Discuss how expert systems function and the challenges faced by developers in building it
What will be an ideal response?
An expert system mimics the reasoning of a human expert, drawing from a base of knowledge about a particular subject area to come to a decision or recommendation. To build an expert system, developers work with experienced and specialized professionals as they provide answers to questions and explain their reasoning processes. The output is fine-tuned continually as the experts contribute more knowledge to the base, refine the rules, and add additional questions. The process is challenging, often because experts don't quite know exactly how they reach their conclusions. Formally identifying the actual steps is harder than it appears, but the results can be quite dramatic and enormously useful for decision support.
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Formulate an appropriate objective function for this scenario
After months of broken promises, partial payments, and general stupidity, the landlord had no choice but to evict the long term tenants that had become little more than squatters in his first rental property. As he surveyed the damage and pondered a mix of repairs an upgrades, he scoured the latest statistics on what different upgrades might be worth in terms of increased rent. Beautifully refinished wood floors could increase the monthly rent about $100 and an upgrade to the kitchen would fetch $80 per month. The garage door needed replacement, but even though it would receive daily use, it was almost an order qualifier, and wouldn't net more than $20 per month. The house had always suffered from lack of a back door — you had to access the backyard through the garage, so taking out a window and replacing it with a safety door would cost $250 and add only $15 to the monthly rent. The garage door would cost $350, the kitchen update would cost $1000 if he went with granite, and the floor refinish job would cost $400 to rent the buffer and buy the chemicals. It wouldn't be easy doing these upgrades; the garage door would take a half week, the back door one week, the floors two weeks and the tile three weeks. There was another way around these jobs though; instead of doing them himself, the landlord could always hire a professional in each field that could finish the job in half the time but would charge a pretty penny for that speed. Refinishing floors would cost $2700, upgrading the kitchen would cost $2500, replacing the back window with a door would cost $600, and installing a garage door opener would cost $350.
Due to time pressure and heavy workload, Dan has developed high blood pressure and has started to show forgetfulness at work and home. These are examples of ________ strains.
A. internal and external B. physiological and psychological C. psychological and cognitive D. physiological and behavioral E. psychological and behavioral
Blauvelt Electronics Corporation has developed a new instrument-model GZ-29-that has been designed to outperform a competitor's best-selling instrument. Model GZ-29 has a useful life of 30,000 hours of service and its operating cost is $3.20 per hour.In contrast, the competitor's product has a useful life of 10,000 hours of service and has operating costs that average $5.60 per hour. The competitor's instrument sells for $149,000. Blauvelt has not yet established a selling price for model GZ-29.From a value-based pricing standpoint, what is the differentiation value offered by GZ-29 relative to the competitor's offering for each 30,000 hours of service?
A. $370,000 B. $205,000 C. $72,000 D. $245,000
Performance is simply a hardware issue
Indicate whether the statement is true or false