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INF1505 Chapter 13: Intelligent Information Systems
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An expert system should be used if some conditions exists, name them.
An expert system should be used if some conditions exists, name them.
An expert system should be used if one or more of the following conditions exists:
• A lot of human expertise is needed but a single expert cannot tackle the problem on his or her own. (An expert system can integrate the experience and knowledge of several experts more easily.)
• The knowledge that is needed can be represented as rules or heuristics; a well-defined algorithm is not available.
• The decision or task has already been handled successfully by human experts, allowing the expert system to mimic human expertise.
• The decision or task requires consistency and standardization. (Because computers are more accurate at following standard procedures, an expert system can be preferable to humans in this situation.)
• The subject domain is limited. (Expert systems work better if the problem under investigation is narrow.)
• The decision or task involves many rules (typically between 100 and 10,000) and complex logic.
• There is a scarcity of experts in the organization, or key experts are retiring. (An expert system can be used to capture the knowledge and expertise of a long-time employee who is retiring.)
List the advantages that an expert system can have over humans.
List the advantages that an expert system can have over humans.
• It never becomes distracted, forgetful, or tired. Therefore, it is particularly suitable for monotonous tasks that human workers might object to.
• It duplicates and preserves the expertise of scarce experts and can incorporate the expertise of many experts.
• It preserves the expertise of employees who are retiring or leaving an organization.
• It creates consistency in decision making and improves the decision-making skills of nonexperts.
What does Shopping and information agents do, and name some examples.
What does Shopping and information agents do, and name some examples.
Shopping and information agents help users navigate through the vast resources available on the Web and provide better results in finding information.
These agents can navigate the Web much faster than humans and gather more consistent, detailed information.
They can serve as search engines, site reminders, or personal surfing assistants.
Pricewatch (www.pricewatch.com) is a commercial shopping agent that finds the lowest price for many items and displays all competitive prices.
Another example is BestBookBuys (www.bestbookbuys.com), which asks you to identify a book by its title, author, or ISBN, then finds all the online booksellers that carry this book and organizes them into a list from least expensive to most expensive.
Another comparison-shopping agent is available at www.mysimon.com.
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