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Description What are the key differences between supervised and unsupervised tasks? When is each most appropriate to use? Provide specific examples to support your answers.

Description Details: The purpose of this assignment is to perform classification using regression trees, interpret the results, and analyze whether or not the information generated can be used to address a specific business problem. For this assignment, you will use the "Credit Card Defaults" data set from the Topic Materials. Most data categories are self-explanatory. Clarifying notes are as follows. Limit_Balance: Balance limit on the credit card Sex: Gender Education: Highest level of education completed Pay_Status1-3: Pay status in the previous 1 to 3 months, respectively Pay_Amt_Prev1-3: Amount paid in the previous 1 to 3 months, respectively Bill_Amt_Prev1-3: Amount billed in the previous 1 to 3 months, respectively Default: Whether or not the individual defaulted on their credit card payment You are an analyst for a credit card company. Management wants to know if there are any early signs that indicate whether customers will default on their credit cards. If these indicators can be identified, then more scrutiny can be placed on customer transactions in an effort to avoid losses. The rules to detect the potential for default must be simple enough for management to understand and easily implemented as part of the early default flagging system. Your task is to determine the indicators and communicate your findings to management. Question 1: Partition the data to create a training data set (70%) and test data set (30%). Question 2: Build a single classification tree with the training data and Default as the target. Include the "Default Tree Model" output when submitting the answer. Which variable(s) were used in the tree model? How would you use the model to predict whether or not the customer will default? What is the accuracy of the model when using the training and test data? Include the "Misclassification Table" outputs when submitting the answer. Consider the following individual: Limit_Balance=5000, Sex=Male, Education=High School, Marital_Status=Married, Age=30, Pay_Status1=On Time, Pay_Status2=On Time, Pay_Status3=2 Mths Late, Pay_Amt_Prev1=0, Pay_Amt_Prev2=0, Pay_Amt_Prev3=0, Bill_Amt_Prev1=5000, Bill_Amt_Prev2=2500, Bill_Amt_Prev3=100. Based on the classification model, what is the predicted default outcome? Explain your answer. Question 3: Predicting a default correctly is more important than predicting a nondefault outcome. Therefore, the focus of the modeling process should be weighted toward predicting defaults accurately. One way to do this is by increasing the cost of misclassifying a true default. Rerun the model, but increase the cost of misclassifying a true default by a factor of 5 vs. misclassifying a true nondefault as 1. Make sure to set the minimum change in impurity to 0.01. Include the "Default-weighted Tree Model" output when submitting the answer. Which variable(s) were used in the tree model? What is the accuracy of the model when using the training and test data? Include the "Misclassification Table" outputs when submitting the answer. Consider the following individual: Limit_Balance=5000, Sex=Male, Education=High School, Marital_Status=Married, Age=30, Pay_Status1=On Time, Pay_Status2=On Time, Pay_Status3=2 Mths Late, Pay_Amt_Prev1=0, Pay_Amt_Prev2=0, Pay_Amt_Prev3=0, Bill_Amt_Prev1=5000, Bill_Amt_Prev2=2500, Bill_Amt_Prev3=100. Based on the classification model, what is the predicted default outcome? Explain your answer. Question 4: Based on the two classification tree models, which one should be used if the goal is to more accurately predict defaulters? Question 5: Based upon your analysis, what are the indicators of whether or not customers will default on their credit cards? Discuss how management can use this information as part of the early default flagging system. Present your finding in the form of a 250-word executive summary that includes relevant data, charts, and tables to validate the conclusions presented. General Requirements: Submit the answers to Questions 1-4 and the executive summary as Word documents. APA format is not required, but solid academic writing is expected.

Description As a member of my team I have been given the responsibility of Analyzing the Interrelations in Cybersecurity and Analyzing the Impact of policy on Research and Development. I have also included the info for highlighted link and the information from the previous step. I have included as much info to help with completion. I am dealing with the United States/Federal Government Sector for CYB 670 Cybersecurity Capstone. Please read all info carefully, and only use USA sources if possible for references

Description While logistic regression and classification and regression trees (CART) have the same end goal, each model approaches the goal in a different way. Discuss the differences in the two models. Provide a specific example of a situation where employing a CART model would be preferable to a logistic regression model. Explain what makes the CART model superior in your example.

Description Discussion Instructions: In this week’s forum, you are to discuss the role of the Web Analyst, from an actual Job Description that you locate from Careerbuilder.com. Your Instructions: Go to www.Careerbuilder.com In the Keyword Search area place "Web Analytics" or "Web Analytics Professional" as your search term (without the quotes) location is not important Locate the best Web Analytics Job Posting that comes as close as you can determine, to the lessons discussed in the class Review the job description and formulate some opinions to the skill set required for the job, how do the skills listed in the job listing relate to what this course delivered and define these topics in your forum post. Interpret the Job Qualifications, Job Duties, and Educational Requirements, do you believe the description portrays the real aspects of the web analytics professional role. Discuss any salary listings you find, do they appear to be acceptable for the position? Be sure to place the link to the job posting you found. Please use APA formatting and in text cititation Please use APA formatting

Description Define two structured types, one for a two - dimensional Point (floating point coordinates named x and y), the other for a triangle consisting of 3 Points. Have main declare a Triangle and then fill in its vertex Points with random floating point numbers between 0 and 1. Write a second function named centroid with a single input (parameter), a Triangle. The purpose of the centroid function is, surprise, surprise, to compute and return the centroid of a triangle. Have main print out the vertices of the Triangle and then print out the results of the call to centroid.

Description Before beginning this exercise, read the lecture, read Chapter 3 in the text, and review Chapters 1 and 2 in the BABOK® guide located in your online classroom. Using Figure 3.7 on page 45 in the Robertson and Robertson text as a guide, identify the principal stakeholders, and describe what their roles are in the BP. Be sure you have captured the all the primary stakeholders in the BP. Identify the elements of a business problem, then examine the relationship of the BP to the stakeholders you have identified. Your initial post should be a minimum of 200 words.

Description Deliverable Length: 2-3 additional pages of screenshots in the Design Document and zipped Java code project files View objectives for this assignment In this assignment, you will be asked to demonstrate what you have learned in the Discussion Board in terms of vector, wrapper classes, conversion, and collection data structures by writing and implementing Java code within your application that demonstrates each of these concepts. Hint: These may be utilized in areas of storing items in the customer order so that you can allow the customer to order more than one sub or beverage. Refer to the sample prototype in Unit 1 for the various item lists you will use. Feel free to add more choices to each of these lists. Deliverable The following are the Unit 3 Individual Project deliverables: Update the title page for the Design Document with the Project Name (Unit 3 IP) and date. Add the following section header: Phase 3 Revised Application Screenshots. Add screenshots of each distinct screen from your running application.

Description Overview In this homework, you will modify an existing Java Web application that violates several Payment Card Industry guidelines and recommendations. Your task is to locate the issues, based on the readings for this course, identify what is wrong and then fix the code. You will discuss each issue in terms of why the issue may cause a security vulnerability, and how you specifically fixed the issue. Assignment Review, Run and Understand the Sample Java Web application. The current code, uses Java JSP and Servlets to allow a user to login to their account and view credit card data stored in the database. The functionality is relatively simple but several PCI compliance rules have been violated that will prevent the application from being approved by a PCI software auditor. You should first load up the application, populate the database and make sure the application is working in your environment as expected. The application uses the Java Derby relational database. The script used to populate the application is attached in your project folder as well as the Java web project itself. You should be able to open the existing project using Netbeans. However; you may need to load the Derby drivers to the libraries for the project. You can create a new database connection by clicking the services folder and then right mouse-click on Databases select new connection. You can then create a connection for the SDEV425 database. Below is a screen capture that represents my configuration.

Description You are the lead trainer for the software development team at a large telecommunications company. You have been tasked with preparing a training document that explains the principles of polymorphism, inheritance, and encapsulation. Research these principles and provide examples for each principle, showing how they would be used in software development. Be sure to answer the question of how each principle would be employed in the software development process. Java programmers use class hierarchies for the purposes of inheritance. For example, given a Tree class, you could define Conifer and Deciduous subclasses that inherit from the parent Tree class, as follows: In your training document explanations regarding inheritance, depict inheritance by using a computer memory hierarchy in a class hierarchy diagram. Deliverable Prepare a 6-8-page document that provides detailed explanations for polymorphism, inheritance, and encapsulation. Research computer memory hierarchy and the topic to use in your inheritance explanations at this link, making sure to cite it in APA style if you use specific information from the article. Develop a class hierarchy diagram for the memory hierarchy found at the URL. Include in your class hierarchy diagram at least three subclass levels. Each class and subclass must include at least one variable and one method