Forward chaining systems are ____ where as backward chaining systems are ____
2015
Forward chaining systems are ____ where as backward chaining systems are ____
- A.
Data driven, Data driven
- B.
Goal driven, Data driven
- C.
Data driven, Goal driven
- D.
Goal driven, Goal driven
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Correct answer: C
Answer: Forward chaining systems are data-driven, while backward chaining systems are goal-driven.
Forward chaining (data-driven): Starts with known facts and repeatedly applies inference rules to derive new facts until no more conclusions can be drawn. Common in production-rule systems and real-time data processing.
Backward chaining (goal-driven): Starts from a goal or query and works backward to find facts or premises that support that goal. Common in logic programming and goal-oriented problem solving.
Quick tip: If the reasoning begins from current data and moves forward, it is data-driven (forward chaining). If it begins from a desired goal and searches backward for supporting facts, it is goal-driven (backward chaining).