An AI system designed to diagnose diseases using predefined rules is an example of:

Question

BlackTom AI · Accepted Answer

An expert system is a rule-based AI that encodes specialist knowledge as explicit if–then rules, so an AI that diagnoses diseases using predefined rules is an expert system.

1. Relevant knowledge points and concepts
- Expert system: a knowledge base of domain rules + an inference engine that applies those rules to cases to produce conclusions or recommendations. Often used for medical diagnosis, troubleshooting, and decision support.
- Rule-based reasoning: explicit if–then rules (e.g., IF fever AND cough THEN consider influenza).
- Contrast with other AI types: blockchain is a distributed ledger technology; natural language processing (NLP) processes human language; robotics combines sensing, planning, and actuators for physical tasks.

2. Step-by-step reasoning
- The question specifies “designed to diagnose diseases” (a classic domain for expert systems) and “using predefined rules” (key phrase).
- Predefined rules imply the system’s knowledge is encoded explicitly rather than learned from data.
- Therefore, the described system matches the structure and purpose of an expert system: domain-specific rules + inference to reach diagnoses.

3. Intermediate steps / example
- Example rule: IF patient_has(fever) AND patient_has(cough) THEN diagnosis = “possible_influenza”.
- The inference engine checks patient facts against such rules, fires relevant rules, and combines results (possibly with certainty factors) to propose diagnoses.

4. Why the correct answer is correct
- Expert systems are explicitly designed for decision making in specialist domains using hand-crafted rules. The description exactly fits this archetype.

5. Why other options are incorrect
- b. Blockchain application: concerns secure, decentralized transaction records, not rule-based diagnosis.
- c. Natural Language Processor: focuses on understanding/generating human language, not applying medical rules to diagnose.
- d. Robotics system: involves physical robots and control systems, unrelated to rule-based medical diagnosis.

6. Conclusion
The correct choice is a. expert system, which matches the provided answer.

An AI system designed to diagnose diseases using predefined rules is an example of:Single choice

Similar Questions

Which of the following is a DISADVANTAGE of Expert Systems?

Which of the followings are the reason behind the usage of Expert System?i. To preserve knowledge.ii. To completely replace the human experts. iii. To train new employees.iv. To help in emergency situations.

Which of the following is not a true statement about expert systems?

Which of the following is not a limitation of expert systems?

Which of the following represents knowledge as a set of rules?

Expert systems are able to explain why they arrive at a particular solution.

Which of the following best explains why expert systems can outperform human experts in certain tasks?

Expert systems operate primarily through:

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