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Agenda for Today’s Session
What is an Algorithm?
What is Machine Learning?
How is a problem solved using Machine Learning?
Types of Machine Learning
Machine Learning Algorithms
Demo
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What is an Algorithm?
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What is an Algorithm?
To tell a computer what it has to do, you need a program.
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What is an Algorithm?
To tell a computer what it has to do, you need a program.
A program is nothing but logic in some language’s syntax
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logic
What is an Algorithm?
To tell a computer what it has to do, you need a program.
This logic is what an
Algorithm is
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What is an Algorithm?
A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer
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Algorithm - Example
Start
Initialize X = 0
Increment X by 1
Print X
X< 20
END
NO
YES
This is a simple algorithm to print numbers from 1 to 20.
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What is Machine Learning?
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What is Machine Learning?
Machine learning is a type of artificial intelligence (AI) that provides computers with the ability to learn without being
explicitly programmed. Machine learning focuses on the development of computer programs that can change when exposed
to new data.
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Machine Learning Types
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Categories of Algorithms
Supervised Learning Reinforcement Learning Unsupervised Learning
Types of Learning
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Supervised Learning
Supervised Learning
Unsupervised Learning
Reinforcement Learning
Let’s take an example here. Say you are a teacher, and your way of teaching is,
To teach by example, i.e for every problem in their life you are providing solutions to them,
this type of learning is called supervised learning.
Let’s take the same example forward:
Supervised learning is a type of machine learning algorithm that uses a known dataset
(called the training dataset) to make predictions. The training dataset includes input data
and response values. From it, the supervised learning algorithm seeks to build a model that
can make predictions of the response values for a new dataset.
Teaching by Example
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Unsupervised Learning
Supervised Learning
Unsupervised Learning
Reinforcement Learning
When your kids are taking decisions out of their own understanding, this type of learning
would be Unsupervised Learning.
Unsupervised learning is a type of machine learning algorithm used to draw inferences
from datasets consisting of input data without labeled responses.
Self Learning
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Reinforcement learning is an area of machine learning inspired by behaviorist psychology,
concerned with how software agents ought to take actions in an environment so as to
maximize some notion of cumulative reward.
Reinforcement Learning
Supervised Learning
Unsupervised Learning
Reinforcement Learning
If a new situation comes up, the kid will take actions on his own i.e from his past
experiences, but as a parent towards the end of an action you can tell him whether he did
good or not.
Good or Bad?
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How a problem is solved using Machine Learning?
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How a problem is solved using Machine Learning?
We take a top down approach to answer the same:
Classification Algorithm
Anomaly Detection Algorithm
Regression Algorithms
Clustering Algorithms
Reinforcement Learning
Q1.
Q2.
Q4.
Q3.
Q5.
Is this A or B?
Is this weird?
How much or how many?
How is this organized?
What should I do next?
These are the 5 questions which can be answered in data science.
These algorithms are fitted into three types of categories, which are the following:
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Machine Learning Algorithms
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Classification Algorithms
Classification Algorithms are used to classify a record.
It is used for questions which can have only a limited number of answers.
For Example:
When you have only two choices, its called 2 class Classification, if you have more than 2 choices its called Multi Class
Classification
Is it cold?
Will you go to work today? Yes, No or Maybe
Yes or No
Yes, No or Maybe
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Anomaly Detection Algorithms
It analyzes a certain pattern and alerts you whenever there is change in the pattern.
For Example:
Anomaly
In real life, your credit card company uses these anomaly detection algorithms, and flag any transaction,
which is not usual as per your transaction history
Did you know?
Oh!
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Regression Algorithms
Regression Algorithms are used to calculate numeric values.
What will the temperature be tomorrow?
How much discount can you give on a particular item?
For example:
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Clustering Algorithms
It helps you understand the structure of a dataset.
These algorithms separates the data into groups or clusters, to ease out the interpretation of the data.
By understanding, how data is organized, you can better predict the behavior of a particular event
Group A
Group B
Group C
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Reinforcement Algorithms
These algorithms were designed as to how brains of humans or rats respond to punishments and rewards, they learn
from outcomes, and decide on next action.
They are good for systems which have to make lot of small decisions without human guidance.
For example:
A system which plays chess
A temperature control system, when it has to decide whether temperature
should be increased or decreased
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Demo
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Dataset
Training Dataset
Testing Dataset
A sample dataset to be used is divided like this:
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Thank You …
Questions/Queries/Feedback

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Machine Learning Algorithms | Machine Learning Tutorial | Data Science Tutorial | Edureka

  • 2. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Agenda for Today’s Session What is an Algorithm? What is Machine Learning? How is a problem solved using Machine Learning? Types of Machine Learning Machine Learning Algorithms Demo
  • 3. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is an Algorithm?
  • 4. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is an Algorithm? To tell a computer what it has to do, you need a program.
  • 5. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is an Algorithm? To tell a computer what it has to do, you need a program. A program is nothing but logic in some language’s syntax
  • 6. www.edureka.co/data-scienceEdureka’s Data Science Certification Training logic What is an Algorithm? To tell a computer what it has to do, you need a program. This logic is what an Algorithm is
  • 7. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is an Algorithm? A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer
  • 8. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Algorithm - Example Start Initialize X = 0 Increment X by 1 Print X X< 20 END NO YES This is a simple algorithm to print numbers from 1 to 20.
  • 9. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is Machine Learning?
  • 10. www.edureka.co/data-scienceEdureka’s Data Science Certification Training What is Machine Learning? Machine learning is a type of artificial intelligence (AI) that provides computers with the ability to learn without being explicitly programmed. Machine learning focuses on the development of computer programs that can change when exposed to new data.
  • 11. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Machine Learning Types
  • 12. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Categories of Algorithms Supervised Learning Reinforcement Learning Unsupervised Learning Types of Learning
  • 13. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Supervised Learning Supervised Learning Unsupervised Learning Reinforcement Learning Let’s take an example here. Say you are a teacher, and your way of teaching is, To teach by example, i.e for every problem in their life you are providing solutions to them, this type of learning is called supervised learning. Let’s take the same example forward: Supervised learning is a type of machine learning algorithm that uses a known dataset (called the training dataset) to make predictions. The training dataset includes input data and response values. From it, the supervised learning algorithm seeks to build a model that can make predictions of the response values for a new dataset. Teaching by Example
  • 14. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Unsupervised Learning Supervised Learning Unsupervised Learning Reinforcement Learning When your kids are taking decisions out of their own understanding, this type of learning would be Unsupervised Learning. Unsupervised learning is a type of machine learning algorithm used to draw inferences from datasets consisting of input data without labeled responses. Self Learning
  • 15. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Reinforcement learning is an area of machine learning inspired by behaviorist psychology, concerned with how software agents ought to take actions in an environment so as to maximize some notion of cumulative reward. Reinforcement Learning Supervised Learning Unsupervised Learning Reinforcement Learning If a new situation comes up, the kid will take actions on his own i.e from his past experiences, but as a parent towards the end of an action you can tell him whether he did good or not. Good or Bad?
  • 16. www.edureka.co/data-scienceEdureka’s Data Science Certification Training How a problem is solved using Machine Learning?
  • 17. www.edureka.co/data-scienceEdureka’s Data Science Certification Training How a problem is solved using Machine Learning? We take a top down approach to answer the same: Classification Algorithm Anomaly Detection Algorithm Regression Algorithms Clustering Algorithms Reinforcement Learning Q1. Q2. Q4. Q3. Q5. Is this A or B? Is this weird? How much or how many? How is this organized? What should I do next? These are the 5 questions which can be answered in data science. These algorithms are fitted into three types of categories, which are the following:
  • 18. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Machine Learning Algorithms
  • 19. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Classification Algorithms Classification Algorithms are used to classify a record. It is used for questions which can have only a limited number of answers. For Example: When you have only two choices, its called 2 class Classification, if you have more than 2 choices its called Multi Class Classification Is it cold? Will you go to work today? Yes, No or Maybe Yes or No Yes, No or Maybe
  • 20. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Anomaly Detection Algorithms It analyzes a certain pattern and alerts you whenever there is change in the pattern. For Example: Anomaly In real life, your credit card company uses these anomaly detection algorithms, and flag any transaction, which is not usual as per your transaction history Did you know? Oh!
  • 21. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Regression Algorithms Regression Algorithms are used to calculate numeric values. What will the temperature be tomorrow? How much discount can you give on a particular item? For example:
  • 22. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Clustering Algorithms It helps you understand the structure of a dataset. These algorithms separates the data into groups or clusters, to ease out the interpretation of the data. By understanding, how data is organized, you can better predict the behavior of a particular event Group A Group B Group C
  • 23. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Reinforcement Algorithms These algorithms were designed as to how brains of humans or rats respond to punishments and rewards, they learn from outcomes, and decide on next action. They are good for systems which have to make lot of small decisions without human guidance. For example: A system which plays chess A temperature control system, when it has to decide whether temperature should be increased or decreased
  • 25. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Dataset Training Dataset Testing Dataset A sample dataset to be used is divided like this:
  • 26. www.edureka.co/data-scienceEdureka’s Data Science Certification Training Thank You … Questions/Queries/Feedback