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Desain Faktorial untuk Pembuktian Teori Masters dalam Penentuan Jumlah Lapisan dan Neuron Tersembunyi pada Peramalan Multivariat dengan Jaringan Syaraf Tiruan Dwi Ayu Lusia; Awalludiyah Ambarwati
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 7 No 1: Februari 2020
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Jaringan syaraf tiruan merupakan metode yang sangat sering digunakan untuk peramalan. Akurasi jaringan syaraf tiruan dipengaruhi oleh jumlah lapisan tersembunyi dan neuron didalamnya. Salah satu teori yang membahas tentang jumlah lapisan tersembunyi dan neuron didalamnya adalah Teori Masters. Teori Masters merumuskan jumlah neuron berdasarkan aturan geometric pyramid. Selain itu, Teori Masters juga mengungkapkan bahwa tidak ada alasan menggunakan lebih dari dua lapisan tersembunyi. Penelitian ini bertujuan untuk membuktikan kebenaran Teori Masters menggunakan metode desain faktorial. Kombinasi yang digunakan ialah 1, 5, 10, dan 15 neuron tersembunyi. Hasil penelitian menggunakan metode desain faktorial, menunjukkan bahwa rumus teori Masters memiliki peringkat yang cukup baik yaitu 50% teratas untuk data training maupun testing. Aturan geometric pyramid memiliki akurasi yang baik pada data training. Akan tetapi aturan tersebut tidak berlaku pada data testing. Model jaringan syaraf tiruan dengan empat lapisan tersembuyi memiliki nilai akurasi RMSE (Root Mean Square Error) terbaik pada data training dan testing. Semakin banyak lapisan tersembunyi maka semakin baik nilai RMSE data training maupun data testing. Dengan demikian dapat disimpulkan bahwa Teori Masters yang menyebutkan bahwa tidak ada alasan menggunakan lebih dari dua lapisan tersembunyi, terbukti tidak valid. AbstractArtificial neural networks is a forecasting method a very common method for forecasting. Accuracy of artificial neural networks is influenced by the number of hidden layers and neurons in them. One theory that discusses the number of hidden layers and neurons in them is the Masters Theory. Masters Theory formulates the number of neurons based on geometric pyramid rules. In addition, the Masters Theory also reveals that there is no reason to use more than two hidden layers. This study aims to prove the Masters Theory using factorial design methods. The combinations used are 1, 5, 10, and 15 hidden neurons. Based on factorial design methods in this study, it can be concluded that the formula for many neurons has adequate rating of 50% above, both training and testing data. Tthe geometric pyramid rules have good accuracy in training data. However, this rule does not apply to data testing. The artificial neural network model with four hidden layers has the best RMSE (Root Mean Square Error) accuracy values in training and testing data. The more hidden layers will obtain better RMSE in both training dan testing datasets. Thus, the Masters Theory which states that there is no reason to use more than two hidden layers, proved to be invalid.
Pengaruh Corona Virus Disease 2019 (Covid-19) Terhadap Tren Indek Saham Sektoral: Pengaruh Corona Virus Disease 2019 (Covid-19) Terhadap Tren Indek Saham Sektoral Dwi Ayu Lusia; Darmanto Darmanto
Jurnal Litbang Edusaintech Vol. 1 No. 1 (2020): Volume 1 No 1 2020
Publisher : Litbang PWM Jawa Tengah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51402/jle.v1i1.11

Abstract

The spread of Covid-19 since April 2020 has had a high number of cases and / or number of deaths and this can spread to various regions and countries. So that the Indonesian government issued a large-scale social restriction regulation. This will have an impact on sectoral aspects in Indonesia. Therefore this study was made with the aim of knowing the effect of Covid-19 on the sectoral stock index trend and how it affects them. The data used are monthly data on sectoral stock index prices (11 sectors) from January 2010 to March 2020 (before covid-19) and April to October 2020 (ongoing covid-19). Based on a comparison between the regression coefficients before and the onset of Covid-19, it can be seen that the sectors not affected by Covid-19 are basic industry, consumer industry, development, finance, manufacturing, other industries, property and trade. The absence of covid-19 influence on the sector is evidenced by the existence of a slice between the regression coefficients between before and during covid-19. The agriculture, infrastructure and mining sectors were affected by Covid-19. The infrastructure sector has experienced a trend change from rising to being stagnant. Meanwhile, the agricultural and mining sectors experienced a trend change from down to up.
Optimalisasi Produksi Budidaya Benih Ikan Lele Melalui Sosialisasi Budidaya Semi-Intensif Pada Pokdakan Banturono Muhammad Musa; Evellin Dewi Lusiana; Sulastri Arsad; Aminudin Afandhi; Dwi Ayu Lusia; Mohammad Mahmudi
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol 5, No 2 (2022): Mei 2022
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v5i2.1294

Abstract

Abstrak: Malang Regency is an area that has a lot of natural resource potential, especially in the field of fisheries, both capture fisheries, and aquaculture. One of the aquaculture activities carried out by the community in Malang Regency, especially in Bantur Village is catfish aquaculture. This aquaculture activity is experiencing obstacles, namely the large proportion of operational costs for feed (> 60%) and the incompatibility of semi-intensive aquaculture practices that are applied, in which the absence of water quality monitoring has an impact on fish growth is not optimal. The purpose of this community service activity is to provide knowledge to catfish cultivators in Bantur Village about semi-intensive aquaculture systems and the manufacture of fish feed independently through training on pellet making machine technology applications. The socialization and training activities carried out have proven to be able to increase the knowledge of cultivators so that they can become their provisions to improve the quality and quantity of aquaculture products.Keywords: catfish; self-feed production; semi-intensive aquaculture; water quality;Abstract: Kabupaten Malang merupakan wilayah yang memiliki banyak potensi sumberdaya alam terutama dalam bidang perikanan baik perikanan tangkap maupun perikanan budidaya.      Salah satu kegiatan perikanan budidaya yang dilakukan oleh masyarakat di kabupaten Malang,  khususnya desa Bantur adalah budidaya Ikan Lele. Kegiatan budidaya ini mengalami kendala yaitu proporsi biaya operasional untuk pakan yang besar (> 60%) dan ketidaksesuaian praktik budidaya semi-intensif yang diterapkan, di mana ketiadaan pemantauan kualitas air yang ber-dampak pada pertumbuhan ikan menjadi tidak optimal. Metode dalam penelitian ini berupa konsultasi dengan Sosialisasi dan penyuluhan tentang teknologi budidaya benih Ikan Lele  menggunakan sistem semi intensif, dan Pendampingan aplikasi teknologi mesin pembuat pellet untuk men-dukung budidaya benih Ikan Lele semi intensif di Pokdakan Banturo-no Tujuan kegiatan pengabdian kepada masyarakat ini adalah untuk memberikan pengetahuan kepada para pembudidaya Ikan Lele di desa Bantur mengenai sistem budidaya semi-intensif dan pembuatan pakan ikan secara mandiri melalui pelatihan aplikasi teknologi mesin pembuat pellet. Kegiatan sosialisasi dan pelatihan yang dilakukan terbukti dapat menambah pengetahuan pembudidaya, sehingga dapat menjadi bekal mereka untuk meningkatkan kualitas dan kuantitas hasil budidaya.           Kata kunci: budidaya semi-intensif; ikan lele; kualitas air; pakan mandiri.