Multidisciplinary Indonesian Center Journal
Vol. 2 No. 4 (2025): Vol. 2 No. 4 Edisi Oktober 2025

FRAUD DETECTION AND ANALYSIS OF EVENT DATA LOGS USING THE ANOMALY DETECTION APPROACH

Andi Febry Putra Adhitama (Unknown)
M Ainul Yaqin (Unknown)
Suhartono (Unknown)



Article Info

Publish Date
08 Nov 2025

Abstract

This study aims to detect and analyze potential fraud in inventory management using an anomaly detection approach based on event log data at CV Putera Bumi’s warehouse system. The main issue faced by the company is the discrepancy between system data and physical stock conditions due to possible record manipulation and weak internal control. The research employs a combination of process mining using the Alpha Algorithm to reconstruct actual process flows and the Isolation Forest method to detect anomalies without requiring explicit fraud labels. The dataset consists of warehouse event logs recorded over the past 12 months. The findings reveal that the hybrid approach effectively identifies deviations from standard operating procedures and detects potential fraudulent patterns such as after-hours transactions, repeated correction activities, and process skipping. Compared to conventional audit or rule-based methods, this data-driven approach proves more adaptive in recognizing contextual anomalies automatically. The study provides practical contributions for strengthening internal control systems and theoretical insights into the application of unsupervised learning for fraud detection in event log data.

Copyrights © 2025






Journal Info

Abbrev

micjo

Publisher

Subject

Religion Humanities Earth & Planetary Sciences Education Other

Description

Multidisciplinary Indonesian Center Journal (MICJO) adalah Jurnal multidisiplin yang membahas dan mengkaji semua disiplin ilmu, seperti: - Humaniora - Ilmu sosial - IPA - Ilmu hukum - Ilmu pendidikan, - Ilmu agama - Ilmu bahasa - Filsafat, - Teknik - Bisnis - Ekonomi - Manajemen - Teknologi ...