Pathology Question:

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What is the Arden syntax?

Pathology Interview Question

Answer:

The Arden syntax is a standard language and format for representing the medical knowledge and algorithms required for making medical decisions. It is used in medical decision support systems.

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How are neural networks different than Bayesian belief networks along the following dimensions:
(1) inspect ability of knowledge,
(2) need for probabilities acquired from "domain" experts,
(3) need for data to train the system, and
(4) ability of the system to make classifications based on input data. (Note: You may find it helpful to make a 2 × 4 table and include a short phrase or two in each cell.)

You are working with an intensive care unit (ICU) attending physician on a project to see if you can predict readmission for patients with pancreatitis. You have access to a large database of ICU data (such as cardiac catheter values, vital signs, and respiratory parameters), as well as all of the data that can be gleaned from the LIS. There are approximately 800 measurements of various types for each of 4000 patients. You do not really have any specific ideas about what values would be most predictive; in fact, you think it is likely that the predictors are highly complex combinations of factors. Which of the 3 types of artificial intelligence systems would be most appropriate for this problem, and why?