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Metode Linear Regression, ARIMA, dan Neural Network Dalam Prediksi Harga Saham: Sebuah Meta-Analisis Erina Salsabila Ashri; Syaharuddin Syaharuddin; Baiq Lukita Rauhul Mardatillah
Indonesian Journal of Engineering (IJE) Vol. 2 No. 2 (2022): Edisi Maret
Publisher : Fakultas Teknik Universitas Nahdlatul Ulama Nusa Tenggara Barat

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Abstrak: Prediksi harga saham atau stock price prediction adalah harga yang telah ditetapkan kepada suatu perusahaan bagi pihak lain yang ingin memiliki hak kepemilikan saham. Nilai harga saham selalu berubah-ubah setiap waktu. Oleh sebab itu, tujuan dari penelitian meta-analisis ini adalah menganalisis kembali penelitian-penelitian yang berkaitan dengan prediksi harga saham. Data yang dikumpulkan dari database pengindeks sebanyak 36 data. Hasil analisis data menunjukkan bahwa tingkat akurasi menggunakan metode linier regression, ARIMA dan Neural Network berturut-turut sebesar 1.29%, 1.51% dan 1.23%. Abstract: Stock price prediction or stock price prediction is the price that has been set to a company for other parties who want to have share ownership rights. The value of the stock price is constantly changing all the time. Therefore, the purpose of this meta-analysis research is to reanalyze research related to stock price predictions. Data collected from the indexing database as much as 36 data. The results of the data analysis showed that the accuracy rate using linear regression, ARIMA and Neural Network methods was 1.29%, 1.51% and 1.23% respectively.
Perbandingan Metode Newton Midpoint Halley, Metode Olver dan Metode Chabysave Dalam Penyelesaian Akar-Akar Persamaan Non-Linear Hani Yupita Salwa; Syaharuddin Syaharuddin; Linita Sulistina; Elin Nurmayanti; Amalia Rahmatin; Habibi Ratu Perwira Negara
Indonesian Journal of Engineering (IJE) Vol. 3 No. 1 (2022): Edisi September
Publisher : Fakultas Teknik Universitas Nahdlatul Ulama Nusa Tenggara Barat

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Abstrak: Persamaan non-linear kerap menjadi model matematika yang menggambarkan situasi dalam berbagai bidang, seperti bidang Teknik maupun bidang biologi. Penentuan akar penyelesaian persamaan non-linear menjadi hal yang perlu dikaji mengingat kartaktersitk dari persamaan tersebut tidak dapat diselesaikan dengan cara analitik. Tujuan dari penelitian ini adalah untuk mengetahui metode terbaik dalam menentukan akar-akar Persamaan Non-Linier. Metode penelitian dilakukan dengan membandingkan tiga metode, yaitu Metode Newton Midpoint Halley (NMH), Metode Olver, dan Metode Chebyshev dalam menyelesaikan persamaan non-linear berbentuk polinomial, trigonometri, eksponensial, dan campuran (trigonometri dan exponensial). Parameter simulasi menggunakan error sebesar 0.001. Hasil analisis diperoleh bahwa dari tiga metode yang digunakan, laju konvergensi tercepat dalam menentukan akar-akar persamaan non-linear (polinomial, trigonometri, eksponensial, campuran trigonometri dan exponensial) yaitu menggunakan metode Newton Midpoint Halley (NMH). sehingga metode terbaik dalam menyelsaikan akar-akar persamaan non-linear adalah metode Newton Midpoint Halley (NMH). Abstract: Non-linear equations often become mathematical models that describe situations in various fields, such as engineering and biology. Determining the roots of solving non-linear equations is something that needs to be studied considering that the characteristics of these equations cannot be solved by analytical means. The purpose of this research is to find out the best method for determining the roots of non-linear equations. The research method was carried out by comparing three methods, namely the Newton Midpoint Halley Method (NMH), Olver Method, and the Chebyshev Method in solving non-linear equations in the form of polynomials, trigonometry, exponentials, and mixtures (trigonometry and exponential). The simulation parameters use an error of 0.001. The results of the analysis show that of the three methods used, the fastest convergence rate in determining the roots of non-linear equations (polynomial, trigonometry, exponential, mixed trigonometry and exponential) is using the Newton Midpoint Halley (NMH) method. so that the best method for solving the roots of non-linear equations is the Newton Midpoint Halley (NMH) method.
Multi-Variable Agrometeorological Parameter Combination for Drought Early Warning System Using Hybrid SSA–AMBP Algorithm Rezaa, Syahrull; Muhammad Imam Dinata; Anggraini; Syaharuddin
Sinkron : jurnal dan penelitian teknik informatika Vol. 10 No. 2 (2026): Article Research April, 2026
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v10i2.15885

Abstract

Drought is one of the hydrometeorological disasters that has a significant impact on the agricultural sector, water availability, and food security, thus requiring an accurate and adaptive early warning system. This study aims to develop and evaluate a drought Early Warning System (EWS) model based on a combination of multi-variable agrometeorological parameters using a hybrid approach of Singular Spectrum Analysis (SSA) and Adaptive Model-Based Prediction (AMBP). The agrometeorological data used includes rainfall, air temperature, humidity, solar radiation, wind speed, and other supporting variables processed in the form of monthly time series over a period of ten years. The SSA method is used to perform signal denoising and extract dominant components from the data, while AMBP is applied as an adaptive predictive model to generate SPI-6 drought index forecasts. Model performance is evaluated using RMSE and the coefficient of determination (R²) in the model training and evaluation phases. The results show that the hybrid SSA–AMBP model has the best performance compared to single methods, with an RMSE value of 0.149 and R² of 0.983 in the model training phase, and an RMSE of 0.176 and R² of 0.941 in the model evaluation phase. In addition, the 2026 prediction results show a seasonal pattern with indications of a moderate dry period from October to November. These findings indicate that the developed model demonstrates relatively high predictive accuracy and stability based on RMSE and R² evaluation metrics within the SPI-6 dataset used in this study, and it has the potential to serve as a conceptual basis for decision-support in drought risk mitigation, water resource management, and sustainable agricultural planning.
Co-Authors -, Ibrahim - -, Mintasrihardi - Abdillah Abdillah Abdillah Abdillah Abdillah Abdillah Abdillah Abdillah Abdillah Abdillah Abdul Sakban Abdul Wahab Ade Ubaidah Adhiim Rizky, Abdul Adriyanto Adriyanto Agus Herianto Agus Kurniawan Agus Sapari, Lalu Adi Agustian, Bayu Agustina, Julianti Ahmad Ahmad Ahmad Ahmad Ahmad Hulaimi Ahmad Mizwar Ai Siti Nurmiati Aini, Kuratul Akhmad Syafruddin Alfiana Sahraini Alfira Mulya Astuti, Alfira Mulya Alia, Alia Alimin, Khairul Amalia Rahmatin Amina Tusaadia Amini, Ainin Amiruddin Ana Merdekawaty Anggita Denia Anggraini Annisa Aqodiah Aqodiah Ashraf, Hameed Astriyani Oktafian Atun Yulianto Aulia, Hartika Auliah, Jumratul Awaluddin Awaluddin Hasrin Ayu Hesti Azizah, Asma Azmiatun Solehah Bahmid Hasbullah Baiq Lukita Rauhul Mardatillah Bambang Subiyakto Biswadip Basu Mallik Burhanuddin Burhanuddin Chen Jihe David Hermansyah Dedy Iswanto Deni Apriansyah Desi Nadila Dewi Pramita Dewi Pramita Dewi Pramita Dhea Davina Dirganti Dian Eka Maya Sari Doni Dwiranata Donna Ekawaty Dwi Noorma Putri Dwi Rizki Muharani Eka Fitriani Eka Fitriani Elin Nurmayanti Elin Nurmyanti Emilia Silvana Sitompul Emilianus Jehadus Erina Salsabila Ashri Ersis Warmansyah Abbas Eta Susilawati Ningsih Etika Pujiana Evi Febriana Evi Febriana, Evi Fahresi M, A. Muh. Farhan Farah Heniati Santosa Farah Heniati Santosa Fatayah Fatayah Fatmawati, Fatmawati Febriani, Putri Ayu Febrita Susanti Fety Fejriani Fina Elisa Putri Fira Yuniar Fitri Fitri Gervas, Hamenyimana Emanuel Habib Ratu Perwira Negara Habibi Ratu Perwira Negara Halda Nor Halisa Hani Subakti Hani Yupita Salwa Harimansyah, Reza Hendri Gunawan Herawati, Baiq Candra Hermansyah, David Herry Porda Nugroho Putro Herry Suprajitno Hidayah, Nurul Iman Hidayanti, Nur Fitri Himni Ruhmayanti Husnawati Agustina Husnul Buairi Buairi Husnul Yaqin Ibrahim Ibrahim Idris Parakkasi Ilham Ilham Imam Saputra Indah Rahmawati Intan Dwi Hastuti Intan Purnama Sari Irma Setiawan, Irma irwand irwandi Iswanto, Dedy Iwin Ardyawin Jauhari, Lutfi Jerito Pareira Jerito Pereira Kamaruddin Arsyad Kamula, Ega Ade Kasmin Kiki Riska Ayu Kurniawati, Kiki Riska Ayu Kikin Saradela Kirti Verma Kohar, Nanang Lailatul Hoyali Laksono Trisnantoro Lala Lalu Sucipto Leni Muharni Linda Linda Linita Sulistina Lutfiyatul Wahdah M. Gufran Ali M. Hendrawansyah M. Sobry M. Yamin Maemunah Maemunah Mahsup Mahsup Mahsup Mahsup Mahsup Mahsup Mahsup Mahsup, Mahsup Maimun Maimun Maimun Malik Ibrahim Malik Ibrahim Mardiyah Hayati Marzuki Marzuki Mas'ad Mas'ad Maujud, Fathul Maulana, M. Rizki Maulia Putri Mehmood, Saba Melani Putri Meyundasari, Maulidia Dwi Misratun Maiti Moh, Solehuddin Mohamad Iwan Fitriani Muhammad Arsyad Muhammad Fatteh Muhammad Hardiansyah Muhammad Imam Dinata Muhammad Khalis Ilmi Muhammad Nizaar Muhammad Rico Muhammad Salahuddin Muhammad Saleh Mukminah Mukminah Munandar, Muhammad Abdul Haris Muntu, Andi Tenri Sri Muslimin Muslimin Muslimin, Ikhwanul Mutiani Mutmainnah, Andi Muttahid Shah Nadila, Desi Ndiung, Sabina Ni Nengah Suarsini Ningsih, Nurul Hidayati Indra Noer Saudah Novi Yanti Sandra Dewi Nur Amar Fitrianti Nur Farida Nur Insani Nurdiani Azzahrah Nurfiati Nurfiati Nurhalimah, Atin Nurmiwati, Nurmiwati Nurul Hidayati Nurul Hikmah Nurul Hikmah Nurul Hikmah Nurul Lailatul Khusniyah Palloan, Agustinus Putri Nurfirani Rahaju, Rahaju Rahman, Yosi Solidatul Rahmawati Rahmawati Raihan, Zulasfiani Rakim Mansurah Ratni Purwasih Raza, Wasim Rezaa, Syahrull Rianto Rianto Rima Rahmaniah Rina Gustina Rini Anjani Rini, Widia Ripai Ripai Rippi Maya Rizky Eka Tuningsih, Johriah Rochgiyanti Rody Satriawan Rohayu H, Rina Rosada Rosada Rosada Rosada Ruslan B Ruslan, Rezky Rahma Saba Mehmood Saba Mehmood Saddam Saddam Sahara, Ani Sahraini, Alfiana Salma Salma Sangputri Sidik Saparwadi Saparwadi Saputri, Jesika Sari, Nur Indah Sari, Nursina Selmiana Salam Setiawati, Linda Mardiani Sholehah, Azmiatun Sintayana Muhardini Sirajuddin Sirajuddin Sirajuddin Sirajuddin Sirajuddin Siti Arfa Halisa Siti Fara Handayani Siti Fatimah Siti Hasanah Siti Raihanah Siti Soraya Sitti Fatimah Sangkala Sirate Sri Maryani Sri Mulyono Sri Rejeki Sry Wahyuningsih Suaema, Suaema Sucipto, Lalu Sucipto, Lalu Sudirman Sudriman Sumarlin Sumarni Sumarni Sumarti, Baiq Sumeet Goyal Supriadi Suraya Suraya Suvriadi Panggabean Suwanti, Vivi Syaifuddin Iskandar Syarifuddin Syarifuddin Tamur, Maximus Tatik Retno Murniasih Taufik Hidayat Tri Damayanty Syamsul Ummul Karyati Usman, Lalu Hamdi Valeria Suryani Kurnila Vera Mandailina Vera Mandailina Vera Mandailina Vera Mandailina, Vera Vera Mendalina Vina Melia Mardika Wahyu Ningsih Wahyudi Rakhman Wasim Raza Winda Sari Wiyana As'ari Xinxin Li Ying Zhou Yudin Citradin Yuliatun, Yuliatun Yuni Susilowati Yuni Susilowati Yuni Susilowati Yunita Septiana Anwar Zaenab Jamaludin Zubaidah, Risna