This document discusses supervised and unsupervised machine learning. Supervised learning uses labeled training data to learn a function that maps inputs to outputs. Unsupervised learning is used when only input data is available, with the goal of modeling underlying structures or distributions in the data. Common supervised algorithms include decision trees and logistic regression, while common unsupervised algorithms include k-means clustering and dimensionality reduction.

1. ARTIFICIAL INTELLIGENT
Supervised Learning and
Unsupervised Learning

2. PRESENTED BY
Hassan Fayyaz 105
Usama Fayyaz 107
Maryam Arshad 097
Zeeshan Yousaf 113

3. MACHINE LEARNING
Machine learning is a subfield of computer science that
explores the study and construction of algorithms that can
learn from and make predictions on data.
• Such algorithms operate by building a model from example
inputs in order to make data- driven predictions or
decisions, rather than following strictly static program
instructions.

4. TYPES OF MACHINE LEARNING
Supervised Learning
Unsupervised Learning

5. SUPERVISED LEARNING
Supervised learning is the task of inferring a function from
labeled training data. The training data consist of a set of
training examples.
In supervised learning, each example is a pair consisting of
an input object and a desired output value. A supervised
learning algorithm analyzes the training data and produces
an inferred function.

6. SUPERVISED LEARNING PROCESS FLOW

7. SUPERVISED LEARNING PROCESS: TWO STEPS
Learning (training): Learn a model using the training data
Testing: Test the model using unseen test data to assess
the model accuracy
Accuracy= No. of correct classifications / Total no of test cases

8. SUPERVISED LEARNING
Supervised learning problems can be further grouped into
regression and classification problems.
• Classification: A classification problem is when the output
variable is a category, such as “red” or “blue” or “disease”
and “no disease”.
• Regression: A regression problem is when the output
variable is a real value, such as “dollars” or “weight”.

9. LIST OF COMMON SUPERVISED MACHINE LEARNING
ALGORITHMS:
• Decision Trees
• K Nearest Neighbors
• Linear SVC (Support vector Classifier)
• Logistic Regression
• Linear Regression

10. ADVANTAGES OF SUPERVISED LEARNING
 It allows you to be very specific about the definition of the labels.
 You are able to determine the number of classes you want to
have.
 The input data is very well known and is labeled.
 The results produced by the supervised method are more
accurate.

11. DISADVANTAGES OF SUPERVISED LEARNING
 Supervised learning can be a complex method.
 Supervised learning needed a lot of computation time for
training
 If you have a dynamic big and growing data, you are not sure of
the labels to predefine the

12. UNSUPERVISED LEARNING
Unsupervised learning is where you only have input data (X)
and no corresponding output variables. The goal for
unsupervised learning is to model the underlying structure or
distribution in the data in order to learn more about the data.
• These are called unsupervised learning because unlike
supervised learning above there is no correct answers and
there is no teacher. Algorithms are left to their own devises to
discover and present the interesting structure in the data.

13. UNSUPERVISED LEARNING

14. UNSUPERVISED LEARNING
Unsupervised learning problems can be further grouped into clustering
and association problems.
Clustering: A clustering problem is where you want to discover
the inherent groupings in the data, such as grouping
customers by purchasing behavior.
Association: An association rule learning problem is where you
want to discover rules that describe large portions of your
data, such as people that buy X also tend to buy Y

15. LIST OF COMMON SUPERVISED MACHINE LEARNING
ALGORITHMS:
• K-means clustering
• K-NN (k nearest neighbors)
• Dimensionality Reduction
• Hierarchical clustering

16. ADVANTAGES OF SUPERVISED LEARNING
 Less complexity in comparison with supervised learning.
 It is often easier to get unlabeled data.
 Takes place in real time such that all the input data to be
analyzed and labeled in the presence of learners.

17. DISADVANTAGES OF SUPERVISED LEARNING
 You cannot get very specific about the definition of the data
sorting and the output.
 Less accuracy of the results.
 The results of the analysis cannot be ascertained.