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Unit 3 B

Thoroughly read chapter 3 in The Essence of Artificial Intelligence. Answer Chapter Exercises 2 and 3 on page 66ff.

2. Develop a simple set of rules for diagnosing respiratory …

[ignore the last part dealing with an expert system shell]

3. What do you think are the main problems and limitations …

[20 points]

1. Develop a simple set of rules for diagnosing respiratory symptom diseases given patient symptoms, using the following knowledge of typical symptoms. Describe how a simple backward chaining interpreter could be used to go through the possible diagnoses, asking the user questions about their symptoms. If you have an expert system shell available, try implementing a simple diagnosis system based on the above.

o Influenza: Symptoms include a persistent dry cough and a feeling of general malaise.

o Hayfever: Symptoms include a runny nose and sneezing. The patient will show a positive reaction to allergens, such as dust or pollen.

o Laryngitis: Symptoms include a fever, a dry cough, and a feeling of general malaise. A “laryngoscopy” will reveal that the person has an inflamed larynx.

o Asthma: Symptoms include breathlessness and wheezing. If it is triggered by an allergen, such as dust or pollen, it is likely to be “extrinsic asthma”. “Intrinsic asthma” tends to be triggered by exercise, smoke or a respiratory infection.

2. What do you think are the main problems and limitations of the rule-set developed for the question above? What additional knowledge might be useful to deal with more complex or subtle diagnoses?

Unit 4 B

Thoroughly read chapter 6 inThe Essence of Artificial Intelligence. Apply the difference operator mask on page 129 to the image on page 128. Notes: use a threshold of 2; use the absolute value of the difference operation; the resulting matrix will be 7×7 rather than 8×8 (as the original is).

List the resulting matrix and show your work in computing it. This is a difficult assignment; don’t panic, but work carefully and deliberately.

Attachments:

week10.docx