Machine Learning

Machine learning/Deep learning/AI these technologies are very famous now a days. In this post today i am gonna present the very high level understanding of machine learning.

What is machine learning?

In simple words machine learning is, computers the ability to learn without explicit program is called machine learning.

Machine learning/AI these are not new technologies. these technologies are present even in long back too. Now a days these technologies becoming popular. why?

Why these technologies are matter now?

Data,.........Data .......... today every where we have huge amount of digital data, by using this computers are able to learn by themselves.

How the computers are able to learn from data?

Generally we have two types of data structured data and unstructured data.

• Learning from structured data is called supervised machine learning.

structured data means data is a set of input/output pairs for example lets take housing prices.

Area No.of bedrooms Price of house

1100 sq.ft 2 $50000

1500 sq.ft 3 $100000

.......

From the above data using supervised machine learning algorithms we can predict a price of house which has a area of 600 sq.ft and 1 bed room

• Learning from unstructured is called unsupervised machine learning.

unstructured data is not in the form of input/output pairs, for example person's details in a village.

Name Age Sex D.O.B

Jon 27 M 8/25/1990

..........

If you give above data to unsupervised machine learning algorithm it will group the data based on SEX, Age and D.O.B

Why the conventional programming model (by writing the lines of code to achieve desired output) failed?

The conventional programming model is not fit for some problems like spam classifier, artificial vision and speech processing etc...

Let's take a spam classifier to identify an email whether it is spam or not spam. In conventional programming style. we have to write a code like following.

if mailbody.contains these words offers, discounts, deals .... etc

mark that as spam. but this is not gonna be same suppose if they changed the mail body like Off8r , Dea1 ,d1scount again you have to make changes to your to add these words.... This will go on.

machine learning algorithms will take a different approach to solve those problems. I will share those in my next post.