Garuda - Garba Rujukan Digital

EEG signal classification for drowsiness detection using wavelet transform and support vector machine Novie Theresia Br. Pasaribu; Timotius Halim; Ratnadewi Ratnadewi; Agus Prijono
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 10, No 2: June 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v10.i2.pp501-509

There are several categories to detect and measure driver drowsiness such as physiological methods, subjective methods and behavioral methods. The most objective method for drowsiness detection is the physiological method. One of the physiological methods used is an electroencephalogram (EEG). In this research wavelet transform is used as a feature extraction and using support vector machine (SVM) as a classifier. We proposed an experiment of retrieval data which is designed by using modified-EAR and EEG signal. From the SVM training process, with the 5-fold cross validation, Quadratic kernel has the highest accuracy 84.5% then others. In testing Driving-2 process 7 respondents were detected as drowsiness class, and 3 respondents were detected as awake class. In the testing of Driving-3 process, 6 respondents were detected as drowsiness class, and 4 respondents were detected as awake class.

PENDAMPINGAN PEMBELAJARAN NODEMCU MENYONGSONG ERA REVOLUSI MASYARAKAT 5.0 PADA SISWA SMA X DI KOTA BANDUNG Ratnadewi Ratnadewi; Yohana Susanthi; Agus Prijono; Tio Dewantho S; Clarence Amadeus
JMM (Jurnal Masyarakat Mandiri) Vol 4, No 1 (2020): Maret
Publisher : Universitas Muhammadiyah Mataram

Abstrak: Menyongsong era revolusi masyarakat 5.0 generasi muda perlu dibekali dengan ilmu pengetahuan yang bermanfaat pada waktu yang akan datang. Hal ini yang menjadi dasar dilakukan pendampingan pembelajaran NodeMCU sebagai salah satu perangkat Internet of Things yang berguna untuk mengendalikan perangkat dari perangkat mobile atau perangkat komputer jarak jauh. Evaluasi hasil pendampingan digunakan dua cara yaitu, metode survey dan participatory action research. Pendampingan diikuti oleh 43 siswa-siswi SMA X di Bandung selama dua hari. Hasil kuesioner pertama dan kedua setelah dibandingkan terdapat peningkatan pemahaman sebelum dan sesudah mentorship sebesar 20%-25% yang diperoleh dari persentasi siswa yang menjawab benar materi kuesioner. Sedangkan hasil kuesioner ketiga diperoleh pencapaian kepuasan siswa rata-rata di atas 3 yang berarti siswa merasa penyampaian materi, fasilitas, dan kualitas kegiatan pendampingan bernilai ”baik”. Abstract: Toward the era of revolution in society 5.0 young generations need to be equipped with useful knowledge in the future. This is the basis for NodeMCU learning mentorship as one of the Internet of Things devices that is useful for controlling devices from mobile devices or remote computer peripheral. The evaluation results of the mentorship are used in two ways that are survey methods and participatory action research. The mentorship was attended by 43 students of SMA X in Bandung for two days. The results of the first and second questionnaires after comparison have increased understanding before and after mentorship by 20% - 25% obtained from the percentage of students who answered the questionnaire material correctly (Figure 6). While the results of the third questionnaire obtained an average achievement of student satisfaction above 3, which means students feel the delivery of material, facilities, and the quality of mentoring activities is worth "Good".

BAHASA RUPA MOTIF BATIK CIAMIS MELALUI PROGRAM LINDENMAYER SYSTEMS Ratnadewi Ratnadewi; Ariesa Pandanwangi; Agus Prijono
Jurnal Bahasa Rupa Vol. 5 No. 1 (2021): Jurnal Bahasa Rupa Oktober 2021
Publisher : LPPM Institut Bisnis dan Teknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/bahasarupa.v5i1.961

West Java has a centre for craftsmen who have a variety of motifs drawn from their regional potential. One of them is Ciamis batik, but now with the pandemic of the Corona 19 virus, it has had a tremendous impact on the macro and micro industrial economy in the development of the batik business. More and more are stopping their business. So it is feared that Ciamis batik motifs are increasingly rare in the market. Through Turtle graphics, existing batik motifs are made in the form of vector images to be preserved by utilizing digital technology. This research has the aim to that the Ciamis batik motif can be made into a visual language through the digitalization process using the MuPAD programming language. The benefit is to document and reintroduce Ciamis Batik motifs that are almost extinct. The method used is a digitalization experiment through the Lindenmayer System. Ciamis batik samples selected motifs that have repetition in the form of a repeating pattern. Based on the research, the Ciamis batik motif can be made using the technique of arches, horizontal lines, vertical lines, and rotation. The conclusion of this research is that batik motif design can use the Lindenmayer System program as a blueprint and can be implemented on Indonesian batik. This research contributes to the efficient documentation of batik motifs in digital form with good quality so that they can be implemented in the creative industry.

Generative Art sebagai Pembentuk Motif Geometris Ariesa Pandanwangi; Agus Prijono; Ratnadewi Ratnadewi
Ideas: Jurnal Pendidikan, Sosial dan Budaya Vol 8 No 4 (2022): Ideas: Pendidikan, Sosial, dan Budaya (November)
Publisher : Ideas Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32884/ideas.v8i4.959

Designing motifs is still mostly done manually, using a pencil and then drawing on paper. The purpose of this research is to offer a solution in making geometric motifs by utilizing algorithmic art produced through computer technology. This method is a combination of the use of algorithmic art and the design used in making geometric motif designs. Algorithmic Art is a subset of generative art that is the result of an algorithmic process and is designed by the artist and usually uses a random process to generate variations based on external input. The results of this study are geometric motifs using the algorithmic art method. Geometric motifs can be applied to fabrics, decorations, and others.

Designing a wireless robot plotter as a supporting tool for understanding logical thinking Aan Darmawan H; Ratnadewi Ratnadewi; Agus Prijono
Jurnal Mantik Vol. 7 No. 1 (2023): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i1.3640

OSTR stands for Open Source Turtle Robot is a turtle robot whose hardware and software are open source and published by MakersBox located in Adair Village, OR, United States of America. In this study OSTR will be developed into an Wireless Robot Plotter that can draw and write and is equipped with computer software to support the needs of the learning process in understanding logical thinking for students. In this study, a wireless Robot Plotter design has been successfully designed to support students' understanding of logical thinking. A logical thought in the form of syntactic logic steps "turtle graphics" is inserted into the application interface (created in visual basic language), then the logic steps are translated in the form of an image that can be viewed on the monitor screen and sent wirelessly to the Robot Plotter (using nodeMCU ESP8266-12 as the processor) to be drawn by the Robot Plotter. From the tests, the realized wireless Robot Plotter successfully drew according to the logic steps instructed through the created interface application. The research urgency is to train logical thinking by designing a robot plotter so that abilities and skills are sharpened and the plotter robot used to draw basic batik motifs can be utilized by the creative industry.

Pelatihan Daring Robotika bagi Siswa dan Guru di Sekolah Menengah Atas Kristen Yahya Bandung Ratnadewi; Muliady; Agus Prijono; Aan Darmawan Hankawidjaja; Christian Felix
Jurnal Pemberdayaan Masyarakat Vol 8 No 1 (2023): Mei
Publisher : Direktorat Penelitian dan Pengabdian kepada Masyarakat (DPPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/jpm.v8i1.6164

During the era of adapting to new habits after the Covid-19 pandemic, on-line learning needs to be done, considering the problem of the spread of Covid-19 in Indonesia. Learning to improve logical thinking skills and abstraction skills is needed by high school students. This can be done by providing online robotics training. so that teaching and learning activities are still carried out online, and there is also a need for knowledge about robotics for students and teachers at SMAK Yahya. The implementation of this activity will be carried out online and will be accompanied by selected instructors who have been tested for their abilities in robotics. The results of this service are expected that participants can practice on their own about robotics, can train logical thinking, and can improve abstraction skills. Based on the results of the questionnaire obtained, it can be concluded that there was an increase of 30%-40%. Students who initially had 0% of knowledge about VEX robot programming increased to 30%-40%, of course this is still not satisfactory, but is expected to be able to provide basic knowledge about VEX robots. Need further learning that is more in-depth, because the capacity of each student is different, and the provision of supporting devices is also inadequate.

Pelatihan Kecerdasan Buatan bagi Siswa-siswi SMKN-4 Bandung Ratnadewi Ratnadewi; Heri Andrianto; Riko Arlando Saragih; Agus Prijono; Tio Dewantho Sunoto; Yohana Susanthi; Judea Janoto Jarden
AKM Vol 4 No 1 (2023): AKM : Aksi Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat - Juli 2023
Publisher : Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36908/akm.v4i1.839

Salah satu bidang ilmu dari Teknik Elektro yang dikenal adalah kecerdasan buatan yang sudah berkembang pesat dan banyak digunakan oleh masyarakat pada saat ini. Pembekalan mengenai keilmuan Teknik Elektro khususnya kecerdasan buatan perlu disosialisasikan kepada para siswa-siswi agar mereka memahami lingkup dan aplikasi ilmu dari bidang Teknik Elektro dalam masyarakat. Metode pelaksanaan pelatihan yang digunakan adalah service learning, yaitu siswa-siswi SMKN-4 Bandung diberi pelatihan agar lebih memahami tentang kecerdasan buatan, machine learning, deep learning serta pengetahuan tentang computer vision dan materi tentang NLP (Natural Language Processing). Sebelum dan setelah pelatihan peserta diminta mengikuti kuis untuk mengetahui tingkat pengetahuan meraka. Hasil kuis menunjukkan bahwa dari test pertama terjadi peningkatan pengetahuan rata-rata sebesar 36 point, sedangkan untuk test kedua terjadi peningkatan pengetahuan rata-rata sebesar 50 point, berikutnya pada test ketiga terjadi peningkatan pengetahuan rata-rata 37 point.

Pelatihan Pembuatan Poster dan Video yang Di-upload di Media Sosial Ratnadewi Ratnadewi; Heri Andrianto; Agus Prijono; Yohana Susanthi; Herawati Yusuf; Erwani Merry Sartika; Riko Arlando Saragih; Aan Darmawan Hangkawidjaja; Novie Theresia Br. Pasaribu; Daniel Setiadikarunia; Tio Dewantho Sunoto
AKM Vol 5 No 1 (2024): AKM : Aksi Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat - Juli 2024
Publisher : Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36908/akm.v5i1.971

Dalam era digital yang terus berkembang saat ini, kemampuan untuk mempromosikan diri melalui video dan poster menjadi semakin penting. Pembuatan video dan poster adalah salah satu aplikasi bidang ilmu dari Teknik Elektro yang sering digunakan pada pengajaran, penelitian, dan abdimas. Pembuatan video dan poster sangat penting untuk berbagai kegiatan di masyarakat saat ini. Pada kegiatan pengabdian kepada masyarakat ini telah dilakukan pelatihan dan praktik pembuatan video dan poster, yang dimulai dari dasar pembuatan, sampai kepada upload dan publikasi di media sosial. Sasaran mitra yang diberi pelatihan adalah Forum Komunikasi Partisipasi Publik untuk Kesejahteraan Perempuan dan Anak Provinsi Jawa Barat (FORKOM PUSPA PROVINSI JABAR). Kegiatan ini bertujuan untuk meningkatkan pengetahuan dan keterampilan praktis dalam menciptakan video dan poster yang menarik. Video dan poster merupakan sarana yang efisien dan efektif untuk mempromosikan diri, mensosialisasikan visi dan misi serta program kerja kepada masyarakat. Metode pelaksanaan kegiatan menggunakan service learning, yaitu peserta diberi pelatihan dan pengabdi membantu mendampingi pembelajaran peserta pada saat praktik, sehingga dengan bergabungnya FORKOM PUSPA PROVINSI JABAR dan pengabdi diharapkan dapat mengedukasi anggota FORKOM PUSPA PROVINSI JABAR. Dari analisis hasil rata-rata skor dapat disimpulkan bahwa pengetahuan peserta masih perlu ditingkatkan lagi dengan terus mengasah kemampuan baik secara teori maupun praktik dan secara umum dapat dikatakan bahwa penyelenggaraan kegiatan pengabdian kepada masyarakat ini sudah memenuhi kepuasan para pesertanya.

BAHASA RUPA MOTIF BATIK CIAMIS MELALUI PROGRAM LINDENMAYER SYSTEMS Ratnadewi Ratnadewi; Ariesa Pandanwangi; Agus Prijono
Jurnal Bahasa Rupa Vol. 5 No. 1 (2021): Jurnal Bahasa Rupa Oktober 2021
Publisher : Prahasta Publisher (manage by: DRPM Institut Bisnis dan Teknologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/bahasarupa.v5i1.961

West Java has a centre for craftsmen who have a variety of motifs drawn from their regional potential. One of them is Ciamis batik, but now with the pandemic of the Corona 19 virus, it has had a tremendous impact on the macro and micro industrial economy in the development of the batik business. More and more are stopping their business. So it is feared that Ciamis batik motifs are increasingly rare in the market. Through Turtle graphics, existing batik motifs are made in the form of vector images to be preserved by utilizing digital technology. This research has the aim to that the Ciamis batik motif can be made into a visual language through the digitalization process using the MuPAD programming language. The benefit is to document and reintroduce Ciamis Batik motifs that are almost extinct. The method used is a digitalization experiment through the Lindenmayer System. Ciamis batik samples selected motifs that have repetition in the form of a repeating pattern. Based on the research, the Ciamis batik motif can be made using the technique of arches, horizontal lines, vertical lines, and rotation. The conclusion of this research is that batik motif design can use the Lindenmayer System program as a blueprint and can be implemented on Indonesian batik. This research contributes to the efficient documentation of batik motifs in digital form with good quality so that they can be implemented in the creative industry.

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