+An **Expert System** is a [computer program](/wiki/computer_program) designed to mimic the decision-making ability of a human expert. It uses a [knowledge base](/wiki/knowledge_base) of facts and rules, applying an inference engine to solve complex problems within a specific domain.
+## See also
+- [Artificial Intelligence](/wiki/artificial_intelligence)
+- [Machine Learning](/wiki/machine_learning)
+- [Rule-based System](/wiki/rule_based_system)
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