DAN FIS METODE MAMDANI DALAM PREDIKSI NILAI TUKAR EUR/IDR

Unnes Journal of Mathematics · Vol. 8 No. 2 (2019) · pp. 60–68

DOI
10.15294/ujm.v8i2.28214
ISSN
2460-5859, 2252-6943
Published
2019-08-17
Publisher
Universitas Negeri Semarang
Language
eng

Abstract

Penelitian ini bertujuan untuk mengetahui hasil model fuzzy-wavelet dalam memprediksi nilai tukar EUR/IDR dan tingkat akurasi model tersebut. Dengan mengambil data time series mingguan nilai tukar EUR/IDR 128 minggu terakhir, Model fuzzy-wavelet merupakan penggabungan dari wavelet dan fuzzy. Pemodelan fuzzy-wavelet diawali dengan transformasi wavelet menggunakan (Maximal Overlap Discrete Wavelet Transform) MODWT mother haar sebagai pre-prosesing dan hasil MODWT digunakan sebagai input dalam sistem inferensi fuzzy. Pemilihan input ditentukan berdasarkan plot (Autocorrelation Function) ACF dan aturan fuzzy ditentukan dengan metode table look-up scheme. Sistem inferensi fuzzy yang digunakan Mamdani dengan fungsi implikasi min dan komposisi antar aturan max. Selanjutnya himpunan fuzzy yang diperoleh dari proses inferensi diolah kembali menggunakan defuzzifikasi centroid untuk dijadikan bilangan tegas sebagai hasil dari prediksi nilai tukar EUR/IDR. Dengan semesta pembicaraan variabel input dan output yang sama, dibentuk 2 Model yaitu Model 1 menggunakan 9 himpunan fuzzy dan Model 2 menggunakan 5 himpunan fuzzy. Nilai MAPE dihitung untuk mengetahui keakuratan pada tiap model dan menentukan model terbaik. Hasil dari penelitian menunjukkan bahwa Model 1 menghasilkan nilai MAPE sebesar 0,85% dan 9 himpunan fuzzy dengan 12 variabel input. Model 1 merupakan model yang paling tepat untuk prediksi nilai tukar EUR/IDR dengan 128 data skala mingguan. This study aims to determine the results of the fuzzy-wavelet model in predicting the EUR / IDR exchange rate and the accuracy of the model. By taking the last week's EUR / IDR 128 week exchange rate data series, the fuzzy-wavelet model is a combination of wavelets and fuzzy. Fuzzy-wavelet modeling begins with a wavelet transformation using the mother haar (Maximal Overlap Discrete Wavelet Transform) MODWT as a pre-processing and the MODWT results are used as inputs in the fuzzy inference system. The selection of inputs is determined based on the plot (Autocorrelation Function) ACF and fuzzy rules are determined by the table look-up scheme method. The fuzzy inference system used by Mamdani with the min implication function and composition between rules max. Furthermore, the fuzzy set obtained from the inference process is reprocessed using the defuzzification of the centroid to become a firm number as a result of the predicted EUR / IDR exchange rate. With the same universe of input and output variables, 2 models are formed, namely Model 1 uses 9 fuzzy sets and Model 2 uses 5 fuzzy sets. The MAPE value is calculated to determine the accuracy of each model and determine the best model. The results of the study show that Model 1 produces MAPE values ​​of 0.85% and 9 fuzzy sets with 12 input variables. Model 1 is the most appropriate model for the prediction of the EUR / IDR exchange rate with 128 weekly scale data.

Collaboration network of the authors

40 authors · 94 co-authorship links · 2 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • State University of Semarang
  • Universitas Airlangga
  • Sebelas Maret University
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Mulyono MulyonoAffiliation unknown9
Hardi SuyitnoAffiliation unknown6
Kartono KartonoUniversitas Airlangga4
Rochmad RochmadAffiliation unknown3
Desmiani SusantiAffiliation unknown2
Mukeriyanto MukeriyantoAffiliation unknown2
Muhamad Nurul HudaAffiliation unknown2
Tiara Budi UtamiAffiliation unknown2
Mohammad FatchurrohmanAffiliation unknown1
Nur Ilmia NisarohmahAffiliation unknown1
Walid WalidState University of Semarang1
Nurul HidayatiAffiliation unknown1
Muji nastitiAffiliation unknown1
Danny PratiwiAffiliation unknown1
Tri Sri Noor AsihAffiliation unknown1
Lana Aristya AnggrainiAffiliation unknown1
Eka NurdiniAffiliation unknown1
Gilar Ajie WidiantomoAffiliation unknown1
Eka Ningrum PrianasariAffiliation unknown1
Charisma Fitra AndriyanAffiliation unknown1
Suparmi SuparmiSebelas Maret University1
Kristina WijayantiAffiliation unknown1
Fenti NugraheniAffiliation unknown1
Supriyanti SupriyantiAffiliation unknown1
Sugiman SugimanAffiliation unknown1
Hery SutartoState University of Semarang1
Dian Insani AbdullahAffiliation unknown1
Mashuri MashuriAffiliation unknown1
Lusi NofitasariAffiliation unknown1
Isti HidayahAffiliation unknown1
Putri Reno Lenggo GeniAffiliation unknown1
Ika FitriyaniAffiliation unknown1
Delta Aringga RakhmiAffiliation unknown1
Joko SusiloAffiliation unknown1
Maulida Fatma Reza AulaAffiliation unknown1
Agriat BarataAffiliation unknown1
Y.L SukestyarnoAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/sju/index.php/ujm/oai, first harvested 6 Nov 2026, last seen 6 Nov 2026.
Original metadata (oai_dc)
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	<dc:title xml:lang="en-US">IMPLEMENTASI MODEL FUZZY-WAVELET DAN FIS METODE MAMDANI DALAM PREDIKSI NILAI TUKAR EUR/IDR</dc:title>
	<dc:creator>Kharomah, Siti Ismiatul</dc:creator>
	<dc:creator>Rosyida, Isnaini</dc:creator>
	<dc:creator>Mastur, Zaenuri</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini bertujuan untuk mengetahui hasil model fuzzy-wavelet dalam memprediksi nilai tukar EUR/IDR dan tingkat akurasi model tersebut. Dengan mengambil data time series mingguan nilai tukar EUR/IDR 128 minggu terakhir, Model fuzzy-wavelet merupakan penggabungan dari wavelet dan fuzzy. Pemodelan fuzzy-wavelet diawali dengan transformasi wavelet menggunakan (Maximal Overlap Discrete Wavelet Transform) MODWT mother haar sebagai pre-prosesing dan hasil MODWT digunakan sebagai input dalam sistem inferensi fuzzy. Pemilihan input ditentukan berdasarkan plot (Autocorrelation Function) ACF dan aturan fuzzy ditentukan dengan metode table look-up scheme. Sistem inferensi fuzzy yang digunakan Mamdani dengan fungsi implikasi min dan komposisi antar aturan max. Selanjutnya himpunan fuzzy yang diperoleh dari proses inferensi diolah kembali menggunakan defuzzifikasi centroid untuk dijadikan bilangan tegas sebagai hasil dari prediksi nilai tukar EUR/IDR. Dengan semesta pembicaraan variabel input dan output yang sama, dibentuk 2 Model yaitu Model 1 menggunakan 9 himpunan fuzzy dan Model 2 menggunakan 5 himpunan fuzzy. Nilai MAPE dihitung untuk mengetahui keakuratan pada tiap model dan menentukan model terbaik. Hasil dari penelitian menunjukkan bahwa Model 1 menghasilkan nilai MAPE sebesar 0,85% dan 9 himpunan fuzzy dengan 12 variabel input. Model 1 merupakan model yang paling tepat untuk prediksi nilai tukar EUR/IDR dengan 128 data skala mingguan.
This study aims to determine the results of the fuzzy-wavelet model in predicting the EUR / IDR exchange rate and the accuracy of the model. By taking the last week's EUR / IDR 128 week exchange rate data series, the fuzzy-wavelet model is a combination of wavelets and fuzzy. Fuzzy-wavelet modeling begins with a wavelet transformation using the mother haar (Maximal Overlap Discrete Wavelet Transform) MODWT as a pre-processing and the MODWT results are used as inputs in the fuzzy inference system. The selection of inputs is determined based on the plot (Autocorrelation Function) ACF and fuzzy rules are determined by the table look-up scheme method. The fuzzy inference system used by Mamdani with the min implication function and composition between rules max. Furthermore, the fuzzy set obtained from the inference process is reprocessed using the defuzzification of the centroid to become a firm number as a result of the predicted EUR / IDR exchange rate. With the same universe of input and output variables, 2 models are formed, namely Model 1 uses 9 fuzzy sets and Model 2 uses 5 fuzzy sets. The MAPE value is calculated to determine the accuracy of each model and determine the best model. The results of the study show that Model 1 produces MAPE values ​​of 0.85% and 9 fuzzy sets with 12 input variables. Model 1 is the most appropriate model for the prediction of the EUR / IDR exchange rate with 128 weekly scale data.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2019-08-17</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/sju/ujm/article/view/28214</dc:identifier>
	<dc:identifier>10.15294/ujm.v8i2.28214</dc:identifier>
	<dc:source xml:lang="en-US">Unnes Journal of Mathematics; Vol 8 No 2 (2019); 60-68</dc:source>
	<dc:source>2460-5859</dc:source>
	<dc:source>2252-6943</dc:source>
	<dc:source>10.15294/ujm.v8i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/sju/ujm/article/view/28214/17360</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2019 Unnes Journal of Mathematics</dc:rights>
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