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All Journal International Journal of Electrical and Computer Engineering Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Pembangunan Wilayah dan Kota Mechatronics, Electrical Power, and Vehicular Technology Journal on Mathematics Education (JME) Jurnal Ilmiah Kursor Jurnal technoscientia Journal of Indonesian Economy and Business Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences Journal of ICT Research and Applications Jurnal Edukasi dan Penelitian Informatika (JEPIN) Scientific Journal of Informatics Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Akuatika Indonesia Journal of Mathematics and Mathematics Education (JMME) JISAE (Journal of Indonesian Student Assesment and Evaluation) JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Jurnal Darma Agung JURNAL TEKNOLOGI TECHNOSCIENTIA jurnal dikdas bantara LINEAR: Journal of Mathematics Education Jurnal Nasional Teknik Elektro dan Teknologi Informasi Inspiration: Jurnal Teknologi Informasi dan Komunikasi Mathematics Education Journal Journal on Mathematics Education
Bambang Riyanto Trilaksono
Sekolah Teknik Elektro Dan Informatika, Institut Teknologi Bandung Jalan Ganesha 10, Bandung 40132, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Implementation of recurrent neural network for the forecasting of USD buy rate against IDR Lady Silk Moonlight; Bambang Riyanto Trilaksono; Bambang Bagus Harianto; Fiqqih Faizah
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 4: August 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i4.pp4567-4581

Abstract

This study implements a recurrent neural network (RNN) by comparing two RNN network structures, namely Elman and Jordan using the backpropagation through time (BPTT) programming algorithm in the training and forecasting process in foreign exchange forecasting cases. The activation functions used are the linear transfer function, the tan-sigmoid transfer function (Tansig), and the log-sigmoid transfer function (Logsig), which are applied to the hidden and output layers. The application of the activation function results in the log-sigmoid transfer function being the most appropriate activation function for the hidden layer, while the linear transfer function is the most appropriate activation function for the output layer. Based on the results of training and forecasting the USD against IDR currency, the Elman BPTT method is better than the Jordan BPTT method, with the best iteration being the 4000th iteration for both. The lowest root mean square error (RMSE) values for training and forecasting produced by Elman BPTT were 0.073477 and 122.15 the following day, while the Jordan backpropagation RNN method yielded 0.130317 and 222.96 also the following day. 
Sistem Penilaian Kondisi Jembatan Menggunakan Respons Dinamik dengan Wireless Sensor Network Seno Adi Putra; Gede Agus Andika Sani; Adi Trisna Nurwijaya; Abikarami Anandadiga; Pratama Budi Wijayanto; Bambang Riyanto Trilaksono; Muhammad Riyansyah
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 7 No 3: Agustus 2018
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1127.736 KB)

Abstract

Wireless Sensor Network (WSN) is small embedded devices deployed in large scale network and has capability to sense, compute, and communicate with others. It combines modern sensor, microelectronic, computer, communication, and distributed processing technology. It takes into account in several aspects of live especially in structural health monitoring systemof bridge. Due to environmental circumstance, a bridge should be monitored to make sure that it can perform its service safely. Therefore, it is necessary to develop WSN application to monitor bridge condition and send warning message to control room if the bridge is under abnormal condition. This paper proposes the development of automatic WSN system for measuring the level of bridge structural health based on its dynamic responses. The main contribution of this work is developing WSN system for vibration-based bridge condition assessment in which identifies the bridge’s fundamental frequency and mode shape. Experimental result shows that the fundamental frequency measured by our proposed system is close to the value analyzed using finite element analysis (FEA) and according to Modal Assurance Criteriation (MAC), our proposed measurement system has correlation with FEA.
Practicality of Student-Centered Assessment/Learning using Mathematics Modeling Process Worksheets to Improve the Quality of Education Riyanto, Bambang
JISAE: Journal of Indonesian Student Assessment and Evaluation Vol. 10 No. 1 (2024): JISAE (Journal of Indonesian Student Assessment and Evaluation)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jisae.v10i1.47902

Abstract

It is necessary to consider reforms to improve the quality of education through assessment/learning. The problem formulation of this research is how to design student-centered assessment/learning using practical mathematical modeling process worksheets to improve the quality of education? This research uses a development research approach developed by Akker, Gravemeijer, McKenney and Nieveen. This development research consists of 3 steps, namely analysis, design and evaluation. In the analysis step, student analysis, curriculum, mathematical modeling and real world problems are implemented. Second step, design and product. In the final step, researchers used a formative evaluation design consisting of self-evaluation, one-to-one, expert review, small group, and field test. Data were analyzed using descriptive analysis methods: (1) walk through, analysis based on solutions and student comments in small groups to obtain student-centered assessment/learning using mathematical modeling process worksheets using the best practical transportation context to improve the quality of education; (2) analyzing the results of the review of small group results. Based on the results of the small group worksheet, the mathematical modeling process is practical for improving the quality of education. Students commented that this mathematical modeling process worksheet was interesting, confusing but challenging and had never been found in their classrooms. Students can solve problems on process worksheets even though the mathematization process has not yet appeared, because students only solve them using informal methods. So, this is a golden opportunity to implement in order to improve the quality of education through assessment/learning. So, a practical mathematical modeling process worksheet is obtained to implement student-centered assessment/learning in order to improve the quality of education.
Node Classification on The Citation Network Using Graph Neural Network Irani Hoeronis; Bambang Riyanto Trilaksono
Inspiration: Jurnal Teknologi Informasi dan Komunikasi Vol. 13 No. 1 (2023): Inspiration: Jurnal Teknologi Informasi dan Komunikasi
Publisher : Pusat Penelitian dan Pengabdian Pada Masyarakat Sekolah Tinggi Manajemen Informatika dan Komputer AKBA Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35585/inspir.v13i1.49

Abstract

Research on Graph Neural Networks has influenced various current real-world problems. The graph-based approach is considered capable of effectively representing the actual state of surrounding data by utilizing nodes, edges, and features. Consider the feedforward neural network and the graph neural network approaches, we determine the accuracy of each method. In the baseline experiment, training and testing were performed using the NN approach. The resulting accuracy of FNN was 72.59 % and GNN model has increased by 81.65 %. There is a 9.06 % increase in accuracy between the baseline model and the GNN model. The new data utilized in the model predictions showcases the probabilities of each class through randomly generated examples.
ANALISIS TRACK QUALITY INDEX (TQI) BERDASARKAN STANDAR KERETA API INDONESIA, POLANDIA DAN INDIA (STUDI KASUS LINTAS BRUMBUNG - KEDUNGJATI) Ramadhan, Doni; Setiadji, Bagus Hario; Riyanto, Bambang
JURNAL DARMA AGUNG Vol 31 No 5 (2023): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v31i5.3727

Abstract

Terdapat perbedaan dalam menilai kualitas jalur kereta api di negara Indonesia, Polandia dan India. Dalam penelitian ini bertujuan untuk membandingkan metode perhitungan kualitas jalur kereta api sebagai kegiatan perencanaan perawatan jalur dan pengelolaan infrastruktur kereta api. Dalam pengukuran jalur kereta api di lintas Brumbung – Kedungjati menggunakan kereta api EM-120 milik PT Kereta Api Indonesia (Persero) menghasilkan 4 parameter yaitu angkatan, listringan, pertinggian dan lebar sepur. Jenis kereta ukur yang dioperasionalkan Indonesia dan Polandia dengan jenis yang sama EM-120 sedangkan India jenis SPIC. Lebar sepur di Indonesia 1067 mm, Polandia 1435 mm dan India 1676 mm. Metode yang digunakan dalam penelitian tabulasi silang. Hasil dari tabulasi silang untuk jenis kategori standar Indonesia (TQI) menghasilkan kondisi baik sekali sedangkan kategori standar India (TGI) menghasilkan perawatan mendesak (PM) sebesar 67 data dengan persentase 32,4% sehingga terdapat ketimpangan nilai antara TQI dan TGI. Hasil dari tabulasi silang untuk batasan kecepatan standar Indonesia (TQI) menghasilkan batasan kecepatan max 100-120 km/jam sedangkan standar Polandia (J. Coef Synthetic) dengan kecepatan >120 km/jam sebesar 49 data dengan persentase 23,7% sehingga untuk batasan kecepatan memiliki kemiripan.
UPAYA PENINGKATAN HASIL BELAJAR TENTANG PANAS DAN PERPINDAHANNYA MELALUI PENDEKATAN PEMBELAJARAN CONTEXTUAL TEACHING AND LEARNING PADA SISWA KELAS V A riyanto, bambang
Jurnal Dikdas Bantara Vol 3 No 1 (2020)
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jdb.v3i1.573

Abstract

Penelitian ini bertujuan untuk meningkatkan proses pembelajaran, motivasi, dan hasil belajar siswa dalam mempelajari materi hubungan ciri-ciri khusus pada hewan dengan lingkungan hidupnya melalui pendekatan pembelajaran kontekstual bagi siswa kelas VA Semester II SD Negeri 2 Mojoreno tahun pelajaran 2018/2019. Penelitian ini dilaksanakan di SD Negeri 2 Mojoreno Kecamatan Sidoharjo Kabupaten Wonogiri, pada bulan Januari sampai dengan bulan Mei 2019 dengan subyek siswa kelas VA SD Negeri 2 Mojoreno yang terdiri dari 20 anak dengan satu rombongan belajar. Prosedur penelitian ini menggunakan metode Penelitian Tindakan Kelas yang dikembangkan Kenmis dan Taggart melalui langkah-langkah: (1) perencanaan (planning), (2) pelaksanaan (acting), (3) pengamatan (observasing), (4) refleksi (reflecting). Penelitian ini dilaksanakan dalam dua siklus. Siklus I menerapkan pendekatan pembelajaran kontekstual dengan kelompok besar dan siklus II menerapkan pendekatan pembelajaran kontekstual dengan kelompok kecil dan tugas individu. Hasil penelitian menunjukkan bahwa melalui penerapan pendekatan pembelajaran kontekstual dapat meningkatkan motivasi dan hasil belajar siswa dari kondisi awal yang rendah ke kondisi akhir yang tinggi. Proses pembelajaran meningkat dari kategori kurang baik menjadi pembelajaran yang baik. Peningkatan rata-rata hasil belajar aspek pengetahuan siswa melalui penerapan pendekatan kontekstual pada materi panas dan perpindahannya sebesar 22,5 poin dan persentase ketuntasan nilai pengetahuan meningkat sebesar 55%. Peningkatan nilai rata-rata aspek keterampilan sebesar 20,5 poin dan persentase ketuntasan nilai keterampilan meningkat sebesar 40%.Kata kunci : motivasi, hasil belajar, pendekatan kontekstual
Near-Infrared Genggam untuk Penilaian Mutu Minyak Ikan dari Mata Tuna Beku Riyanto, Bambang; Tarman, Kustiariyah; Trilaksini, Wini; Pratiwi, Ghina Eka
Akuatika Indonesia Vol 9, No 1 (2024): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jaki.v9i1.48406

Abstract

Mutu minyak ikan kaya docosahexaenoic acid (DHA) memiliki keterkaitan yang signifikan dengan bahan baku mata tuna. Penanganan dan penyimpanan beku mata tuna masih dihadapkan pada kondisi yang belum optimal dan membutuhkan kepraktisan akan analisis terhadap kandungan minyak ikan. Near-infrared (NIRS) genggam menjadi alternatif potensial dalam menganalisis minyak ikan seiring perkembangan perangkat seluler modern. Tujuan penelitian adalah menentukan mutu (asam lemak bebas, bilangan peroksida) dan kandungan asam lemak minyak ikan dari mata tuna dengan kondisi penyimpanan beku menggunakan NIRS genggam. Penelitian mencakup penentuan karakteristik mata tuna pada kondisi penyimpanan beku, dilanjutkan dengan ekstraksi dan analisis mutu (asam lemak bebas, bilangan peroksida) serta kandungan asam lemak minyak ikan. Data yang diperoleh dikorelasikan dengan spektrum NIRS gengam menggunakan model kuadrat terkecil parsial (PLS). Hasil penelitian menunjukkan bahwa kandungan asam lemak bebas dan bilangan peroksida minyak ikan pada penyimpanan beku mata tuna 6 bulan adalah 8,39±3,47 % dan 180,3±13,31 mEq O2/kg, sementara pada penyimpanan beku 12 bulan adalah 3,43±0,69% dan 149,9±30,59 mEq O2/kg. Kandungan DHA minyak ikan pada kondisi penyimpanan beku mata tuna masihtetap tinggi, yaitu 25,49±0,03 % dan 26,16±1,30 %. Near-infrared genggam memberikan penilaian dan informasi relevan terhadap mutu minyak ikan dari kondisi penyimpanan beku mata tuna, sebagaimana ditunjukkan dengan nilai korelasi R2-Pearson DHA dan EPA, yaitu 0,98, serta nilai root mean squared error-RMSE untuk kalibrasi DHA adalah 0,08 dan EPA 0,02, sedangkan RMSE validasi DHA adalah 0,12 dan EPA 0,04.
PENDESAINAN SOAL PEMODELAN MATEMATIKA UNTUK MEMPROMOSIKAN KEMAMPUAN PROBLEM-POSING SISWA Riyanto, Bambang
LINEAR: Journal of Mathematics Education Vol. 5 No. 1 (2024): Volume 5 Nomor 1 Juni 2024
Publisher : Fakultas Tarbiyah dan Ilmu Keguran IAIN Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/linear.v5i1.8828

Abstract

Problem-posing matematika sangat penting dalam pendidikan matematika, tetapi kurang mendapat perhatian dari siswa, guru, dan peneliti. Rumusan masalah penelitian ini adalah mendesain soal pemodelan matematika untuk mempromosikan kemampuan problem-posing siswa di sekolah dasar yang valid. Penelitian ini menggunakan pendekatan Design Research tipe penelitian pengembangan yang dikembangkan oleh Akker, Gravemeijer, McKenney dan Nieveen. Penelitian pengembangan ini terdiri dari 3 langkah yaitu analisis, desain dan evaluasi. Langkah analisis, analisis siswa, kurikulum, pemodelan matematika dan masalah dunia nyata diimplementasikan. Langkah desain, desain dan produk. Langkah Evaluasi formatif, peneliti menggunakan desain evaluasi formatif yang terdiri dari self-evaluation, one-to-one, expert review, small group, dan field test. Instrumen riset ini adalah soal pemodelan matematika konteks paket ulang tahun. Data dianalisis dengan menggunakan metode analisis deskriptif: (1) walk through, analisis berdasarkan komentar ahli dalam tinjauan ahli untuk mendapatkan soal pemodelan matematika yang valid untuk meningkatkan kemampuan pengajuan masalah siswa; (2) Menganalisis hasil review secara one to one. Riset ini hanya sampai pada one to one. Berdasarkan validasi ahli soal pemodelan sudah baik dan menantang. Siswa berkomentar bahwa soal pemodelan ini menarik dan bagus. Siswa dapat mengajukan soal matematika sekaligus menyelesaikannya dari situasi paket makanan ulang tahun. Sehingga, diperoleh soal pemodelan matematika menggunakan konteks paket ulang tahun yang valid untuk mempromosikan kemampuan problem posing siswa sekolah dasar.
Analysis of implementing Realistic Mathematics Education principles to enhance mathematics competence of slow learner students Listiawati, Nur; Sabon, Simon Sili; Siswantari; Subijanto; Wibowo, Slamet; Zulkardi; Riyanto, Bambang
Journal on Mathematics Education Vol. 14 No. 4 (2023): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v14i4.pp683-700

Abstract

One of the Education for Sustainable Development Goals is to provide equitable and inclusive access to quality education for all. However, some children with special needs, particularly slow learners, have yet to be able to enjoy inclusive and high-quality learning services. This research aims to enhance slow learners' competence by implementing the Realistic Mathematics Education Approach. It is descriptive qualitative research, with data collection techniques including focus group discussion, interview, and learning observation. The analysis involved comparing the principles of Realistic Mathematics Education in theory with those applied by teachers, as well as the learning approach used by teachers with those required by slow learners. The findings indicate that while some teachers have implemented learning based on the principles of Realistic Mathematics Education for all students, there needs to be more focus on interventions specifically tailored to the needs of slow learners. Furthermore, teachers still need to fully understand the services required by slow learners based on their unique characteristics. The implementation of Realistic Mathematics Education to meet the learning needs of slow learners in mathematics has primarily focused on activity and interactivity principles without emphasis on the understanding of concepts to enhance their competence.
MENINGKATKAN KEMAMPUAN PENALARAN DAN PRESTASI MATEMATIKA DENGAN PENDEKATAN KONSTRUKTIVISME PADA SISWA SEKOLAH MENENGAH ATAS Riyanto, Bambang; Siroj, Rusdy A.
Mathematics Education Journal Vol. 5 No. 2 (2011): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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

Abstract

The research aims are to know (1) the effect of learning approach toward mathematics echievement, (2) the effect of reasoning level student’s toward mathematics echievement, and (3) intraction between learning approach and reasoning level student’s toward mathematics echievement. The research method that be used is experiment research. Collecting data is conducted by reasoning test and echievement mathematics test. The research is experimented at Senior High School number 1 Kayuagung. Population of research is all student at tenth class grade that involve 7 class. The sample are class X.A that involve 31 student as experiment class and X.B that involve 31 student as control class. The research show that the Anova two way for approach learning is obtained F hitung = 15,982 and Ftabel=4,02, so F hitung > F tabel, or the mathematics echievement student that be following at constructivism approach is better than at conventional approach. The anova two way for level reasoning student’s is obtained F hitung = 39,489 and Ftabel=4,02, so Fhitung> F tabel, or The students that have high level reasoning is better than the students that have low level reasoning. The analysis of two way Anova for interaction between the approach learning and the level reasoning student’s is obtained F hitung = 0,265 and Ftabel=4,02, so F hitung < Ftabel, or there isn’t interaction between learning approach and the level reasoning student’s to reach mathematics echievement.DOI: 10.22342/jpm.5.2.581.
Co-Authors Abdurrahman - Abikarami Anandadiga Adi Trisna Nurwijaya Adit Kurniawan Agung Surya Wibowo Ali Sadiyoko Anandadiga, Abikarami Arief Syaichu Rohman Arief Syaichu-Rohman Arief Syaichu-Rohman Arief Syaichu-Rohman Armein Z.R. Langi Arry Akhmad Arman Asep Najmurrokhman Astri Purnama Dewi Azarya Pramayudo Bagus Hario Setiadji Bambang Bagus Harianto Bomo S. Wibowo Bomo S. Wibowo Budi Rahardjo Cahyuning Isnaini, Cahyuning Darmawijoyo, Darmawijoyo Doni Ramadhan, Doni Dwi H. Widyantoro Dwi Hendratmo Widyantoro E. Aminudin Aziz E. Aminudin Aziz E. Aminudin Aziz Edvin Ramadhan Edvin Ramadhan Edwin Muhammad Puji Syamsudin Eko Marpanaji Elisati Hulu Emma Marsella Enda Esyudha Pratama, Enda Esyudha Fadjar Rahino Triputra Fadjar Rahino Triputra, Fadjar Rahino Fiqqih Faizah Gede Agus Andika Sani Gugup Kismono Hari Muhammad Hendrawan Hendrawan Hinggo S, Hichmaed Tachta Ibrahin Hakim Ibrahin Hakim Iping Supriana Suwardi Irani Hoeronis Irma Husnaini Jogiyanto Hartono Judhi Santoso, Judhi Kenko Uchida Kenko Uchida Kusprasapta Mutijarsa Kustiariyah Tarman Lady Silk Moonlight Langi, Armein ZR Lazuardi Anggono Lazuardi Anggono Masayu L. Khodra Masayu Leylia Khodra Modestus Oliver Asali Mohamad Dahsyat Mohamad Dahsyat, Mohamad Mohammad Dimas Muhammad Adi Khairul Anshary Muhammad Nur Kholish Abdurrazaq Muhammad Ridho Rosa Muhammad Riyansyah Muhammad Zakiyullah Romdlony Nur Listiawati, Nur Nurwijaya, Adi Trisna Pratama Budi Wijayanto Pratiwi, Ghina Eka Rajesri Govindaraju Ramadhan, Edvin Ratu Ilma Indra Putri Rianto Adhy Sasongko, Rianto Adhy Rila Mandala Riyansyah, Muhammad Rusdy A. Siroj Sani, Gede Agus Andika Saripudin Saripudin Seno Adi Putra Simon Sili Sabon, Simon Sili Sirait, Raisyicha Mutik Siswantari Sri Widyantoro, Sri Subijanto Syafrudin Syafrudin Tjong Wan Sen Toto Indriyanto Trilaksini, Wini Trio Adiono Wahyu Ramadhan Wakhyu Dwiono Wardhana A.S, Wisnu Wibowo, Slamet Widowati, Widowati Widyawardana Adiprawita Widyawardana Adiprawita, Widyawardana Widyawardhana Adiprawita Wijayanto, Pratama Budi Wini - Trilaksani Wirda, Yendri Wrastawa Ridwan Wulandari, Ayu Septi Zulkardi Zulkardi Zulkardi