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Baswardono, Wiyoga
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Computer Science & IT

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Prediksi Jangka Pendek Harga Bitcoin Menggunakan Model Autoregressive Integrated Moving Average (Arima) Rusdiawan, Mohamad Mihradi; Julianto, Indri Tri; Baswardono, Wiyoga
Jurnal Algoritma Vol 22 No 2 (2025): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.22-2.2161

Abstract

Cryptocurrency trading, particularly Bitcoin, faces significant price fluctuations, necessitating accurate price prediction to support decision-making. This study aims to apply the Autoregressive Integrated Moving Average (ARIMA) model for short-term Bitcoin price forecasting. The choice of ARIMA is based on its ability to capture price trends using historical data. The research adopts the Cross Industry Standard Process for Data Mining (CRISP-DM) methodology, which comprises five main phases: Business Understanding, Data Understanding, Data Preparation, Modeling, and Evaluation. The dataset used consists of historical Bitcoin USD prices from investing.com, encompassing 1,462 records with seven attributes: Date, Price, Open, High, Low, Vol, and Change, covering the period from May 5, 2020, to May 5, 2024. The ARIMA model applied to this dataset is evaluated using the Root Mean Square Error (RMSE) metric to measure prediction error, along with a stationarity test using the Augmented Dickey-Fuller (ADF) test. Evaluation results indicate that the ARIMA (1, 2, 1) model achieves an RMSE of 0.0712, demonstrating strong predictive accuracy. The ADF test reveals that the original data is non-stationary, requiring two rounds of differencing (d=2) to achieve stationarity. Furthermore, analysis of the Autocorrelation Function (ACF) and Partial Autocorrelation Function (PACF) confirms that the ARIMA (1, 2, 1) parameters are suitable for capturing the data patterns. Although the model performs well, the findings also suggest the need for more advanced predictive models, such as machine learning or deep learning techniques, to better handle higher market volatility.
Rancang Bangun Virtual Tour Dalam Mempromosikan Pariwisatawan Lokal Pantai Santolo Menggunakan Metode MDLC Baswardono, Wiyoga; Akbar , Fikri Faisal
Jurnal Algoritma Vol 22 No 2 (2025): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.22-2.2527

Abstract

Santolo Beach in Garut, West Java, is a tourist destination with great natural potential, but it is not widely known due to limited promotional strategies that are still conventional in nature. This study aims to develop a website-based digital promotional media by applying 360-degree virtual tour technology using the Multimedia Development Life Cycle (MDLC) method. The MDLC method consists of six stages, namely: Concept, Design, Material Collecting, Assembly, Testing, and Distribution. In this development, 17 360° panoramic images, 32 tourist spot images, and other multimedia elements were collected to create an interactive and informative website display. The final result shows that the virtual tour website is capable of providing an exploration experience and making it easier for users to get to know tourist destinations digitally. This media is also an effective and modern solution in supporting the promotion of Santolo Beach tourism, with the hope of significantly increasing its attractiveness and the number of tourist visits.
Rancang Bangun Virtual Tour Sebagai Media Pengenalan Sekolah Berbasis Web Baswardono, Wiyoga; Fakry, Hafidzh
Jurnal Algoritma Vol 22 No 2 (2025): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.22-2.2554

Abstract

SMP 1 Sukawening, located in Sukawening, West Java, is a junior high school (SMP) committed to providing quality education and equipping students with practical skills. However, the school still uses banners as a method of introduction, which are less effective in displaying attractive visuals. Therefore, this study proposes a web-based virtual tour to introduce the school environment interactively. This technology provides an innovative way for prospective students to explore the school environment thoroughly without the need for a physical visit. The purpose of this research is to implement a web-based Virtual Tour. To implement the Web-based School Introduction Virtual Tour, the Multimedia Development Life Cycle (MDLC) method with six stages is used, namely: concept, design, material collection, creation, testing, and distribution. It is hoped that this research will bring innovation in school introductions that are more interesting, effective, and easily accessible, so that prospective students and parents can obtain more comprehensive information about the school without having to visit physically.
Co-Authors Ade Sutedi, Ade Ahdan, Alfin Muhamad Aisyah, Risa Akbar , Fikri Faisal Almunawar, Moh. Rifki Arifin, Dudy Mohammad Asep Deddy Supriatna Asgara, Zidan Fakry, Hafidzh Hidayattuloh, Yusuf Indri Tri Julianto Latifah, Ayu Nuraeni, Fitiri Nurfadillah , Rifa Sri Rahadian, Reza Rusdiawan, Mohamad Mihradi Suhendar, Heri Wawan Setiawan Yoga Handoko Agustin