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Comparison of ARIMA and GRU Models for High-Frequency Time Series Forecasting. Ridwan, Mochamad; Sadik, Kusman; Afendi, Farit Mochamad
Scientific Journal of Informatics Vol 10, No 3 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v10i3.45965

Abstract

Purpose: The purpose of this research is to assess the efficacy of ARIMA and GRU models in forecasting high-frequency stock price data, specifically minute-level stock data from HIMBARA banks. In time series analysis, time series data exhibit interesting interdependence among observations. Despite its popularity in time series forecasting, the ARIMA model has limitations in capturing complicated nonlinear patterns. Forecasting high-frequency data is becoming more popular as technology advances and more high-frequency data becomes available.Methods: In this study, we compare the ARIMA and GRU models in forecasting minute-level stock prices of HIMBARA banks. The data used consists of 62,921 minute-level stock data points for each bank in the HIMBARA group, collected in the year 2022. The GRU model was chosen because it is capable of capturing complex nonlinear patterns in time series data. Each method's predicting performance is assessed using the Mean Absolute Percentage Error (MAPE) statistic.Results: In terms of forecasting accuracy, the GRU model outperforms the ARIMA model. The GRU model achieves a MAPE of 0.77% for BMRI stock, while the ARIMA model achieves a MAPE of 4.09%. The GRU model predicts a MAPE of 0.34% for BBRI stock, while the ARIMA model predicts a MAPE of 3.02%. For BBNI stock, the GRU model obtains a MAPE of 0.63%, while the ARIMA model achieves a MAPE of 1.52%. The GRU model achieves a MAPE of 0.58% for BBTN stock, while the ARIMA model achieves a MAPE of 6.2%.Novelty: In terms of minute-level time series data modeling, research in Indonesia has been limited. This study adds a new perspective to the discussion by comparing two modeling approaches: the traditional ARIMA model and the sophisticated deep learning GRU model, both of which are applied to high-frequency data. Beyond the present scope, there are several promising future directions to pursue, such as anticipating intraday stock fluctuations. This unexplored zone not only contributes to the field of financial modeling but also has the ability to uncover intricate patterns in minute-level data, an area that has not been extensively studied in the Indonesian context.
Physical activity motivation as predictors of body mass index and fitness: A cross-sectional study Pratiwi, Alfina Diva; Siantoro, Gigih; Wibowo, Sapto; Ridwan, Mochamad; Schwerer, Leon
Jurnal Pendidikan Jasmani Indonesia Vol. 21 No. 2 (2025)
Publisher : Departement of Sports Education, Faculty of Sport Sciences Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpji.v21i2.89854

Abstract

Abstrak: Penelitian ini bertujuan untuk menganalisis pengaruh motivasi aktivitas fisik terhadap IMT dan kebugaran jasmani siswa. Desain penelitian menggunakan pendekatan kuantitatif cross-sectional. Populasi penelitian diambil dari SMA di Kota Surabaya dengan jumlah sampel sebanyak 66 siswa yang dipilih secara purposive sampling. Data dikumpulkan melalui kuesioner motivasi aktivitas fisik (RM4-FM) serta pengukuran langsung terhadap IMT dan kebugaran jasmani menggunakan instrumen dari kemenpora yaitu Tes Kebugaran Pelajar Nasonal (TKPN). Analisis data dilakukan melalui statistik deskriptif, uji asumsi klasik, dan regresi multivariat (GLM Multivariate) dengan bantuan perangkat lunak SPSS. Hasil penelitian menunjukkan bahwa motivasi berpengaruh signifikan terhadap IMT (F = 9,681; p = 0,003; R² = 0,131) dan kebugaran jasmani (F = 6,089; p = 0,016; R² = 0,087). Uji multivariat (Pillai’s Trace = 0,131; F = 4,765; p = 0,012) juga mengonfirmasi bahwa motivasi secara simultan memengaruhi kedua variabel dependen. Dengan demikian, motivasi terbukti berperan penting dalam menjaga IMT yang seimbang serta meningkatkan kebugaran jasmani siswa melalui aktivitas fisik yang teratur. Temuan ini memberikan implikasi bahwa peningkatan motivasi dapat dijadikan strategi penting dalam program pendidikan jasmani dan intervensi kesehatan sekolah untuk mendukung gaya hidup aktif pada remaja. Abstract: This study aims to analyze the effect of physical activity motivation on BMI and physical fitness of students. The research design used a quantitative cross-sectional approach. The study population was taken from high schools in Surabaya City with a sample of 66 students selected by purposive sampling. Data were collected through a physical activity motivation questionnaire (RM4-FM) and direct measurements of BMI and physical fitness using an instrument from the Ministry of Youth and Sports, namely the National Student Fitness Test (TKPN). Data analysis was carried out through descriptive statistics, classical assumption tests, and multivariate regression (GLM Multivariate) with the help of SPSS software. The results showed that motivation had a significant effect on BMI (F = 9.681; p = 0.003; R² = 0.131) and physical fitness (F = 6.089; p = 0.016; R² = 0.087). Multivariate testing (Pillai's Trace = 0.131; F = 4.765; p = 0.012) also confirmed that motivation simultaneously influenced both dependent variables. Thus, motivation plays a significant role in maintaining a balanced BMI and improving students' physical fitness through regular physical activity. These findings suggest that enhancing motivation can be an important strategy in physical education programs and school health interventions to support active lifestyles in adolescents.
Mewujudkan Kemandirian Ekonomi Keluarga melalui Pelatihan Pengelolaan Keuangan bagi Penerima PKH di Kecamatan Muara Bangkahulu Kota Bengkulu Apriyanti, Cikit; Ridwan, Mochamad; Yusnida; Kumara, Bima Prasetya; Octarrum, Devina
Kreativasi : Journal of Community Empowerment Vol. 4 No. 2 (2025): Vol.4 No. 2, 2025 :September 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/kreativasi.v4i2.45898

Abstract

This community service activity aims to improve literacy and household financial management skills for recipients of the Family Hope Program (PKH) in Muara Bangkahulu District, Bengkulu City. Through educational activities and hands-on practice, participants are expected to be able to manage aid funds more productively in order to achieve family economic independence. The implementation methods included socialization, material delivery, interactive discussions, case studies, as well as financial recording and household budget preparation exercises. The results of the activity showed an increase in participants' understanding of the importance of financial planning, discipline in recording cash flow, and the ability to allocate assistance funds for productive activities. This activity also motivated participants to start saving and developing small businesses
Mindfulness Training sebagai Strategi untuk Meningkatkan Akurasi dan Konsistensi Passing dalam Latihan Futsal Ekstrakurikuler Dewantoro, Nova Dwi; Priambodo, Anung; Ridwan, Mochamad
Journal of SPORT (Sport, Physical Education, Organization, Recreation, and Training) Vol 9, No 3 (2025): Journal of S.P.O.R.T
Publisher : Pendidikan Jasmani Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/sport.v9i3.16948

Abstract

AbstrakPenelitian ini bertujuan untuk mengetahui efektivitas intervensi mindfulness dalam latihan futsal terhadap peningkatan akurasi dan konsistensi passing pada peserta ekstrakurikuler di SD Negeri 1 Balong, Kecamatan Balong, Kabupaten Ponorogo. Metode yang digunakan Quasi-eksperimen desain pretest-posttest. Subjek penelitian berjumlah 20 siswa yang mengikuti ekstrakurikuler futsal secara rutin. Intervensi dilakukan melalui latihan teknik passing segitiga dan passing ke dinding tembok yang dipadukan dengan teknik mindfulness. Hasil pengujian menunjukkan adanya perbedaan yang signifikan antara nilai pretest dan posttest, baik pada kelompok latihan passing segitiga (Z=-3,745; p=0,000) maupun passing ke dinding tembok (Z=-3,746; p=0,000). Hasil ini menunjukkan bahwa intervensi mindfulness mampu meningkatkan performa passing siswa baik dari segi akurasi maupun konsistensi. Sehingga intervensi mindfulness dalam latihan futsal merupakan pendekatan yang efektif untuk mengembangkan keterampilan teknik dasar passing pada siswa sekolah dasar dan memberikan implikasi positif terhadap pengembangan program pelatihan olahraga berbasis psikologis dalam pendidikan dasar.Kata kunci: mindfulness, futsal, passing, akurasi, konsistensi, ekstrakurikuler. AbstractThis study aims to determine the effectiveness of mindfulness intervention in futsal training on improving passing accuracy and consistency among extracurricular participants at SD Negeri 1 Balong, Balong District, Ponorogo Regency. The research employed a quasi-experimental method with a pretest–posttest design. The subjects consisted of 20 students who regularly participated in futsal extracurricular activities. The intervention was carried out through triangle passing and wall passing drills combined with mindfulness techniques.The test results showed a significant difference between pretest and posttest scores in both the triangle passing group (Z = -3.745; p = 0.000) and the wall passing group (Z = -3.746; p = 0.000). These findings indicate that the mindfulness intervention effectively improved students’ passing performance in terms of both accuracy and consistency. Therefore, mindfulness intervention in futsal training can be considered an effective approach for developing basic passing skills among elementary school students and provides positive implications for the development of psychology-based sports training programs in primary education.Keywords: mindfulness, futsal, passing, accuracy, consistency, extracurricular
Studi Pengaruh Penggunaan Air Payau Dari Pesisir Kabupaten Gresik Dan Lamongan Pada Campuran Beton Terhadap Kuat Tekan Ridwan, Mochamad; Mahmudi, Agus; Maulana Malik, Aditya
INTER TECH Vol 3 No 2 (2025): INTER TECH
Publisher : Fakultas Teknik Universitas Bhayangkara Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/i.v3i2.1660

Abstract

Beton merupakan bahan bangunan komposit yang terbentuk dari campuran semen, agregat halus, agregat kasar dan air. Pada umumnya di rancang untuk konstruksi bagian bawah maupun konstruksi bagian atas. Air payau merupakan campuran air tawar dan air laut (air asin). Terdapat kandungan garam dalam satu liter air yaitu antara 0,5 sampai 30 gram, maka bisa disebut juga dengan air payau. Pada penelitian ini menggunakan air payau dari 2 tempat berbeda yakni air payau karang kering, Kab. Gresik dan pantai lorena, Kab. Lamongan dengan total benda uji 45 sampel. Pengujian kuat tekan beton pada umur 3,7,14,21,dan 28 hari. Diameter silinder 15 cm dan 30 cm, dengan mutu beton yang direncanakan f’c = 20 Mpa. Hasil pengujian beton normal memiliki kuat tekan 23,72 Mpa, beton dengan campuran air payau Lamongan memiliki kuat tekan 19,42 Mpa. Sedangkan air payau Gresik memiliki kuat tekan beton 18,21 Mpa
Peningkatan literasi gizi siswa SMP melalui media interaktif canva dalam pembelajaran PJOK Sharma, Muhammad Rexi; Ridwan, Mochamad
Bravo's: Jurnal Program Studi Pendidikan Jasmani dan Kesehatan Vol 13 No 4 (2025): Bravo's: Journal of Physical Education and Sport Science
Publisher : Physical Education Departement of University PGRI Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32682/bravos.v13i4/223

Abstract

Latar Belakang Masalah: Kurangnya kesadaran dan pemahaman pada remaja dalam hal literasi gizi, khususnya dalam hal memahami label makanan yang tertera pada produk makanan menjadi permasalahan yang terjadi saat ini. Rendahnya kemampuan memahami label gizi dapat menyebabkan pemilihan makanan yang tidak sehat dan berdampak pada risiko penyakit degeneratif. Tujuan penelitian ini adalah mengetahui efektivitas penggunaan media pembelajaran interaktif Canva terhadap peningkatan pemahaman label makanan pada siswa Sekolah Menengah Pertama. Pendekatan kuatitatif dipilih pada penelitian ini, dengan menggunakan desain pre-experimental one group pretest posttest, yang melibatkan 62 siswa pada jenjang kelas VIII di salah satu SMP Negeri yang ada di Kabupaten Sidoarjo. Instrumen penelitian ini menggunakan kuesioner Newest Vital Sign (NVS) yang terdiri dari enam pertanyaan untuk mengukur kemampuan literasi gizi siswa. Uji Wilcoxon digunakan dengan bantuan program IBM SPSS 25 untuk menganalisis data yang diperoleh selama penelitian. Hasil: Hasil penelitian menunujukkan adanya peningkatan skor yang signifikan pada kemampuan literasi gizi siswa, nilai pretest (2,31) setelah diberikan perlakuan menggunakan media Canva selama empat pertemuan, nilai posttest meningkat menjadi (4,98). Media pembelajaran Canva terbukti efektif dalam meningkatkan kemampuan siswa dalam memahami label makanan melalui penyajian visual dan fitur yang interaktif. Kesimpulan: Kesimpulan pada penelitian ini menyatakan media pembelajaran Canva mampu memberikan pengaruh yang positif terhadap peningkatan kemampuan literasi gizi siswa, khususnya dalam hal memahami label makanan yang tertera pada produk kemasan.
Pengaruh active learning terhadap hasil belajar passing bawah bola voli pada siswa SMP Kurnia, Daniela Putri; Yulfadinata, Afifan; Ridwan, Mochamad; Ningsih, Yuni Fitriyah; Prihanto, Junaidi Budi
Bravo's: Jurnal Program Studi Pendidikan Jasmani dan Kesehatan Vol 14 No 1 (2026): Bravo's: Journal of Physical Education and Sport Science
Publisher : Physical Education Departement of University PGRI Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32682/bravos.v14i1/232

Abstract

The low learning outcomes of students at MTsN 2 Sidoarjo in the subject of underhand passing in volleyball, with only 6.67% of students achieving the minimum passing grade, demonstrate the importance of implementing more effective learning methods that can increase student engagement. The main objective of this study was to determine the effectiveness of the Active Learning Method in teaching underhand passing in volleyball. This study used a quasi-experimental design based on the Nonequivalent Control Group Design model. The study involved two classes selected using purposive sampling, one group with 32 students for the experimental group and the other with 32 students for the control group. The pre-test and post-test results in this study used the same instrument, namely the underhand passing skill test. In this study, the t-value was -0.252 and the p-value was 0.802, both of which were much higher than the level of 0.05. The pre-test scores did not show a significant difference, so both groups had equivalent initial abilities. The experimental group showed a statistically significant improvement after the procedure, producing a post-test score of 55.91, while the control group scored 31.91. The results of the paired sample t-test and independent sample t-test showed that the Active Learning Method significantly improved underhand passing skills. Based on these results, it was concluded that active learning is superior to conventional methods because it allows students to collaborate, receive feedback on their skills, and engage in hands-on practice. Further research should examine alternative learning methods related to sports and include additional factors, such as student engagement and participation, to achieve a more comprehensive understanding of the importance of active learning
Pengaruh Pendekatan Permainan Yang Menyenangkan Terhadap Motivasi Peserta Didik Dalam Pembelajaran PJOK Suwandi, Muhammad; Ridwan, Mochamad; Muhammad, Heryanto Nur
SPORTIVE: Journal Of Physical Education, Sport and Recreation Vol. 10 No. 1 (2026): 30 Maret 2026
Publisher : Prodi Pendidikan Jasmani dan Olahraga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/87024a58

Abstract

Physical Education (PJOK) learning often faces low student motivation due to monotonous conventional approaches. This study analyzed the effectiveness of a fun game approach through quantitative methods with a quasi-experimental one-group pretest–posttest design on 30 students over five weeks. Data were collected using a Likert-scale motivation questionnaire and analyzed using a paired sample t-test. The results showed a 41.09% increase in motivation, from an average of 67.23 to 94.87, with a very large effect size (Cohen's d = 3.42; p < 0.05). Ninety percent of students achieved high motivation after the intervention, compared to only 6.67% at the beginning of the study. The game approach was deemed effective because it was able to fulfill basic psychological needs according to Self-Determination Theory, especially aspects of competence and social relatedness. The integration of game elements such as tiered challenges, healthy competition, team collaboration, and a reward system successfully created a more engaging and enjoyable learning atmosphere. These findings provide practical references for PJOK teachers in designing innovative learning to increase students' motivation and positive attitudes towards physical activity.
Innovation in Fiberglass Ship Assembly: Social-Economic and Entrepreneurship Study of Coastal Communities Ridwan, Mochamad; Yarsah, Waldi Novi
Jurnal AGRISEP JURNAL AGRISEP VOL 23 NO 01 2024 (MARCH)
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jagrisep.23.01.129-144

Abstract

The problem of low performance of fishing communities in producing capture fisheries is generally related to the low quality of the capital ships used. This research aims to reveal the factors that caused the emergence of innovation in the business of assembling fiberglass fishing ships, the level of business development, and its impact on improving the socio-economic performance of fishing communities in rural areas. The research sample included small fishing communities and a group of fishermen who had built a business assembling fiberglass fishing ships in Bengkulu Selatan Regency. Because the data collected is mostly in the form of qualitative data, the analysis method used is a descriptive-qualitative method supported by statistical analysis methods. The results indicate that the emergence of innovation in assembling fiberglass fishing ships is driven by evidence highlighting the superior quality of fiberglass over wood in ship construction. The growth of the fiberglass ship assembly business is evident through its expanding market reach and increased sales turnover. Qualitatively, the study demonstrates that the innovation in assembling fiberglass ships has a positive impact on the socio-economic performance of fishermen, manifested through improved workability, heightened work motivation, and increased capture fisheries production. Three key recommendations emerge from the findings: (1) Stakeholders should consistently support the sustainability of fiberglass ship assembly businesses; (2) Relevant agencies are encouraged to actively contribute to the substantial development of the fiberglass ship assembly sector; and (3) Fishing communities greatly benefit from socialization, empowerment, literacy, and education programs.
Meningkatkan Motivasi Siswa Melalui Penerapan Small Sided Games Ridwan, Mochamad
Journal Sport Area Vol 5 No 2 (2020): December
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/sportarea..vol().4873

Abstract

Students feel bored when the teaching approach is monotonous and unchanging, making it essential for Physical Education, Sports, and Health (PJOK) teachers to provide variations in the learning process. Therefore, this study aims to determine student motivation in football material by implementing small-sided games. A descriptive and quantitative research method with a school survey approach was employed, while the data was collected by using questionnaires distributed to 49 students. Then, data analysis was performed by using descriptive statistics in the editing, coding, and scoring stages. The results showed that two and four students had 4.1% and 28.6%, meaning they had very low and low motivation to follow the football material. Eighteen students scored 36.7%, nine had 18.4%, while six scored 12.2%, which means they had sufficient, high, and very high motivation. Therefore, the study results concluded that giving small-sided games made students' motivation to follow football material more suitable. Furthermore, a study with more extensive and varied sample sizes was recommended to discover other solutions to the problem.
Co-Authors Abdullah, Khairul Hafezad Adelina Dhinik Puspitasari Afandi, Mokh Salis Agista, Yeskia Yudiana Ahmedov, Farruh Akbar, M. Khoirul Anggara, Jaka Anung Priambodo Aprilia, Ema Apriyanti, Cikit Ardiyansyah, Nabilah Fafriliani Bayu Budi Prakoso Cendana, Wiputra Demir, Gí¶ní¼l TekkurÅŸun Dewantoro, Nova Dwi Dopong, Maulana Malik Dwi Cahyo Kartiko Dwi Purwanto, Bagus Edi Setiawan Edi Supriyadi Elizabeth Yohanes Fadhila, Saptania Farit Mochamad Afendi Fernanda, Alfina Wahyu Firmansyah Prawironastro, Muhammad Bagas Gazali, Novri Gazali, Zeinol Gigih Siantoro Gusti Noorlitaria Achmad Hadistyana Mutiarahmi Hari Wisnu, Hari Hartati, Merri Sri HASANAH APRILIA, NISWATIN Heryanto Nur Muhammad Hofmeister, Martin Hutapia IRMA FEBRIYANTI Ishak, Asmadi Ismail, Ghulam Zaky Juheri Jumareng, Hasanuddin Juniarisca, Dwi Lorry Juniarto, Pudji Kumara, Bima Prasetya Kurnia, Daniela Putri Kusman Sadik Kusuma, Sagita La Ode Ahmad Safar Tosungku, La Ode Ahmad Safar Lesmana, Diky Mahmudi, Agus Mardiansyah, Oktyanus Maulana Malik, Aditya Maulana, Bagus Yudha Dwi Maulidya, Ayu Ningrum Mochamad Afif Baihaqi Mubarok, Muhammad Azmy Mudzaky, Azhar Nurin Muhaiminul Aziz, Aat Mujtahidin, Afiq Hakim Ningsih, Yuni Fitriyah Noorfitri, Karin Cetta Putri Nurokhman, Muhammad Habibu Octarrum, Devina Pelupessy, Yohanes Kristopel Pratiwi, Alfina Diva Prawisma, Tri Jaka Setiyo Prihanto, Junaidi Budi R Dimas Adityo Rahma Ndhanni, Alvina Rahman, Rizky Mulia Rani Sugiarni Romi Gunawan, Romi Sapto Wibowo Schwerer, Leon Sharma, Muhammad Rexi Sholikhah, Anindya Mar'atus Siskha Putri Sayekti Sofiansyah, Agus Sri Panca Setyawati Suhada, Umi Suryaninungrum, Anis Suwandi, Muhammad Taufiq Hidayat Theresia Amelia Pawitra Trisnawati, Silva Ayu Tuasikal, Abdul Rahman Syam Twiska Naufal Arsyah Ghiffari Vega Candra Dinata Waldi Novi Yarsah Wardoyo, Tri Yovhandra Ockta Yulfadinata, Afifan Yulianto, Achmad Yusnida Zhuka, Erika Mahardini