Computer Science · Artificial Intelligence - Knowledge & Reasoning
Consider a first-order logic knowledge base. What is the fundamental difference between 'Forward Chaining' and 'Backward Chaining' inference strategies?
- 1Forward chaining is goal-driven, while backward chaining is data-driven.
- 2Forward chaining starts from known facts and applies rules to infer new facts, whereas backward chaining starts from a hypothesis and works backward to find supporting facts.✓
- 3Forward chaining is only applicable to propositional logic, while backward chaining is used for first-order logic.
- 4Forward chaining always finds a proof faster than backward chaining for any given query.
Correct answer
Forward chaining starts from known facts and applies rules to infer new facts, whereas backward chaining starts from a hypothesis and works backward to find supporting facts.
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