Sarah Tambunan

Personal Information

🧑‍🔬 Position : Secretary of Data Science and Information System Research Group
🏢 Office : GD 522, Institut Teknologi Del
📧 Email : sarah.tambunan@del.ac.id
🔗 Scopus ID : 59505906800
🔗 ORCID : 0009-0004-8332-5640
🔎  Research Interest : 1. Cyber Security – Information Security
2. Software Engineering

Education Background

  • [2023] Computer Science Study Program, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Special Region of Yogyakarta, Indonesia
  • [2019] Information System Study Program, Faculty of Informatics and Electrical Engineering, Institut Teknologi Del, Toba Regency, Indonesia

Teaching

  • Computer Architecture and Organization
  • System Security
  • Software Security
  • Operating System (+P)
  • Algorithms and Data Structures
  • Enterprise Resource Planning
  • Information Technology Audit
  • Information System Project Management
  • System Analysis and Design

Professional Skills

Programming Languages : Python, C, PHP, JavaScript
Database : SQL Server, PostgreSQL, MySQL

Research Activities and Grants

  • [2025] Lead Researcher on Penelitian Dosen Pemula Internal IT Del – GenAI Utilization for Regulatory and Guideline Information Institut Teknologi Del through Retrieval-Augmented Generation (RAG).
  • [2025] Research Member on Penelitian Dosen Pemula Internal IT Del – Generative AI for Personalized Learning through Retrieval Augmented Generation and Persona.
  • [2024] Research Member on Penelitian Dosen Pemula Internal IT Del – Enhancing Hate Speech Detection: Leveraging Emoji Preprocessing with Bi-LSTM Model.
  • [2024] Research Member on Penelitian Dosen Pemula Internal IT Del – Leveraging Transformer-Based Language Models and Text Augmentation in Ascepct-Based Sentiment Analysis of Tourism Attraction Review.
  • [2024] Research Member on Penelitian Dosen Pemula Internal IT Del – Generative AI in the Software Industry – Adoption and Challenges.

Publications

International
  • Susi Eva Maria Purba, Sarah Rosdiana Tambunan, Chandro Pardede, “Optimizing Walking Routes for Step Goals using Knapsack Algorithm”, 2nd International Conference on Technology Innovation and Its Applications, ICTIIA 2024.
National
  • Sarah Rosdiana Tambunan, Junita Amalia, Kristina Margaret Sitorus, Yehezchiel Abed Rafles Sibuea, Lucas Ronaldi Hutabarat, 2024, “Enhancing Credit Risk Classification Using LightGBM with Deep Feature Synthesis”, Journal of Information Systems and Informatics, Vol 6 No 4.
  • Sarah Rosdiana Tambunan, Nur Rokhman, 2023, “C Source code Obfuscation using Hash Function and Encryption Algorithm”, IJCCS (Indonesian Journal of Computing and Cybernetics Systems), Vol 17, No 3.

Work Experiences

2023 – present : Lecturer – Institut Teknologi Del
2019 – 2021 : Academic Assistant – Institut Teknologi Del
2018 : Internship – Sanger Production

Professional Certification

2019 – 2022 : Inixindo Certified Association in Database – PT. Inixindo Persada Rekayasa Komputer