We have 10 instances: 5 P and 5 N, given in the following table. Generate a ROC curve and comment on the performance of the classifier. What threshold you will choose? Justify your choice of threshold. Instance Number Class Score 1 P 0.9 0.8 3 P 0.7 4 0.6 0.55 0.5 N 7 0.4 8 N 0.3 9. N 0.2 10 N 0.1 Note: You don't need to write code: vou have to solve this problem using paper and pencil (or

We have 10 instances: 5 P and 5 N, given in the following table. Generate a ROC curve and comment on the performance of the classifier. What threshold you will choose? Justify your choice of threshold. Instance Number Class Score 1 P 0.9 0.8 3 P 0.7 4 0.6 0.55 0.5 N 7 0.4 8 N 0.3 9. N 0.2 10 N 0.1 Note: You don't need to write code: vou have to solve this problem using paper and pencil (or

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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CHALLENGE ACTIVITY 10.2.3: Access a class' attributes. Print the attributes of the InventoryTag object red_sweater.Sample output for the given program with inputs: 314 500 ID: 314 Qty: 500 Use Python, please.
You are provided a list of projects and a list of dependencies (a list of pairings of projects in which the second project is reliant on the first). Before a project can be constructed, all of its dependencies must be built. Find a construction order that will allow the projects to be completed. Return an error if there is no valid build order. EXAMPLEInput:projects: a, b, c, d, e, fdependencies: (a, d), (f, b), (b, d), (f, a), (d, c)Output: f, e, a, b, d, c
It's messy that in the Balrog class's getDamage() function and the Cyberdemon class's getDamage() function we have to write the name of the species before calling the Demon class's getDamage() function. It would be better if the Demon class's getDamage() function could print the name of the species. Taking this a step further, it would be even better if we didn't have to repeat the cout statement "The <whatever> attacks for ?? points!" in every class's getDamage() function. It would be better if that cout statement could occur just once, in the Creature class's getDamage() function. In the Creature class's getDamage() function, insert the following statement:cout << "The " << getSpecies() << " attacks for " << damage << " points!" << endl; Delete (or, if you prefer, comment out) the similar cout statements that appear in the getDamage() function of each of the 5 derived classes. (There will be one such cout statement to delete in each of the 5…
It's messy that in the Balrog class's getDamage() function and the Cyberdemon class's getDamage() function we have to write the name of the species before calling the Demon class's getDamage() function. It would be better if the Demon class's getDamage() function could print the name of the species. Taking this a step further, it would be even better if we didn't have to repeat the cout statement "The <whatever> attacks for ?? points!" in every class's getDamage() function. It would be better if that cout statement could occur just once, in the Creature class's getDamage() function. In the Creature class's getDamage() function, insert the following statement: cout << "The " << getSpecies() << " attacks for " << damage << " points!" << endl; Delete (or, if you prefer, comment out) the similar cout statements that appear in the getDamage() function of each of the 5 derived classes. (There will be one such cout statement to delete in each of…
You are provided a list of projects and a list of dependencies (a list of pairings of projects in which the second project is reliant on the first). Before a project can be constructed, all of its dependencies must be built. Find a construction order that will allow the projects to be completed. Return an error if there is no proper construction order.EXAMPLEInput:projects: a, b, c, d, e, fdependencies: (a, d), (f, b), (b, d), (f, a), (d, c)Output: f, e, a, b, d, c
Computer Science Please finish the template that i provide. #includeclass Nurikabe{public:/*n is the size of the Nurikabe, n >= 5, n <= 20game is the result from some playerhere is one examplen: 5game = { {'W', 'W', 'W', '1', 'W'},{'W', '.', 'W', 'W', 'W'},{'W', '2', 'W', '.', '3'},{'3', 'W', 'W', '.', 'W'},{'.', '.', 'W', 'W', 'W'} };W represent wall*/Nurikabe(char game[20][20], int n){}/*return 1 if result fit the rule.return 0 if result not fit the rule.*/int isCorrect(){}private://請設計你自己的資料結構來儲存遊戲的結果//Please design your own data structure to keet the result};int main() {int n, j, l, k;char game[20][20] = { {'W', 'W', 'W', '1', 'W'},{'W', '.', 'W', 'W', 'W'},{'W', '2', 'W', '.', '3'},{'3', 'W', 'W', '.', 'W'},{'.', '.', 'W', 'W', 'W'} };std::cin>>n;for(j = 0;j < n;j ++)for(k = 0;k < n;k ++)std::cin>>game[j][k];Nurikabe *a = new Nurikabe(game, n);std::cout<iscorrect();return 0;}
Computer Science We want to expand Bloom Filters by giving them the ability to delete keys as well. Since Bloom Filters can give false positives, we will not be able to check whether the item to be deleted has actually been added - instead, you just get to assume that the remove functions will never be called for items that have not been added previously. We want to keep an absolute guarantee that there will never be false negatives, that is, if a key k has been inserted into the Bloom Filter, the response must always be true when the Bloom Filter is queried for k. How would you change the implementation of the Bloom Filter to fix this problem? You don't need to give code or pseudo-code so long as your explanation is clear. Also discuss what you are sacrificing with this implementation.
Please make sure test cases pass import static org.junit.jupiter.api.Assertions.*; import java.util.*; import org.junit.jupiter.api.MethodOrderer; import org.junit.jupiter.api.Order; import org.junit.jupiter.api.Test; import org.junit.jupiter.api.TestMethodOrder; @TestMethodOrder(MethodOrderer.OrderAnnotation.class) class CSDTest { @Test @Order(1) void CheckChairEmployeeID100(){ ChairPerson chair = new ChairPerson("Rebert", "Jack", 59, "Male", "Birchmount Road"); CSD csd = new CSD(chair); assertEquals(100, chair.getEmployeeID(), "ChairPerson getID Fail"); } @Test @Order(2) void ShouldCompareDeptChairPerson(){ ChairPerson chair = new ChairPerson("Rebert", "Jack", 59, "Male", "Birchmount Road"); CSD csd = new CSD(chair); assertEquals(chair, csd.getChairPerson(), "CS Dept getChairPerson Fail"); } @Test @Order(3) void CheckChairID102AndFacultyID103(){ ChairPerson chair = new…
How to I write code in Java to depict a deadlock scenario. that has an addEdge() and a RemoveEdge() method. And if the edge is not removed, and the resource is not freed, then print "Deadlock".
Consider a scenario of Contacts Database, in which all information of user contacts will be stored. In the given scenario you have to implement your database of contacts using the Generic Arraylist you have created in Task 1. Steps to Follow:Step 1:In first step you have to create Contact class with the following attributes;● First Name● Last Name● Phone Number● Email AddressAdd mutator and accessor methods for all given attributesStep 2:You have to create a menu consisting of the following functionalities;1. Add a new contact2. Display all contacts3. Display specific contact 4. Delete a contact5. Quit
I have an error in the code: Failed : ConferenceClassIComparableTest.ConferenceTest `Conference` class should implement `IComparable` interface Expected: True But was: False at ConferenceClassIComparableTest.ConferenceTest () [0x00000] in <a9f68112596545e395054a4bf32f46b4>:0
Consider the possibility of a software that lets a surgeon in one city to help in a surgery on a patient in another city via the use of a web-based interface. Who may be interested in attacking the program? What kind of damage do you think they're trying to do? What kinds of flaws could they be able to exploit in order to inflict harm? Is it possible that such flaws may inflict damage even in the absence of an active, malevolent adversary to exploit them?