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  1. Try Hack Me
  2. Advent of Cyber 2023

Day 14

Machine learning The Little Machine That Wanted to Learn

Learning Objectives

  • What is machine learning?

  • Basic machine learning structures and algorithms

  • Using neural networks to predict defective toys

This is a straightforward room with all the commands and instructions given to us

What is the other term given for Artificial Intelligence or the subset of AI meant to teach computers how humans think or nature works?
[REDACTED]
What ML structure aims to mimic the process of natural selection and evolution?
[REDACTED]
What is the name of the learning style that makes use of labelled data to train an ML structure?
[REDACTED]
What is the name of the layer between the Input and Output layers of a Neural Network?
[REDACTED]
What is the name of the process used to provide feedback to the Neural Network on how close its prediction was?
[REDACTED]
ubuntu@tryhackme:~/Desktop/NeuralNetwork$ python3 detector.py 
Sample of our data:
Features:
[[ 2.34  1.66 11.06  1.    4.    7.  ]
 [ 8.78  1.18  9.48  5.    8.   14.  ]
 [ 2.73  2.29  8.86  6.   13.   14.  ]]
Defective?:
[0 0 0]
Sampe of our data after normalization:
Features:
[[-1.5920688  -0.97226669 -0.25226287 -0.99947684 -0.97240182 -0.30828496]
 [ 1.03457918 -1.45651003 -0.86716466  0.99976423 -0.08558604  1.23726592]
 [-1.43300161 -0.3366973  -1.10845523  1.4995745   1.02293369  1.23726592]]
Defective?:
[0 0 0]
Starting to training our Neural Network
Training has been completed, validating neural network now....
Total Correct:		18285
Total Incorrect:	1715
Network Accuracy:	91.425%
Now we will predict the testing dataset for which we don't have the answers for...
Saving predictions to a file
Predictions are saved, this file can now be uploaded to verify your Neural Network
What is the value of the flag you received after achieving more than 90% accuracy on your submitted predictions?
[REDACTED]
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Last updated 1 year ago

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Flag recieved after file upload