What is the size of the key space if all 8 characters are randomly chosen 8-bit ascii characters?

You’ve just finished training an ensemble tree method for spam classification, and it is getting abnormally bad performance on y

inn [45]

Answer:

The various reasons that could be a major problem for the implementation are it involves a large number of parameters also, having a noisy data

Explanation:

Solution

The various reasons that could be causing the problem is given as follows :

1. A wide number of parameters :

In the ensemble tree method, the number of parameters which are needed to be trained is very large in numbers.

When the training is performed in this tree, then the model files the data too well.

When the model has tested against the new data point form the validation set, then this causes a large error because the model is trained completely according to the training data.

2. Noisy Data:

The data used to train the model is taken from the real world . The real world's data set is often noisy i.e. contains the missing filed or the wrong values.

When the tree is trained on this noisy data, then it sets its parameters according to the training data.

As regards to testing the model by applying the validate set, the model gives a large error of high in accuracy y.

8 0

3 years ago

Part 1: Create an application that allows you to enter student data that consists of an ID number, first name, last name, and gr

aleksley [76]

import java.io.*;

import java.util.Scanner;

public class StudentsStanding {

private static final double CUT_OFF = 2.0;

public static void main(String[] args)

{

try {

PrintWriter goodFile = new PrintWriter(new FileWriter("goodStanding.txt"));

PrintWriter probationFile = new PrintWriter(new FileWriter("probation.txt"));

char choice;

String firstName,lastName;

Scanner input = new Scanner(System.in);

int id;

double gradePoint;

do {

System.out.print("Enter student Id: ");

id = input.nextInt();

input.nextLine();

System.out.print("Enter First name: ");

firstName = input.nextLine();

System.out.print("Enter last name: ");

lastName = input.nextLine();

System.out.print("Enter grade point: ");

gradePoint = input.nextDouble();

if(gradePoint<CUT_OFF)

probationFile.println(id+","+firstName+","+lastName+","+gradePoint);

else

goodFile.println(id+","+firstName+","+lastName+","+gradePoint);

System.out.print("Do you want to continue..(y/n): ");

choice = input.next().toLowerCase().charAt(0);

}while (choice!='n');

//close the streams

goodFile.close();

probationFile.close();

}

catch (IOException ex)

{

System.err.println("IO Exception occurs...");

}

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

public class StudentsStanding2 {

private static final double CUT_OFF = 2.0;

public static void main(String[] args)

{

String header = "ID\t"+"First Name"+"\t"+"Last Name"+"\t"+"Grade Point"+"\t"+"Exceeds/Fall\n";

try {

Scanner probationFile= new Scanner(new File("probation.txt"));

Scanner goodFile = new Scanner(new File("goodStanding.txt"));

System.out.println("Cut Off is: "+CUT_OFF);

System.out.println(header);

double point ,exceed;

while (probationFile.hasNextLine())

{

String[] tokens = probationFile.nextLine().split(",");

point = Double.parseDouble(tokens[3]);

exceed = CUT_OFF-point;

System.out.println(String.format("%4s %7s %10s %10s %10s",tokens[0],tokens[1],tokens[2],point,String.format("%.2f",exceed)));

}

//Close the stream

probationFile.close();

while (goodFile.hasNextLine())

{

String[] tokens = goodFile.nextLine().split(",");

point = Double.parseDouble(tokens[3]);

exceed = point - CUT_OFF;

System.out.println(String.format("%4s %7s %10s %10s %10s",tokens[0],tokens[1],tokens[2],point,String.format("%.2f",exceed)));

}

goodFile.close();

}

catch (FileNotFoundException ex)

{

System.err.println("File not found!!!");

}

6 0

3 years ago

Alice is working on a web page to attract the maximum number of people to join her cause. She wants to inform people about the b

Deffense [45]

Answer:

Option D. Persuasive writing style

is correct answer.

Explanation:

Alice should adopt the persuasive writing style as she wants to convince the people to adopt eco-friendly methods of living.

When a person write persuasively, this means he/she will present justifications and reasons for that specific opinion he/she is trying to convince the audience.

For the correctness of their opinion, different kinds of evidences are prepared so that the fact persuade the reader.

Persuasive writing is used widely while writing academic papers, advertisements and argumentative essays as well.

7 0

3 years ago

You want to find the distance between two points.

maks197457 [2]

Answer:

For the first picture, choose the second pair, and for the second one, choose the first pair

Explanation:

5 0

3 years ago

On a client/server network, which computer initiates the process of assigning an IP address through DHCP?

Vera_Pavlovna [14]

Answer:

The client

Explanation:

On a client/server network, THE CLIENT computer initiates the process of assigning an IP address through DHCP. This is because "The Client" computer will serve as the Domain controller in which other computers of the network can find. Hence, The Client computer initiates the process of assigning IP addresses through DHCP to achieve this.

Though, in some case. A user can manually assign the IP address to computer if it is not through DHCP

4 0

3 years ago