Submitted: 06 October 2026 You are already at the latest version With 60 years of research, knowledge-based system has travelled a long journey from early small-scale rule-based programs to modern super-large-scale knowledge graphs. Several multithreading technical stages can be broadly categorized: early history of rule-based system, knowledge engineering, semantic network, semantic web, ontology engineering, knowledge graph, and recent advances driven by machine learning.
