The Synthesis and Diagnosis Rules for Conceptual Data Warehouse Design Based on First-Order Logic. - Opim Salim Sitompul; Shahrul Azman Mohd. Noah (CITA, 2005)

Integrating User's Requirements in Automated Conceptual Data Warehouse Design. - Opim Salim Sitompul; Shahrul Azman Mohd. Noah (iiWAS, 2005)

Enhancing Extraction Method for Aggregating Strength Relation Between Social Actors. - Mahyuddin K. M. Nasution; Opim Salim Sitompul (CSOC (1), 2017)

A Framework of Utilizing Big Data of Social Media to Find Out the Habits of Users Using Keyword. - Arif Ridho Lubis; Mahyuddin K. M. Nasution; Opim Salim Sitompul; Elviawaty Muisa Zamzami (ICCCM, 2020)

"Kian Santang" game as historical educational media using digital storytelling concept. - Mahardika Abdi Prawira Tanjung; Opim Salim Sitompul (Educ. Inf. Technol., 2020)

Morpheme Embedding for Bahasa Indonesia Using Modified Byte Pair Encoding. - Amalia Amalia; Opim Salim Sitompul; Teddy Mantoro; Erna Budhiarti Nababan (IEEE Access, 2021)

Dynamic Terrain Data Exchange in a Collaborative Terrain Editor. - Jos Timanta Tarigan; Opim Salim Sitompul; Muhammad Zarlis; Erna Budhiarti Nababan (Informatica (Slovenia), 2022)

Customer Churn Prediction using Confident Learning and XGBoost. - Indra Syah Putra; Opim Salim Sitompul; Erna Budhiarti Nababan (IC3INA, 2024)