Reference no: EM131076781
Homework 4
Q1 Bayesian Networks: Metastatic cancer is a possible cause of brain tumors and is also an explanation for increased total serum calcium. In turn, either of these could explain a patient falling into a coma. Severe headache is also associated with brain tumors. A BN representation of this metastatic cancer example is shown below (Figure 1). All the nodes are Booleans. Given that a patient has severe headache, has a brain tumor, not in coma and does not have symptoms of increased serum calcium, determine the probability that the patient has metastatic cancer.
Q2 Given the following classification rule on weather data, prune it so that it is not an overfit. The goal is to obtain a good rule whose support is at least 3 and accuracy is 50% or more. The current rule has a support of 1 and accuracy of 100%. Show your work.
Outlook=sunny and temp=cool and humidity=normal and windy=false ==> Play = Yes
What to submit? Submit a pdf file with your answers via the Blackboard. Your output should look like this:
Name Course HW#
Q1 Work and results for Q1
Q2 Work and results for Q2
Homework 5
Q1. Given the following data, show ways to discretize age based on (i) Equal-width binning (4 bins) (ii) Equal frequency binning (4 bins) (iii) :
Entropy-based discretization. Salary is the outcome class.
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Age
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Experience
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Education
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Salary
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45
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20
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MS
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High
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|
65
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40
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BS
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Medium
|
|
25
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5
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HS
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Low
|
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35
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10
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BS
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High
|
|
27
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5
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BS
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High
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|
22
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0
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BS
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Low
|
|
'30
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3
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MS
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Medium
|
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66
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40
|
MS
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Medium
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|
50
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25
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BS
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Medium
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37
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15
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BS
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High
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33
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10
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MS
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Medium
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40
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15
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MS
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High
|
|
23
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5
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HS
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Low
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24
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2
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ES
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Medium
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Q2. Transform salary into binary variables using the standard method, the err-correcting code method, and nested dichotomies.
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Future of the juvenile justice system proposal presentation
: Create a 10- to 15-slide Microsoft® PowerPoint® presentation including speaker notes detailing your proposal. Address recommendations for all aspects of the system, including: add pictures to each slide- Community involvement and Law enforcement.
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How may mental illness affect crime in one community
: Are locks, alarms, cameras, anti-theft devices, more police, increased legislation with enhanced penalties, and offender tracking systems (GPS) effective in reducing crime? Why or why not?
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Problem about inappropriate use of prescription medications
: Medication errors, drug safety, and inappropriate use of prescription medications remain important public health concerns. Discuss the impact of these issues on public health. Some things you may consider as you discuss this topic:
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Which of these objects can correctly invoke the method value
: Which of these objects can correctly invoke the method value Of ?
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Determine probability that the patient has metastatic cancer
: Given that a patient has severe headache, has a brain tumor, not in coma and does not have symptoms of increased serum calcium, determine the probability that the patient has metastatic cancer.
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Problem regarding the systems and associated organs
: Briefly describe the normal function of these three systems and associated organs. Choose and briefly describe one chronic disease or disorder for each of the three systems and explain how the diseases/disorders alter the normal function.
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Function takes four inputs and produces three outputs
: The 2-bit binary numbers A1:A0 and B1:B0 are added to produce the 3-bit binary number C:S1:S0. The questions for this homework lead to the construction of this circuit. (Also see the truth table below.)
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Result of staining a bacterial smear
: Eosin is a red stain and methylene blue is blue. What should be the result of staining a bacterial smear with a mixture of eoisin and methylene blue.
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Various types of sexually transmitted diseases
: Discuss the various types of sexually transmitted diseases. Must include at least 6-7 sexual transmitted diseases. Your response should include the most common pathogens, typical signs and symptoms, and treatment.
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