SISFO

Analisis Sentimen dan Korelasi Berita Saham pada Platform Trading Gotrade terhadap Perubahan Harga Saham

2025-05-30T14:51:24+00:00

The interest in investing in stocks has increased in recent years. Gotrade app has appeared to address this increasing interest. Gotrade Daily also appeared along with Gotrade, a newsletter that provides recent information about stocks that are traded in Gotrade application. Effectiveness of the Gotrade Daily newsletter as the main reference for investors is the focus on this research. The effectiveness of Gotrade Daily newsletter can be calculated by measuring the correlation between its news sentiment and stock price changes. News sentiment is calculated using rule-based approach by combining two libraries, Loughran-McDonald dictionary and VADER (Valence Aware Dictionary and sEntiment Reasoner) dictionary. The obtained sentiment scores could be correlated with its stock price changes, using Pearson correlation and Spearman correlation. From the results of several experiments that have been conducted, it was concluded that there is almost no connection between stock news and the closing value of the following day. So that the news published in the Gotrade Daily newsletter cannot be relied on as the only consideration for making decisions to invest in certain stocks.

Proyek Pengembangan Notares Website Manajemen Keuangan Cerdas dengan Metode Scrum Agile

2025-05-30T14:51:24+00:00

Studi ini bertujuan mengembangkan Notares, sebuah website manajemen keuangan cerdas yang dirancang untuk membantu mahasiswa dalam mengelola pengeluaran dan pendapatan secara efektif. Dalam pengembangannya, metode Agile dengan kerangka kerja Scrum diterapkan untuk memungkinkan iterasi yang cepat, kolaborasi tim yang optimal, serta kemampuan adaptasi terhadap kebutuhan pengguna yang dinamis. Proses pengembangan mencakup tahapan pengumpulan user stories, penyusunan product backlog, perencanaan dan pelaksanaan sprint, hingga evaluasi dan pengujian fitur. Hasilnya, website Notares berhasil dikembangkan dengan fitur inti yang mengonsumsi total waktu pengerjaan 79 jam dalam tiga periode sprint (dari lima sprint yang direncanakan). Website Notares menyediakan fitur utama seperti pencatatan keuangan, visualisasi laporan, rekomendasi investasi, dan notifikasi cerdas. Evaluasi menunjukkan bahwa pendekatan Scrum mampu mendukung pencapaian target proyek secara efisien serta memberikan fleksibilitas dalam pengembangan fitur. Keterbaruan dari penelitian ini terletak pada penerapan metode Agile dengan kerangka kerja Scrum dalam konteks pengembangan website manajemen keuangan untuk mahasiswa, yang masih belum dijadikan pendekatan utama dalam studi sejenis.

A Bibliometric Analysis of Digital Business Models: Comparative Insights Before and After COVID-19

2025-05-30T14:51:25+00:00

Discussions related to digital technology and business models have developed significantly in the last decade, especially since the Covid-19 pandemic as an acceleration momentum in digital business model research. Based on this phenomenon, this study aims to provide a comprehensive overview of the scientific literature landscape related to digital business models using a quantitative approach through bibliometric analysis. Referring to Scopus indexed publications in the last decade, this study will show changes in trends that occurred in the pre- and post-pandemic phases, showing the evolution of research trends, the most influential documents with the highest citation indicators, co-citation networks, co-occurrence patterns, and thematic shifts. Based on the findings of the trend shifts revealed through this approach, this study recommends a future agenda for the context of digitalization of business models to focus on three strategic things, namely sustainability and circular economy, digital transformation strategy, and technology-driven innovation.

Mapping a Decade of Digital Twin Research: Trends, Thematic Evolution, and China’s Strategic Lead

2025-05-30T14:51:25+00:00

Digital Twin (DT) has emerged as a rapidly growing research area in computer science and related fields, with applications spanning industries such as manufacturing, healthcare, and urban planning. To systematically analyze its evolution, this study addresses five key research questions: RQ1 (annual publication trends), RQ2 (active researchers and countries), RQ3 (leading journals), RQ4 (dominant research themes), and RQ5 (citation-based influence). Using bibliometric methods, we analyzed Scopus-indexed articles through a structured workflow: keyword definition, data preprocessing, and thematic clustering via K-means. The results reveal a sharp rise in DT publications post-2000, with China surpassing the United States in contributions after 2020, driven by national investments in digital infrastructure and smart manufacturing. Four thematic clusters were identified: cybersecurity in DT systems, Industry 4.0 applications, cyber-physical energy networks, and 3D modeling for virtual design. The study highlights IEEE Access as the most prolific journal and underscores the interdisciplinary nature of DT through high-impact papers aligned with cluster themes. While this work provides a comprehensive overview of DT’s research landscape, future studies should explore emerging keywords (e.g., ethical AI integration) and expand database coverage to refine thematic boundaries. These insights not only map the current state of DT research but also guide scholars and policymakers in prioritizing innovation areas for sustainable technological advancement.

Pengaruh Fitur Social Media Marketing terhadap Keputusan Pembelian Brand Fashion

2025-05-30T14:51:25+00:00

Media sosial berkembang dari teks ke konten visual dan dimanfaatkan dalam pemasaran, termasuk oleh fashion brand. Social media marketing memungkinkan hubungan interaktif dengan konsumen dan memengaruhi keputusan pembelian, meski efektivitasnya masih diperdebatkan. Penelitian ini menganalisis pengaruh fitur-fitur social media marketing terhadap keputusan pembelian, dengan Brand Trust sebagai variabel mediasi. Penelitian ini menggunakan metode survei kuantitatif dengan kuesioner berbasis enam variabel utama: Interactivity, Informativeness, Entertainment, Perceived Relevance, Brand Trust, dan Purchase Decision. Data dikumpulkan dari 200 responden yang dipilih secara purposive sampling, dengan syarat aktif di media sosial dan pernah membeli produk Erigo. Analisis data mencakup pre-processing, uji asumsi klasik, Confirmatory Factor Analysis, uji Goodness of Fit, dan pengujian hipotesis menggunakan SEM untuk melihat hubungan antar variabel. Hasil penelitian menunjukkan bahwa keputusan pembelian pada Fashion Brand dipengaruhi secara langsung oleh interaktivitas dan kepercayaan terhadap merek, serta secara tidak langsung oleh relevansi, hiburan, dan keinformatifan melalui mediasi Brand Trust. Temuan ini menegaskan pentingnya strategi konten yang relevan, informatif, dan menghibur untuk membangun kepercayaan merek. Kontribusi penelitian ini terletak pada pemahaman hubungan mediasi brand trust dalam konteks media sosial dan perilaku konsumen fashion, serta memberikan panduan praktis bagi brand untuk mengoptimalkan strategi digital marketing guna meningkatkan keputusan pembelian konsumen melalui pengalaman sosial yang bermakna.

Penyusunan Disaster Recovery Planning (DRP) Pada Data Center Unusa Menggunakan NIST 800-34

2025-05-30T14:51:25+00:00

Data center di Universitas Nahdlatul Ulama Surabaya (Unusa) memiliki peran vital dalam operasional kampus, tetapi pengelolaannya sangat bergantung pada staf dari Direktorat Sistem Informasi (Dir.SI), yang meningkatkan risiko jika terjadi bencana atau ancaman. Penelitian ini menyusun Disaster Recovery Plan (DRP) dengan pendekatan NIST 800-34. Terdapat tiga tahapan utama dalam penelitian ini: (1) Kajian kondisi eksisting dan manajemen data center, (2) penilaian risiko aset Teknologi Informasi (TI), dan (3) penyusunan DRP berdasarkan NIST 800-34. Penelitian ini menghasilkan dokumen DRP yang mencakup struktur organisasi DRP, strategi pemulihan efektif berdasarkan Recovery Time Objectives (RTO) dan Recovery Point Objectives (RPO), serta prosedur keberlanjutan operasional data center. Integrasi kedua standar ini bertujuan untuk menyeimbangkan aspek teknis dan manajemen risiko dalam meningkatkan ketahanan layanan data center Unusa.

Application of Gamification to Enterprise Systems: A Systematic Literature Review

2025-05-30T14:51:26+00:00

Implementing an enterprise system is a challenge for organizations to adapt to new routines. The comprehension of enterprise systems extends beyond the implementation phase, encompassing the learning context through the incorporation of gamification. Gamification has characteristics that help in recognizing appropriate elements to support effectiveness in its implementation. To understand further the application of gamification to enterprise systems, this research aims to describe the state of the art through a systematic literature review to determine the characteristics and effectiveness of the application of gamification to enterprise systems. This research selected 14 publications in 2018-2022 based on predefined criteria and quality assessments. The use of the most gamification elements in points, leaderboards, levels, and rewards represents gamification characteristics. ERPSim is a media that is widely used for ERP learning. The pre-test and post-test comparison method stands out as the most prevalent approach in gamification experiments. This comprehensive literature review serves as a valuable resource to determine the appropriate application of gamification according to its objectives and field of application.