Consider a two-class case with classes fraudulent and nonfraudulent. A data mining routine has been applied to a transaction dataset and has classified 50 records as fraudulent (30 correctly so) and 950 as nonfraudulent (920 correctly so). Calculate the overall error rate: (er) and the overall accuracy (ac). Hints: construct the classification matrix before calculating them. Answer for er is __________ Answer for ar is __________

Q: Consider a class MotorBoat that represents motorboats. A motorboat has attributes for • The capacity…

A: We need to create a MotorBoat class in java. Then we need to initialize given data members in that…

Q: Transform the following UML diagram to a Loan class: Loan |-annualInterestRate: double The annual…

A: In the above question the interest rate is compound or simple is not mentioned so i had considered…

Q: Explain why accessors are better than making secret types public in each of the following three…

A: Accessors are the methods that return the value of private variable and these methods does take any…

Q: We have 10 instances: 5 P and 5 N, given in the following table. Generate a ROC curve and comment on…

A: Receiver Operating Characterestic A receiver operating characteristic curve, or ROC bend, is a…

Q: Which is the correct statements from the below.   a. If a class has dynamic members, we must exit…

A: In an object-oriented programming language, every class has a static and dynamic member. The dynamic…

Q: Consider an online holiday booking system. The users can register to book a holiday package.…

A: Please find the answer below :

Q: Define a Course base class with attributes number and title. Define a print_info() method that…

A: Required:   Define a Course base class with attributes number and title. Define a print_info()…

Q: An airline can reconfigure the seating in an aircraft to respond to demand and to maximise revenue.…

A: An airline can reconfigure the seating in an aircraft to respond to demand and to maximise revenue.…

Q: Consider an online holiday booking system. The users can register and log in to book a holiday…

A: For the solution check step 2

Q: Help with c++. Paste indented code plzz   Select two classes below to implement as an Aggregation…

A: Aggregation It is represented by a ‘HAS-A’ relationship between the objects of two individual…

Q: An airline can reconfigure the seating in an aircraft to respond to demand and to maximise revenue.…

A: Brute-Force algorithm uses a straightforward method to calculate the output of the problem rather…

Q: Consider this scenario, a mehtod in some class needs to access a data field in another class, here…

A: Accessing data fields in another class involves retrieving or modifying the data stored in a data…

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.