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Comparative Analysis of LSTM Neural Network and SVM for USD Exchange Rate Prediction: A Study on Different Training Data Scenarios Rosita, Yesy Diah; Moonlight, Lady Silk
Scientific Journal of Informatics Vol 11, No 1 (2024): February 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v11i1.49975

Purpose: This paper aims to investigate and compare the performance of LSTM Neural Network and Support Vector Machines (SVM) in predicting the USD exchange rate using three different training data scenarios: 45%, 55%, and 75%. The study employs a dataset from the Indonesian Central Bureau of Statistics (BPS) for the period of January 1 to June 30, 2021, encompassing attributes USD Selling Rate.Methods: The methods involve implementing LSTM and SVM algorithms within the Python programming language using Google Colaboratory. Three distinct training data scenarios are explored to evaluate the models' robustness. Performance metrics, including Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), and R-squared, are employed for evaluation.Result: Results reveal that LSTM demonstrates superior prediction accuracy compared to SVM across all scenarios, even though it incurs a longer training time. Notably, in the 75% training data scenario, LSTM achieves an MAE of 49.52, RMSE of 63.08, and R-squared of 0.37906, outperforming SVM with MAE of 138.33, RMSE of 161.58, and R-squared of 0.34277.Novelty: This study innovatively compares LSTM Neural Network and Support Vector Machines (SVM) for USD exchange rate prediction across different training scenarios (45%, 55%, and 75%). Unlike previous research focusing on individual models, this study systematically evaluates both methods, highlighting the nuanced balance between prediction accuracy and training time. The findings offer novel insights into LSTM and SVM applicability in currency forecasting, providing valuable guidance for researchers and practitioners in model selection based on specific predictive task requirements.

Rancang Bangun Website Prodi D3 Komunikasi Penerbangan Menggunakan Metode Prototype Moonlight, Lady Silk; Rochmawati, Laila; Fatmawati, Fatmawati; Furyanto, Faoyan Agus; Arifianto, Teguh
INTEGER: Journal of Information Technology Vol 7, No 1 (2022): Maret
Publisher : Fakultas Teknologi Informasi Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.integer.2022.v7i1.2520

Program studi Diploma 3 Komunikasi Penerbangan (Prodi D3 KP) selama ini telah memiliki page pada laman website resmi Politeknik Penerbangan Surabaya (Polekbang Surabaya) yaitu https://poltekbangsby.ac.id/program-studi/komunikasi-penerbangan/. Namun seiring dengan meningkatnya kebutuhan informasi dan data di Program studi Diploma 3 Komunikasi Penerbangan, pada penelitian ini dibangun dan dikembangkan Sistem informasi Program studi Diploma 3 Komunikasi Penerbangan berbasis website. Pada penelitian ini, proses bisnis sistem digambarkan dengan BPMN (Business Process Model and Notation). Sistem ini dibangun menggunakan CMS (Content Manajemen System) yang bersifat open source yaitu wordpress. Setelah sistem ini berjalan, dilakukan evaluasi terhadap kinerja sistem dengan menggunakan kerangka kerja PIECES

Intercultural learning experiences and self-efficacy in English use among aviation vocational students Fatmawati, Fatmawati; Rochmawati, Laila; Sukma, Meita Maharani; Klau, Edmond Brianaldy Tahu; Kusumayati, Lusiana Dwi; Moonlight, Lady Silk
Jurnal Pendidikan Vokasi Vol. 15 No. 2 (2025): June
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v15i2.90645

Globalization increasingly demands graduates who are able to communicate across cultures confidently and appropriately. However, limited evidence explains how culturally diverse students in semi-military vocational settings experience intercultural learning, particularly when language barriers and differing expectations shape their academic and social adjustment. This study explores the motivations, perceived benefits, challenges, and intercultural learning experiences of foreign students enrolled at Surabaya Aviation Polytechnic. Using a qualitative case study approach, data were collected from 18 Timor-Leste students through semi-structured interviews and open-ended questionnaires, and analyzed using deductive–inductive thematic analysis with data triangulation. The conceptual frameworks of intercultural communicative competence (ICC), cultural intelligence (CQ), and self-efficacy in English use informed the construction of interview guides and the interpretation of findings. Results reveal six key motivations for studying abroad, mainly career advancement, institutional reputation, and program practicality. Nevertheless, students experienced a clear gap between expectations and reality. Limited interaction with local peers, regional language accents, and low confidence in using English led to reduced frequency of intercultural encounters, social withdrawal, and stagnation in ICC development. Personal factors such as introversion and language anxiety further constrained participation. The findings suggest that authentic intercultural exposure, confidence-building strategies, and structured cultural preparation are essential to support students’ integration and learning. Practically, institutions should provide mentoring, communication simulations, and media-based cultural orientation to improve students’ readiness, emotional regulation, and self-efficacy. The study contributes to the literature by highlighting how intercultural learning unfolds in a unique vocational aviation context and by proposing practical approaches to enhance students’ intercultural development.

Web-Based Information System for the Language Unit at Politeknik Penerbangan Surabaya Moonlight, Lady Silk; Silvia, Maulana Anifa; Budiarto, Anton; Furyanto, Faoyan Agus; Musadek, Ahmad; Kusumayati, Lusiana Dewi
Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Vol 18, No 4a: December 2025
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pamator.v18i4a.32852

This study aims to develop a web-based information system for the Language Unit of Politeknik Penerbangan Surabaya to replace the existing manual management processes. The system is designed to improve the efficiency of information delivery, registration, and payment for services such as language training, English proficiency tests, and document translation. The development process adopts the Agile methodology, which enables iterative development and rapid adaptation to user needs. The system implementation utilizes WordPress as the content management system and MySQL as the primary database to ensure data reliability and ease of management. The results show that the developed website provides faster, more flexible, and secure access for users. Furthermore, the system supports a mobile-friendly design, allowing users to access information anytime and anywhere. Thus, the system successfully supports the modernization of language services through efficient and sustainable digitalization.

Optimization of Website Based Facility Service System at Politeknik Penerbangan Surabaya Moonlight, Lady Silk; Arifianto, Teguh; Bahrawi, Ahmad; Sari, Dewi Ratna; Hariyanto, Didi; Sari, Putri Dya Citra Nur Kumala
International Journal of Artificial Intelligence Research Vol 9, No 1.1 (2025)
Publisher : Universitas Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29099/ijair.v9i1.1.1638

Technological developments, particularly in the Industry 4.0 era, accompanied by increasing technological literacy among the public, have influenced business operations, making them easier to develop and more widely known. Digital transformation innovations in facility services at the Politeknik Penerbangan Surabaya were carried out to improve administrative efficiency, information, and service speed. This study aims to develop a web-based facility service information system with the Laravel framework and online payments using the Midtrans payment gateway that can be accessed by internal and external users of the institution more easily and transparently. The development of this system uses the Waterfall Software Development Life Cycle (SDLC) method. The results of the study show that this system is able to manage facility data, transactions, availability, and transaction history in an integrated and real-time manner. The integration of Midtrans into the system not only makes transactions fast and secure, but also provides convenience and security protection for customers. The implementation of this system has been proven to increase efficiency, speed up the service process, minimize recording errors, while expanding service access for users from outside the institution easily and effectively. In addition, with the institution's digital development system, strategic decision-making has also become easier

The Effectiveness of Problem-Based Learning and Project-Based Learning on Cadet Problem-Solving Skills in Vocational Aviation Education Parjan, Parjan; Moonlight, Lady Silk; Silvia, Maulana Anifa; Furyanto, Faoyan Agus; Musadek, Ahmad; Budiarto, Anton
Jurnal Pendidikan (Teori dan Praktik) Vol 11 No 1 (2026): Vol. 11 No. 1 (2026): Volume 11, Nomor 1, Januari 2026
Publisher : Fakultas Ilmu Pendidikan Universitas Negeri Surabaya

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

Problem-solving skills are essential competencies for vocational graduates in aviation education, where professional tasks are characterized by high risk, time pressure, and technological complexity. This study examined the effectiveness of Problem-Based Learning (PBL), Project-Based Learning (PJBL), and a combined PBL–PJBL approach in improving the problem-solving skills of cadets at the Surabaya Aviation Polytechnic. A quantitative method with a quasi-experimental design was employed. A total of 100 first-year cadets were selected through purposive sampling and assigned to four groups: PBL, PJBL, combined PBL–PJBL, and a control group. Data were collected using a validated and reliable questionnaire administered as pretest and posttest, and analyzed using one-way ANOVA, Tukey’s HSD post hoc test, and N-Gain analysis. The results indicate that all experimental learning models significantly improved cadets’ problem-solving skills compared to the control group. The combined PBL–PJBL model demonstrated the strongest overall effect, yielding the highest statistical improvement and a very large effect size. When examined as single-method implementations, PBL produced higher learning gains than PJBL, indicating greater practical efficiency in developing problem-solving skills. These findings suggest that while PBL alone is an effective and efficient instructional approach, integrating PBL and PJBL provides a more comprehensive learning experience that maximizes problem-solving development in aviation vocational education. The study highlights the importance of aligning instructional strategies with the cognitive and operational demands of aviation training contexts

The Effectiveness of Problem-Based Learning and Project-Based Learning on Cadet Problem-Solving Skills in Vocational Aviation Education Parjan, Parjan; Moonlight, Lady Silk; Silvia, Maulana Anifa; Furyanto, Faoyan Agus; Musadek, Ahmad; Budiarto, Anton
Jurnal Pendidikan (Teori dan Praktik) Vol 11 No 1 (2026): Vol. 11 No. 1 (2026): Volume 11, Nomor 1, Januari 2026
Publisher : Fakultas Ilmu Pendidikan Universitas Negeri Surabaya

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

Problem-solving skills are essential competencies for vocational graduates in aviation education, where professional tasks are characterized by high risk, time pressure, and technological complexity. This study examined the effectiveness of Problem-Based Learning (PBL), Project-Based Learning (PJBL), and a combined PBL–PJBL approach in improving the problem-solving skills of cadets at the Surabaya Aviation Polytechnic. A quantitative method with a quasi-experimental design was employed. A total of 100 first-year cadets were selected through purposive sampling and assigned to four groups: PBL, PJBL, combined PBL–PJBL, and a control group. Data were collected using a validated and reliable questionnaire administered as pretest and posttest, and analyzed using one-way ANOVA, Tukey’s HSD post hoc test, and N-Gain analysis. The results indicate that all experimental learning models significantly improved cadets’ problem-solving skills compared to the control group. The combined PBL–PJBL model demonstrated the strongest overall effect, yielding the highest statistical improvement and a very large effect size. When examined as single-method implementations, PBL produced higher learning gains than PJBL, indicating greater practical efficiency in developing problem-solving skills. These findings suggest that while PBL alone is an effective and efficient instructional approach, integrating PBL and PJBL provides a more comprehensive learning experience that maximizes problem-solving development in aviation vocational education. The study highlights the importance of aligning instructional strategies with the cognitive and operational demands of aviation training contexts

Effect of Fare, Service Quality, and Baggage Handling on Passenger Satisfaction Bahrawi, Ahmad; Surtiningtyas, Sri Rahayu; Rinaldi, Ridho; Sukma, Meita Maharani; Kusumayati, Lusiana Dewi; Moonlight, Lady Silk
Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Vol 18, No 4a: December 2025
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pamator.v18i4a.33488

Ensuring client satisfaction is a crucial aspect of the aviation industry that determines the success of airline operations. To retain and attract customers, airlines must provide services that encourage loyalty and appeal to potential passengers, such as those of Garuda Indonesia Airlines. Several factors influence customer satisfaction, including ticket fares, service quality, and baggage handling. This study aims to examine the extent to which these three variables affect the satisfaction levels of Garuda Indonesia passengers departing from Juanda International Airport, Surabaya. A quantitative strategy was used, and information was gathered using a Likert-scale questionnaire. After removing outliers, 96 valid responses were analyzed. The three variables have a considerable impact on passenger satisfaction, as demonstrated by the regression analysis’s 90.8% Adjusted R Square result. In comparison, the remaining 9.2% is explained by additional elements not covered in this research. The results are expected to serve as recommendations for evaluating and improving Garuda Indonesia’s service performance at Juanda International Airport. Overall, this research contributes to enhancing airline strategies aimed at maximizing service effectiveness, strengthening competitiveness in the aviation sector, and expanding academic understanding of the connection between flight fares, service quality, baggage handling, and customer satisfaction.

Analysis Of Conceptual Understanding Of Aviation Security (AVSEC) Topic Course With Science, Technology, Engineering, And Mathematics (STEM) Approach: Study Of The Perimeter Intrusion Detection System (PIDS) Using Arduino And Pir Sensor Musadek, Ahmad; Harianto, Bambang Bagus; Silvia, Maulana Anifa; Furyanto, Faoyan Agus; Hariyanto, Didi; Moonlight, Lady Silk
Jurnal Ilmu Pendidikan Vol 31, No 2 (2025): December
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um048v31i2p%p

This study aims to analyze students' conceptual understanding of the "Aviation Security" (AVSEC) course, focusing on the topic of Perimeter Intruder Detection System (PIDS) using the Science, Technology, Engineering, and Mathematics (STEM) approach. This study uses a quasi-experimental design with pre-test and post-test approaches to evaluate the effectiveness of STEM approaches in improving students' conceptual understanding. A total of 25 cadets from the MTU study program, Surabaya Aviation Polytechnic, became the subject of the research. The instruments used include conceptual comprehension tests, observation sheets, questionnaires, and in-depth interviews. The results of data analysis using the Paired Sample T-Test showed that there was a significant increase in student understanding after the application of STEM methods. The average value of the difference between the pre-test and the post-test was -17.750 with a standard deviation of 4.665, and a significance level of 0.000, indicating a significant increase in understanding. The 95% confidence interval for the mean difference is between -19,720 to -15,780. The PIDS system was developed using the Research and Development (R&D) method, while the development of hardware and software followed the Waterfall approach. The results of this research make an important contribution to the development of STEM-based learning methods in the field of aviation safety, especially on the topic of PIDS.

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